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2017-11-05Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Various fixes: - synchronize kernel and tooling headers - cgroup support fix - two tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/headers: Synchronize kernel ABI headers perf/cgroup: Fix perf cgroup hierarchy support perf tools: Unwind properly location after REJECT perf symbols: Fix memory corruption because of zero length symbols
2017-11-04tools/headers: Synchronize kernel ABI headersIngo Molnar
After the SPDX license tags were added a number of tooling headers got out of sync with their kernel variants, generating lots of build warnings. Sync them: - tools/arch/x86/include/asm/disabled-features.h, tools/arch/x86/include/asm/required-features.h, tools/include/linux/hash.h: Remove the SPDX tag where the kernel version does not have it. - tools/include/asm-generic/bitops/__fls.h, tools/include/asm-generic/bitops/arch_hweight.h, tools/include/asm-generic/bitops/const_hweight.h, tools/include/asm-generic/bitops/fls.h, tools/include/asm-generic/bitops/fls64.h, tools/include/uapi/asm-generic/ioctls.h, tools/include/uapi/asm-generic/mman-common.h, tools/include/uapi/sound/asound.h, tools/include/uapi/linux/kvm.h, tools/include/uapi/linux/perf_event.h, tools/include/uapi/linux/sched.h, tools/include/uapi/linux/vhost.h, tools/include/uapi/sound/asound.h: Add the SPDX tag of the respective kernel header. - tools/include/uapi/linux/bpf_common.h, tools/include/uapi/linux/fcntl.h, tools/include/uapi/linux/hw_breakpoint.h, tools/include/uapi/linux/mman.h, tools/include/uapi/linux/stat.h, Change the tag to the kernel header version: -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ Also sync other header details: - include/uapi/sound/asound.h: Fix pointless end of line whitespace noise the header grew in this cycle. - tools/arch/x86/lib/memcpy_64.S: Sync the code and add tools/include/asm/export.h with dummy wrappers to support building the kernel side code in a tooling header environment. - tools/include/uapi/asm-generic/mman.h, tools/include/uapi/linux/bpf.h: Sync other details that don't impact tooling's use of the ABIs. Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-04objtool: Resync objtool's instruction decoder source code copy with the ↵Josh Poimboeuf
kernel's latest version This fixes the following warning: warning: objtool: x86 instruction decoder differs from kernel Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/013315a808ccf5580abc293808827c8e2b5e1354.1509719152.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-03Merge branch 'linus' into perf/urgent, to pick up dependent commitsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-02Merge tag 'spdx_identifiers-4.14-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull initial SPDX identifiers from Greg KH: "License cleanup: add SPDX license identifiers to some files Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: License cleanup: add SPDX license identifier to uapi header files with a license License cleanup: add SPDX license identifier to uapi header files with no license License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02Merge tag 'linux-kselftest-4.14-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fix from Shuah Khan: "This consists of a single fix to a regression to printing individual test results to the console. An earlier commit changed it to printing just the summary of results, which will negatively impact users that rely on console log to look at the individual test failures. This fix makes it optional to print summary and by default results get printed to the console" * tag 'linux-kselftest-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: lib.mk: print individual test results to console by default
2017-11-02License cleanup: add SPDX license identifier to uapi header files with a licenseGreg Kroah-Hartman
Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02License cleanup: add SPDX license identifier to uapi header files with no ↵Greg Kroah-Hartman
license Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01bpf: remove SK_REDIRECT from UAPIJohn Fastabend
Now that SK_REDIRECT is no longer a valid return code. Remove it from the UAPI completely. Then do a namespace remapping internal to sockmap so SK_REDIRECT is no longer externally visible. Patchs primary change is to do a namechange from SK_REDIRECT to __SK_REDIRECT Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-31selftests: lib.mk: print individual test results to console by defaultShuah Khan
Change run_tests to print individual test results to console by default. Introduce "summary" option to print individual test results to a file /tmp/test_name and just print the summary to the console. This change is necessary to support use-cases where test machines get rebooted once tests are run and the console log should contain the full results. In the following example, individual test results with "summary=1" option are written to /tmp/kcmp_test make --silent TARGETS=kcmp kselftest TAP version 13 selftests: kcmp_test ======================================== pid1: 30126 pid2: 30127 FD: 2 FILES: 2 VM: 1 FS: 2 SIGHAND: 2 IO: 0 SYSVSEM: 0 INV: -1 PASS: 0 returned as expected PASS: 0 returned as expected FAIL: 0 expected but -1 returned (Invalid argument) Pass 2 Fail 1 Xfail 0 Xpass 0 Skip 0 Error 0 1..3 Bail out! Pass 2 Fail 1 Xfail 0 Xpass 0 Skip 0 Error 0 1..3 Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0 1..0 ok 1..1 selftests: kcmp_test [PASS] make --silent TARGETS=kcmp summary=1 kselftest TAP version 13 selftests: kcmp_test ======================================== ok 1..1 selftests: kcmp_test [PASS] Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-10-31tc-testing: fix arg to ip command: -s -> -nBrenda J. Butler
Fixes: 31c2611b66e0 ("selftests: Introduce a new test case to tc testsuite") Fixes: 76b903ee198d ("selftests: Introduce tc testsuite") Signed-off-by: Brenda J. Butler <bjb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix route leak in xfrm_bundle_create(). 2) In mac80211, validate user rate mask before configuring it. From Johannes Berg. 3) Properly enforce memory limits in fair queueing code, from Toke Hoiland-Jorgensen. 4) Fix lockdep splat in inet_csk_route_req(), from Eric Dumazet. 5) Fix TSO header allocation and management in mvpp2 driver, from Yan Markman. 6) Don't take socket lock in BH handler in strparser code, from Tom Herbert. 7) Don't show sockets from other namespaces in AF_UNIX code, from Andrei Vagin. 8) Fix double free in error path of tap_open(), from Girish Moodalbail. 9) Fix TX map failure path in igb and ixgbe, from Jean-Philippe Brucker and Alexander Duyck. 10) Fix DCB mode programming in stmmac driver, from Jose Abreu. 11) Fix err_count handling in various tunnels (ipip, ip6_gre). From Xin Long. 12) Properly align SKB head before building SKB in tuntap, from Jason Wang. 13) Avoid matching qdiscs with a zero handle during lookups, from Cong Wang. 14) Fix various endianness bugs in sctp, from Xin Long. 15) Fix tc filter callback races and add selftests which trigger the problem, from Cong Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits) selftests: Introduce a new test case to tc testsuite selftests: Introduce a new script to generate tc batch file net_sched: fix call_rcu() race on act_sample module removal net_sched: add rtnl assertion to tcf_exts_destroy() net_sched: use tcf_queue_work() in tcindex filter net_sched: use tcf_queue_work() in rsvp filter net_sched: use tcf_queue_work() in route filter net_sched: use tcf_queue_work() in u32 filter net_sched: use tcf_queue_work() in matchall filter net_sched: use tcf_queue_work() in fw filter net_sched: use tcf_queue_work() in flower filter net_sched: use tcf_queue_work() in flow filter net_sched: use tcf_queue_work() in cgroup filter net_sched: use tcf_queue_work() in bpf filter net_sched: use tcf_queue_work() in basic filter net_sched: introduce a workqueue for RCU callbacks of tc filter sctp: fix some type cast warnings introduced since very beginning sctp: fix a type cast warnings that causes a_rwnd gets the wrong value sctp: fix some type cast warnings introduced by transport rhashtable sctp: fix some type cast warnings introduced by stream reconf ...
2017-10-29selftests: Introduce a new test case to tc testsuiteChris Mi
In this patchset, we fixed a tc bug. This patch adds the test case that reproduces the bug. To run this test case, user should specify an existing NIC device: # sudo ./tdc.py -d enp4s0f0 This test case belongs to category "flower". If user doesn't specify a NIC device, the test cases belong to "flower" will not be run. In this test case, we create 1M filters and all filters share the same action. When destroying all filters, kernel should not panic. It takes about 18s to run it. Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Lucas Bates <lucasb@mojatatu.com> Signed-off-by: Chris Mi <chrism@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29selftests: Introduce a new script to generate tc batch fileChris Mi
# ./tdc_batch.py -h usage: tdc_batch.py [-h] [-n NUMBER] [-o] [-s] [-p] device file TC batch file generator positional arguments: device device name file batch file name optional arguments: -h, --help show this help message and exit -n NUMBER, --number NUMBER how many lines in batch file -o, --skip_sw skip_sw (offload), by default skip_hw -s, --share_action all filters share the same action -p, --prio all filters have different prio Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Lucas Bates <lucasb@mojatatu.com> Signed-off-by: Chris Mi <chrism@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29bpf: rename sk_actions to align with bpf infrastructureJohn Fastabend
Recent additions to support multiple programs in cgroups impose a strict requirement, "all yes is yes, any no is no". To enforce this the infrastructure requires the 'no' return code, SK_DROP in this case, to be 0. To apply these rules to SK_SKB program types the sk_actions return codes need to be adjusted. This fix adds SK_PASS and makes 'SK_DROP = 0'. Finally, remove SK_ABORTED to remove any chance that the API may allow aborted program flows to be passed up the stack. This would be incorrect behavior and allow programs to break existing policies. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-28Merge tag 'kbuild-fixes-v4.14-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - fix O= building on dash - remove unused dependency in Makefile - fix default of a choice in Kconfig - fix typos and documentation style - fix command options unrecognized by sparse * tag 'kbuild-fixes-v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: clang: fix build failures with sparse check kbuild doc: a bundle of fixes on makefiles.txt Makefile: kselftest: fix grammar typo kbuild: Fix optimization level choice default kbuild: drop unused symverfile in Makefile.modpost kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)
2017-10-27perf tools: Unwind properly location after REJECTJiri Olsa
We have defined YY_USER_ACTION to keep trace of the column location during events parsing, but we need to clean it up when we call REJECT. When REJECT is called, the lexer shrinks the text and re-runs the matching, so we need to address it in resuming the previous location value to keep it correct for error display, like: Before: $ perf stat -e 'cpu/uops_executed.core,krava/' true event syntax error: '..38;5;9:mi=01;05;37;41:su=48;5;196;38;5;15:sg=48;5;1\ 1;38;5;16:ca=48;5;196;38;5;226:tw=48;5;10;38;5;16:ow=48;5;10;38;5;21:st=48;5;\ 21;38;50 �' \___ unknown term After: $ ./perf stat -e 'cpu/uops_executed.core,krava/' true event syntax error: '..cuted.core,krava/' \___ unknown term Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Andi Kleen <ak@linux.intel.com> Cc: Changbin Du <changbin.du@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-vug2hchlny30jfsfrumbym26@git.kernel.org Link: http://lkml.kernel.org/r/20171009140944.GD28623@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-25perf symbols: Fix memory corruption because of zero length symbolsRavi Bangoria
Perf top is often crashing at very random locations on powerpc. After investigating, I found the crash only happens when sample is of zero length symbol. Powerpc kernel has many such symbols which does not contain length details in vmlinux binary and thus start and end addresses of such symbols are same. Structure struct sym_hist { u64 nr_samples; u64 period; struct sym_hist_entry addr[0]; }; has last member 'addr[]' of size zero. 'addr[]' is an array of addresses that belongs to one symbol (function). If function consist of 100 instructions, 'addr' points to an array of 100 'struct sym_hist_entry' elements. For zero length symbol, it points to the *empty* array, i.e. no members in the array and thus offset 0 is also invalid for such array. static int __symbol__inc_addr_samples(...) { ... offset = addr - sym->start; h = annotation__histogram(notes, evidx); h->nr_samples++; h->addr[offset].nr_samples++; h->period += sample->period; h->addr[offset].period += sample->period; ... } Here, when 'addr' is same as 'sym->start', 'offset' becomes 0, which is valid for normal symbols but *invalid* for zero length symbols and thus updating h->addr[offset] causes memory corruption. Fix this by adding one dummy element for zero length symbols. Link: https://lkml.org/lkml/2016/10/10/148 Fixes: edee44be5919 ("perf annotate: Don't throw error for zero length symbols") Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/1508854806-10542-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-22Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "A series of fixes for perf tooling: - Make xyarray return the X/Y size correctly which fixes a crash in the exit code. - Fix the libc path in test so it works not only on Debian/Ubuntu correctly - Check for eBPF file existance and output a useful error message instead of failing to compile a non existant file - Make sure perf_hpp_fmt is not longer references before freeing it - Use list_del_init() in the histogram code to prevent a crash when the already deleted element is deleted again - Remove the leftovers of the removed '-l' option - Add reviewer entries to the MAINTAINERS file" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf test shell trace+probe_libc_inet_pton.sh: Be compatible with Debian/Ubuntu perf xyarray: Fix wrong processing when closing evsel fd perf buildid-list: Fix crash when processing PERF_RECORD_NAMESPACE perf record: Fix documentation for a inexistent option '-l' perf tools: Add long time reviewers to MAINTAINERS perf tools: Check wether the eBPF file exists in event parsing perf hists: Add extra integrity checks to fmt_free() perf hists: Fix crash in perf_hpp__reset_output_field()
2017-10-22Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fix from Thomas Gleixner: "Plug a memory leak in the instruction decoder" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix memory leak in decode_instructions()
2017-10-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "A little more than usual this time around. Been travelling, so that is part of it. Anyways, here are the highlights: 1) Deal with memcontrol races wrt. listener dismantle, from Eric Dumazet. 2) Handle page allocation failures properly in nfp driver, from Jaku Kicinski. 3) Fix memory leaks in macsec, from Sabrina Dubroca. 4) Fix crashes in pppol2tp_session_ioctl(), from Guillaume Nault. 5) Several fixes in bnxt_en driver, including preventing potential NVRAM parameter corruption from Michael Chan. 6) Fix for KRACK attacks in wireless, from Johannes Berg. 7) rtnetlink event generation fixes from Xin Long. 8) Deadlock in mlxsw driver, from Ido Schimmel. 9) Disallow arithmetic operations on context pointers in bpf, from Jakub Kicinski. 10) Missing sock_owned_by_user() check in sctp_icmp_redirect(), from Xin Long. 11) Only TCP is supported for sockmap, make that explicit with a check, from John Fastabend. 12) Fix IP options state races in DCCP and TCP, from Eric Dumazet. 13) Fix panic in packet_getsockopt(), also from Eric Dumazet. 14) Add missing locked in hv_sock layer, from Dexuan Cui. 15) Various aquantia bug fixes, including several statistics handling cures. From Igor Russkikh et al. 16) Fix arithmetic overflow in devmap code, from John Fastabend. 17) Fix busted socket memory accounting when we get a fault in the tcp zero copy paths. From Willem de Bruijn. 18) Don't leave opt->tot_len uninitialized in ipv6, from Eric Dumazet" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (106 commits) stmmac: Don't access tx_q->dirty_tx before netif_tx_lock ipv6: flowlabel: do not leave opt->tot_len with garbage of_mdio: Fix broken PHY IRQ in case of probe deferral textsearch: fix typos in library helpers rxrpc: Don't release call mutex on error pointer net: stmmac: Prevent infinite loop in get_rx_timestamp_status() net: stmmac: Fix stmmac_get_rx_hwtstamp() net: stmmac: Add missing call to dev_kfree_skb() mlxsw: spectrum_router: Configure TIGCR on init mlxsw: reg: Add Tunneling IPinIP General Configuration Register net: ethtool: remove error check for legacy setting transceiver type soreuseport: fix initialization race net: bridge: fix returning of vlan range op errors sock: correct sk_wmem_queued accounting on efault in tcp zerocopy bpf: add test cases to bpf selftests to cover all access tests bpf: fix pattern matches for direct packet access bpf: fix off by one for range markings with L{T, E} patterns bpf: devmap fix arithmetic overflow in bitmap_size calculation net: aquantia: Bad udp rate on default interrupt coalescing net: aquantia: Enable coalescing management via ethtool interface ...
2017-10-22bpf: add test cases to bpf selftests to cover all access testsDaniel Borkmann
Lets add test cases to cover really all possible direct packet access tests for good/bad access cases so we keep tracking them. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-20bpf: remove mark access for SK_SKB program typesJohn Fastabend
The skb->mark field is a union with reserved_tailroom which is used in the TCP code paths from stream memory allocation. Allowing SK_SKB programs to set this field creates a conflict with future code optimizations, such as "gifting" the skb to the egress path instead of creating a new skb and doing a memcpy. Because we do not have a released version of SK_SKB yet lets just remove it for now. A more appropriate scratch pad to use at the socket layer is dev_scratch, but lets add that in future kernels when needed. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-20bpf: avoid preempt enable/disable in sockmap using tcp_skb_cb regionJohn Fastabend
SK_SKB BPF programs are run from the socket/tcp context but early in the stack before much of the TCP metadata is needed in tcp_skb_cb. So we can use some unused fields to place BPF metadata needed for SK_SKB programs when implementing the redirect function. This allows us to drop the preempt disable logic. It does however require an API change so sk_redirect_map() has been updated to additionally provide ctx_ptr to skb. Note, we do however continue to disable/enable preemption around actual BPF program running to account for map updates. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-20bpf: enforce TCP only support for sockmapJohn Fastabend
Only TCP sockets have been tested and at the moment the state change callback only handles TCP sockets. This adds a check to ensure that sockets actually being added are TCP sockets. For net-next we can consider UDP support. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-20objtool: Fix memory leak in decode_instructions()Kamalesh Babulal
When an error occurs before adding an allocated insn to the list, free it before returning. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/336da800bf6070eae11f4e0a3b9ca64c27658114.1508430423.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-20Merge tag 'perf-urgent-for-mingo-4.14-20171019' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix crash in perf_hpp__reset_output_field() (Jiri Olsa) - Fix eBPF file/vendor events ambiguity in event specification (Jiri Olsa) - Fix closing evsel fd in 'perf stat' (Jin Yao) - Make perf test shell trace+probe_libc_inet_pton.sh pass in Debian/Ubuntu (Li Zhijian) - Fix 'perf buildid-list --with-hits' crash when processing PERF_RECORD_NAMESPACE (Namhyung Kim) - Fix documentation for an inexistent option 'perf record -l' (Taeung Song) - Add long time reviewers to MAINTAINERS (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-18bpf: disallow arithmetic operations on context pointerJakub Kicinski
Commit f1174f77b50c ("bpf/verifier: rework value tracking") removed the crafty selection of which pointer types are allowed to be modified. This is OK for most pointer types since adjust_ptr_min_max_vals() will catch operations on immutable pointers. One exception is PTR_TO_CTX which is now allowed to be offseted freely. The intent of aforementioned commit was to allow context access via modified registers. The offset passed to ->is_valid_access() verifier callback has been adjusted by the value of the variable offset. What is missing, however, is taking the variable offset into account when the context register is used. Or in terms of the code adding the offset to the value passed to the ->convert_ctx_access() callback. This leads to the following eBPF user code: r1 += 68 r0 = *(u32 *)(r1 + 8) exit being translated to this in kernel space: 0: (07) r1 += 68 1: (61) r0 = *(u32 *)(r1 +180) 2: (95) exit Offset 8 is corresponding to 180 in the kernel, but offset 76 is valid too. Verifier will "accept" access to offset 68+8=76 but then "convert" access to offset 8 as 180. Effective access to offset 248 is beyond the kernel context. (This is a __sk_buff example on a debug-heavy kernel - packet mark is 8 -> 180, 76 would be data.) Dereferencing the modified context pointer is not as easy as dereferencing other types, because we have to translate the access to reading a field in kernel structures which is usually at a different offset and often of a different size. To allow modifying the pointer we would have to make sure that given eBPF instruction will always access the same field or the fields accessed are "compatible" in terms of offset and size... Disallow dereferencing modified context pointers and add to selftests the test case described here. Fixes: f1174f77b50c ("bpf/verifier: rework value tracking") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-18perf test shell trace+probe_libc_inet_pton.sh: Be compatible with Debian/UbuntuLi Zhijian
In debian/ubuntu, libc.so is located at a different place, /lib/x86_64-linux-gnu/libc-2.23.so, so it outputs like this when testing: PING ::1(::1) 56 data bytes 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.040 ms --- ::1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.040/0.040/0.040/0.000 ms 0.000 probe_libc:inet_pton:(7f0e2db741c0)) __GI___inet_pton (/lib/x86_64-linux-gnu/libc-2.23.so) getaddrinfo (/lib/x86_64-linux-gnu/libc-2.23.so) [0xffffa9d40f34ff4d] (/bin/ping) Fix up the libc path to make sure this test works in more OSes. Committer testing: When this test fails one can use 'perf test -v', i.e. in verbose mode, where it'll show the expected backtrace, so, after applying this test: On Fedora 26: # perf test -v ping 62: probe libc's inet_pton & backtrace it with ping : --- start --- test child forked, pid 23322 PING ::1(::1) 56 data bytes 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.058 ms --- ::1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.058/0.058/0.058/0.000 ms 0.000 probe_libc:inet_pton:(7fe344310d80)) __GI___inet_pton (/usr/lib64/libc-2.25.so) getaddrinfo (/usr/lib64/libc-2.25.so) _init (/usr/bin/ping) test child finished with 0 ---- end ---- probe libc's inet_pton & backtrace it with ping: Ok # Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Li Zhijian <lizhijian@cn.fujitsu.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Philip Li <philip.li@intel.com> Link: http://lkml.kernel.org/r/1508315649-18836-1-git-send-email-lizhijian@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-18perf xyarray: Fix wrong processing when closing evsel fdJin Yao
In current xyarray code, xyarray__max_x() returns max_y, and xyarray__max_y() returns max_x. It's confusing and for code logic it looks not correct. Error happens when closing evsel fd. Let's see this scenario: 1. Allocate an fd (pseudo-code) perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) { evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int)); } xyarray__new(int xlen, int ylen, size_t entry_size) { size_t row_size = ylen * entry_size; struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size); xy->entry_size = entry_size; xy->row_size = row_size; xy->entries = xlen * ylen; xy->max_x = xlen; xy->max_y = ylen; ...... } So max_x is ncpus, max_y is nthreads and row_size = nthreads * 4. 2. Use perf syscall and get the fd int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, struct thread_map *threads) { for (cpu = 0; cpu < cpus->nr; cpu++) { for (thread = 0; thread < nthreads; thread++) { int fd, group_fd; fd = sys_perf_event_open(&evsel->attr, pid, cpus->map[cpu], group_fd, flags); FD(evsel, cpu, thread) = fd; } } static inline void *xyarray__entry(struct xyarray *xy, int x, int y) { return &xy->contents[x * xy->row_size + y * xy->entry_size]; } These codes don't have issues. The issue happens in the closing of fd. 3. Close fd. void perf_evsel__close_fd(struct perf_evsel *evsel) { int cpu, thread; for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) { close(FD(evsel, cpu, thread)); FD(evsel, cpu, thread) = -1; } } Since xyarray__max_x() returns max_y (nthreads) and xyarry__max_y() returns max_x (ncpus), so above code is actually to be: for (cpu = 0; cpu < nthreads; cpu++) for (thread = 0; thread < ncpus; ++thread) { close(FD(evsel, cpu, thread)); FD(evsel, cpu, thread) = -1; } It's not correct! This change is introduced by "475fb533fb7d" ("perf evsel: Fix buffer overflow while freeing events") This fix is to let xyarray__max_x() return max_x (ncpus) and let xyarry__max_y() return max_y (nthreads) Committer note: This was also fixed by Ravi Bangoria, who provided the same patch, noticing the problem with 'perf record': <quote Ravi> I see 'perf record -p <pid>' crashes with following log: *** Error in `./perf': free(): invalid next size (normal): 0x000000000298b340 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f7fd85c87e5] /lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7f7fd85d137a] /lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f7fd85d553c] ./perf(perf_evsel__close+0xb4)[0x4b7614] ./perf(perf_evlist__delete+0x100)[0x4ab180] ./perf(cmd_record+0x1d9)[0x43a5a9] ./perf[0x49aa2f] ./perf(main+0x631)[0x427841] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f7fd8571830] ./perf(_start+0x29)[0x427a59] </> Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Fixes: d74be4767367 ("perf xyarray: Save max_x, max_y") Link: http://lkml.kernel.org/r/1508339478-26674-1-git-send-email-yao.jin@linux.intel.com Link: http://lkml.kernel.org/r/1508327446-15302-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-18Revert "tools/power turbostat: stop migrating, unless '-m'"Len Brown
This reverts commit c91fc8519d87715a3a173475ea3778794c139996. That change caused a C6 and PC6 residency regression on large idle systems. Users also complained about new output indicating jitter: turbostat: cpu6 jitter 3794 9142 Signed-off-by: Len Brown <len.brown@intel.com> Cc: 4.13+ <stable@vger.kernel.org> # v4.13+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-10-17perf buildid-list: Fix crash when processing PERF_RECORD_NAMESPACENamhyung Kim
Thomas reported that 'perf buildid-list' gets a SEGFAULT due to NULL pointer deref when he ran it on a data with namespace events. It was because the buildid_id__mark_dso_hit_ops lacks the namespace event handler and perf_too__fill_default() didn't set it. Program received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () Missing separate debuginfos, use: dnf debuginfo-install audit-libs-2.7.7-1.fc25.s390x bzip2-libs-1.0.6-21.fc25.s390x elfutils-libelf-0.169-1.fc25.s390x +elfutils-libs-0.169-1.fc25.s390x libcap-ng-0.7.8-1.fc25.s390x numactl-libs-2.0.11-2.ibm.fc25.s390x openssl-libs-1.1.0e-1.1.ibm.fc25.s390x perl-libs-5.24.1-386.fc25.s390x +python-libs-2.7.13-2.fc25.s390x slang-2.3.0-7.fc25.s390x xz-libs-5.2.3-2.fc25.s390x zlib-1.2.8-10.fc25.s390x (gdb) where #0 0x0000000000000000 in ?? () #1 0x00000000010fad6a in machines__deliver_event (machines=<optimized out>, machines@entry=0x2c6fd18, evlist=<optimized out>, event=event@entry=0x3fffdf00470, sample=0x3ffffffe880, sample@entry=0x3ffffffe888, tool=tool@entry=0x1312968 <build_id.mark_dso_hit_ops>, file_offset=1136) at util/session.c:1287 #2 0x00000000010fbf4e in perf_session__deliver_event (file_offset=1136, tool=0x1312968 <build_id.mark_dso_hit_ops>, sample=0x3ffffffe888, event=0x3fffdf00470, session=0x2c6fc30) at util/session.c:1340 #3 perf_session__process_event (session=0x2c6fc30, session@entry=0x0, event=event@entry=0x3fffdf00470, file_offset=file_offset@entry=1136) at util/session.c:1522 #4 0x00000000010fddde in __perf_session__process_events (file_size=11880, data_size=<optimized out>, data_offset=<optimized out>, session=0x0) at util/session.c:1899 #5 perf_session__process_events (session=0x0, session@entry=0x2c6fc30) at util/session.c:1953 #6 0x000000000103b2ac in perf_session__list_build_ids (with_hits=<optimized out>, force=<optimized out>) at builtin-buildid-list.c:83 #7 cmd_buildid_list (argc=<optimized out>, argv=<optimized out>) at builtin-buildid-list.c:115 #8 0x00000000010a026c in run_builtin (p=0x1311f78 <commands+24>, argc=argc@entry=2, argv=argv@entry=0x3fffffff3c0) at perf.c:296 #9 0x000000000102bc00 in handle_internal_command (argv=<optimized out>, argc=2) at perf.c:348 #10 run_argv (argcp=<synthetic pointer>, argv=<synthetic pointer>) at perf.c:392 #11 main (argc=<optimized out>, argv=0x3fffffff3c0) at perf.c:536 (gdb) Fix it by adding a stub event handler for namespace event. Committer testing: Further clarifying, plain using 'perf buildid-list' will not end up in a SEGFAULT when processing a perf.data file with namespace info: # perf record -a --namespaces sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.024 MB perf.data (1058 samples) ] # perf buildid-list | wc -l 38 # perf buildid-list | head -5 e2a171c7b905826fc8494f0711ba76ab6abbd604 /lib/modules/4.14.0-rc3+/build/vmlinux 874840a02d8f8a31cedd605d0b8653145472ced3 /lib/modules/4.14.0-rc3+/kernel/arch/x86/kvm/kvm-intel.ko ea7223776730cd8a22f320040aae4d54312984bc /lib/modules/4.14.0-rc3+/kernel/drivers/gpu/drm/i915/i915.ko 5961535e6732a8edb7f22b3f148bb2fa2e0be4b9 /lib/modules/4.14.0-rc3+/kernel/drivers/gpu/drm/drm.ko f045f54aa78cf1931cc893f78b6cbc52c72a8cb1 /usr/lib64/libc-2.25.so # It is only when one asks for checking what of those entries actually had samples, i.e. when we use either -H or --with-hits, that we will process all the PERF_RECORD_ events, and since tools/perf/builtin-buildid-list.c neither explicitely set a perf_tool.namespaces() callback nor the default stub was set that we end up, when processing a PERF_RECORD_NAMESPACE record, causing a SEGFAULT: # perf buildid-list -H Segmentation fault (core dumped) ^C # Reported-and-Tested-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Hari Bathini <hbathini@linux.vnet.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Fixes: f3b3614a284d ("perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info") Link: http://lkml.kernel.org/r/20171017132900.11043-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-17perf record: Fix documentation for a inexistent option '-l'Taeung Song
'perf record' had a '-l' option that meant "scale counter values" a very long time ago, but it currently belongs to 'perf stat' as '-c'. So remove it. I found this problem in the below case. $ perf record -e cycles -l sleep 3 Error: unknown switch `l Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1507907412-19813-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-14Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Some tooling fixes plus three kernel fixes: a memory leak fix, a statistics fix and a crash fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Fix memory leaks on allocation failures perf/core: Fix cgroup time when scheduling descendants perf/core: Avoid freeing static PMU contexts when PMU is unregistered tools include uapi bpf.h: Sync kernel ABI header with tooling header perf pmu: Unbreak perf record for arm/arm64 with events with explicit PMU perf script: Add missing separator for "-F ip,brstack" (and brstackoff) perf callchain: Compare dsos (as well) for CCKEY_FUNCTION
2017-10-13userfaultfd: selftest: exercise -EEXIST only in background transferAndrea Arcangeli
I was stress testing some backports and with high load, after some time, the latest version of the selftest showed some false positive in connection with the uffdio_copy_retry. This seems to fix it while still exercising -EEXIST in the background transfer once in a while. The fork child will quit after the last UFFDIO_COPY is run, so a repeated UFFDIO_COPY may not return -EEXIST. This change restricts the -EEXIST stress to the background transfer where the memory can't go away from under it. Also updated uffdio_zeropage, so the interface is consistent. Link: http://lkml.kernel.org/r/20171004171541.1495-2-aarcange@redhat.com Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-10-13perf tools: Check wether the eBPF file exists in event parsingJiri Olsa
Adding the check wether the eBPF file exists, to consider it as eBPF input file. This way we can differentiate eBPF events from events that end up with same suffix as eBPF file. Before: $ perf stat -e 'cpu/uops_executed.core/' true bpf: builtin compilation failed: -95, try external compiler WARNING: unable to get correct kernel building directory. Hint: Set correct kbuild directory using 'kbuild-dir' option in [llvm] section of ~/.perfconfig or set it to "" to suppress kbuild detection. event syntax error: 'cpu/uops_executed.core/' \___ Failed to load cpu/uops_executed.c from source: 'version' section incorrect or lost After: $ perf stat -e 'cpu/uops_executed.core/' true Performance counter stats for 'true': 181,533 cpu/uops_executed.core/:u 0.002795447 seconds time elapsed If user makes type in the eBPF file, we prioritize the event syntax and show following warning: $ perf stat -e 'krava.c//' true event syntax error: 'krava.c//' \___ Cannot find PMU `krava.c'. Missing kernel support? Reported-and-Tested-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Changbin Du <changbin.du@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20171013083736.15037-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-13perf hists: Add extra integrity checks to fmt_free()Jiri Olsa
Make sure the struct perf_hpp_fmt is properly unhooked before we free it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Changbin Du <changbin.du@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20171013083736.15037-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-13perf hists: Fix crash in perf_hpp__reset_output_field()Jiri Olsa
Du Changbin reported crash [1] when calling perf_hpp__reset_output_field() after unregistering field via perf_hpp__column_unregister(). This ends up in calling following list_del* sequence on the same format: perf_hpp__column_unregister: list_del(&format->list); perf_hpp__reset_output_field: list_del_init(&fmt->list); where the later list_del_init might touch already freed formats. Fixing this by replacing list_del() with list_del_init() in perf_hpp__column_unregister(). [1] http://marc.info/?l=linux-kernel&m=149059595826019&w=2 Reported-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20171013083736.15037-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-10Merge tag 'linux-kselftest-4.14-rc5-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: - fix for x86: sysret_ss_attrs test build failure preventing the x86 tests from running - fix mqueue: fix regression in silencing test run output * tag 'linux-kselftest-4.14-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: mqueue: fix regression in silencing output from RUN_TESTS selftests: x86: sysret_ss_attrs doesn't build on a PIE build
2017-10-09tools include uapi bpf.h: Sync kernel ABI header with tooling headerArnaldo Carvalho de Melo
Silences the checker: Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h' The 90caccdd8cc0 ("bpf: fix bpf_tail_call() x64 JIT") cset only updated a comment in uapi/bpf.h. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: David Ahern <dsahern@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-rwx2cqbf0x1lwa1krsr6e6hd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-09perf pmu: Unbreak perf record for arm/arm64 with events with explicit PMUMark Rutland
Currently, perf record is broken on arm/arm64 systems when the PMU is specified explicitly as part of the event, e.g. $ ./perf record -e armv8_cortex_a53/cpu_cycles/u true In such cases, perf record fails to open events unless perf_event_paranoid is set to -1, even if the PMU in question supports mode exclusion. Further, even when perf_event_paranoid is toggled, no samples are recorded. This is an unintended side effect of commit: e3ba76deef23064f ("perf tools: Force uncore events to system wide monitoring) ... which assumes that if a PMU has an associated cpu_map, it is an uncore PMU, and forces events for such PMUs to be system-wide. This is not true for arm/arm64 systems, which can have heterogeneous CPUs. To account for this, multiple CPU PMUs are exposed, each with a "cpus" field under sysfs, which the perf tool parses into a cpu_map. ARM PMUs do not have a "cpumask" file, and only have a "cpus" file. For the gory details as to why, see commit: 7e3fcffe95544010 ("perf pmu: Support alternative sysfs cpumask") Given all of this, we can instead identify uncore PMUs by explicitly checking for a "cpumask" file, and restore arm/arm64 PMU support back to a working state. This patch does so, adding a new perf_pmu::is_uncore field, and splitting the existing cpumask parsing so that it can be reused. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Tested-by Will Deacon <will.deacon@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: 4.12+ <stable@vger.kernel.org> Fixes: e3ba76deef23064f ("perf tools: Force uncore events to system wide monitoring) Link: http://lkml.kernel.org/r/1507315102-5942-1-git-send-email-mark.rutland@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-07kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)Masahiro Yamada
I thought commit 8e9b46679923 ("kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)") was a safe conversion, but it changed the behavior. $(abspath ...) / $(realpath ...) does not expand shell special characters, such as '~'. Here is a simple Makefile example: ---------------->8---------------- $(info /bin/pwd: $(shell cd ~/; /bin/pwd)) $(info abspath: $(abspath ~/)) $(info realpath: $(realpath ~/)) all: @: ---------------->8---------------- $ make /bin/pwd: /home/masahiro abspath: /home/masahiro/workspace/~ realpath: This can be a real problem if 'make O=~/foo' is invoked from another Makefile or primitive shell like dash. This commit partially reverts 8e9b46679923. Fixes: 8e9b46679923 ("kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)") Reported-by: Julien Grall <julien.grall@arm.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Julien Grall <julien.grall@arm.com>
2017-10-06perf script: Add missing separator for "-F ip,brstack" (and brstackoff)Mark Santaniello
Prior to commit 55b9b50811ca ("perf script: Support -F brstack,dso and brstacksym,dso"), we were printing a space before the brstack data. It seems that this space was important. Without it, parsing is difficult. Very sorry for the mistake. Notice here how the "ip" and "brstack" run together: $ perf script -F ip,brstack | head -n 1 22e18c40x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 After this diff, sanity is restored: $ perf script -F ip,brstack | head -n 1 22e18c4 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 0x22e195d/0x22e1990/P/-/-/0 0x22e18e9/0x22e1943/P/-/-/0 0x22e1a69/0x22e18c0/P/-/-/0 0x22e19f7/0x22e1a20/P/-/-/0 0x22e1910/0x22e19ee/P/-/-/0 0x22e19e2/0x22e190b/P/-/-/0 0x22e19a1/0x22e19d0/P/-/-/0 Signed-off-by: Mark Santaniello <marksan@fb.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: 4.13+ <stable@vger.kernel.org> Fixes: 55b9b50811ca ("perf script: Support -F brstack,dso and brstacksym,dso") Link: http://lkml.kernel.org/r/20171006080722.3442046-1-marksan@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-05selftests/net: rxtimestamp: Fix an off by oneDan Carpenter
The > should be >= so that we don't write one element beyond the end of the array. Fixes: 16e781224198 ("selftests/net: Add a test to validate behavior of rx timestamps") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-05Merge tag 'perf-urgent-for-mingo-4.14-20171005' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fix from Arnaldo Carvalho de Melo: - Two functions from different binaries can have the same start address. Thus, comparing only the start address in match_chain() leads to inconsistent callchains. Fix this by adding a check for DSOs as well (Ravi Bangoria) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-05selftests: mqueue: fix regression in silencing output from RUN_TESTSShuah Khan
Fix fix regression in silencing output from RUN_TESTS introduced by commit <8230b905a6780c6> selftests: mqueue: Use full path to run tests from Makefile Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-10-05selftests: x86: sysret_ss_attrs doesn't build on a PIE buildShuah Khan
sysret_ss_attrs fails to compile leading x86 test run to fail on systems configured to build using PIE by default. Add -no-pie fix it. Relocation might still fail if relocated above 4G. For now this change fixes the build and runs x86 tests. tools/testing/selftests/x86$ make gcc -m64 -o .../tools/testing/selftests/x86/single_step_syscall_64 -O2 -g -std=gnu99 -pthread -Wall single_step_syscall.c -lrt -ldl gcc -m64 -o .../tools/testing/selftests/x86/sysret_ss_attrs_64 -O2 -g -std=gnu99 -pthread -Wall sysret_ss_attrs.c thunks.S -lrt -ldl /usr/bin/ld: /tmp/ccS6pvIh.o: relocation R_X86_64_32S against `.text' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Nonrepresentable section on output collect2: error: ld returned 1 exit status Makefile:49: recipe for target '.../tools/testing/selftests/x86/sysret_ss_attrs_64' failed make: *** [.../tools/testing/selftests/x86/sysret_ss_attrs_64] Error 1 Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-10-05perf callchain: Compare dsos (as well) for CCKEY_FUNCTIONRavi Bangoria
Two functions from different binaries can have same start address. Thus, comparing only start address in match_chain() leads to inconsistent callchains. Fix this by adding a check for dsos as well. Ex, https://www.spinics.net/lists/linux-perf-users/msg04067.html Reported-by: Alexander Pozdneev <pozdneyev@gmail.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Krister Johansen <kjlx@templeofstupid.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yao Jin <yao.jin@linux.intel.com> Cc: zhangmengting@huawei.com Link: http://lkml.kernel.org/r/20171005091234.5874-1-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-01Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: - Prevent a division by zero in the perf aux buffer handling - Sync kernel headers with perf tool headers - Fix a build failure in the syscalltbl code - Make the debug messages of perf report --call-graph work correctly - Make sure that all required perf files are in the MANIFEST for container builds - Fix the atrr.exclude kernel handling so it respects the perf_event_paranoid and the user permissions - Make perf test on s390x work correctly * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/aux: Only update ->aux_wakeup in non-overwrite mode perf test: Fix vmlinux failure on s390x part 2 perf test: Fix vmlinux failure on s390x perf tools: Fix syscalltbl build failure perf report: Fix debug messages with --call-graph option perf evsel: Fix attr.exclude_kernel setting for default cycles:p tools include: Sync kernel ABI headers with tooling headers perf tools: Get all of tools/{arch,include}/ in the MANIFEST