Age | Commit message (Collapse) | Author |
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asconf chunks should be dropped when the asoc doesn't support
asconf feature.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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asoc->peer.asconf_capable is to be set during handshake, and its
value should be initialized to 0. net->sctp.addip_noauth will be
checked in sctp_process_init when processing INIT_ACK on client
and COOKIE_ECHO on server.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to make addip/asconf flag per endpoint,
and its value is initialized by the per netns flag,
net->sctp.addip_enable.
It also replaces the checks of net->sctp.addip_enable
with ep->asconf_enable in some places.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pointer members of an object with static storage duration, if not
explicitly initialized, will be initialized to a NULL pointer. The
net namespace API checks if this pointer is not NULL before using it,
it are safe to remove the function.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Buslov says:
====================
Fix problems with using ns plugin
Recent changes to plugin architecture broke some of the tests when running tdc
without specifying a test group. Fix tests incompatible with ns plugin and
modify tests to not reuse interface name of ns veth interface for dummy
interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Concurrent tests use several commands to update rules in parallel: 'find'
prints names of batch files in tmp directory and pipes result to 'xargs'
which runs instance of tc per batch file in parallel. This breaks when used
with ns plugin that adds 'ip netns exec $NS' prefix to the command, which
causes only first command in pipe to be executed in namespace:
=====> Test e41d: Add 1M flower filters with 10 parallel tc instances
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/bin/mkdir tmp] list [['/bin/mkdir', 'tmp']]
adjust_command: return command [ip netns exec tcut /bin/mkdir tmp]
command "ip netns exec tcut /bin/mkdir tmp"
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev ens1f0 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'ens1f0', 'ingress']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc add dev ens1f0 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev ens1f0 ingress"
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [./tdc_multibatch.py ens1f0 tmp 100000 10 add] list [['./tdc_multibatch.py', 'ens1f0', 'tmp', '100000', '10', 'add']]
adjust_command: return command [ip netns exec tcut ./tdc_multibatch.py ens1f0 tmp 100000 10 add]
command "ip netns exec tcut ./tdc_multibatch.py ens1f0 tmp 100000 10 add"
-----> execute stage
ns/SubPlugin.adjust_command
adjust_command: stage is execute; inserting netns stuff in command [find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b] list [['find', 'tmp/add*', '-print', '|', 'xargs', '-n', '1', '-P', '10', '/sbin/tc', '-b']
]
adjust_command: return command [ip netns exec tcut find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b]
command "ip netns exec tcut find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b"
exit: 123
exit: 0
Cannot find device "ens1f0"
Cannot find device "ens1f0"
Command failed tmp/add_0:1
Command failed tmp/add_1:1
Cannot find device "ens1f0"
Command failed tmp/add_2:1
Cannot find device "ens1f0"
Command failed tmp/add_4:1
Cannot find device "ens1f0"
Command failed tmp/add_3:1
Cannot find device "ens1f0"
Command failed tmp/add_5:1
Cannot find device "ens1f0"
Command failed tmp/add_6:1
Cannot find device "ens1f0"
Command failed tmp/add_8:1
Cannot find device "ens1f0"
Command failed tmp/add_7:1
Cannot find device "ens1f0"
Command failed tmp/add_9:1
Fix the issue by executing whole compound command in namespace by wrapping
it in 'bash -c' invocation.
Fixes: 489ce2f42514 ("tc-testing: Restore original behaviour for namespaces in tdc")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A lot of tests reuse $DEV1 veth name for naming dummy device. This causes
problem when tdc is invoked without specifying a test group and tries to
execute all tests. In this case tdc instantiates ns plugin, which creates
veth pair once before running tests. However, if any of the tests that
reuse $DEV1 run before test that depend on ns plugin, it will delete $DEV1
as a part of teardown section:
=====> Test 3b88: Delete ingress qdisc twice [3770/41080]
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/sbin/ip link add dev v0p1 type dummy || /bin/true] list [['/sbin/ip', 'link', 'add', 'dev', 'v0p1', 'type', 'dummy', '||', '/bin/true']]
adjust_command: return command [ip netns exec tcut /sbin/ip link add dev v0p1 type dummy || /bin/true]
command "ip netns exec tcut /sbin/ip link add dev v0p1 type dummy || /bin/true"
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'v0p1', 'ingress']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress"
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/sbin/tc qdisc del dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'del', 'dev', 'v0p1', 'ingress']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress"
-----> execute stage
ns/SubPlugin.adjust_command
adjust_command: stage is execute; inserting netns stuff in command [/sbin/tc qdisc del dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'del', 'dev', 'v0p1', 'ingress']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress"
-----> verify stage
ns/SubPlugin.adjust_command
adjust_command: stage is verify; inserting netns stuff in command [/sbin/tc qdisc show dev v0p1] list [['/sbin/tc', 'qdisc', 'show', 'dev', 'v0p1']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc show dev v0p1]
command "ip netns exec tcut /sbin/tc qdisc show dev v0p1"
-----> teardown stage
ns/SubPlugin.adjust_command
adjust_command: stage is teardown; inserting netns stuff in command [/sbin/ip link del dev v0p1 type dummy] list [['/sbin/ip', 'link', 'del', 'dev', 'v0p1', 'type', 'dummy']]
adjust_command: return command [ip netns exec tcut /sbin/ip link del dev v0p1 type dummy]
command "ip netns exec tcut /sbin/ip link del dev v0p1 type dummy"
After this ns-dependent tests will fail because dev doesn't exist:
=====> Test 901f: Add fw filter with prio at 32-bit maxixum
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command: stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'v0p1', 'ingress']]
adjust_command: return command [ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress"
-----> prepare stage *** Could not execute: "$TC qdisc add dev $DEV1 ingress"
-----> prepare stage *** Error message: "Cannot find device "v0p1"
"
returncode 1; expected [0]
-----> prepare stage *** Aborting test run.
<_io.BufferedReader name=3> *** stdout ***
<_io.BufferedReader name=5> *** stderr ***
"-----> prepare stage" did not complete successfully
Exception <class '__main__.PluginMgrTestFail'> ('setup', None, '"-----> prepare stage" did not complete successfully') (caught in test_runner, running test 477 901f Add fw filter with prio at 32-bit maxixum stage
setup)
---------------
traceback
File "./tdc.py", line 371, in test_runner
res = run_one_test(pm, args, index, tidx)
File "./tdc.py", line 272, in run_one_test
prepare_env(args, pm, 'setup', "-----> prepare stage", tidx["setup"])
File "./tdc.py", line 247, in prepare_env
'"{}" did not complete successfully'.format(prefix))
---------------
Fix the issue by introducing standalone $DUMMY config variable and
substitute all usage of $DEV1 in tests that don't depend on ns plugin.
Fixes: 489ce2f42514 ("tc-testing: Restore original behaviour for namespaces in tdc")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When processing FLOW_BLOCK_BIND command on indirect block, check that flow
block cb is not busy.
Fixes: 0d4fd02e7199 ("net: flow_offload: add flow_block_cb_is_busy() and use it")
Reported-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The parens used in the while loop would result in error being assigned
the value 1 rather than the intended errno value.
This is required to return -ETXTBSY from follow on break_layout()
changes.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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ATM_NICSTAR_USE_IDT77105
This should be IDT77105, not IDT77015.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix accessing skb after napi_gro_receive which is caused by
commit 47922fcde536 ("r8152: support skb_add_rx_frag").
Fixes: 47922fcde536 ("r8152: support skb_add_rx_frag")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace "driver" with "drivers" in the filepath to net_failover.c
Cc: Sridhar Samudrala <sridhar.samudrala@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit ba5ea614622d ("bridge: simplify ip_mc_check_igmp() and
ipv6_mc_check_mld() calls") replaces direct calls to pskb_may_pull()
in br_ipv6_multicast_mld2_report() with calls to ipv6_mc_may_pull(),
that returns -EINVAL on buffers too short to be valid IPv6 packets,
while maintaining the previous handling of the return code.
This leads to the direct opposite of the intended effect: if the
packet is malformed, -EINVAL evaluates as true, and we'll happily
proceed with the processing.
Return 0 if the packet is too short, in the same way as this was
fixed for IPv4 by commit 083b78a9ed64 ("ip: fix ip_mc_may_pull()
return value").
I don't have a reproducer for this, unlike the one referred to by
the IPv4 commit, but this is clearly broken.
Fixes: ba5ea614622d ("bridge: simplify ip_mc_check_igmp() and ipv6_mc_check_mld() calls")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A couple fixes to the core framework logic that finds clk parents, a
handful of samsung clk driver fixes for audio and display clks, and a
small fix for the Stratix10 SoC driver that was checking the wrong
register for validity"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: Fix potential NULL dereference in clk_fetch_parent_index()
clk: Fix falling back to legacy parent string matching
clk: socfpga: stratix10: fix rate caclulationg for cnt_clks
clk: samsung: exynos542x: Move MSCL subsystem clocks to its sub-CMU
clk: samsung: exynos5800: Move MAU subsystem clocks to MAU sub-CMU
clk: samsung: Change signature of exynos5_subcmus_init() function
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull kernel thread signal handling fix from Eric Biederman:
"I overlooked the fact that kernel threads are created with all signals
set to SIG_IGN, and accidentally caused a regression in cifs and drbd
when replacing force_sig with send_sig.
This is my fix for that regression. I add a new function
allow_kernel_signal which allows kernel threads to receive signals
sent from the kernel, but continues to ignore all signals sent from
userspace. This ensures the user space interface for cifs and drbd
remain the same.
These kernel threads depend on blocking networking calls which block
until something is received or a signal is pending. Making receiving
of signals somewhat necessary for these kernel threads.
Perhaps someday we can cleanup those interfaces and remove
allow_kernel_signal. If not allow_kernel_signal is pretty trivial and
clearly documents what is going on so I don't think we will mind
carrying it"
* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signal: Allow cifs and drbd to receive their terminating signals
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Remove IP MASQUERADING record in MAINTAINERS file,
from Denis Efremov.
2) Counter arguments are swapped in ebtables, from
Todd Seidelmann.
3) Missing netlink attribute validation in flow_offload
extension.
4) Incorrect alignment in xt_nfacct that breaks 32-bits
userspace / 64-bits kernels, from Juliana Rodrigueiro.
5) Missing include guard in nf_conntrack_h323_types.h,
from Masahiro Yamada.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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As Jason Baron explained in commit 790ba4566c1a ("tcp: set SOCK_NOSPACE
under memory pressure"), it is crucial we properly set SOCK_NOSPACE
when needed.
However, Jason patch had a bug, because the 'nonblocking' status
as far as sk_stream_wait_memory() is concerned is governed
by MSG_DONTWAIT flag passed at sendmsg() time :
long timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
So it is very possible that tcp sendmsg() calls sk_stream_wait_memory(),
and that sk_stream_wait_memory() returns -EAGAIN with SOCK_NOSPACE
cleared, if sk->sk_sndtimeo has been set to a small (but not zero)
value.
This patch removes the 'noblock' variable since we must always
set SOCK_NOSPACE if -EAGAIN is returned.
It also renames the do_nonblock label since we might reach this
code path even if we were in blocking mode.
Fixes: 790ba4566c1a ("tcp: set SOCK_NOSPACE under memory pressure")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jason Baron <jbaron@akamai.com>
Reported-by: Vladimir Rutsky <rutsky@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Heiner Kallweit says:
====================
net: phy: realtek: support NBase-T MMD EEE registers on RTL8125
Add missing EEE-related constants, including the new MMD EEE registers
for NBase-T / 802.3bz. Based on that emulate the new 802.3bz MMD EEE
registers for 2.5Gbps EEE on RTL8125.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Emulate the 802.3bz MMD EEE registers for 2.5Gbps EEE on RTL8125.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add EEE-related constants. This includes the new MMD EEE registers for
NBase-T / 802.3bz.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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RCU list block_ing_cb_list is protected by rcu read lock in
flow_block_ing_cmd() and with flow_indr_block_ing_cb_lock mutex in all
functions that use it. However, flow_block_ing_cmd() needs to call blocking
functions while iterating block_ing_cb_list which leads to following
suspicious RCU usage warning:
[ 401.510948] =============================
[ 401.510952] WARNING: suspicious RCU usage
[ 401.510993] 5.3.0-rc3+ #589 Not tainted
[ 401.510996] -----------------------------
[ 401.511001] include/linux/rcupdate.h:265 Illegal context switch in RCU read-side critical section!
[ 401.511004]
other info that might help us debug this:
[ 401.511008]
rcu_scheduler_active = 2, debug_locks = 1
[ 401.511012] 7 locks held by test-ecmp-add-v/7576:
[ 401.511015] #0: 00000000081d71a5 (sb_writers#4){.+.+}, at: vfs_write+0x166/0x1d0
[ 401.511037] #1: 000000002bd338c3 (&of->mutex){+.+.}, at: kernfs_fop_write+0xef/0x1b0
[ 401.511051] #2: 00000000c921c634 (kn->count#317){.+.+}, at: kernfs_fop_write+0xf7/0x1b0
[ 401.511062] #3: 00000000a19cdd56 (&dev->mutex){....}, at: sriov_numvfs_store+0x6b/0x130
[ 401.511079] #4: 000000005425fa52 (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x30/0x140
[ 401.511092] #5: 00000000c5822793 (rtnl_mutex){+.+.}, at: unregister_netdevice_notifier+0x35/0x140
[ 401.511101] #6: 00000000c2f3507e (rcu_read_lock){....}, at: flow_block_ing_cmd+0x5/0x130
[ 401.511115]
stack backtrace:
[ 401.511121] CPU: 21 PID: 7576 Comm: test-ecmp-add-v Not tainted 5.3.0-rc3+ #589
[ 401.511124] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[ 401.511127] Call Trace:
[ 401.511138] dump_stack+0x85/0xc0
[ 401.511146] ___might_sleep+0x100/0x180
[ 401.511154] __mutex_lock+0x5b/0x960
[ 401.511162] ? find_held_lock+0x2b/0x80
[ 401.511173] ? __tcf_get_next_chain+0x1d/0xb0
[ 401.511179] ? mark_held_locks+0x49/0x70
[ 401.511194] ? __tcf_get_next_chain+0x1d/0xb0
[ 401.511198] __tcf_get_next_chain+0x1d/0xb0
[ 401.511251] ? uplink_rep_async_event+0x70/0x70 [mlx5_core]
[ 401.511261] tcf_block_playback_offloads+0x39/0x160
[ 401.511276] tcf_block_setup+0x1b0/0x240
[ 401.511312] ? mlx5e_rep_indr_setup_tc_cb+0xca/0x290 [mlx5_core]
[ 401.511347] ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[ 401.511359] tc_indr_block_get_and_ing_cmd+0x11b/0x1e0
[ 401.511404] ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[ 401.511414] flow_block_ing_cmd+0x7e/0x130
[ 401.511453] ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[ 401.511462] __flow_indr_block_cb_unregister+0x7f/0xf0
[ 401.511502] mlx5e_nic_rep_netdevice_event+0x75/0xb0 [mlx5_core]
[ 401.511513] unregister_netdevice_notifier+0xe9/0x140
[ 401.511554] mlx5e_cleanup_rep_tx+0x6f/0xe0 [mlx5_core]
[ 401.511597] mlx5e_detach_netdev+0x4b/0x60 [mlx5_core]
[ 401.511637] mlx5e_vport_rep_unload+0x71/0xc0 [mlx5_core]
[ 401.511679] esw_offloads_disable+0x5b/0x90 [mlx5_core]
[ 401.511724] mlx5_eswitch_disable.cold+0xdf/0x176 [mlx5_core]
[ 401.511759] mlx5_device_disable_sriov+0xab/0xb0 [mlx5_core]
[ 401.511794] mlx5_core_sriov_configure+0xaf/0xd0 [mlx5_core]
[ 401.511805] sriov_numvfs_store+0xf8/0x130
[ 401.511817] kernfs_fop_write+0x122/0x1b0
[ 401.511826] vfs_write+0xdb/0x1d0
[ 401.511835] ksys_write+0x65/0xe0
[ 401.511847] do_syscall_64+0x5c/0xb0
[ 401.511857] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 401.511862] RIP: 0033:0x7fad892d30f8
[ 401.511868] Code: 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 25 96 0d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 60 c3 0f 1f 80 00 00 00 00 48 83
ec 28 48 89
[ 401.511871] RSP: 002b:00007ffca2a9fad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 401.511875] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fad892d30f8
[ 401.511878] RDX: 0000000000000002 RSI: 000055afeb072a90 RDI: 0000000000000001
[ 401.511881] RBP: 000055afeb072a90 R08: 00000000ffffffff R09: 000000000000000a
[ 401.511884] R10: 000055afeb058710 R11: 0000000000000246 R12: 0000000000000002
[ 401.511887] R13: 00007fad893a8780 R14: 0000000000000002 R15: 00007fad893a3740
To fix the described incorrect RCU usage, convert block_ing_cb_list from
RCU list to regular list and protect it with flow_indr_block_ing_cb_lock
mutex in flow_block_ing_cmd().
Fixes: 1150ab0f1b33 ("flow_offload: support get multi-subsystem block")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If alloc_descs() fails before irq_sysfs_init() has run, free_desc() in the
cleanup path will call kobject_del() even though the kobject has not been
added with kobject_add().
Fix this by making the call to kobject_del() conditional on whether
irq_sysfs_init() has run.
This problem surfaced because commit aa30f47cf666 ("kobject: Add support
for default attribute groups to kobj_type") makes kobject_del() stricter
about pairing with kobject_add(). If the pairing is incorrrect, a WARNING
and backtrace occur in sysfs_remove_group() because there is no parent.
[ tglx: Add a comment to the code and make it work with CONFIG_SYSFS=n ]
Fixes: ecb3f394c5db ("genirq: Expose interrupt information through sysfs")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1564703564-4116-1-git-send-email-mikelley@microsoft.com
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Merge conflict of mlx5 resolved using instructions in merge
commit 9566e650bf7fdf58384bb06df634f7531ca3a97e.
Signed-off-by: David S. Miller <davem@davemloft.net>
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There have been reports of RDRAND issues after resuming from suspend on
some AMD family 15h and family 16h systems. This issue stems from a BIOS
not performing the proper steps during resume to ensure RDRAND continues
to function properly.
RDRAND support is indicated by CPUID Fn00000001_ECX[30]. This bit can be
reset by clearing MSR C001_1004[62]. Any software that checks for RDRAND
support using CPUID, including the kernel, will believe that RDRAND is
not supported.
Update the CPU initialization to clear the RDRAND CPUID bit for any family
15h and 16h processor that supports RDRAND. If it is known that the family
15h or family 16h system does not have an RDRAND resume issue or that the
system will not be placed in suspend, the "rdrand=force" kernel parameter
can be used to stop the clearing of the RDRAND CPUID bit.
Additionally, update the suspend and resume path to save and restore the
MSR C001_1004 value to ensure that the RDRAND CPUID setting remains in
place after resuming from suspend.
Note, that clearing the RDRAND CPUID bit does not prevent a processor
that normally supports the RDRAND instruction from executing it. So any
code that determined the support based on family and model won't #UD.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Cc: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "x86@kernel.org" <x86@kernel.org>
Link: https://lkml.kernel.org/r/7543af91666f491547bd86cebb1e17c66824ab9f.1566229943.git.thomas.lendacky@amd.com
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"enabled" parameter historically referred to the device input or
output, not to the led indicator. After the changes added with the led
helper functions the mic mute led logic refers to the led and not to
the mic input which caused led indicator to be negated.
Fixing logic in cxt_update_gpio_led and updated
cxt_fixup_gpio_mute_hook
Also updated debug messages to ease further debugging if necessary.
Fixes: 184e302b46c9 ("ALSA: hda/conexant - Use the mic-mute LED helper")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jeronimo Borque <jeronimo@borque.com.ar>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Pull networking fixes from David Miller:
1) Fix jmp to 1st instruction in x64 JIT, from Alexei Starovoitov.
2) Severl kTLS fixes in mlx5 driver, from Tariq Toukan.
3) Fix severe performance regression due to lack of SKB coalescing of
fragments during local delivery, from Guillaume Nault.
4) Error path memory leak in sch_taprio, from Ivan Khoronzhuk.
5) Fix batched events in skbedit packet action, from Roman Mashak.
6) Propagate VLAN TX offload to hw_enc_features in bond and team
drivers, from Yue Haibing.
7) RXRPC local endpoint refcounting fix and read after free in
rxrpc_queue_local(), from David Howells.
8) Fix endian bug in ibmveth multicast list handling, from Thomas
Falcon.
9) Oops, make nlmsg_parse() wrap around the correct function,
__nlmsg_parse not __nla_parse(). Fix from David Ahern.
10) Memleak in sctp_scend_reset_streams(), fro Zheng Bin.
11) Fix memory leak in cxgb4, from Wenwen Wang.
12) Yet another race in AF_PACKET, from Eric Dumazet.
13) Fix false detection of retransmit failures in tipc, from Tuong
Lien.
14) Use after free in ravb_tstamp_skb, from Tho Vu.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
ravb: Fix use-after-free ravb_tstamp_skb
netfilter: nf_tables: map basechain priority to hardware priority
net: sched: use major priority number as hardware priority
wimax/i2400m: fix a memory leak bug
net: cavium: fix driver name
ibmvnic: Unmap DMA address of TX descriptor buffers after use
bnxt_en: Fix to include flow direction in L2 key
bnxt_en: Use correct src_fid to determine direction of the flow
bnxt_en: Suppress HWRM errors for HWRM_NVM_GET_VARIABLE command
bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
bnxt_en: Improve RX doorbell sequence.
bnxt_en: Fix VNIC clearing logic for 57500 chips.
net: kalmia: fix memory leaks
cx82310_eth: fix a memory leak bug
bnx2x: Fix VF's VLAN reconfiguration in reload.
Bluetooth: Add debug setting for changing minimum encryption key size
tipc: fix false detection of retransmit failures
lan78xx: Fix memory leaks
MAINTAINERS: r8169: Update path to the driver
MAINTAINERS: PHY LIBRARY: Update files in the record
...
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The maximum key description size is 4095. Commit f771fde82051 ("keys:
Simplify key description management") inadvertantly reduced that to 255
and made sizes between 256 and 4095 work weirdly, and any size whereby
size & 255 == 0 would cause an assertion in __key_link_begin() at the
following line:
BUG_ON(index_key->desc_len == 0);
This can be fixed by simply increasing the size of desc_len in struct
keyring_index_key to a u16.
Note the argument length test in keyutils only checked empty
descriptions and descriptions with a size around the limit (ie. 4095)
and not for all the values in between, so it missed this. This has been
addressed and
https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git/commit/?id=066bf56807c26cd3045a25f355b34c1d8a20a5aa
now exhaustively tests all possible lengths of type, description and
payload and then some.
The assertion failure looks something like:
kernel BUG at security/keys/keyring.c:1245!
...
RIP: 0010:__key_link_begin+0x88/0xa0
...
Call Trace:
key_create_or_update+0x211/0x4b0
__x64_sys_add_key+0x101/0x200
do_syscall_64+0x5b/0x1e0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
It can be triggered by:
keyctl add user "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" a @s
Fixes: f771fde82051 ("keys: Simplify key description management")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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BIOS on Samsung 500C Chromebook reports very rudimentary E820 table that
consists of 2 entries:
BIOS-e820: [mem 0x0000000000000000-0x0000000000000fff] usable
BIOS-e820: [mem 0x00000000fffff000-0x00000000ffffffff] reserved
It breaks logic in find_trampoline_placement(): bios_start lands on the
end of the first 4k page and trampoline start gets placed below 0.
Detect underflow and don't touch bios_start for such cases. It makes
kernel ignore E820 table on machines that doesn't have two usable pages
below BIOS_START_MAX.
Fixes: 1b3a62643660 ("x86/boot/compressed/64: Validate trampoline placement against E820")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203463
Link: https://lkml.kernel.org/r/20190813131654.24378-1-kirill.shutemov@linux.intel.com
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If the writeback error is fatal, we need to remove the tracking structures
(i.e. the nfs_page) from the inode.
Fixes: 6fbda89b257f ("NFS: Replace custom error reporting mechanism...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Initialise the result count to 0 rather than initialising it to the
argument count. The reason is that we want to ensure we record the
I/O stats correctly in the case where an error is returned (for
instance in the layoutstats).
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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If the attempt to resend the I/O results in no bytes being read/written,
we must ensure that we report the error.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Fixes: 0a00b77b331a ("nfs: mirroring support for direct io")
Cc: stable@vger.kernel.org # v3.20+
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If the attempt to resend the pages fails, we need to ensure that we
clean up those pages that were not transmitted.
Fixes: d600ad1f2bdb ("NFS41: pop some layoutget errors to application")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.5+
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If the file turns out to be of the wrong type after opening, we want
to revalidate the path and retry, so return EOPENSTALE rather than
ESTALE.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Currently, we are translating RPC level errors such as timeouts,
as well as interrupts etc into EOPENSTALE, which forces a single
replay of the open attempt. What we actually want to do is
force the replay only in the cases where the returned error
indicates that the file may have changed on the server.
So the fix is to spell out the exact set of errors where we want
to return EOPENSTALE.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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If we've been given the attributes of the mounted-on-file, then do not
use those to check or update the attributes on the application-visible
inode.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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When calling request_threaded_irq() with a CP2112, the function
cp2112_gpio_irq_startup() is called in a IRQ context.
Therefore we can not sleep, and we can not call
cp2112_gpio_direction_input() there.
Move the call to cp2112_gpio_direction_input() earlier to have a working
driver.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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EHL is a new platform using ishtp solution, add its device id
to support list.
Signed-off-by: Even Xu <even.xu@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Distance values reported by 2nd-gen Intuos tablets are on an inverted
scale (0 == far, 63 == near). We need to change them over to a normal
scale before reporting to userspace or else userspace drivers and
applications can get confused.
Ref: https://github.com/linuxwacom/input-wacom/issues/98
Fixes: eda01dab53 ("HID: wacom: Add four new Intuos devices")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add a header include guard just in case.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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My recent to change to only use force_sig for a synchronous events
wound up breaking signal reception cifs and drbd. I had overlooked
the fact that by default kthreads start out with all signals set to
SIG_IGN. So a change I thought was safe turned out to have made it
impossible for those kernel thread to catch their signals.
Reverting the work on force_sig is a bad idea because what the code
was doing was very much a misuse of force_sig. As the way force_sig
ultimately allowed the signal to happen was to change the signal
handler to SIG_DFL. Which after the first signal will allow userspace
to send signals to these kernel threads. At least for
wake_ack_receiver in drbd that does not appear actively wrong.
So correct this problem by adding allow_kernel_signal that will allow
signals whose siginfo reports they were sent by the kernel through,
but will not allow userspace generated signals, and update cifs and
drbd to call allow_kernel_signal in an appropriate place so that their
thread can receive this signal.
Fixing things this way ensures that userspace won't be able to send
signals and cause problems, that it is clear which signals the
threads are expecting to receive, and it guarantees that nothing
else in the system will be affected.
This change was partly inspired by similar cifs and drbd patches that
added allow_signal.
Reported-by: ronnie sahlberg <ronniesahlberg@gmail.com>
Reported-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Tested-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Cc: Steve French <smfrench@gmail.com>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Fixes: 247bc9470b1e ("cifs: fix rmmod regression in cifs.ko caused by force_sig changes")
Fixes: 72abe3bcf091 ("signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig")
Fixes: fee109901f39 ("signal/drbd: Use send_sig not force_sig")
Fixes: 3cf5d076fb4d ("signal: Remove task parameter from force_sig")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Some newer machines do not advertise legacy timers. The kernel can handle
that situation if the TSC and the CPU frequency are enumerated by CPUID or
MSRs and the CPU supports TSC deadline timer. If the CPU does not support
TSC deadline timer the local APIC timer frequency has to be known as well.
Some Ryzens machines do not advertize legacy timers, but there is no
reliable way to determine the bus frequency which feeds the local APIC
timer when the machine allows overclocking of that frequency.
As there is no legacy timer the local APIC timer calibration crashes due to
a NULL pointer dereference when accessing the not installed global clock
event device.
Switch the calibration loop to a non interrupt based one, which polls
either TSC (if frequency is known) or jiffies. The latter requires a global
clockevent. As the machines which do not have a global clockevent installed
have a known TSC frequency this is a non issue. For older machines where
TSC frequency is not known, there is no known case where the legacy timers
do not exist as that would have been reported long ago.
Reported-by: Daniel Drake <drake@endlessm.com>
Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Daniel Drake <drake@endlessm.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1908091443030.21433@nanos.tec.linutronix.de
Link: http://bugzilla.opensuse.org/show_bug.cgi?id=1142926#c12
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lockdep reports the following deadlock scenario:
WARNING: possible circular locking dependency detected
kworker/1:1/48 is trying to acquire lock:
000000008d7a62b2 (text_mutex){+.+.}, at: kprobe_optimizer+0x163/0x290
but task is already holding lock:
00000000850b5e2d (module_mutex){+.+.}, at: kprobe_optimizer+0x31/0x290
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (module_mutex){+.+.}:
__mutex_lock+0xac/0x9f0
mutex_lock_nested+0x1b/0x20
set_all_modules_text_rw+0x22/0x90
ftrace_arch_code_modify_prepare+0x1c/0x20
ftrace_run_update_code+0xe/0x30
ftrace_startup_enable+0x2e/0x50
ftrace_startup+0xa7/0x100
register_ftrace_function+0x27/0x70
arm_kprobe+0xb3/0x130
enable_kprobe+0x83/0xa0
enable_trace_kprobe.part.0+0x2e/0x80
kprobe_register+0x6f/0xc0
perf_trace_event_init+0x16b/0x270
perf_kprobe_init+0xa7/0xe0
perf_kprobe_event_init+0x3e/0x70
perf_try_init_event+0x4a/0x140
perf_event_alloc+0x93a/0xde0
__do_sys_perf_event_open+0x19f/0xf30
__x64_sys_perf_event_open+0x20/0x30
do_syscall_64+0x65/0x1d0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 (text_mutex){+.+.}:
__lock_acquire+0xfcb/0x1b60
lock_acquire+0xca/0x1d0
__mutex_lock+0xac/0x9f0
mutex_lock_nested+0x1b/0x20
kprobe_optimizer+0x163/0x290
process_one_work+0x22b/0x560
worker_thread+0x50/0x3c0
kthread+0x112/0x150
ret_from_fork+0x3a/0x50
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(module_mutex);
lock(text_mutex);
lock(module_mutex);
lock(text_mutex);
*** DEADLOCK ***
As a reproducer I've been using bcc's funccount.py
(https://github.com/iovisor/bcc/blob/master/tools/funccount.py),
for example:
# ./funccount.py '*interrupt*'
That immediately triggers the lockdep splat.
Fix by acquiring text_mutex before module_mutex in kprobe_optimizer().
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: d5b844a2cf50 ("ftrace/x86: Remove possible deadlock between register_kprobe() and ftrace_run_update_code()")
Link: http://lkml.kernel.org/r/20190812184302.GA7010@xps-13
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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No functional change.
Signed-off-by: Su Yanjun <suyj.fnst@cn.fujitsu.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/1565945001-4413-1-git-send-email-suyj.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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If a task is PI-blocked (blocking on sleeping spinlock) then we don't want to
schedule a new kworker if we schedule out due to lock contention because !RT
does not do that as well. A spinning spinlock disables preemption and a worker
does not schedule out on lock contention (but spin).
On RT the RW-semaphore implementation uses an rtmutex so
tsk_is_pi_blocked() will return true if a task blocks on it. In this case we
will now start a new worker which may deadlock if one worker is waiting on
progress from another worker. Since a RW-semaphore starts a new worker on !RT,
we should do the same on RT.
XFS is able to trigger this deadlock.
Allow to schedule new worker if the current worker is PI-blocked.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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/20190816160626.12742-1-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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When running a 64-bit kernel with a 32-bit iptables binary, the size of
the xt_nfacct_match_info struct diverges.
kernel: sizeof(struct xt_nfacct_match_info) : 40
iptables: sizeof(struct xt_nfacct_match_info)) : 36
Trying to append nfacct related rules results in an unhelpful message.
Although it is suggested to look for more information in dmesg, nothing
can be found there.
# iptables -A <chain> -m nfacct --nfacct-name <acct-object>
iptables: Invalid argument. Run `dmesg' for more information.
This patch fixes the memory misalignment by enforcing 8-byte alignment
within the struct's first revision. This solution is often used in many
other uapi netfilter headers.
Signed-off-by: Juliana Rodrigueiro <juliana.rodrigueiro@intra2net.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The netlink attribute policy for NFTA_FLOW_TABLE_NAME is missing.
Fixes: a3c90f7a2323 ("netfilter: nf_tables: flow offload expression")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The ordering of arguments to the x_tables ADD_COUNTER macro
appears to be wrong in ebtables (cf. ip_tables.c, ip6_tables.c,
and arp_tables.c).
This causes data corruption in the ebtables userspace tools
because they get incorrect packet & byte counts from the kernel.
Fixes: d72133e628803 ("netfilter: ebtables: use ADD_COUNTER macro")
Signed-off-by: Todd Seidelmann <tseidelmann@linode.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This entry is in MAINTAINERS for historical purpose.
It doesn't match current sources since the commit
adf82accc5f5 ("netfilter: x_tables: merge ip and
ipv6 masquerade modules") moved the module.
The net/netfilter/xt_MASQUERADE.c module is already under
the netfilter section. Thus, there is no purpose to keep this
separate entry in MAINTAINERS.
Cc: Florian Westphal <fw@strlen.de>
Cc: Juanjo Ciarlante <jjciarla@raiz.uncu.edu.ar>
Cc: netfilter-devel@vger.kernel.org
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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While trawling through the dedupe file comparison code trying to fix
page deadlocking problems, Dave Chinner noticed that the reflink code
only takes shared IOLOCK/MMAPLOCKs on the source file. Because
page_mkwrite and directio writes do not take the EXCL versions of those
locks, this means that reflink can race with writer processes.
For pure remapping this can lead to undefined behavior and file
corruption; for dedupe this means that we cannot be sure that the
contents are identical when we decide to go ahead with the remapping.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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Currently the driver does not handle EPROBE_DEFER for the confd gpio.
Use devm_gpiod_get_optional() instead of devm_gpiod_get() and return
error codes from altera_ps_probe().
Fixes: 5692fae0742d ("fpga manager: Add altera-ps-spi driver for Altera FPGAs")
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
|