diff options
| author | Jim Cromie <jim.cromie@gmail.com> | 2023-05-25 11:43:56 -0600 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-09 16:25:40 -0700 |
| commit | dcb8cbb58a218c99aab0dbf3f76cf06a04d44f37 (patch) | |
| tree | ed369bed995258a6e9344ced6a4c5ca4e961cc4e /samples | |
| parent | d7f1afd0e3ac4c5c703b67d6003b62f760e95ba8 (diff) | |
kmemleak-test: drop __init to get better backtrace
Drop the __init on kmemleak_test_init(). With it, the storage is
reclaimed, but then the symbol isn't available for "%pS" rendering,
and the backtrace gets a bare pointer where the actual leak happened.
unreferenced object 0xffff88800a2b0800 (size 1024):
comm "modprobe", pid 413, jiffies 4294953430
hex dump (first 32 bytes):
73 02 00 00 75 01 00 68 02 00 00 01 00 00 00 04 s...u..h........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000fabad728>] kmalloc_trace+0x26/0x90
[<00000000ef738764>] 0xffffffffc02350a2
[<00000000004e5795>] do_one_initcall+0x43/0x210
[<00000000d768905e>] do_init_module+0x4a/0x210
[<0000000087135ab5>] __do_sys_finit_module+0x93/0xf0
[<000000004fcb1fa2>] do_syscall_64+0x34/0x80
[<00000000c73c8d9d>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
with __init gone, that trace entry renders like:
[<00000000ef738764>] kmemleak_test_init+<offset>/<size>
Link: https://lkml.kernel.org/r/20230525174356.69711-1-jim.cromie@gmail.com
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/kmemleak/kmemleak-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/kmemleak/kmemleak-test.c b/samples/kmemleak/kmemleak-test.c index 7b476eb8285f..6ced5ddd99d4 100644 --- a/samples/kmemleak/kmemleak-test.c +++ b/samples/kmemleak/kmemleak-test.c @@ -32,7 +32,7 @@ static DEFINE_PER_CPU(void *, kmemleak_test_pointer); * Some very simple testing. This function needs to be extended for * proper testing. */ -static int __init kmemleak_test_init(void) +static int kmemleak_test_init(void) { struct test_node *elem; int i; |