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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-12-08 22:45:49 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-23 00:24:16 +0100 |
| commit | b4b7914a6a73fc169fd1ce2fcd78a1d83d9528a9 (patch) | |
| tree | f11dec127204fc013b14c97745741b27e7141fb1 /lib | |
| parent | mm: Make mem_obj_dump() vmalloc() dumps include start and length (diff) | |
| download | linux-b4b7914a6a73fc169fd1ce2fcd78a1d83d9528a9.tar.xz linux-b4b7914a6a73fc169fd1ce2fcd78a1d83d9528a9.zip | |
rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback
The debug-object double-free checks in __call_rcu() print out the
RCU callback function, which is usually sufficient to track down the
double free. However, all uses of things like queue_rcu_work() will
have the same RCU callback function (rcu_work_rcufn() in this case),
so a diagnostic message for a double queue_rcu_work() needs more than
just the callback function.
This commit therefore calls mem_dump_obj() to dump out any additional
available information on the double-freed callback.
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <linux-mm@kvack.org>
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions