diff options
| author | Steven Rostedt (Red Hat) <[email protected]> | 2013-05-23 14:21:36 -0400 |
|---|---|---|
| committer | Steven Rostedt <[email protected]> | 2013-05-28 10:53:20 -0400 |
| commit | 6721cb60022629ae76365551f05d9658b8d14c55 (patch) | |
| tree | 00d16ebb628161995b02939460d3f7b8d0f5ac53 /lib/cpu-notifier-error-inject.c | |
| parent | ca1643186d3dce6171d8f171e516b02496360a9e (diff) | |
ring-buffer: Do not poll non allocated cpu buffers
The tracing infrastructure sets up for possible CPUs, but it uses
the ring buffer polling, it is possible to call the ring buffer
polling code with a CPU that hasn't been allocated. This will cause
a kernel oops when it access a ring buffer cpu buffer that is part
of the possible cpus but hasn't been allocated yet as the CPU has never
been online.
Reported-by: Mauro Carvalho Chehab <[email protected]>
Tested-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
Diffstat (limited to 'lib/cpu-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions