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author | HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com> | 2015-06-30 14:57:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-30 19:44:57 -0700 |
commit | 5375b708f2547f70cd2bee2fd8663ab7035f9551 (patch) | |
tree | 4dbcb4086adbf7de22f11a8887fda9fb25b3db87 /kernel/gcov | |
parent | f45d85ff1f3f13d5b67fecb291edc6a771db0c53 (diff) | |
download | linux-5375b708f2547f70cd2bee2fd8663ab7035f9551.tar.bz2 |
kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path
Commit f06e5153f4ae2e ("kernel/panic.c: add "crash_kexec_post_notifiers"
option for kdump after panic_notifers") introduced
"crash_kexec_post_notifiers" kernel boot option, which toggles wheather
panic() calls crash_kexec() before panic_notifiers and dump kmsg or after.
The problem is that the commit overlooks panic_on_oops kernel boot option.
If it is enabled, crash_kexec() is called directly without going through
panic() in oops path.
To fix this issue, this patch adds a check to "crash_kexec_post_notifiers"
in the condition of kexec_should_crash().
Also, put a comment in kexec_should_crash() to explain not obvious things
on this patch.
Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Acked-by: Baoquan He <bhe@redhat.com>
Tested-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/gcov')
0 files changed, 0 insertions, 0 deletions