diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-07-25 04:47:40 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 13:53:39 -0400 |
| commit | 24d5288f06ed8b3a368eba967d587cdb012dfdf7 (patch) | |
| tree | 77844e275f2e3bcdc64427e64633e82f0207476d /Documentation/preempt-locking.txt | |
| parent | 15b9f360c0316c06d37c09b02d85565edbaf9dd3 (diff) | |
coredump: elf_core_dump: skip kernel threads
linux_binfmt->core_dump() runs before the process does exit_aio(), this
means that we can hit the kernel thread which shares the same ->mm.
Afaics, nothing really bad can happen, but perhaps it makes sense to fix
this minor bug.
It is sad we have to iterate over all threads in system and use
GFP_ATOMIC. Hopefully we can kill theses ugly do_each_thread()s, but this
needs some nontrivial changes in mm_struct and do_coredump.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/preempt-locking.txt')
0 files changed, 0 insertions, 0 deletions