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| author | Ingo Molnar <mingo@elte.hu> | 2008-05-14 19:11:46 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-15 21:19:30 +0400 |
| commit | 487ad7efbf6b0ec338cdfc2a7b0fbeb53f17a94c (patch) | |
| tree | e2bc37cc97680403bf664a5944b10cdd907b9f10 /Documentation | |
| parent | 8568dae21e186fbb111bbe6583033a33fe26f83d (diff) | |
| download | linux-487ad7efbf6b0ec338cdfc2a7b0fbeb53f17a94c.tar.xz | |
tty: fix BKL related leak and crash
Enabling the BKL to be lockdep tracked uncovered the following
upstream kernel bug in the tty code, which caused a BKL
reference leak:
================================================
[ BUG: lock held when returning to user space! ]
------------------------------------------------
dmesg/3121 is leaving the kernel with locks still held!
1 lock held by dmesg/3121:
#0: (kernel_mutex){--..}, at: [<c02f34d9>] opost+0x24/0x194
this might explain some of the atomicity warnings and crashes
that -tip tree testing has been experiencing since the BKL
was converted back to a spinlock.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions