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authorIngo Molnar <mingo@elte.hu>2006-10-11 01:22:08 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-11 11:14:24 -0700
commit256a6b41365e17cebe5c2fc91ddff716c9aa055a (patch)
treec491008b3e2fefed6a42ac7f824d191e023fb11f /arch/i386
parent5fcce7432a731e67f1cd3ef1e71dca9ea84dedb1 (diff)
[PATCH] lockdep: fix printk recursion logic
Bug reported and fixed by Tilman Schmidt <tilman@imap.cc>: if lockdep is enabled then log messages make it to /var/log/messages belatedly. The reason is a missed wakeup of klogd. Initially there was only a lockdep_internal() protection against lockdep recursion within vprintk() - it grew the 'outer' lockdep_off()/on() protection only later on. But that lockdep_off() made the release_console_sem() within vprintk() always happen under the lockdep_internal() condition, causing the bug. The right solution to remove the inner protection against recursion here - the outer one is enough. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386')
0 files changed, 0 insertions, 0 deletions