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rtmutex: Fix the deadlock detector for real

Thomas Gleixner lkml 1 version In review

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  1. v1 Latest2 patches 6 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2rtmutex: Fix deadlock detector for realkernel/locking/rtmutex.c+17 -50 replies
2/2rtmutex: Avoid pointless requeueing in the deadlock detection chain walkkernel/locking/rtmutex.c+29 -186 replies

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Cover letter [patch 0/2] rtmutex: Fix the deadlock detector for real

Lai pointed out that the chain walk is incomplete aside of not detecting even the simple AA deadlock.

The following series contains:

1) The fix for this, which replaces the hot fix I send out earlier

2) An optimization to avoid pointless de/enqueue operations in the deadlock chain walk

Thanks,

tglx