On Wed, May 14, 2014 at 05:17:35PM -0400, Carlos O'Donell wrote: > > No, its perfectly fine to have a lock sequence abort with -EDEADLK. > > Userspace should release its locks and re-attempt. > > I agree. If I can prove that it's actually a deadlock, and > that unlock/relock will work to fix it, then we can arrange for glibc > to return EDEADLK.
The only reason the kernel would return EDEADLK is because its walked the lock graph and determined its well, a deadlock.
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