[Bug 604753] Re: [eglibc] process shared mutex's fail on armel v7 (thumb)

Jani Monoses jani at ubuntu.com
Tue Jan 24 14:55:29 UTC 2012


Do the builders have newer kernels now? If so the testsuite in apr may
now pass and the workaround could be dropped.

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Title:
  [eglibc] process shared mutex's fail on armel v7 (thumb)

Status in Linaro Toolchain Miscellanies:
  Fix Released
Status in “apr” package in Ubuntu:
  Triaged
Status in “eglibc” package in Ubuntu:
  Fix Released

Bug description:
  As per #599874, "process shared" mutexes (that is a mutex in shared
  memory and with the Process Shared attribute set) deadlock and fail.
  This was found in "apr" through the package's self-test, and we
  created a patch to disable their use on arm v7/thumb.  However, the
  real solution is most likely in glibc/pthread and perhaps it's use of
  atomics for locking in process shared memory.

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