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Date: Tue, 29 Sep 2020 09:31:12 -0700
From: Leonid Shamis <>
Subject: Robust mutex returning ESRCH

We had a bug in our code where a dying process released shared memory
(munmap) prior to exit. The process held ownership of a robust mutex within
the shared memory, and because the address was unmapped, the robust_list
wasn't able to set the appropriate flags.

The next attempt to lock the mutex, in another process, returned ESRCH.

Should ESRCH be caughtand converted to either a recoverable EOWNERDEAD or

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