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[Bug nptl/21422] Deadlock in 2.25 pthread_cond_broadcast after process abort
- From: "michael.krasnyk at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 25 Apr 2017 16:05:55 +0000
- Subject: [Bug nptl/21422] Deadlock in 2.25 pthread_cond_broadcast after process abort
- Auto-submitted: auto-generated
- References: <bug-21422-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21422
--- Comment #9 from Michael Krasnyk <michael.krasnyk at gmail dot com> ---
Thanks for the discussion!
The original issue is https://github.com/Project-OSRM/osrm-backend/issues/3911
Unfortunately shared condition variables may indeed end up in some inconsistent
state and pthread_cancel will not work due to possible OOM SIGKILL signals.
Mainly the report is about clarification if it is an undefined behavior change
from 2.24 to 2.25 or a regression.
Without robust conditional variables it will not be possible to make correct
IPC signaling.
Regards,
Michael
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