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* [Bug nptl/3482] New: pthread_cond_signal does not respect thread priority
@ 2006-11-08 9:31 loic-dev at gmx dot net
2006-11-08 9:41 ` [Bug nptl/3482] " loic-dev at gmx dot net
2006-11-08 16:06 ` drepper at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: loic-dev at gmx dot net @ 2006-11-08 9:31 UTC (permalink / raw)
To: glibc-bugs
If two threads with different priorities are waiting on the same condition
variable, a pthread_cond_signal() on that condvar shall wake the thread
waiting the longest on the condvar, not the one with the highest priority. As
of my understanding, this departs from SUS.
--
Summary: pthread_cond_signal does not respect thread priority
Product: glibc
Version: 2.4
Status: NEW
Severity: normal
Priority: P2
Component: nptl
AssignedTo: drepper at redhat dot com
ReportedBy: loic-dev at gmx dot net
CC: glibc-bugs at sources dot redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=3482
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* [Bug nptl/3482] pthread_cond_signal does not respect thread priority
2006-11-08 9:31 [Bug nptl/3482] New: pthread_cond_signal does not respect thread priority loic-dev at gmx dot net
@ 2006-11-08 9:41 ` loic-dev at gmx dot net
2006-11-08 16:06 ` drepper at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: loic-dev at gmx dot net @ 2006-11-08 9:41 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From loic-dev at gmx dot net 2006-11-08 09:41 -------
Created an attachment (id=1407)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1407&action=view)
test case for the problem mentioned
output:
Thread with Prio 1 is waiting on CV
Thread with Prio 2 is waiting on CV
Thread with prio 1 has been signaled
Thread with Prio 1 is waiting on CV
Thread with prio 2 has been signaled
Thread with Prio 2 is waiting on CV
Thread with prio 1 has been signaled
Thread with Prio 1 is waiting on CV
Thread with prio 2 has been signaled
Thread with Prio 2 is waiting on CV
--
http://sourceware.org/bugzilla/show_bug.cgi?id=3482
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* [Bug nptl/3482] pthread_cond_signal does not respect thread priority
2006-11-08 9:31 [Bug nptl/3482] New: pthread_cond_signal does not respect thread priority loic-dev at gmx dot net
2006-11-08 9:41 ` [Bug nptl/3482] " loic-dev at gmx dot net
@ 2006-11-08 16:06 ` drepper at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: drepper at redhat dot com @ 2006-11-08 16:06 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2006-11-08 16:05 -------
This is a kernel problem.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
http://sourceware.org/bugzilla/show_bug.cgi?id=3482
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end of thread, other threads:[~2006-11-08 16:06 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2006-11-08 9:31 [Bug nptl/3482] New: pthread_cond_signal does not respect thread priority loic-dev at gmx dot net
2006-11-08 9:41 ` [Bug nptl/3482] " loic-dev at gmx dot net
2006-11-08 16:06 ` drepper at redhat dot com
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