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[Bug ports/15760] New: tile: pthread_cond_signal fails with recursive prio_inherit mutex

From: "cmetcalf at tilera dot com" <sourceware-bugzilla at sourceware dot org>
To: glibc-bugs at sourceware dot org
Date: Fri, 19 Jul 2013 18:53:33 +0000
Subject: [Bug ports/15760] New: tile: pthread_cond_signal fails with recursive prio_inherit mutex
Auto-submitted: auto-generated

http://sourceware.org/bugzilla/show_bug.cgi?id=15760

            Bug ID: 15760
           Summary: tile: pthread_cond_signal fails with recursive
                    prio_inherit mutex
           Product: glibc
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ports
          Assignee: unassigned at sourceware dot org
          Reporter: cmetcalf at tilera dot com
                CC: carlos at redhat dot com, roland at gnu dot org

nptl/tst-mutexpi8 (and nptl/tst-mutexpi8-static) will hang.

This sounds similar to the problem reported in bug 14477, fixed via x86
assembly; tile uses the generic C version in nptl/pthread_cond_wait.c.

I also wonder if commit 8313cb997d2da2465c to add FUTEX_*_REQUEUE_PI support
might have played a role.

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