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[Bug nptl/14417] New: EAGAIN handling in pthread_cond_wait make pulseaudio hang
- From: "dev at blino dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Sun, 29 Jul 2012 14:33:34 +0000
- Subject: [Bug nptl/14417] New: EAGAIN handling in pthread_cond_wait make pulseaudio hang
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=14417
Bug #: 14417
Summary: EAGAIN handling in pthread_cond_wait make pulseaudio
hang
Product: glibc
Version: 2.16
Status: NEW
Severity: normal
Priority: P2
Component: nptl
AssignedTo: unassigned@sourceware.org
ReportedBy: dev@blino.org
CC: drepper.fsp@gmail.com
Classification: Unclassified
Since commit c5a0802a682dba23f92d47f0f99775aebfbe2539 (Handle EAGAIN from
FUTEX_WAIT_REQUEUE_PI), pulseaudio apps often hang.
Example backtrace from gnome-shell and libcanberra:
Thread 1 (Thread 0x7f975cfe8900 (LWP 2367)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:144
#1 0x00007f97558a4aa0 in pa_threaded_mainloop_wait (m=0x21bdf00) at
pulse/thread-mainloop.c:206
#2 0x00007f97460aaa0b in pulse_driver_play (c=0x21b5280, id=<optimized
out>, proplist=0x704c9c0, cb=<optimized out>, userdata=<optimized
out>) at pulse.c:1085
#3 0x00007f975955624e in ca_context_play_full (c=c@entry=0x21b5280,
id=id@entry=1, p=0x704c9c0, cb=cb@entry=0x0,
userdata=userdata@entry=0x0) at common.c:522
#4 0x00007f97595565cf in ca_context_play (c=0x21b5280, id=1) at common.c:462
...
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