Bug#649641: Bug #649641: pulseaudio mutex issue on Alpha architecture
On Sun, Feb 12, 2012 at 01:46:27PM +1300, Michael Cree wrote: Other hints that this is a kernel problem introduced somewhere between 2.6.38 and 2.6.39 is that the eglibc test suite passes on 2.6.38 and older kernels, but fails on 2.6.39 and newer kernels with failures in mutex related tests. Maybe this bug should be reassigned to the linux kernel? Does this still occur with recent kernels and pulseaudio versions? -- The truth is what is; what should be is a dirty lie. -- Lenny Bruce -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#649641: Bug #649641: pulseaudio mutex issue on Alpha architecture
close 649641 thanks, On Mon, 2012-11-05 at 09:02 +1300, Michael Cree wrote: On 5/11/2012, at 5:59 AM, Sjoerd Simons wrote: It is now fixed in the kernel; commit 62aca403657fe upstream. It was a problem with futexes. Great thanks, closing this bug :) -- Sjoerd Simons sjo...@luon.net -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#649641: Bug #649641: pulseaudio mutex issue on Alpha architecture
On 5/11/2012, at 5:59 AM, Sjoerd Simons wrote: On Sun, Feb 12, 2012 at 01:46:27PM +1300, Michael Cree wrote: Other hints that this is a kernel problem introduced somewhere between 2.6.38 and 2.6.39 is that the eglibc test suite passes on 2.6.38 and older kernels, but fails on 2.6.39 and newer kernels with failures in mutex related tests. Maybe this bug should be reassigned to the linux kernel? Does this still occur with recent kernels and pulseaudio versions? It is now fixed in the kernel; commit 62aca403657fe upstream. It was a problem with futexes. Cheers Michael. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#649641: Bug #649641: pulseaudio mutex issue on Alpha architecture
The pulseaudio problem on Alpha is worse than just causing a crash in iceweasel---pulseaudio cannot auto-detect audio cards via the udev mechanism. I have a number of audio cards (HDA-intel on a newer Radeon graphics card, and M-Audio Revolution 5.1) in my Alpha XP1000 but these are not detected despite the presence of module-udev-detect in the pulseaudio system config. Trying to play sound files (aplay -D pulse some_sound_file) plays no sound and never returns. Instrumenting and recompiling pulseaudio to print out the errno of the failed call to pthread_mutex_unlock reveals an EPERM return. Anyway, I think this is a fault in the kernel, not with pulseaudio. If I boot with a 2.6.38.x variant kernel pulseaudio works, the audio cards are detected, I have the pleasant sounds of Pink Floyd playing again, and iceweasel works without crashing. Run with a newer kernel and pulseaudio fails to work. Other hints that this is a kernel problem introduced somewhere between 2.6.38 and 2.6.39 is that the eglibc test suite passes on 2.6.38 and older kernels, but fails on 2.6.39 and newer kernels with failures in mutex related tests. Maybe this bug should be reassigned to the linux kernel? Cheers Michael. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#649641: pulseaudio mutex issue on Alpha architecture
Verified that the previously-mentioned workaround is applicable to Alpha, and that it works: no more mutex failures. The specific implementation of the workaround for the 1.1-1 source package is to patch m4/ax_pthread.m4 line 266ff to read as follows: AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], ax_cv_PTHREAD_PRIO_INHERIT, [ AC_LINK_IFELSE( AC_LANG_PROGRAM([[#include pthread.h]], [[int i = PTHREAD_PRIO_INHERIT;]]), [ax_cv_PTHREAD_PRIO_INHERIT=no], [ax_cv_PTHREAD_PRIO_INHERIT=no]) ]) i.e., ax_cv_PTHREAD_PRIO_INHERIT gets set to no regardless of whether the test program compiles successfully (which it does on Alpha). -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#649641: pulseaudio mutex issue on Alpha architecture
Package: pulseaudio Version: 1.1-1 Severity: important Iceweasel and firefox browsers crash with the following error: Assertion 'pthread_mutex_unlock(m-mutex) == 0' failed at pulsecore/mutex-posix.c:106, function pa_mutex_unlock(). Aborting. Always reproducible by starting either firefox or iceweasel, then clicking on the drop-down main menu in the upper-left corner of the browser window. The application immediately aborts with the above error message. See https://bugs.meego.com/show_bug.cgi?id=13567 for a similar bug report on the ARM platform. A workaround suggested there is to disable the PTHREAD priority inheritance feature (in the source package) by adding pulseaudio_cv_PTHREAD_PRIO_INHERIT=no in configure.ac before AS_IF([test $pulseaudio_cv_PTHREAD_PRIO_INHERIT = yes], [ AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], 1, [Have PTHREAD_PRIO_INHERIT.]) ]) I have no idea whether this is applicable to Alpha. -- System Information: Debian Release: wheezy/sid APT prefers unreleased APT policy: (500, 'unreleased'), (500, 'unstable') Architecture: alpha Kernel: Linux 3.2.0-rc2 Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages pulseaudio depends on: ii adduser 3.113 ii consolekit 0.4.5-1 ii libasound2 1.0.24.1-4 ii libasound2-plugins 1.0.24-3 ii libc6.1 2.13-21 ii libcap2 1:2.22-1 ii libdbus-1-3 1.4.16-1 ii libfftw3-3 3.2.2-1 ii libice6 2:1.0.7-2 ii libltdl72.4.2-1 ii liborc-0.4-01:0.4.16-1 ii libpulse0 1.1-1 ii libsamplerate0 0.1.8-1 ii libsm6 2:1.2.0-2 ii libsndfile1 1.0.25-3 ii libspeexdsp11.2~rc1-1 ii libtdb1 1.2.9-4 ii libudev0172-1 ii libx11-62:1.4.4-4 ii libx11-xcb1 2:1.4.4-4 ii libxcb1 1.7-4 ii libxtst62:1.2.0-4 ii lsb-base3.2-28 ii udev172-1 Versions of packages pulseaudio recommends: ii gstreamer0.10-pulseaudio 0.10.30-2 ii pulseaudio-esound-compat 1.1-1 ii pulseaudio-module-x11 1.1-1 ii rtkit 0.10-2 Versions of packages pulseaudio suggests: ii paman none ii paprefs none ii pavucontrol none ii pavumeter none ii pulseaudio-utils 1.1-1 -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
