Bug#639211: [pulseaudio] PA gets killed if module-combine and realtime scheduling enabled.

[Antonio Ospite]

Package: pulseaudio
Version: 1.0-4
Followup-For: Bug #639211

Severity: important

Hi,

I too am experiencing this problem, this is the output of strace, I am on 
x86_64:

-[ BEGIN ]-------------------------------------------------------------
....
open("/usr/lib/pulse-1.0/modules/module-combine-sink.so", O_RDONLY) = 31
read(31, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3403\0\0\0\0\0\0"..., 832) = 832
fstat(31, {st_mode=S_IFREG|0644, st_size=40648, ...}) = 0
mmap(NULL, 2135760, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 31, 0) = 0x7fb3e8ca7000
mprotect(0x7fb3e8cb0000, 2097152, PROT_NONE) = 0
mmap(0x7fb3e8eb0000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 31, 0x9000) = 0x7fb3e8eb0000
close(31)                               = 0
eventfd2(0, O_CLOEXEC)                  = 31
eventfd2(0, O_CLOEXEC)                  = 32
eventfd2(0, O_CLOEXEC)                  = 33
eventfd2(0, O_CLOEXEC)                  = 34
eventfd2(0, O_CLOEXEC)                  = 35
eventfd2(0, O_CLOEXEC)                  = 36
eventfd2(0, O_CLOEXEC)                  = 37
eventfd2(0, O_CLOEXEC)                  = 38
mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb3e84a6000
mprotect(0x7fb3e84a6000, 4096, PROT_NONE) = 0
clone(child_stack=0x7fb3e8ca5fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fb3e8ca69d0, tls=0x7fb3e8ca6700, child_tidptr=0x7fb3e8ca69d0) = 23378
futex(0xe4d350, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
sendto(32, "\1\0\0\0\0\0\0\0", 8, MSG_NOSIGNAL, NULL, 0) = -1 ENOTSOCK (Socket operation on non-socket)
write(32, "\1\0\0\0\0\0\0\0", 8)        = 8
futex(0xe4d350, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
+++ killed by SIGKILL +++
Ucciso
-[ END ]---------------------------------------------------------------

As a workaround I am running "pulseaudio --realtime=false" in a console after 
logging in, but maybe I could even disable realtime in some config file.

I also gave a quick test to the latest upstream version and it runs fine, either with 
--realtime=false or --realtime=true, but I didn't use all the compile options 
as the Debian package, I am attaching the ldd difference between the two 
binaries, just to contextualize the quick test.

Please let me know if you need more info.

Thanks,
   Antonio Ospite
   http://ao2.it

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (600, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.1.0-rc9-ao2 (SMP w/1 CPU core)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (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  1.0.24-2+b1
ii  libc6               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  libltdl7            2.4-4      
ii  liborc-0.4-0        1:0.4.15-2 
ii  libpulse0           1.0-4      
ii  libsamplerate0      0.1.8-1    
ii  libsm6              2:1.2.0-2  
ii  libsndfile1         1.0.25-3   
ii  libspeexdsp1        1.2~rc1-1  
ii  libtdb1             1.2.9-4+b1 
ii  libudev0            172-1      
ii  libx11-6            2:1.4.4-2  
ii  libx11-xcb1         2:1.4.4-2  
ii  libxcb1             1.7-3      
ii  libxtst6            2:1.2.0-3  
ii  lsb-base            3.2-28     
ii  udev                172-1      

Versions of packages pulseaudio recommends:
ii  gstreamer0.10-pulseaudio  0.10.30-1
ii  pulseaudio-esound-compat  1.0-4    
ii  pulseaudio-module-x11     1.0-4    
ii  rtkit                     0.10-2   

Versions of packages pulseaudio suggests:
ii  paman             <none>  
ii  paprefs           0.9.9-2 
ii  pavucontrol       0.99.2-1
ii  pavumeter         <none>  
ii  pulseaudio-utils  1.0-4   

-- no debconf information
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