paman crashed with SIGFPE in pa_cvolume_avg()

StacktraceTop:?? () from /usr/lib/libpulse.so.0
pa_cvolume_avg () from /usr/lib/libpulse.so.0
SampleWindow::updateInfo (this=0x8de7ad8, i=@0x8514070)
SampleInfo::showWindow (this=0x8514070)
ServerInfoManager::showSampleWindow (this=0x82b39c0,

Had the same issue
$ paman
** Message: Starting in record mode.
** Message: Using device 'alsa_output.pci_8086_27d8_sound_card_0_alsa_playback_0.monitor'
** Message: Using sample format: float32le 2ch 44100Hz
** Message: Using channel map: front-left,front-right
Floating point exception (core dumped)
ryan@lt:~$
(pavumeter:32483): Gtk-CRITICAL **: gtk_main_quit: assertion `main_loops != NULL' failed

The error comes probably from the following line:

    snprintf(t, sizeof(t), "%0.0f%%", (double) pa_sw_volume_to_linear(pa_cvolume_avg(&i.volume)) * 100);

In SampleWindow.cc
void SampleWindow::updateInfo(const SampleInfo &i) {

The problem comes from lib-pulse0
pa_cvolume_avg()

paman did not check for numbers of channel

Thank you for both the bug and the patch. I have, nevertheless, a few questions:

(1) did you test the patch? If so, did it work?
(2) Have you checked upstream if this has already been fixed on the current head (although it looks that upstream has been inactive for a while...)?
(3) have you reported it upstream? If so, can you link the report here?

Thank you.

well, I went ahead and tested it. I can confirm the fix.

Debdiff attached, probably good also for Intrepid.

1. I tested the patch, but I could only test the case when the number of channels = 0. I think that there is antoher problem with an used library because we cannot get any information from the sound files.

2. I compared the ubuntu's version and the upstream one, and I did not find any differences.

3. I did not find any tracking tool. I send an email to the author of the project.

Thank you for the debdiff

I also tried to find a BTS for paman, but the freshmeat site http://freshmeat.net/projects/paman does not provide a BTS (the "report a bug" link there is to report issues with freshmeat, *not* the project :-(

And, you are welcome. Thank YOU for your work here.

Lennart advises us to use pa_cvolume_valid() instead, so I've made that change.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.8
Date: Fri, 03 Apr 2009 17:58:11 -0400
Source: paman
Binary: paman
Architecture: source
Version: 0.9.4-1ubuntu2
Distribution: jaunty
Urgency: low
Maintainer: Ubuntu MOTU Developers <email address hidden>
Changed-By: Daniel T Chen <email address hidden>
Description:
 paman - PulseAudio Manager
Launchpad-Bugs-Fixed: 352959
Changes:
 paman (0.9.4-1ubuntu2) jaunty; urgency=low
 .
   * Add 0002-Fix-sigfpe-with-invalid-number-of-channels.patch based on a
     patch by Yann Simon (LP: #352959)
Checksums-Sha1:
 775e22b4838c17a75f78543ed444ba574331e566 1352 paman_0.9.4-1ubuntu2.dsc
 87982dc874a19f5bdfd8588c041d232c34a043cf 3969 paman_0.9.4-1ubuntu2.diff.gz
Checksums-Sha256:
 f80ffe271215988e598d5a362cd4e91ebba2fa37e481025cc678d83ebaff3508 1352 paman_0.9.4-1ubuntu2.dsc
 bc20964b14310118a572be5c6f8d149842799567e1df01872809d132e1e02585 3969 paman_0.9.4-1ubuntu2.diff.gz
Files:
 3dc67e5bd887ab051631988a0400dd33 1352 sound optional paman_0.9.4-1ubuntu2.dsc
 559e79dba65c86b536189a2d8b38d718 3969 sound optional paman_0.9.4-1ubuntu2.diff.gz
Original-Maintainer: CJ van den Berg <email address hidden>

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This bug was fixed in the package paman - 0.9.4-1ubuntu2

---------------
paman (0.9.4-1ubuntu2) jaunty; urgency=low

  * Add 0002-Fix-sigfpe-with-invalid-number-of-channels.patch based on a
    patch by Yann Simon (LP: #352959)

 -- Daniel T Chen <email address hidden> Fri, 03 Apr 2009 17:58:11 -0400

Merged upstream in c12cf2bfa6497e742cc52f2d71cb8e2f2f52050d (http://git.0pointer.de/?p=paman.git;a=commitdiff;h=c12cf2bfa6497e742cc52f2d71cb8e2f2f52050d)