indicator-sound-service crashed with SIGSEGV in xcb_setup_vendor_end()

StacktraceTop:
 xcb_setup_vendor_end () from /usr/lib/libxcb.so.1
 xcb_setup_pixmap_formats_iterator ()
 xcb_setup_roots_iterator () from /usr/lib/libxcb.so.1
 pa_x11_get_prop (xcb=0x3fc700,
 pa_client_conf_from_x11 (c=0x8842dd8, dname=0x0)

this looks like a pulse problem no ?

A simple work-around is to back out a recent change in pulseaudio stable queue to start using xcb, however that was put in to fix stability with other software. A better fix is to fix the segfault of course.

I'll look at this myself, but have also contacted upstrea to get further assistance with this one, and hope to have a patch ASAP.

A proposed fix for this bug is building in ppa:crimsun/pulseaudio; please confirm whether it resolves this symptom.

ppa:crimsun/pulseaudio appears empty, while ppa:crimsun/ppa seems to contain an update package. Daniel, can you please confirm which repo/packet/version is supposed to fix the problem?

On Sat, Sep 18, 2010 at 10:24 AM, MaxNegro <email address hidden> wrote:
> ppa:crimsun/pulseaudio appears empty, while ppa:crimsun/ppa seems to
> contain an update package. Daniel, can you please confirm which
> repo/packet/version is supposed to fix the problem?

Sigh, it looks like my ~/.dput.cf is borked. Anyhoo, it does appear
to be ppa:crimsun/ppa. Sorry for the confusion!

For everyone being added to this bug report via duplicates, please see comment #9 for a test package.

I've installed the test package, and so far I've seen no more crashes. Sadly, I've not been able to reproduce reliably even before installing the test package, so I'm not sure how much this report is meaningful. :)

Given we are out of time, I am going to upload these changes to ubuntu proper, based on the last comment in this bug.

This bug was fixed in the package pulseaudio - 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu20

---------------
pulseaudio (1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu20) maverick; urgency=low

  * 0093-backport-fixes-stable-queue-head.patch: Backport the following
    changesets from the stable-queue branch:
    + 2c564f2 (xcb: Ensure the XCB connection is valid before using it.)
    + 5c0bc09 (xcb: xcb_get_setup() can return 0, so make sure we check it before using)
    + 165cb87 (x11: Use the default screen for X11 properties.)
    (LP: #640127)
 -- Daniel T Chen <email address hidden> Sat, 18 Sep 2010 08:46:31 -0400

it happened again.... after i installed the update

Was your machine restrated between installing the update and getting the crash?

here, sometimes, the sound become to a noise..

I'm pretty sure it was. I will let you know if it logs out again....

It did it again... this is SOOOO annoying.

Please attach a backtrace.

I starting using Ubuntu a week ago.... from years of windows. Backtrace? https://wiki.ubuntu.com/Backtrace
*confusion*

To be honest I cant really remember. But it is quite unlikely that I
haven’t restarted since you normally are prompted to do so if needed.

On Wed, 2010-09-29 at 00:05 +0000, Luke Yelavich wrote:
> Was your machine restrated between installing the update and getting the
> crash?
>

I tried to collect a stacktrace. I hope this is what you are looking for...

According to #13, this was fixed in September 2010, but the fixed package version (1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu20) is still not available in Lucid (only somewhere in lucid-proposed). Any chance to get the fix into lucid?

@Sven Mueller (smu-u)
Thank you for taking the time to report this bug and helping to make Ubuntu better. However, this bug is closed because it was fixed in the development release at the time.

This is a significant bug in Ubuntu. If you need a fix for the bug in previous versions of Ubuntu, please do steps 1 and 2 of the SRU Procedure [1] to bring the need to a developer's attention.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

For you information:
pulseaudio in lucid-release is:1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14

in lucid-proposed there is: 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14.1 which is still pending verification, see bug 445849 and please help to verify that one. As that SRU should be completed before starting a new one for lucid.