Ubuntu
pulseaudio package

pulseaudio crashed with SIGSEGV in _IceTransClose()

Bug #1942685 reported by Leó Kolbeinsson on 2021-09-04

This bug affects 9 people

	Status	Importance	Assigned to
PulseAudio	Fix Released	Unknown	auto-gitlab.freedesktop.org-pulseaudio-pulseaudio-- #1281
pulseaudio (Ubuntu)	Fix Released	High	Unassigned
Impish	Fix Released	High	Unassigned

Bug Description

* Impact

The pulseaudio service sometime segfaults on session closing which trigger a bug report dialog

* Test plan

Log out of a desktop session and back in, there should be no error prompt

The issue isn't triggered only randomly it seems so it might be easier to check that reports stop on
https://errors.ubuntu.com/problem/877172e07ed9f86b0674cd458a5aaf24b37fb01e

* Where problems could occur

The change is in the X session closing handling so shouldn't impact on normal use, if incorrect the fix could lead to increase the chance of hitting the segfault when an Xsession is closed

---

Installing Xubuntu Impish daily ISO 04092021

After install I rebooted - applied updates and then rebooted again-

the errors (pulseaudio crashed with SIGSEGV in _IceTransClose() ) occurred after logging in.

ProblemType: Crash
DistroRelease: Ubuntu 21.10
Package: pulseaudio 1:15.0+dfsg1-1ubuntu2
ProcVersionSignature: Ubuntu 5.13.0-14.14-generic 5.13.1
Uname: Linux 5.13.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu68
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kx 847 F.... pulseaudio
CasperMD5CheckResult: pass
Date: Sat Sep 4 16:43:45 2021
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2021-09-04 (0 days ago)
InstallationMedia: Xubuntu 21.10 "Impish Indri" - Alpha amd64 (20210904)
ProcCmdline: /usr/bin/pulseaudio --daemonize=no --log-target=journal
Signal: 11
SourcePackage: pulseaudio
StacktraceTop:
_IceTransClose () from /lib/x86_64-linux-gnu/libICE.so.6
_IceFreeConnection () from /lib/x86_64-linux-gnu/libICE.so.6
IceCloseConnection () from /lib/x86_64-linux-gnu/libICE.so.6
SmcCloseConnection () from /lib/x86_64-linux-gnu/libSM.so.6
?? () from /usr/lib/pulse-15.0+dfsg1/modules/module-x11-xsmp.so
Title: pulseaudio crashed with SIGSEGV in _IceTransClose()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
dmi.bios.date: 12/23/2020
dmi.bios.release: 1.51
dmi.bios.vendor: LENOVO
dmi.bios.version: DKCN51WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo V14-IIL
dmi.ec.firmware.release: 1.51
dmi.modalias: dmi:bvnLENOVO:bvrDKCN51WW:bd12/23/2020:br1.51:efr1.51:svnLENOVO:pn82C4:pvrLenovoV14-IIL:skuLENOVO_MT_82C4_BU_idea_FM_V14-IIL:rvnLENOVO:rnLNVNB161216:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrLenovoV14-IIL:
dmi.product.family: V14-IIL
dmi.product.name: 82C4
dmi.product.sku: LENOVO_MT_82C4_BU_idea_FM_V14-IIL
dmi.product.version: Lenovo V14-IIL
dmi.sys.vendor: LENOVO
separator:

See original description

Tags:

Revision history for this message

Leó Kolbeinsson (leok) wrote on 2021-09-04:

AlsaInfo.txt Edit (44.9 KiB, text/plain; charset="utf-8")
CoreDump.gz Edit (927.2 KiB, application/x-gzip)
CurrentDmesg.txt Edit (75.1 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (4.5 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (965 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (11.0 KiB, text/plain; charset="utf-8")
PaInfo.txt Edit (90.1 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.7 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (290 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (73.8 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.4 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (22.2 KiB, text/plain; charset="utf-8")
Registers.txt Edit (1.4 KiB, text/plain; charset="utf-8")
SegvAnalysis.txt Edit (233 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (4.2 KiB, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2021-09-04:

StacktraceTop:
_IceTransClose (ciptr=0x564e4f344d30) at /usr/include/X11/Xtrans/Xtrans.c:946
_IceFreeConnection (iceConn=iceConn@entry=0x564e4f516430) at ../../src/shutdown.c:275
IceCloseConnection (iceConn=iceConn@entry=0x564e4f516430) at ../../src/shutdown.c:231
SmcCloseConnection (smcConn=0x564e4f363e30, count=count@entry=0, reasonMsgs=reasonMsgs@entry=0x0) at ../../src/sm_client.c:309
x11_kill_cb (w=<optimized out>, userdata=0x564e4f31f990) at ../src/modules/x11/module-x11-xsmp.c:73

tags:

removed: need-amd64-retrace

Revision history for this message

Ubuntu QA Website (ubuntuqa) wrote on 2021-09-04:

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1942685

tags:

added: iso-testing

Daniel van Vugt (vanvugt) on 2021-09-06

description:

updated

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-09-06:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in pulseaudio (Ubuntu):
status:	New → Confirmed

Daniel van Vugt (vanvugt) on 2021-09-07

tags:

added: regression-release

Revision history for this message

Igor V. Kovalenko (i-garrison) wrote on 2021-09-07:

I cannot reproduce this yet. Could someone who can please collect pulseaudio daemon verbose log for this crash?

Revision history for this message

Sebastien Bacher (seb128) wrote on 2021-09-29:

Could someone report the issue upstream on https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues ? it seems a problem with the new code to handle session closing correctly

Revision history for this message

Leó Kolbeinsson (leok) wrote on 2021-09-29:

Tested Xubuntu Impish daily 29-09-2021 and was unable to to reproduce the bug -

This test was on the same machine (Lenovo V14-IIL) as my initial report.

Revision history for this message

Brian Murray (brian-murray) wrote on 2021-09-29:

Pulseaudio hasn't been updated since mid-August so it'd be helpful if you were to do some additional testing leok.

Revision history for this message

Leó Kolbeinsson (leok) wrote on 2021-09-29 (last edit on 2021-09-30):

@brian-murray -

Yes I will continue to test but fyi - I have run 24 tests on Xubuntu (14 different ISO´s) since the original report without being able to reproduce the error.

Revision history for this message

Sebastien Bacher (seb128) wrote on 2021-10-05:

#10

Reported upstream now as https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/1281

Changed in pulseaudio (Ubuntu):
importance:	Undecided → High
status:	Confirmed → Triaged

Revision history for this message

Sebastien Bacher (seb128) wrote on 2021-10-22:

#11

Could someone having the issue set log-level=debug in /etc/pulse/daemon.conf , restart and add the journalctl log after getting the bug?

Changed in pulseaudio (Ubuntu):
status:	Triaged → Fix Committed

Sebastien Bacher (seb128) on 2021-10-25

description:

updated

Revision history for this message

Brian Murray (brian-murray) wrote on 2021-10-26: Please test proposed package

#12

Hello Leó, or anyone else affected,

Accepted pulseaudio into impish-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/pulseaudio/1:15.0+dfsg1-1ubuntu2.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-impish to verification-done-impish. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-impish. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in pulseaudio (Ubuntu Impish):
status:	New → Fix Committed
tags:	added: verification-needed verification-needed-impish

Revision history for this message

Leó Kolbeinsson (leok) wrote on 2021-10-26:

#13

Hello Brian (brian-murray)

Please see my comment #9 above - i have run numerous tests on Xubuntu Impish and have been unable to reproduce this bug.

Mathew Hodson (mhodson) on 2021-10-31

Changed in pulseaudio (Ubuntu Impish):
importance:	Undecided → High

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-11-01:

#14

It's a prolific crash in impish so we'll be able to tell if the fix isn't working here: https://errors.ubuntu.com/problem/877172e07ed9f86b0674cd458a5aaf24b37fb01e

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-11-06:

#15

This bug was fixed in the package pulseaudio - 1:15.0+dfsg1-1ubuntu3

---------------
pulseaudio (1:15.0+dfsg1-1ubuntu3) jammy; urgency=medium

  * debian/patches/gitlab_ice_error.patch:
    - cherry pick an upstream candidate fix for a segfault issue in the
      session closing handling (lp: #1942685)

-- Sebastien Bacher <email address hidden> Fri, 22 Oct 2021 12:28:32 +0200

Changed in pulseaudio (Ubuntu):
status:	Fix Committed → Fix Released

Revision history for this message

Chris Halse Rogers (raof) wrote on 2021-12-01:

#16

Checking https://errors.ubuntu.com/problem/877172e07ed9f86b0674cd458a5aaf24b37fb01e I see that there are no reports of this for 1:15.0+dfsg1-1ubuntu2.1 in Impish and, reassuringly, no reports of this for 1:15.0+dfsg1-1ubuntu3 in Jammy, either.

I think that's sufficient to mark this as verified.

tags:

added: verification-done verification-done-impish
removed: verification-needed verification-needed-impish

Revision history for this message

Chris Halse Rogers (raof) wrote on 2021-12-01: Update Released

#17

The verification of the Stable Release Update for pulseaudio has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-12-01:

#18

This bug was fixed in the package pulseaudio - 1:15.0+dfsg1-1ubuntu2.1

---------------
pulseaudio (1:15.0+dfsg1-1ubuntu2.1) impish; urgency=medium

  * debian/patches/gitlab_ice_error.patch:
    - cherry pick an upstream candidate fix for a segfault issue in the
      session closing handling (lp: #1942685)

-- Sebastien Bacher <email address hidden> Fri, 22 Oct 2021 12:28:32 +0200

Changed in pulseaudio (Ubuntu Impish):
status:	Fix Committed → Fix Released

Bug Watch Updater (bug-watch-updater) on 2022-05-20

Changed in pulseaudio:
status:	Unknown → Fix Released

Report a bug

This report contains Public information

Everyone can see this information.

Duplicates of this bug

Bug #1942728

You are

Subscribing...

Edit bug mail

Other bug subscribers

Bug attachments

Add attachment

Remote bug watches

auto-gitlab.freedesktop.org-pulseaudio-pulseaudio-- #1281
[closed] Edit

Bug watches keep track of this bug in other bug trackers.

Ubuntupulseaudio package

pulseaudio crashed with SIGSEGV in _IceTransClose()

Bug Description

Duplicates of this bug

Other bug subscribers

Bug attachments

Remote bug watches

Ubuntu
pulseaudio package