[Bug 1497593] Re: [nouveau] Programs crash with SIGABRT in nouveau_pushbuf_data: Assertion `kref' failed.

[Daniel van Vugt]

** Description changed:

- webbrowser-app crashed with SIGABRT in __assert_fail_base()
- 
- ProblemType: Crash
- DistroRelease: Ubuntu 15.10
- Package: webbrowser-app 0.23+15.10.20150913-0ubuntu1
- ProcVersionSignature: Ubuntu 4.2.0-10.12-generic 4.2.0
- Uname: Linux 4.2.0-10-generic x86_64
- ApportVersion: 2.18.1-0ubuntu1
- Architecture: amd64
- CurrentDesktop: Unity
- Date: Sat Sep 19 20:05:51 2015
- ExecutablePath: /usr/bin/webbrowser-app
- InstallationDate: Installed on 2015-09-18 (1 days ago)
- InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150918)
- ProcCmdline: webbrowser-app
- Signal: 6
- SourcePackage: webbrowser-app
- StacktraceTop:
-  __assert_fail_base (fmt=0x7f1aba6fd028 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion at entry=0x7f1aa469f879 "kref", file=file at entry=0x7f1aa469f85a "../../nouveau/pushbuf.c", line=line at entry=726, function=function at entry=0x7f1aa469f8a0 "nouveau_pushbuf_data") at assert.c:92
-  __GI___assert_fail (assertion=0x7f1aa469f879 "kref", file=0x7f1aa469f85a "../../nouveau/pushbuf.c", line=726, function=0x7f1aa469f8a0 "nouveau_pushbuf_data") at assert.c:101
-  nouveau_pushbuf_data () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
-  nouveau_pushbuf_data () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
-  ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
- Title: webbrowser-app crashed with SIGABRT in __assert_fail_base()
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ Programs crash with SIGABRT in nouveau_pushbuf_data: Assertion `kref'
+ failed. Because nouveau is not thread safe(?)

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https://bugs.launchpad.net/bugs/1497593

Title:
  [nouveau] Programs crash with SIGABRT in nouveau_pushbuf_data:
  Assertion `kref' failed.

Status in Mesa:
  Unknown
Status in libdrm package in Ubuntu:
  Confirmed
Status in mesa package in Ubuntu:
  Confirmed

Bug description:
  Programs crash with SIGABRT in nouveau_pushbuf_data: Assertion `kref'
  failed. Because nouveau is not thread safe(?)

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