Activity log for bug #1081734

Date Who What changed Old value New value Message
2012-11-21 18:38:37 bhs bug added bug
2012-11-21 18:38:37 bhs attachment added patch for malloc_deadlock from http://sourceware-org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none https://bugs.launchpad.net/bugs/1081734/+attachment/3440527/+files/malloc_deadlock_patch
2012-11-21 20:21:37 Ubuntu Foundations Team Bug Bot tags patch
2012-11-21 20:21:43 Ubuntu Foundations Team Bug Bot bug added subscriber Ubuntu Review Team
2012-11-26 02:39:50 Adam Conrad nominated for series Ubuntu Precise
2012-11-26 02:39:50 Adam Conrad bug task added eglibc (Ubuntu Precise)
2012-11-26 11:03:46 Adam Conrad eglibc (Ubuntu): status New Fix Committed
2012-11-26 17:55:15 Launchpad Janitor eglibc (Ubuntu): status Fix Committed Fix Released
2012-12-20 07:15:43 bhs eglibc (Ubuntu): assignee bhs (bharath-vegito)
2012-12-20 07:15:52 bhs eglibc (Ubuntu): assignee bhs (bharath-vegito)
2012-12-20 07:15:55 bhs eglibc (Ubuntu Precise): assignee bhs (bharath-vegito)
2012-12-27 07:49:39 bhs eglibc (Ubuntu Precise): status New In Progress
2013-01-03 13:20:05 bhs description - malloc sleeps continously when the mallocstress application which part of ltp package is executed in a loop. - From gdb backtrace it appears to be for a futex to be released in libc code. This is deadlock in glibc There are some discussions going on for including this fix in next eglibc release. emails http://sourceware.org/ml/libc-alpha/2012-06/msg00648.html http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/23397 http://sourceware.org/ml/libc-alpha/2012-07/msg00027.html http://sourceware.org/ml/libc-alpha/2012-08/msg00163.html http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/832985 discussion in http://sourceware-org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none - malloc sleeps continously when the mallocstress application which part of ltp package is executed in a loop. - From gdb backtrace it appears to be for a futex to be released in libc code. This is deadlock in glibc There are some discussions going on for including this fix in next eglibc release. emails http://sourceware.org/ml/libc-alpha/2012-06/msg00648.html http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/23397 http://sourceware.org/ml/libc-alpha/2012-07/msg00027.html http://sourceware.org/ml/libc-alpha/2012-08/msg00163.html http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/832985 discussion in http://sourceware-org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none
2013-01-03 13:23:08 bhs eglibc (Ubuntu): assignee bhs (bharath-vegito)
2013-01-18 18:09:36 bhs eglibc (Ubuntu): assignee bhs (bharath-vegito)
2013-01-18 18:09:39 bhs eglibc (Ubuntu Precise): assignee bhs (bharath-vegito)
2013-01-27 23:58:38 Adam Conrad nominated for series Ubuntu Quantal
2013-01-27 23:58:38 Adam Conrad bug task added eglibc (Ubuntu Quantal)
2013-01-27 23:58:49 Adam Conrad eglibc (Ubuntu Quantal): status New In Progress
2013-01-28 03:44:57 Adam Conrad description - malloc sleeps continously when the mallocstress application which part of ltp package is executed in a loop. - From gdb backtrace it appears to be for a futex to be released in libc code. This is deadlock in glibc There are some discussions going on for including this fix in next eglibc release. emails http://sourceware.org/ml/libc-alpha/2012-06/msg00648.html http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/23397 http://sourceware.org/ml/libc-alpha/2012-07/msg00027.html http://sourceware.org/ml/libc-alpha/2012-08/msg00163.html http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/832985 discussion in http://sourceware-org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none [Impact / Justification] There's a malloc deadlock in glibc, easily reproduced by the mallocstress part of ltp, but otherwise tripped in regular usage here and there. The upstream patch applied in this SRU resolves that. [Test Case] Run mallocstress repeatedly before and after upgrade and watch the deadlocks be less deadlocky. [Regression Potential] This has been tested quite extensively upstream and in 2.16 in raring, and seems to be a marked improvement with no one reporting any adverse effects, so should be fine. [Original Report] - malloc sleeps continously when the mallocstress application which part of ltp package is executed in a loop. - From gdb backtrace it appears to be for a futex to be released in libc code. This is deadlock in glibc There are some discussions going on for including this fix in next eglibc release. emails http://sourceware.org/ml/libc-alpha/2012-06/msg00648.html http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/23397 http://sourceware.org/ml/libc-alpha/2012-07/msg00027.html http://sourceware.org/ml/libc-alpha/2012-08/msg00163.html http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/832985 discussion in http://sourceware-org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none
2013-01-28 08:39:49 Adam Conrad eglibc (Ubuntu): assignee Adam Conrad (adconrad)
2013-01-28 08:39:52 Adam Conrad eglibc (Ubuntu Precise): assignee Adam Conrad (adconrad)
2013-01-28 08:40:01 Adam Conrad eglibc (Ubuntu Quantal): assignee Adam Conrad (adconrad)
2013-01-28 10:58:59 Colin Watson eglibc (Ubuntu Precise): status In Progress Fix Committed
2013-01-28 10:59:01 Colin Watson bug added subscriber Ubuntu Stable Release Updates Team
2013-01-28 10:59:03 Colin Watson bug added subscriber SRU Verification
2013-01-28 10:59:05 Colin Watson tags patch patch verification-needed
2013-01-28 11:00:11 Colin Watson eglibc (Ubuntu Quantal): status In Progress Fix Committed
2013-04-23 12:08:11 Adam Conrad tags patch verification-needed patch verification-done
2013-04-23 15:36:06 Colin Watson removed subscriber Ubuntu Stable Release Updates Team
2013-04-23 15:36:16 Launchpad Janitor eglibc (Ubuntu Precise): status Fix Committed Fix Released
2013-04-23 15:36:31 Launchpad Janitor eglibc (Ubuntu Quantal): status Fix Committed Fix Released
2013-06-25 06:19:11 Launchpad Janitor branch linked lp:ubuntu/eglibc
2013-08-28 10:02:58 Launchpad Janitor branch linked lp:~ubuntu-branches/ubuntu/precise/eglibc/precise-proposed
2013-08-28 10:03:50 Launchpad Janitor branch linked lp:ubuntu/precise-updates/eglibc
2013-08-28 10:05:12 Launchpad Janitor branch linked lp:~ubuntu-branches/ubuntu/quantal/eglibc/quantal-proposed
2013-08-28 10:06:44 Launchpad Janitor branch linked lp:ubuntu/raring/eglibc