This bug was fixed in the package eglibc - 2.15-0ubuntu20.1
---
eglibc (2.15-0ubuntu20.1) quantal; urgency=low
* Add patch ubuntu/local-disable-nscd-netgroup-caching.diff to
disable netgroup caching in the default config (LP: #1068889)
* Backport any/cvs-malloc-deadlock.diff f
This bug was fixed in the package eglibc - 2.15-0ubuntu10.4
---
eglibc (2.15-0ubuntu10.4) precise; urgency=low
* Add patch ubuntu/local-disable-nscd-netgroup-caching.diff to
disable netgroup caching in the default config (LP: #1068889)
* Backport any/cvs-malloc-deadlock.diff f
After significant abuse on several x86 machines, I was finally able to
reproduce this with the old libc6 version, but continue to be unable to
reproduce with the versions in precise/quantal-proposed. Given that no
one's found any regressions with this patch, and the few testers who had
deadlocks o
Adam,
I tried reproducing on my 12.04 machine, simply doing:
apt-get install ltp
$ /usr/lib/ltp/testcases/bin/mallocstress -l 1
main(): test passed.
Using following old libc:
ii libc6 2.15-0ubuntu10.3
Embedded GNU C Library: Shared
The ARM-specific futex issue and this one don't relate, no, the fact
that you can trigger both from the same testsuite does muddy the waters
a bit, though.
Testing this one on x86 is likely the best way to isolate it from the
lowlevellock fix, since that fix only applied to arm, parisc, and sparc,
Further to my earlier comment, I've since done some further testing with
LTP:
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1091186/comments/11
While I can't say which change fixes the issue, with the updated
packages installed, I no longer encounter a deadlock when running
mallocstress u
I had an issue with mallocstress deadlocking, but this was solved by the
patch listed in
https://bugs.launchpad.net/ubuntu/precise/+source/eglibc/+bug/1091186
I don't know enough about glibc to say if this is related or not.
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Hello bhs, or anyone else affected,
Accepted eglibc into precise-proposed. The package will build now and be
available at http://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.4
in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wiki
** Changed in: eglibc (Ubuntu)
Assignee: (unassigned) => Adam Conrad (adconrad)
** Changed in: eglibc (Ubuntu Precise)
Assignee: (unassigned) => Adam Conrad (adconrad)
** Changed in: eglibc (Ubuntu Quantal)
Assignee: (unassigned) => Adam Conrad (adconrad)
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** Description changed:
+ [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
** Also affects: eglibc (Ubuntu Quantal)
Importance: Undecided
Status: New
** Changed in: eglibc (Ubuntu Quantal)
Status: New => In Progress
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** Changed in: eglibc (Ubuntu)
Assignee: bhs (bharath-vegito) => (unassigned)
** Changed in: eglibc (Ubuntu Precise)
Assignee: bhs (bharath-vegito) => (unassigned)
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https://bugs
** Description changed:
- 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 includi
** Changed in: eglibc (Ubuntu Precise)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1081734
Title:
malloc hangs when ltp mallocstress is run repeatedly
To manage
Adam,
This bug repros in 12.04.1 system.
This patch applies to eligbc-2.15 which is in precise and quantal.
I am looking for this fix in ubuntu repository for precise. I wish to do
the required work by assigning to bug to myself and port changes to
eglibc-2.15 branch. Please let me know how I can
Hi Adam,
Any chance whether this will make into eglibc-precise branch
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https://bugs.launchpad.net/bugs/1081734
Title:
malloc hangs when ltp mallocstress is run repeatedly
To manage not
This bug was fixed in the package eglibc - 2.16-0ubuntu7
---
eglibc (2.16-0ubuntu7) raring; urgency=low
* Merge with 2.16-0experimental1 from Debian, bringing in my
upstream version of the C++ header autodetection patch, some
packaging and upgrade fixes, and reducing our del
** Changed in: eglibc (Ubuntu)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1081734
Title:
malloc hangs when ltp mallocstress is run repeatedly
To manage notifi
** Also affects: eglibc (Ubuntu Precise)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1081734
Title:
malloc hangs when ltp mallocstress is run repeatedly
The attachment "patch for malloc_deadlock from http://sourceware-
org.1504.n7.nabble.com/BZ-13939-malloc-deadlock-td13648.html#none" of
this bug report has been identified as being a patch. The ubuntu-
reviewers team has been subscribed to the bug report so that they can
review the patch. In the
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