** Changed in: linux (Ubuntu Precise)
Status: Fix Committed = Fix Released
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Title:
xfs_btree_cur leak
Status in “linux”
Can you apply the latest updates and confirm if this bug is fixed or
not?
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Title:
xfs_btree_cur leak
Status in “linux” package in
This patch was requested and accepted in upstream 3.2.62. Precise now
has the 3.2.62 upstream updates as of Ubuntu-3.2.0-68.102, which is in
the -proposed repository.
Would it be possible for you to test this latest kernel and post back if it
resolves this bug?
See
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Status: New = In Progress
** Changed in: linux (Ubuntu Precise)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) =
Does the patched kernel continue to help? If so, I can request that
commit e3a746f5 is included in upstream 3.2. It which case, it will be
included in Precise through the normal stable update process.
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Yes, it did continue to help. I'd suggest it be included for future
stable updates.
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Title:
xfs_btree_cur leak
Status in “linux”
I ran this kernel on a relatively busy server over the past 5 days and
it looks like the second version of your patched kernel has closed the
memory leak and resolved the bug.
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The patched did not seem to help.
$ uname -rv
3.2.0-65-generic #98~lp1327360v1 SMP Fri Jun 13 21:24:49 UTC 2014
$ uptime
18:02:53 up 19:30, 1 user, load average: 1.62, 1.71, 1.68
$ sudo grep xfs_btree_cur /proc/slabinfo
xfs_btree_cur 161382 161382208 392 : tunables00
Ok, re-reading the mail archive, it looks like the following commit is
needed:
e3a746f5 xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
I'll backport this commit and build another test kernel.
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I built a Precise test kernel with a cherry-pick of commit e3a746f5 . The test
kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1327360/
Can you test this kernel and see if it resolves this bug?
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Thanks! We'd appreciate some time, as we have largely dealt with the
issue by upgrading to the 3.8.0 backport kernel, and I'm going on
vacation next week. I'll see if one of my colleagues can get back to
you.
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** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Tags added: kernel-da-key precise
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Title:
xfs_btree_cur leak
Strange, I see that the commit that fixes this bug was applied to
mainline twice. Once in v3.5-rc4 and then again in v3.6-rc1:
76d0953 xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near
079da28 xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near
$ git describe --contains 76d0953
I built a Precise test kernel with a cherry-pick of commit 079da28. The test
kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1327360/
Can you test this kernel and see if it resolves this bug? If it does,
we can send an SRU request to the kernel-team mailing list for
$ uname -a
Linux REDACTED 3.2.0-45-generic #70-Ubuntu SMP Wed May 29 20:12:06 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
$ sudo grep xfs_btree_cur /proc/slabinfo
xfs_btree_cur 26695461 26695461208 392 : tunables000
: slabdata 684499 684499 0
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$ uname -a
Linux
See http://www.redhat.com/archives/dm-devel/2012-July/msg00015.html for
a confirmation of this issue on mainline 3.5rc4 (since fixed).
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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