@pepa
Please give output of:
$ dpkg -l 'linux-image-*'
The bug is fixed in 2.6.32-24.41 lucid kernel. Can you check that you
are booted into that kernel or later?
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Sorry, wrong version for 2.6.32, it is 2.6.32-45-pae-latest.
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https://bugs.launchpad.net/bugs/595489
Title:
lvm snapshot causes deadlock in 2.6.35
To manage notifications about this bu
I am experiencing this bug on Lucid 10.04.4 fully updated as of 2013-01-01,
kernel 2.6.32-24-pae-latest.
Then I installed 2.6.35-pae thinking this would resolve it, but it still causes
a hang.
Which kernel should I use if I want to make an lvm2 snapshot of an ext4
root? Would I avoid this bug i
** Changed in: linux
Importance: Unknown => Medium
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Title:
lvm snapshot causes deadlock in 2.6.35
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** Changed in: linux
Status: Unknown => Fix Released
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Title:
lvm snapshot causes deadlock in 2.6.35
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Thank you Stefan,
I have wondered about some of these updates that do not seem to apply to
my system. Thanks for letting me rest at ease about it. Now I better go
ahead and update :)
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@Thomas,
no. Both filesystems are implemented in separate drivers. You cannot prevent
updates to the ext4 driver but you do not need to care about that. As long as
you are not actually using (have a fs mounted that is ext4) it is doing nothing.
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lvm snapshot causes deadlock in 2.6.35
https://b
I am running Lucid with ext3. Is this fix even necessary for me? If not
is there a way to keep update manager from retrieving ext4 patches on my
system? This is all over my head but I did at least notice the
difference in file systems before hitting Install :)
Thank you
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The fix is much appreciated - thank's everybody !
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** Branch linked: lp:ubuntu/lucid-security/linux-mvl-dove
** Branch linked: lp:ubuntu/lucid-security/linux-ec2
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This bug was fixed in the package linux - 2.6.32-24.41
---
linux (2.6.32-24.41) lucid-security; urgency=low
[ Upstream Kernel Changes ]
* (pre-stable) ext4: fix freeze deadlock under IO
- LP: #595489
* drm: Initialize ioctl struct when no user data is present
- CVE-2010
** Tags added: verification-done
** Tags removed: verification-needed
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The most recent Maverick 2.6.35-16.22 linux kernel has been rebased with
the latest 2.6.35.2 upstream stable kernel. As noted in comment #14,
2.6.35.2 contained the patch which should resolve this issue. As a
result I'm marking this Fix Released for Maverick. Thanks.
https://edge.launchpad.net/
The Lucid SRU update worked for me. I just tested with the server kernel build
on AMD64.
I am now to:
sudo telinit S
lvcreate -L 500m -n rootsnap -s /dev/vg0/root
that used to hang but now works as expected. Nice job guys :)
I appreciate all the hard work in getting this fixed for Lucid.
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l
Accepted linux into lucid-proposed, the package will build now and be
available in a few hours. Please test and give feedback here. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed. Thank you in advance!
** Tags added: verification-needed
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** Changed in: linux (Ubuntu Lucid)
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu Lucid)
Status: Fix Released => Fix Committed
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Are you sure this is fixed for Lucid?
I'm running the kernel: 2.6.32-24.40~pre201008060902
from https://launchpad.net/~kernel-ppa/+archive/pre-proposed
(as discussed in bug 605551). Looking at its changelog, it appears to contain
the fix for this.
I'm still seeing the hang when creating an lvm
I just wanted to add the following note for Maverick... It appears this
patch is queued for the upcoming v2.6.35.2 upstream stable release [1].
We've already rebased Maverick to upstream stable v2.6.35.1 (see
linux-2.6.35-15.21) and I fully expect that v2.6.35.2 will be released
in time for us to
SRU Justification (Lucid):
Impact: Changes to ext4 which are part of 2.6.32.17 and we took in
advance to fix other issues are causing a lockup regression when working
with lvm snap-shots.
Fix: This patch, which is slowly making its way upstream, was verified
to fix this problem and is also small
At this time the patch is in linux-next but not (yet) in Linus tree. As
we plan to do a special limited change upload for Lucid I would propose
the fix for SRU there (as it is a regression in Lucid). For Maverick we
could think of picking it pre-stable as well. Greg is batching up a
first 2.6.35.y
** Tags added: maverick
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This does not block installation, and thus is not an alpha-3 blocker. A
new kernel is now out of reach for alpha-3 anyway, and it seems that
it's easier to cherrypick from upstream a bit later on. Moving
milestone.
** Changed in: linux (Ubuntu Maverick)
Milestone: maverick-alpha-3 => ubuntu-10
It seems the patch from comment #6 is slowly making it's way upstream
now:
https://patchwork.kernel.org/patch/107676/
http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git;a=summary
Hopefully it'll hit the 2.6.36 merge window and we can then consider it
for a straight cherrypick back into Mav
I can confirm that the bug starts with 2.6.32-24 in Lucid. I get a hard
lock every night on that kernel when my incremental backup runs and
snapshots /var. If I switch back to 2.6.32-23, everything works great. I
also tried the latest nightly (vmlinuz-2.6.35-999-generic) and I get the
same issue th
** Description changed:
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Looks like this problem started with kernel 2.6.32-24 in the Lucid
distro. See bug 604807 which seems to be a duplicate, as well as bug
605551, where I posted my experience with this bug.
Cheers,
Oscar
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** Tags added: patch
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** Changed in: linux (Ubuntu)
Milestone: maverick-alpha-2 => maverick-alpha-3
** Also affects: linux (Ubuntu Maverick)
Importance: High
Assignee: Phillip Susi (psusi)
Status: In Progress
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Oh, and I tested it last night and it seemed to work.
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This is the proposed patch from upstream. It looks like Linus hasn't
been merging the last few days and today is kernel freeze so I think
we're going to need to apply it ourselves.
** Patch added: "fix-ext4.patch"
http://launchpadlibrarian.net/50912732/fix-ext4.patch
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