Yes, I confirm that this has been fixed in raring. Thank you!
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https://bugs.launchpad.net/bugs/1089818
Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
To
** Changed in: linux (Ubuntu)
Status: Fix Committed = Fix Released
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Title:
kernel crash when mounting encrypted (device mapped) ext4
@Martin,
I'd like to mark this bug as Fix Released. Can you confirm this bug
is resolved in the latest Raring release?
Thanks in advance
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Applied the official fix and backed out the revert. Moved this Fix
Committed to indicate that the next upload will carry a real fix. This
does not imply that the current uploads are not still protected.
** Changed in: linux (Ubuntu)
Status: Fix Released = Fix Committed
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** No longer affects: linux
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Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
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@Martin, one additional question. Do you happen to have access to real
scsi hardware? It would be good to know if this bug happens on
scsi_debug and real hardware.
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Are you able to capture the complete backtrace on the console with
your VM setup?
Unfortunately not, kvm only gives me an 80x25 terminal. However, when I
see the crash on my workstation on bare metal, I do see the complete
one.
I don't have my real camera this week, so I only could do a photo
** Branch linked: lp:ubuntu/raring-proposed/linux-lowlatency
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Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
To
** Also affects: linux
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Released
** Changed in: linux
Assignee: (unassigned) = Joseph Salisbury (jsalisbury)
** Changed in: linux
Importance: Undecided = High
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Netconsole capture while reproducing bug.
** Attachment added: netconsole-lp1089818.log
https://bugs.launchpad.net/linux/+bug/1089818/+attachment/3463299/+files/netconsole-lp1089818.log
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Martin, commit 5db44863b6ebbb400c5e61d56ebe8f21ef48b1bd was reverted in
Raring, so this bug is fixed in Ubuntu. However, I still would like to
work with upstream to see if this can be fixed without reverting that
commit in v3.8.
** Changed in: linux (Ubuntu)
Status: Fix Released = In
** Branch linked: lp:ubuntu/raring-proposed/linux-ppc
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Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
To manage
This bug was fixed in the package linux - 3.7.0-7.15
---
linux (3.7.0-7.15) raring; urgency=low
[ Chris J Arges ]
* SAUCE: add eeprom_bad_csum_allow module parameter
- LP: #1070182
[ Leann Ogasawara ]
* Add ceph to linux-image for virtual instances
- LP: #1063784
Martin,
Are you able to capture the complete backtrace on the console with your
VM setup? If not, I'll setup a a netconsole[0] on my bare metal system.
[0] https://wiki.ubuntu.com/Kernel/Netconsole
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I confirm that with this test kernel the crash does not happen any more
and udisks mounting of encrypted ext4 partitions works fine. I ran the
original udisks test several times in a row.
Thanks Joseph!
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
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Interestingly this does not crash if the cleartext device gets VFAT, i.
e. with
sudo luksformat /dev/sda
(no -t ext4, it defaults to -t vfat)
I tried with -t ext2 ant -t ext3, and both seem to work.
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@Martin,
There is a newer kernel available, 3.7.0-6.14. Can you test with this
latest Raring kernel and see if it also exhibits this bug?
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Tags added: kernel-key
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It seems like there is an easy test case, so I'll see if I can reproduce
it. If I can, I should be able to perform a bisect to identify the
commit that introduced the regression.
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I was able to reproduce this issue on Raring with the latest updates.
Since I can reproduce, I'll perform a kernel bisect to try and identify
the offending commit.
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screenshot of crash. RIP: kthread_data
** Attachment added: lp1089818-jsalisbury.jpg
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1089818/+attachment/3459316/+files/lp1089818-jsalisbury.jpg
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** Tags added: performing-bisect
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Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
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Just some testing updates:
mainline v3.7-rc1 is good.
mainline v3.7-rc4 is good.
mainline v3.7-rc6 is good.
mainline v3.7-rc7 introduced bug.
I'll now perform a bisect between v3.7-rc6 and v3.7-rc7 to identify the
specific commit.
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Thanks Joseph, I appreciate!
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Title:
kernel crash when mounting encrypted (device mapped) ext4 partition
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Hi Martin,
I bisected down this bug to commit:
5db44863b6ebbb400c5e61d56ebe8f21ef48b1bd
I built a raring test kernel with this commit reverted. The kernel
fixed the bug on my system. Can you also test the kernel to see if it
resolves the bug for you?
The kernel can be downloaded from:
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