closed as per #42 comment
** Changed in: linux (Ubuntu Wily)
Status: Incomplete => Invalid
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Title:
Ubuntu 15.10 crashes
** Changed in: linux (Ubuntu Wily)
Status: In Progress => Incomplete
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Hi Joseph.
Sorry for the late reply.
Ubuntu 16.04, which uses kernel 4.4, has been tested without facing
these errors and Ubuntu 15.10 is also end-of-life July 2016.
Therefore we've decided to stop our testings as it seems to be a much
deeper investigation.
Thank you for all the help.
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Hey Joseph. This kernel is working as expected. No crashes so far, RAID
rebuild complete.
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Title:
Ubuntu 15.10 crashes with RAID-10
I built the next test kernel, up to the following commit:
a88464a8b0ffb2f8dfb69d3ab982169578b50f22
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
I built the next test kernel, up to the following commit:
b0996ae48285364710bce812e70ce67771ea6ef7
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Hey Joseph. This kernel is working as expected. No crashes so far, RAID
rebuild complete.
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Title:
Ubuntu 15.10 crashes with RAID-10
I built the next test kernel, up to the following commit:
59fd132340b3e37b83179d2fcb673980035edf62
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Hey Joseph. This kernel is working as expected. No crashes so far, RAID
rebuild complete.
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Title:
Ubuntu 15.10 crashes with RAID-10
I built the next test kernel, up to the following commit:
14a6f1989dae9445d4532941bdd6bbad84f4
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your
Hi again Joseph. This kernel is working as expected. No crashes so far,
RAID rebuild complete.
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Title:
Ubuntu 15.10 crashes with
I built the next test kernel, up to the following commit:
22a093b2fb52fb656658a32adc80c24ddc200ca4
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Hi again Joseph. This kernel is working as expected. No crashes so far
(running for 9 days now), RAID rebuild complete.
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Title:
I built the next test kernel, up to the following commit:
5c65e7be4cbb015e39759275746f31bb6fa74f77
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Hi again Joseph. This kernel is working as expected. No crashes so far,
RAID rebuild complete.
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Title:
Ubuntu 15.10 crashes with
I built the next test kernel, up to the following commit:
b9df84fd7c05cc300d6d14f022b8a00773ebcf8c
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Hi Joseph. I am taking over testing for Kenny. I have tested your latest
test kernel and succesfully reproduced the fault, just as the new kernel
booted. I am not even able to limit rebuild speed before the problem
appears.
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Kernel tested. Seems to be stable.
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux package in Ubuntu:
Confirmed
Status
I built the next test kernel, up to the following commit:
1b3618b60a487fa219c5381a9c983a00c40e6477
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Kernel tested. Seems to be stable.
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux package in Ubuntu:
Confirmed
Status
I built the next test kernel, up to the following commit:
d033ed9eeafc3bf33ce2de286ea2fb2c63e1c183
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
I built the next test kernel, up to the following commit:
a7ba4bf5e7ff6bfe83e41c748b77b49297c1b5d9
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Kernel tested. Seems to be stable.
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux package in Ubuntu:
Confirmed
Status
Kernel tested. Seems to be stable.
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux package in Ubuntu:
Confirmed
Status
I built the next test kernel, up to the following commit:
7adf12b87f45a77d364464018fb8e9e1ac875152
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
I built the next test kernel, up to the following commit:
c0c3a718e3ab2430a52a60d614b109e5e48e83e2
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Kernel tested. Also seems to be stable.
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux package in Ubuntu:
Confirmed
I built the next test kernel, up to the following commit:
9b289c2610c8d0e595c19d4dca318bb43b891841
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1516547
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on
Kernel tested. This seems to be stable as the server has been running
for 24 hours now and the RAID has rebuild without crash.
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** Changed in: linux (Ubuntu Wily)
Importance: Undecided => High
** Changed in: linux (Ubuntu Wily)
Status: New => In Progress
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Thanks for the testing. The results would indicate the bug was
introduced in v4.2-rc1 since 4.1 final did not exhibit the bug.
I started a kernel bisect between v4.1 and v4.2-rc1.
I built the first test kernel, up to the following commit:
4570a37169d4b44d316f40b2ccc681dc93fedc7b
The test
Our testings shows that all kernels from v4.2-rc1 to v4.2-rc5 has this
bug.
We can test downwards further but from which kernel should we continue?
v4.1-rc8-unstable?
While testing on different hardware we've experienced that this bug
doesn't seems to appear when having SSD disk only (uptime is
** Also affects: linux (Ubuntu Wily)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Wily)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
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** Attachment added: "dmesg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1516547/+attachment/4524680/+files/dmesg
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We've tested kernel v4.2-rc5-unstable which exhibits the same bug. We're
now testing downwards through the rc kernels.
While testing v4.2-rc5-unstable we managed to get some logs from `dmesg`
just before the crash. See attachment.
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The issue seems to start from kernel 4.2 and up as we haven't been able
to reproduce the problem with kernel 4.1
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Title:
Ubuntu
Next, we need to figure out which release candidate introduced this bug.
Once we find that, we can bisect down to the exact commit.
Can you test the following kernels and post back? We are looking for the
first kernel version that exhibits this bug.
Can you next test the v4.2-rc5 kernel? It can
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.
Can you test the following kernels and report back? We are looking for
the first
** Attachment added: "Syslog"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1516547/+attachment/4520691/+files/syslog
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We've located the issue to be somewhere in the RAID rebuilding process.
Turning down the RAID rebuild speed with the command "echo 1 >
/proc/sys/dev/raid/speed_limit_max" will make the installation success
but this is only pushing the crash for later in the OS.
We've also noticed when installing
The issue persist when using kernel 4.3.0-040300-generic
** Tags added: kernel-bug-exists-upstream
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Title:
Ubuntu 15.10 crashes
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux
** Package changed: ubuntu => linux (Ubuntu)
** Tags added: wily
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Title:
Ubuntu 15.10 crashes with RAID-10
Status in linux
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.3 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
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