** Tags added: cscc
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https://bugs.launchpad.net/bugs/1776005
Title:
kernel instability with BTRFS filesystem as rootfs
Status in linux package in Ubuntu:
Incomplete
** Changed in: linux (Ubuntu Xenial)
Status: In Progress => Incomplete
** Changed in: linux (Ubuntu)
Status: In Progress => Incomplete
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Hello Joseph,
I have tested the kernel you kindly provide in #5 but this not resolves
the issue on all laptop which have trouble.
What I said in #4 is partial and not resolves the issue on all test
cases. Sorry for this wrong interpretation, but the cases are quite
complicated.
I have hidden
Hello,
After many contradictory tests, because not reproducible, the only
solution that works on all the laptop where appeared the problem, is to
install the latest kernel 4.4.0.130.136 (proposed) and to uninstall the
package "intel-microcode" and replace it with a dummy package to prevent
the
Maybe what I say is not clear to everyone, in other words the kernel
that you propose seems to correct the problem.
Thanks.
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https://bugs.launchpad.net/bugs/1776005
Title:
Hello Joseph,
I tested the kernel you provide with the commit 2f500a9d7ff6 reverted
and after many reboot to test stability I have not been able to
reproduce the kernel "panic" with the traceback above (see #1).
I have take care that the "noapic" option wasn't pass to grub (like in
#4) and that
I built a test kernel with a revert of commit 2f500a9d7ff6. The test kernel
can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1776005
Can you test this kernel and see if it resolves this bug?
Note about installing test kernels:
• If the test kernel is prior to 4.15(Bionic) you
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Status: Incomplete => In Progress
**
Hello,
It seems that the IO-APIC [1] is the main origin of this instability.
So booting the kernel with the option "noapic" seems to be a good workaround
for this issue, even if it's difficult to me to spot the commit which is the
origin of this problem in reasonable time.
Best regards,
[1]:
** Description changed:
Hello,
As explained yesterday on #ubuntu-kernel, several laptop won't boot
(kernel panic) with the latest kernel 4.4.0-127-generic (x86_64) and
upper (proposed 4.4.0-128-generic), on Xenial 16.04 LTS
I have made many tests to verify that the bootloader
The apport log, after a successful boot on the 4.4.0-127-generic
** Attachment added: "apport.linux-image-4.4.0-127-generic.3q2f5jgx.apport"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776005/+attachment/5150600/+files/apport.linux-image-4.4.0-127-generic.3q2f5jgx.apport
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