Hello!
Actually, we got a surprising behavior.
Shortly after communication in this thread, the bug just disappeared, for
nearly two months.
Still had no luck reproducing.
We used this opportunity to migrate and reboot part of our servers to activate
kdump on them, and decided to wait.
A couple
Thank you all for your ideas!
Sure, we do have some modules not from the kernel source tree. These are
Mellanox (our NICs) and OpenvSwitch, as we've had some problems that
were fixed in the newer driver versions.
We don't have apport enabled, and actually, the hypervisor nodes don't even
have di
** Attachment added: "crash-160321.log"
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.4/+bug/1921355/+attachment/5480851/+files/crash-160321.log
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** Attachment added: "crash-080321.log"
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.4/+bug/1921355/+attachment/5480849/+files/crash-080321.log
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** Attachment added: "crash-110321.log"
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.4/+bug/1921355/+attachment/5480850/+files/crash-110321.log
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Public bug reported:
Hi!
Recently (throughout the last 6 months) we've upgraded our hypervisor
compute hosts from ubuntu bionic kernel 4.15.* to ubuntu bionic hwe
kernel 5.4.
This month we noticed that several nodes failed due to bugs in cgroups.
Trace was different almost every time, but it all
Very odd bug.
Appeared again for me >_>
So posting the temporary workaround I found here:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/751265/comments/23
I guess now I can sleep easy at night :D
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