As an update, it's now been roughly a week with no freezes or crashes
for me. I have not changed my usage pattern: same dock, same external
display, devices, etc., and same applications used. I did change one
thing however. When I was switching again to the linux-image-
oem-20.04-edge I decided to
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-oem-5.6 (Ubuntu)
Status: New => Confirmed
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Thanks kailoran, indeed it was added after 5.6 - my goal was the test on 5.10,
I should have been more clear about that heheh
Cheers!
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/proc/sys/kernel/oops_all_cpu_backtrace seems unavailable in 5.6 (added
in 5.8 per a quick search). I'll switch to 5.10 again and try there.
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It's just me twice on two different kernels ;)
I'll try doing that. Might takie a while to get a repro since I'm also
trying to (a) see if not having the external monitor / connecting it
differently helps (b) do actual work on that machine. I'll reply when I
have something.
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Thanks for the report! Can you both boot the machine fresh and enable
oops_backtrace, by executing "echo 1 | sudo tee
/proc/sys/kernel/oops_all_cpu_backtrace" ? Then I'll need the full
dmesg, after the issue happens, as kailoran updated.
If that is not enough we might need a kdump later.
Thanks in
I also got a similar freeze on 5.10.0-1016-oem (from linux-image-
oem-20.04-edge), was also able to ssh in, and got a similar dmesg:
BUG: unable to handle page fault for address: ffefba9d49e3)
...
I had this running for longer, and what followed were CPU lockup logs
like
watchdog: BUG: soft
** Summary changed:
- Xorg freeze
+ System freeze
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Package changed: linux (Ubuntu) => linux-oem-5.6 (Ubuntu)
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