*** This bug is a duplicate of bug 1955429 ***
https://bugs.launchpad.net/bugs/1955429
** This bug has been marked a duplicate of bug 1955429
watchdog: BUG: soft lockup - CPU#3 stuck for 25s! [swapper/3:0]
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1942952
I downgraded to 20.04 LTS and 5.8 kernel. So far, it seems more
reliable than the 5.11 kernel. The watchdog_thresh is default 10.
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https://bugs.launchpad.net/bugs/1942952
Title:
The slow CPU (N5000 CPU @ 1.10GHz) may play a role in the watchdog soft
lockup. You can increase the watchdog time and check whether the
messages will go away and pop up less frequently:
$ echo 20 | sudo tee /proc/sys/kernel/watchdog_thresh
The above command will change the default (10) to 20
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14/amd64/
Headers are not needed.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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I disabled Secure Boot and same problem. Seems to happen reliably on
cold boots.
** Attachment added: "dmesg with Secure Boot disabled"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+attachment/5524215/+files/dmesg.txt
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