Sometimes I can see this log if the system is in heavy loading.
I would like to extend this threshold ( 23 seconds? ) persistently.
Any way to setup it in grub or command line?
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You really don't want to do that. This message is indicative of other problems in your system. Check your BIOS version with `sudo dmidecode -s bios-version` then check the manufacturer's web site for an update. Check your RAM vs swap with `free -h`. Check for AMD processor recalls that only effect Linux. Check for processes taking too much CPU time. – heynnema Jun 24 '19 at 03:19
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2Does this answer your question? [NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! \[plymouthd:305\]](https://askubuntu.com/questions/875173/nmi-watchdog-bug-soft-lockup-cpu2-stuck-for-23s-plymouthd305) – karel Aug 07 '20 at 12:52