[cfarm-users] gcc10 complains that several CPU cores are stuck

[Bart Van Assche]

Hi,

While I was logged in to gcc10 and while my shell was idle I saw the
following messages appear on the console:

Message from syslogd at gcc10 at Jun 13 20:15:15 ...
 kernel:[8365635.533662] NMI watchdog: BUG: soft lockup - CPU#18 stuck
for 23s! [sshd:22225]

Message from syslogd at gcc10 at Jun 13 20:15:15 ...
 kernel:[8365635.537663] NMI watchdog: BUG: soft lockup - CPU#20 stuck
for 23s! [sshd:23914]

Message from syslogd at gcc10 at Jun 13 20:15:15 ...
 kernel:[8365635.541665] NMI watchdog: BUG: soft lockup - CPU#21 stuck
for 23s! [sshd:25192]

Message from syslogd at gcc10 at Jun 13 20:15:19 ...
 kernel:[8365639.538263] NMI watchdog: BUG: soft lockup - CPU#19 stuck
for 22s! [sshd:25424]

Message from syslogd at gcc10 at Jun 13 20:15:19 ...
 kernel:[8365639.546262] NMI watchdog: BUG: soft lockup - CPU#22 stuck
for 22s! [sshd:25273]

Additionally, my shell session did not accept any new commands. Did the
kernel of gcc10 perhaps lock up?

Thanks,

Bart.