BUG: soft lockup - CPU#3 stuck for 22s! [httpd:1889]

Mateusz Marzantowicz mmarzantowicz at osdf.com.pl
Mon Dec 23 11:02:49 UTC 2013

On 23.12.2013 03:30, Steven P. Ulrick wrote:
> Hello, Everyone
> I just ran "yum update" and rebooted.  Some time not long after that
> reboot, I started getting message like this:
> Dec 22 20:11:26 afolkey2 kernel: [ 4130.161465] BUG: soft lockup - CPU#3 stuck for 22s! [httpd:1889]
> [...]
> I rebooted into an older kernel and have not had any more of these
> messages popping up.
> Eventually, my system became unresponsive and I had to reboot.

To clarify, does it happen with old or new kernel?

> I am running Fedora 20 (fully updated)
> Installation method: fedup
> Any ideas?

It looks like httpd is hanging somewhere doing something and kernel
detects this. It might also be that your system is busy on doing I/O
operations etc. and httpd process is blocked waiting for CPU time.

Mateusz Marzantowicz

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