FS#46570 - [linux-lts] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0]

Attached to Project: Arch Linux
Opened by Jan Visser (starquake) - Monday, 05 October 2015, 19:53 GMT
Last edited by Andreas Radke (AndyRTR) - Wednesday, 07 October 2015, 20:27 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Andreas Radke (AndyRTR)
Architecture x86_64
Severity Critical
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
After upgrading to linux-lts 4.1.9-2 my Intel NUC DN2820FYKH no longer boots.

The machine locks up and after a while this shows up on the screen:
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0]

The amount of seconds differ.

Additional info:
linux-lts 4.1.9-2

Booting linux 4.2.2-1 is no problem.
journalctl does not show anything useful. It shows as if there was a reboot.

I updated the BIOS, machine still locks up

Anything else I can try?
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Wednesday, 07 October 2015, 20:27 GMT
Reason for closing:  Fixed
Additional comments about closing:  patch applied to 4.1.10-2
Comment by Jan Visser (starquake) - Monday, 05 October 2015, 20:19 GMT
Really sorry for not following the bug reporting guidelines... I will read them carefully next time. I can't rename the subject anymore. Feel free to fix it.
Comment by John Luebs (jkluebs) - Monday, 05 October 2015, 21:03 GMT
It is likely this: https://lkml.org/lkml/2015/9/30/1117 a soft lockup in the networking stack.

It was fixed but the patch did not make it to 4.1.10

commit 83fccfc3940c4a2db90fd7e7079f5b465cd8c6af
Author: Eric Dumazet <edumazet@google.com>
Date: Thu Aug 13 15:44:51 2015 -0700

inet: fix potential deadlock in reqsk_queue_unlink()

4.1.8 does not have this problem.
Comment by Jan Visser (starquake) - Monday, 05 October 2015, 21:17 GMT
Okay I'll stay on 4.2.2 then. Thanks!
Comment by Geert Hendrickx (ghen) - Wednesday, 07 October 2015, 19:49 GMT
The fix is here, but has not been backported to 4.1.x LTS branch yet:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=83fccfc3940c4a2db90fd7e7079f5b465cd8c6af

Please consider patching it in linux-lts package for the time being.

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