TC2: cpu0 hot unplug stalled system

Bug #1331926 reported by Naresh Kamboju on 2014-06-19
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Linaro Stable Kernel (LSK)

Bug Description

CPU0 hot unplug stalled system.
This is been noticed on LSK and linux-linaro.
Serial console stopped responding and Android screen stalled.

Test case to reproduce:
root@vexpress:/ # echo 0 > /sys/devices/system/cpu/cpu0/online
[ 9791.920840] IRQ160 no longer affine to CPU0
[ 9791.921149] CPU0: shutdown

Linux version 3.10.42-00214-gddb020c (jenkins-build@ip-10-242-58-95) (gcc version 4.8.3 20140401 (prerelease) (Linaro GCC 4.8-2014.04) ) #1 SMP Wed Jun 11 04:18:29 UTC 2014

Linux version 3.15.0 (jenkins-build@ip-10-60-19-154) (gcc version 4.8.3 20140401 (prerelease) (Linaro GCC 4.8-2014.04) ) #1 SMP Wed Jun 18 01:11:15 UTC 2014

This bug started occurring from June-11-2014 and LSK commit ID: ddb020c86c1de65

Alex Shi (alex-shi) wrote :

Hi Naresh,

ddb020c86c1de65 is a merge commit. you need to run 'git bisect' for detailed specific commit.

Alex Shi (alex-shi) wrote :

please notify me for any LSK bugs.

To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.