ISO testers (level-1) VMs crash when running the test suite with Jessie's kernel
… but works fine when boooted with Wheezy’s kernel. In both cases, the system is running Jessie.
Symptoms: the system is unresponsible, including ping.
I can’t reproduce that bug (with nested virtualization as well) in another Jessie VM, that’s running on different hardware, but with a very similar setup. I can’t reproduce it on bare metal either.
More information I could gather:
[ 152.976056] INFO: rcu_sched detected stalls on CPUs/tasks: { 0 2} (detected by 1, t=5254 jiffies, g=7943, c=7942, q=6728)
[ 360.096135] INFO: task kworker/u6:0:6 blocked for more than 120 seconds.
[ 360.097693] Not tainted 3.16.0-4-amd64 #1
[ 360.098687] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.100691] INFO: task jbd2/dm-0-8:139 blocked for more than 120 seconds.
[ 360.102189] Not tainted 3.16.0-4-amd64 #1
[ 360.103178] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.105015] INFO: task jbd2/vdb-8:328 blocked for more than 120 seconds.
[ 360.106475] Not tainted 3.16.0-4-amd64 #1
[ 360.107462] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.109328] INFO: task rs:main Q:Reg:700 blocked for more than 120 seconds.
[ 360.110740] Not tainted 3.16.0-4-amd64 #1
[ 360.111654] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.113449] INFO: task master:787 blocked for more than 120 seconds.
[ 360.114731] Not tainted 3.16.0-4-amd64 #1
[ 360.115645] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.117405] INFO: task pickup:798 blocked for more than 120 seconds.
[ 360.118682] Not tainted 3.16.0-4-amd64 #1
[ 360.119595] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.121365] INFO: task cucumber:2205 blocked for more than 120 seconds.
[ 360.122598] Not tainted 3.16.0-4-amd64 #1
[ 360.123446] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.125100] INFO: task qemu-system-x86:2308 blocked for more than 120 seconds.
[ 360.126514] Not tainted 3.16.0-4-amd64 #1
[ 360.127370] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
and:
BUG: soft lockup - CPU#2 stuck for 22s! [kworker/2:1:34]
Attachments
Related issues
- Related to #9264 (closed)
- Related to #10717 (closed)
-
Blocked by #11178 (closed)
Original created by @intrigeri on 9157 (Redmine)