Comment 14 for bug 1670634

------- Comment From <email address hidden> 2017-03-14 12:07 EDT-------
I was able to run into the hand now also without openafs, /var/log/syslog:

Mar 14 15:10:46 mclint multipathd[887]: mpatha: sda - tur checker timed out
Mar 14 15:10:46 mclint multipathd[887]: 8:0: reinstated
Mar 14 15:10:46 mclint multipathd[887]: mpatha: sdb - tur checker timed out
Mar 14 15:10:46 mclint multipathd[887]: 8:16: reinstated
Mar 14 15:10:46 mclint multipathd[887]: mpatha: sdc - tur checker timed out
Mar 14 15:10:46 mclint multipathd[887]: 8:32: reinstated
Mar 14 15:10:46 mclint multipathd[887]: mpatha: sdd - tur checker timed out
Mar 14 15:10:46 mclint multipathd[887]: 8:48: reinstated

On the sclp_line console:

? 9841.149452! INFO: task btrfs-transacti:634 blocked for more than 120 seconds.

? 9841.149459! Not tainted 4.4.0-67-generic #88
? 9841.149461! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9841.149627! INFO: task cpuplugd:2409 blocked for more than 120 seconds.
? 9841.149628! Not tainted 4.4.0-67-generic #88
? 9841.149629! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9841.149674! INFO: task irqbalance:2515 blocked for more than 120 seconds.
? 9841.149675! Not tainted 4.4.0-67-generic #88
? 9841.149676! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9841.149715! INFO: task kworker/0:2:3661 blocked for more than 120 seconds.
? 9841.149716! Not tainted 4.4.0-67-generic #88
? 9841.149717! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9841.149752! INFO: task tar:16648 blocked for more than 120 seconds.
? 9841.149753! Not tainted 4.4.0-67-generic #88
? 9841.149754! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9961.149482! INFO: task btrfs-transacti:634 blocked for more than 120 seconds.

? 9961.149489! Not tainted 4.4.0-67-generic #88
? 9961.149490! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9961.149640! INFO: task rs:main Q:Reg:1995 blocked for more than 120 seconds.
? 9961.149642! Not tainted 4.4.0-67-generic #88
? 9961.149642! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9961.149727! INFO: task cpuplugd:2409 blocked for more than 120 seconds.
? 9961.149729! Not tainted 4.4.0-67-generic #88
? 9961.149729! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9961.149772! INFO: task irqbalance:2515 blocked for more than 120 seconds.
? 9961.149773! Not tainted 4.4.0-67-generic #88
? 9961.149773! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
? 9961.149811! INFO: task kworker/0:2:3661 blocked for more than 120 seconds.
? 9961.149812! Not tainted 4.4.0-67-generic #88
? 9961.149812! "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.

I just made a new dump ->
General dump info:
Dump format........: s390mv
Version............: 5
Dump created.......: Tue, 14 Mar 2017 15:45:29 +0100
Dump ended.........: Tue, 14 Mar 2017 15:46:07 +0100
Dump CPU ID........: 9efc729648000
UTS node name......: mclint
UTS kernel release.: 4.4.0-67-generic
UTS kernel version.: #88 SMP Wed Mar 8 14:48:51 UTC 2017
Build arch.........: s390x (64 bit)
System arch........: s390x (64 bit)
CPU count (online).: 3
CPU count (real)...: 4
Dump memory range..: 8192 MB
Real memory range..: 8192 MB

The dump is currently uploaded to the Box-Folder -> mclint_20170314_kernel_4_4_0-67_without_openafs.dump.bz2