------- Comment From [email protected] 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670634 Title: blk-mq: possible deadlock on CPU hot(un)plug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1670634/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
