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[Bug 1237794] Re: hard lockup on filserver

 

Last nights/this mornings lock up had nothing logged:

Oct  9 20:20:48 enterprise sm-notify[867]: Unable to notify starbug.sec-consulting.co.uk, giving up
Oct  9 20:20:48 enterprise sm-notify[867]: Unable to notify subversion.sec-consulting.co.uk, giving up
Oct  9 20:27:49 enterprise kernel: [ 1391.065867] perf samples too long (2559 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
Oct  9 21:17:01 enterprise CRON[2416]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct  9 22:17:01 enterprise CRON[2479]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct  9 23:00:12 enterprise kernel: [10530.153330] perf samples too long (5096 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
Oct  9 23:17:01 enterprise CRON[2602]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct 10 00:17:01 enterprise CRON[2652]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct 10 01:17:01 enterprise CRON[2738]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct 10 10:03:24 enterprise kernel: imklog 5.8.11, log source = /proc/kmsg started.
Oct 10 10:03:24 enterprise rsyslogd: [origin software="rsyslogd" swVersion="5.8.11" x-pid="1119" x-info="http://www.rsyslog.com";] start
Oct 10 10:03:24 enterprise rsyslogd: rsyslogd's groupid changed to 103
Oct 10 10:03:24 enterprise rsyslogd: rsyslogd's userid changed to 101
Oct 10 10:03:24 enterprise rsyslogd-2039: Could not open output pipe '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
Oct 10 10:03:24 enterprise kernel: [    0.000000] Initializing cgroup subsys cpuset
Oct 10 10:03:24 enterprise kernel: [    0.000000] Initializing cgroup subsys cpu
Oct 10 10:03:24 enterprise kernel: [    0.000000] Initializing cgroup subsys cpuacct
Oct 10 10:03:24 enterprise kernel: [    0.000000] Linux version 3.11.0-12-generic (buildd@allspice) (gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu7) ) #18-Ubuntu SMP Tue Oct 8 20:51:28 UTC 2013 (Ubuntu 3.11.0-12.18-generic 3.11.3)

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https://bugs.launchpad.net/bugs/1237794

Title:
  hard lockup on filserver

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Hi,
      My Core i7 18TB BTRFS file server has been upgraded to 13.10 and since doing so locks up frequently.  Previously it never crashed and was only taken down for maintenance, Monday we upgraded to 13.10 and since then it locks up ever 20hrs or so. We were doing a large backup last night and it locked up within 6 or so hrs.

  On the 1st occurrence absolutely nothing was in the logs, on the 2nd
  occurrence there was some NFS hang messages, when system comes back up
  I will check and post any logging information gleaned.

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References