When calling exp_timer sometimes varnish crash under heavy load.

zhenli yan yanzhenli83 at gmail.com
Mon May 27 05:47:41 CEST 2013

The varnish version is 3.0.3-plus.

The crash info is as follows.

Last panic at: Thu, 23 May 2013 10:04:25 GMT
Assert error in exp_timer(), cache_expire.c line 360:
  Condition((oc)->magic == 0x4d301302) not true.
thread = (cache-timeout)
ident = Linux,,x86_64,-spersistent,-smalloc,-hclassic,epoll
  0x431fa3: pan_ic+d3
  0x4246d6: exp_timer+86
  0x434709: wrk_bgthread+a9
  0x7f4e341886a6: _end+7f4e33b0732e
  0x7f4e33ef7f7d: _end+7f4e33876c05
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