[Varnish] #275: Varnish child stops responding

[Varnish]

#275: Varnish child  stops responding
---------------------------------+------------------------------------------
 Reporter:  chenxy               |        Owner:  phk                      
     Type:  defect               |       Status:  new                      
 Priority:  high                 |    Milestone:  Varnish 2.0 code complete
Component:  varnishd             |      Version:  trunk                    
 Severity:  normal               |   Resolution:                           
 Keywords:  Varnish child stuck  |  
---------------------------------+------------------------------------------
Comment (by chenxy):

 I had changed the parameter. But child exited again with not responding to
 ping .
 I feel that is because the swap file synchronization in kernel, I will
 change scheduling method of kernel and filesystem parameter , I will try
 again.

 {{{
 param.show
 200 1873
 ......
 cli_timeout                20 [seconds]
 ping_interval              10 [seconds]
 ......
 }}}

 but

 {{{
 Sep 15 13:32:12 236-25 kernel: fter: 0"
 Sep 15 13:32:12 236-25 varnishd[72350]: child (4407) Started
 Sep 15 13:32:12 236-25 varnishd[72350]: Child (4407) said Closed fds: 7 8
 11 12 14 15
 Sep 15 13:32:12 236-25 varnishd[72350]: Child (4407) said Child starts
 Sep 15 13:32:12 236-25 varnishd[72350]: Child (4407) said managed to mmap
 17179869184 bytes of 17179869184
 Sep 15 13:32:12 236-25 last message repeated 3 times
 Sep 15 13:32:12 236-25 varnishd[72350]: Child (4407) said Ready
 Sep 15 17:04:11 236-25 varnishd[72350]: Child (4407) not responding to
 ping, killing it.
 Sep 15 17:04:16 236-25 kernel: pid 4407 (varnishd), uid 65534: exited on
 signal 3 (core dumped)
 Sep 15 17:04:16 236-25 varnishd[72350]: Child (4407) not responding to
 ping, killing it.
 Sep 15 17:04:17 236-25 varnishd[72350]: child (14869) Started
 Sep 15 17:04:17 236-25 varnishd[72350]: Child (14869) said Closed fds: 7 8
 11 12 14 15
 Sep 15 17:04:17 236-25 varnishd[72350]: Child (14869) said Child starts
 Sep 15 17:04:17 236-25 varnishd[72350]: Child (14869) said managed to mmap
 17179869184 bytes of 17179869184
 Sep 15 17:04:17 236-25 last message repeated 3 times
 Sep 15 17:04:17 236-25 varnishd[72350]: Child (14869) said Ready
 }}}

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Ticket URL: <http://varnish.projects.linpro.no/ticket/275#comment:9>
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