[Varnish] #1815: Child died on pipe request

Varnish varnish-bugs at varnish-cache.org
Wed Nov 11 10:42:24 CET 2015


#1815: Child died on pipe request
-------------------------+--------------------
 Reporter:  jferjan      |       Owner:
     Type:  defect       |      Status:  new
 Priority:  normal       |   Milestone:
Component:  varnishd     |     Version:  4.0.3
 Severity:  major        |  Resolution:
 Keywords:  pipe, panic  |
-------------------------+--------------------
Description changed by phk:

Old description:

> Child died on pipe request. It is possible that backend was not properly
> responding or was unreachable at that time.
>
> Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) not responding to
> CLI, killing it.
> Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) not responding to
> CLI, killing it.
> Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) died signal=6
> Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) Panic message:
> Assert error in VDI_GetFd(), cache/cache_dir.c line 111:
>   Condition((d) != NULL) not true.
> thread = (cache-worker)
> version = varnish-4.0.3 revision b8c4a34
> ident =
> Linux,3.10.0-229.4.2.el7.x86_64,x86_64,-smalloc,-smalloc,-hcritbit,epoll
> Backtrace:
>   0x433dbd: /usr/sbin/varnishd() [0x433dbd]
>   0x418915: /usr/sbin/varnishd(VDI_GetFd+0xc5) [0x418915]
>   0x434855: /usr/sbin/varnishd(PipeRequest+0xc5) [0x434855]
>   0x4384f1: /usr/sbin/varnishd(CNT_Request+0xac1) [0x4384f1]
>   0x42e14b: /usr/sbin/varnishd(HTTP1_Session+0x7ab) [0x42e14b]
>   0x43c2c7: /usr/sbin/varnishd() [0x43c2c7]
>   0x43d228: /usr/sbin/varnishd(SES_pool_accept_task+0x2a8) [0x43d228]
>   0x436c82: /usr/sbin/varnishd(Pool_Work_Thread+0x392) [0x436c82]
>   0x449dbc: /usr/sbin/varnishd() [0x449dbc]
>   0x7f42aa319df5: /lib64/libpthread.so.0(+0x7df5) [0x7f42aa319df5]
> req = 0x7f38ebde6020 {
>   sp = 0x7f393bca3d60, vxid = 1150288528,  step = R_STP_PIPE,
>   req_body = R_BODY_NONE,
>   restarts = 0, esi_level = 0,
>   sp = 0x7f393bca3d60 {
>     fd = 167, vxid = 76546703,
>     client = 193.24.248.30 8902,
>     step = S_STP_WORKING,
>   },
>   worker = 0x7f36cd5f2c50 {
>     ws = 0x7f36cd5f2e70 {
>       id = "wrk",
>       {s,f,r,e} = {0x7f36cd5f2450,0x7f36cd5f2450,(nil),+2048},
>     },
>   VCL::method = 0x0,
>   VCL::return = pipe,
>   },
>   ws = 0x7f38ebde61b8 {
>     id = "req",
>     {s,f,r,e} = {0x7f38ebde8010,+344,(nil),+57360},
>   },
>   http[req] = {
>     ws = 0x7f38ebde61b8[req]
>       "PROPFIND",
>       "/fileadmin/pageuploads/foo",
>       "HTTP/1.1",
>       "Via: 1.1 TMG2-SI",
>       "User-Agent: Microsoft-WebDAV-MiniRedir/6.1.7601",
>       "Host: www.example.com",
>       "Depth: 0",
>       "translate: f",
>       "Connection: Keep-Alive",
>       "Content-Length: 0",
>       "X-Forwarded-For: 123.123.123.123",
>   },
>   vcl = {
>     srcname = {
>       "input",
>       "Builtin",
>     },
>   },
> },
> Nov 10 14:49:51 varnish4 varnishd[25760]: child (25732) Started
> Nov 10 14:49:51 varnish4 varnishd[25760]: Child (25732) said Child starts
>
> possible duplicate: https://www.varnish-cache.org/trac/ticket/1730

New description:

 Child died on pipe request. It is possible that backend was not properly
 responding or was unreachable at that time.

 {{{
 Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) not responding to
 CLI, killing it.
 Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) not responding to
 CLI, killing it.
 Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) died signal=6
 Nov 10 14:49:51 varnish4 varnishd[25760]: Child (30586) Panic message:
 Assert error in VDI_GetFd(), cache/cache_dir.c line 111:
   Condition((d) != NULL) not true.
 thread = (cache-worker)
 version = varnish-4.0.3 revision b8c4a34
 ident =
 Linux,3.10.0-229.4.2.el7.x86_64,x86_64,-smalloc,-smalloc,-hcritbit,epoll
 Backtrace:
   0x433dbd: /usr/sbin/varnishd() [0x433dbd]
   0x418915: /usr/sbin/varnishd(VDI_GetFd+0xc5) [0x418915]
   0x434855: /usr/sbin/varnishd(PipeRequest+0xc5) [0x434855]
   0x4384f1: /usr/sbin/varnishd(CNT_Request+0xac1) [0x4384f1]
   0x42e14b: /usr/sbin/varnishd(HTTP1_Session+0x7ab) [0x42e14b]
   0x43c2c7: /usr/sbin/varnishd() [0x43c2c7]
   0x43d228: /usr/sbin/varnishd(SES_pool_accept_task+0x2a8) [0x43d228]
   0x436c82: /usr/sbin/varnishd(Pool_Work_Thread+0x392) [0x436c82]
   0x449dbc: /usr/sbin/varnishd() [0x449dbc]
   0x7f42aa319df5: /lib64/libpthread.so.0(+0x7df5) [0x7f42aa319df5]
 req = 0x7f38ebde6020 {
   sp = 0x7f393bca3d60, vxid = 1150288528,  step = R_STP_PIPE,
   req_body = R_BODY_NONE,
   restarts = 0, esi_level = 0,
   sp = 0x7f393bca3d60 {
     fd = 167, vxid = 76546703,
     client = 193.24.248.30 8902,
     step = S_STP_WORKING,
   },
   worker = 0x7f36cd5f2c50 {
     ws = 0x7f36cd5f2e70 {
       id = "wrk",
       {s,f,r,e} = {0x7f36cd5f2450,0x7f36cd5f2450,(nil),+2048},
     },
   VCL::method = 0x0,
   VCL::return = pipe,
   },
   ws = 0x7f38ebde61b8 {
     id = "req",
     {s,f,r,e} = {0x7f38ebde8010,+344,(nil),+57360},
   },
   http[req] = {
     ws = 0x7f38ebde61b8[req]
       "PROPFIND",
       "/fileadmin/pageuploads/foo",
       "HTTP/1.1",
       "Via: 1.1 TMG2-SI",
       "User-Agent: Microsoft-WebDAV-MiniRedir/6.1.7601",
       "Host: www.example.com",
       "Depth: 0",
       "translate: f",
       "Connection: Keep-Alive",
       "Content-Length: 0",
       "X-Forwarded-For: 123.123.123.123",
   },
   vcl = {
     srcname = {
       "input",
       "Builtin",
     },
   },
 },
 Nov 10 14:49:51 varnish4 varnishd[25760]: child (25732) Started
 Nov 10 14:49:51 varnish4 varnishd[25760]: Child (25732) said Child starts
 }}}
 possible duplicate: https://www.varnish-cache.org/trac/ticket/1730

--

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1815#comment:1>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator



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