[Varnish] #1732: Assert error in SES_Close()

[Varnish]

#1732: Assert error in SES_Close()
--------------------------------+----------------------
 Reporter:  llavaud             |       Type:  defect
   Status:  new                 |   Priority:  normal
Milestone:                      |  Component:  varnishd
  Version:  trunk               |   Severity:  major
 Keywords:  panic assert error  |
--------------------------------+----------------------
 {{{
 May  6 11:02:33 webcache14 varnishd[502993]: Child (503012) died signal=6
 May  6 11:02:33 webcache14 varnishd[502993]: Child (503012) Panic message:
 Assert error in SES_Close(), cache/cache_session.c line 530:
   Condition(sp->fd >= 0) not true.
 errno = 104 (Connection reset by peer)
 thread = (cache-worker)
 version = varnish-trunk revision 668be11
 ident = Linux,3.2.0-4-amd64,x86_64,-junix,-sfile,-smalloc,-hcritbit,epoll
 Backtrace:
   0x433044: pan_ic+0x134
   0x43bc7c: SES_Close+0x24c
   0x43a14b: vrg_range_bytes+0xdb
   0x41af0f: VDP_close+0x4f
   0x44bbb7: V1D_Deliver+0x1f7
   0x437189: CNT_Request+0x389
   0x44c88b: HTTP1_Session+0x12b
   0x43a901: SES_Proto_Req+0x61
   0x4354f8: Pool_Work_Thread+0x3c8
   0x448053: WRK_Thread+0x103
 req = 0x7eefee046020 {
   sp = 0x7eeffcdfc420, vxid = 10424451,  step = R_STP_DELIVER,
   req_body = R_BODY_NONE,
   restarts = 0, esi_level = 0,
   sp = 0x7eeffcdfc420 {
     fd = -1, vxid = 68247,
     client = 194.51.87.86 40367,
     step = S_STP_H1PROC,
   },
   worker = 0x7eeff928ac30 {
     stack = {0x7eeff928b000 -> 0x7eeff927f000}
     ws = 0x7eeff928ae38 {
       id = "wrk",
       {s,f,r,e} = {0x7eeff928a420,0x7eeff928a420,(nil),+2040},
     },
     VCL::method = DELIVER,
     VCL::return = deliver,
     VCL::methods = {RECV, HASH, MISS, DELIVER},
   },
   ws = 0x7eefee046208 {
     id = "req",
     {s,f,r,e} = {0x7eefee048028,+3360,(nil),+253904},
   },
   http[req] = {
     ws = 0x7eefee046208[req]
       "GET",
       "myuri",
       "HTTP/1.1",
       "Connection: keep-alive",
       "Accept: image/webp,*/*;q=0.8",
       "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36",}}}

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1732>
Varnish <https://varnish-cache.org/>
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