[Varnish] #1522: Assert error in cnt_lookup(), cache/cache_req_fsm.c line 416: Condition((oc->exp_flags & (1<<7)) == 0) not true

[Varnish]

#1522: Assert error in cnt_lookup(), cache/cache_req_fsm.c line 416:
Condition((oc->exp_flags & (1<<7)) == 0) not true
---------------------------------+----------------------
 Reporter:  Jay                  |       Type:  defect
   Status:  new                  |   Priority:  high
Milestone:  Varnish 4.0 release  |  Component:  varnishd
  Version:  4.0.0                |   Severity:  major
 Keywords:                       |
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 I found an existing and solved ticket regarding line 417, but not line 416

 Panic message: Assert error in cnt_lookup(), cache/cache_req_fsm.c line
 416:   Condition((oc->exp_flags & (1<<7)) == 0) not true. errno = 104
 (Connection reset by peer) thread = (cache-worker) ident =
 Linux,3.10.40,x86_64,-smalloc,-smalloc,-hcritbit,epoll Backtrace:
 0x4321f5: pan_ic+0xc5   0x4352ae: cnt_lookup+0x94e   0x435ba1:
 CNT_Request+0x831   0x42cccb: HTTP1_Session+0x7cb   0x439aa8:
 ses_req_pool_task+0x68   0x434679: Pool_Work_Thread+0xa9   0x44725e:
 wrk_thread_real+0xae   0x7fbbbd05b1db:
 /usr/app/glibc/current/lib/libpthread.so.0(+0x81db) [0x7fbbbd05b1db]
 0x7fbbbcd90d4d: /usr/app/glibc/current/lib/libc.so.6(clone+0x6d)
 [0x7fbbbcd90d4d] req = 0x7fbba6597520 {   sp = 0x7fbbac558c50, vxid =
 1077334200,  step = R_STP_LOOKUP,   req_body = R_BODY_NONE,   restarts =
 0, esi_level = 0   sp = 0x7fbbac558c50 {     fd = 3312, vxid = 3592375,
 client = x.x.x.x 42129,     step = S_STP_WORKING,   },   worker =
 0x7fbb74864c70 {     ws = 0x7fbb74864e80 {

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1522>
Varnish <https://varnish-cache.org/>
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