[Varnish] #1765: Assert error in HTTP_GetHdrPack()

[Varnish]

#1765: Assert error in HTTP_GetHdrPack()
--------------------------+----------------------
 Reporter:  llavaud       |       Type:  defect
   Status:  new           |   Priority:  normal
Milestone:                |  Component:  varnishd
  Version:  4.1.0-TP1     |   Severity:  major
 Keywords:  Assert error  |
--------------------------+----------------------
 {{{
 Child (991401) Panic message:
 Assert error in HTTP_GetHdrPack(), cache/cache_http.c line 930:
   Condition(vct_issp(*ptr)) not true.
 thread = (cache-worker)
 version = varnish-4.1.0-tp1 revision 0e4e1bc
 ident = Linux,3.2.0-4-amd64,x86_64,-junix,-sfile,-smalloc,-hcritbit,epoll
 Backtrace:
   0x434324: pan_ic+0x134
   0x42e39f: HTTP_GetHdrPack+0x29f
   0x424891: vbf_fetch_thread+0x1161
   0x44940a: WRK_Thread+0x48a
   0x44997b: pool_thread+0x2b
   0x7f4f44004b50: libpthread.so.0(+0x6b50) [0x7f4f44004b50]
   0x7f4f43d4e95d: libc.so.6(clone+0x6d) [0x7f4f43d4e95d]
   busyobj = 0x7f3624c06020 {
     ws = 0x7f3624c060e0 {
       id = "bo",
       {s,f,r,e} = {0x7f3624c07f98,+832,(nil),+254048},
     },
     refcnt = 2
     retries = 0
     failed = 0
     state = 0
     flags = {
       do_stream
     }
     director_req = 0x7f4f43202080 {
       vcl_name = webssi01
       name = backend
       display_name = 8bf50d44-c3e5-4563-b070-58802ae1562c.webssi01
       ipv4 = 172.20.0.11
       port = 80
       hosthdr = 172.20.0.11
       health=healthy, admin_health=probe, changed=1437098584.3
     }
   objcore (FETCH) = 0x7f361ca487c0 {
     refcnt = 1
     flags = 0x2
     objhead = 0x7f361e757860
     stevedore = (nil)
   }
   objcore (IMS) = 0x7f36223de100 {
     refcnt = 3
     flags = 0x0
     objhead = 0x7f361e757860
     stevedore = 0x7f4f430e3180 (file s0)
   }
   }

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1765>
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