[Varnish] #1796: Assert error in SES_Proto_Req

[Varnish]

#1796: Assert error in SES_Proto_Req
--------------------------+----------------------
 Reporter:  llavaud       |       Type:  defect
   Status:  new           |   Priority:  normal
Milestone:                |  Component:  varnishd
  Version:  4.1.0         |   Severity:  normal
 Keywords:  Assert error  |
--------------------------+----------------------
 {{{
 Oct  5 10:48:35 webcache12 varnishd[303280]: Child (303299) Panic message:
 Assert error in SES_Proto_Req(), cache/cache_session.c line 320:
   Condition((wrk->v1l) == 0) not true.
 thread = (cache-worker)
 version = varnish-4.1.0 revision 3041728
 ident = Linux,3.2.0-4-amd64,x86_64,-junix,-sfile,-smalloc,-hcritbit,epoll
 Backtrace:
   0x4351b6: varnishd() [0x4351b6]
   0x43b58c: varnishd(SES_Proto_Req+0xcc) [0x43b58c]
   0x44a212: varnishd() [0x44a212]
   0x44a65b: varnishd() [0x44a65b]
   0x7f7f243e0b50: libpthread.so.0(+0x6b50) [0x7f7f243e0b50]
   0x7f7f2412a95d: libc.so.6(clone+0x6d) [0x7f7f2412a95d]
 req = 0x7f660f15e020 {
   vxid = 0, step = R_STP_DELIVER,
   req_body = R_BODY_INIT,
   restarts = 0, esi_level = 0,
   sp = 0x7f66066a5120 {
     fd = 296, vxid = 2883737,
     client = 199.30.25.233 45442,
     step = S_STP_H1NEWREQ,
   },
   ws = 0x7f660f15e200 {
     id = "req",
     {s,f,r,e} = {0x7f660f160000,0x7f660f160000,+32768,+253944},
   },
   http_conn = 0x7f660f15e128 {
     fd = 296,
     doclose = NULL,
     ws = 0x7f660f15e200,
     {rxbuf_b, rxbuf_e} = {0x7f660f160000, 0x7f660f160000},
     {pipeline_b, pipeline_e} = {(nil), (nil)},
     content_length = -1,
     body_status = none,
     first_byte_timeout = 0.000000,
     between_bytes_timeout = 0.000000,
   },
   http[req] = 0x7f660f15e298 {
     ws[req] = 0x7f660f15e200,
     hdrs {
       "",
       "/myuri",
       "HTTP/1.1",
       "Accept: text/html, */*; q=0.01",
       "Referer: myreferer",
       "X-Requested-With: XMLHttpRequest",
       "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+
 (KHTML, like Gecko) BingPreview/1.0b",
       "Content-Type: application/x-www-form-urlencoded; charset=UTF-8",
       "X-Forwarded-For: myip",
       "Host: myhost",
       "Surrogate-Capability: abc=ESI/1.0",
       "Cookie: user_logged

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1796>
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