[Varnish] #994: Assert error in http_GetHdr(), cache_http.c

[Varnish]

#994: Assert error in http_GetHdr(), cache_http.c
---------------------+------------------------------------------------------
 Reporter:  pmialon  |        Type:  defect  
   Status:  new      |    Priority:  normal  
Milestone:           |   Component:  varnishd
  Version:  trunk    |    Severity:  blocker 
 Keywords:           |  
---------------------+------------------------------------------------------
 From Git af353a6b6a45e2a47e17aa84389950a1c65854ec

 With the debian package varnish 3.0.0 this bug didn't appear, it seems
 that this is a regression.

 This bugs is hit frequently, on our servers varnish never reaches one hour
 of uptime.

 {{{
 Aug 29 14:24:34 cloud3 varnishd[3495]: Child (19452) Panic message: Assert
 error in http_GetHdr(), cache_http.c line 266:
   Condition(l == strlen(hdr + 1)) not true.
 thread = (cache-worker)
 ident = Linux,2.6.32-5-amd64,x86_64,-sfile,-smalloc,-hcritbit,epoll
 Backtrace:
   0x42e4c8: /usr/sbin/varnishd() [0x42e4c8]
   0x429c08: /usr/sbin/varnishd(http_GetHdr+0x68) [0x429c08]
   0x433c47: /usr/sbin/varnishd(VRY_Match+0xf7) [0x433c47]
   0x427e86: /usr/sbin/varnishd(HSH_Lookup+0x2a6) [0x427e86]
   0x415a3b: /usr/sbin/varnishd() [0x415a3b]
   0x418fc5: /usr/sbin/varnishd(CNT_Session+0x675) [0x418fc5]
   0x430c78: /usr/sbin/varnishd() [0x430c78]
   0x42fe49: /usr/sbin/varnishd() [0x42fe49]
   0x7ffff6ab48ba: /lib/libpthread.so.0(+0x68ba) [0x7ffff6ab48ba]
   0x7ffff681c02d: /lib/libc.so.6(clone+0x6d) [0x7ffff681c02d]
 sp = 0x7ec790b21008 {
   fd = 53, id = 53, xid = 2071385764,
   client = 127.0.0.1 11364,
   step = STP_LOOKUP,
   handling = hash,
   restarts = 0, esi_level = 0
   flags =
   bodystatus = 4
   ws = 0x7ec790b21080 {
     id = "sess",
     {s,f,r,e} = {0x7ec790b21cc8,+3344,+65536,+65536},
   },
   http[req] = {
     ws = 0x7ec790b21080[sess]
       "GET",
 "/searchkw/xml/?_q%5B0%5D=%28suzuki%7Bw%3D1%7D+115%7Bw%3D1%7D%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D4&_q%5B1%5D=%28suzuki%7Bw%3D1%7D%29+OPT%28115%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D3&_q%5B2%5D=OPT%28suzuki+OR+115%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D3&_q%5B3%5D=OPT%28suzuki+OR+115%29+-category%3Aall+country%3AES+%28category%3Amiscellaneous%29+querywords%3E%3D2&_vn%5B0%5D=defaultkw_new&_vn%5B1%5D=defaultkw_new&_vn%5B2%5D=defaultkw_new&_vn%5B3%5D=seo_keywords_round_new&_cc%5B0%5D=IT&_cc%5B1%5D=IT&_cc%5B2%5D=IT&_cc%5B3%5D=ES&_comp=gzip&_fmt=JSON&_hashq%5B1%5D=1&_hashq%5B2%5D=1&_hashq%5B3%5D=1&_hstart%5B2%5D=1",
       "HTTP/1.1",
       "Connection: Close",
       "X-URL:
 /searchkw/xml/?_q%5B0%5D=%28suzuki%7Bw%3D1%7D+115%7Bw%3D1%7D%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D4&_q%5B1%5D=%28suzuki%7Bw%3D1%7D%29+OPT%28115%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D3&_q%5B2%5D=OPT%28suzuki+OR+115%29+-category%3Aall+country%3AIT+%28category%3Amiscellaneous%29+querywords%3E%3D2+querywords%3C%3D3&_q%5B3%5D=OPT%28suzuki+OR+115%29+-category%3Aall+country%3AES+%28category%3Amiscellaneous%29+querywords%3E%3D2&_vn%5B0%5D=defaultkw_new&_vn%5B1%5D=defaultkw_new&_vn%5B2%5D=defaultkw_new&_vn%5B3%5D=seo_keywords_round_new&_cc%5B0%5D=IT&_cc%5B1%5D=IT&_cc%5B2%5D=IT&_cc%5B3%5D=ES&_comp=gzip&_fmt=JSON&_hashq%5B1%5D=1&_hashq%5B2%5D=1&_hashq%5B3%5D=1&_hstart%5B2%5D=1&ttls=672",
   },
   worker = 0x7ec7616f8b90 {
     ws = 0x7ec7616f8d38 {
       id = "wrk",
       {s,f,r,e} = {0x7ec7616e6b20,0x7ec7616e6b20,(nil),+65536},
     },
     },
     vcl = {
       srcname = {
         "input",
         "Default",
       },
     },
 },

 }}}

-- 
Ticket URL: <http://www.varnish-cache.org/trac/ticket/994>
Varnish <http://varnish-cache.org/>
The Varnish HTTP Accelerator