[Varnish] #1186: Varnish crashing with "Assert error in hcb_insert(), hash_critbit.c line 217"

[Varnish]

#1186: Varnish crashing with "Assert error in hcb_insert(), hash_critbit.c line
217"
-------------------+--------------------
 Reporter:  flies  |       Type:  defect
   Status:  new    |   Priority:  normal
Milestone:         |  Component:  build
  Version:  2.1.5  |   Severity:  normal
 Keywords:         |
-------------------+--------------------
 Thank you in advance for your help. Will provide VCL if needed.



 Varnish version:
 {{{
 # /usr/local/sbin/varnishd -V
 varnishd (varnish-2.1.5 SVN 0843d7a)
 Copyright (c) 2006-2009 Linpro AS / Verdens Gang AS
 }}}


 Syslog output:
 {{{
 Aug 17 02:59:26 wpf1 varnishd[5451]: Child (4548) Panic message: Assert
 error in hcb_insert(), hash_critbit.c line 217:
   Condition((y)->magic == 0x125c4bd2) not true.
 errno = 115 (Operation now in progress)
 thread = (cache-worker)
 ident = Linux,2.6.36-g5-po,x86_64,-sfile,-hcritbit,epoll
 Backtrace:
   0x424608: /usr/sbin/varnishd() [0x424608]
   0x430d25: /usr/sbin/varnishd() [0x430d25]
   0x43123b: /usr/sbin/varnishd() [0x43123b]
   0x41e689: /usr/sbin/varnishd(HSH_Lookup+0x6a9) [0x41e689]
   0x412c9b: /usr/sbin/varnishd() [0x412c9b]
   0x4151ad: /usr/sbin/varnishd(CNT_Session+0x38d) [0x4151ad]
   0x426a48: /usr/sbin/varnishd() [0x426a48]
   0x425d23: /usr/sbin/varnishd() [0x425d23]
   0x7fd8ca4ca8ca: /lib/libpthread.so.0(+0x68ca) [0x7fd8ca4ca8ca]
   0x7fd8c9d97b6d: /lib/libc.so.6(clone+0x6d) [0x7fd8c9d97b6d]
 sp = 0x7fd7a33ac008 {
   fd = 37, id = 37, xid = 753325169,
   client = 89.72.18.179:57412,
   step = STP_LOOKUP,
   handling = hash,
   restarts = 0, esis = 0
   ws = 0x7fd7a33ac078 {
     id = "sess",
     {s,f,r,e} = {0x7fd7a33accd0,+2776,(nil),+65536},
   },
   http[req] = {
     ws = 0x7fd7a33ac078[sess]
       "GET",
       "/",
       "HTTP/1.1",
       "User-Agent: Opera/9.80 (Windows NT 6.1; U; pl) Presto/2.10.289
 Version/12.00",
       "Host: margarytka-kulinarnie.blog.onet.pl",
       "Accept: text/html, application/xml;q=0.9, application/xhtml+xml,
 image/png, image/webp, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1",
       "Accept-Language: pl-PL,pl;q=0.9,en;q=0.8",
       "Referer:
 http://www.google.pl/url?sa=t&rct=j&q=blogi%20kulinarne&source=web&cd=9&ved=0CFsQFjAI&url=http%3A%2F
 %2Fmargarytka-
 kulinarnie.blog.onet.pl%2F&ei=25YtUKPmE63N4QTfh4Fw&usg=AFQjCNGCyrSeixJ2_OapEckx2fOga0AV2A",
       "Connection: Keep-Alive",
       "X-Forwarded-For: 89.72.18.179",
       "X-User-Host: margarytka-kulinarnie.blog.onet.pl",
       "cookie: onet_ubi=HIDDEN; onetzuo_ticket=HIDDEN
 }}}

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1186>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator