[Varnish] #1637: Assert error in VFP_Fetch_Body()

[Varnish]

#1637: Assert error in VFP_Fetch_Body()
--------------------------+--------------------
 Reporter:  llavaud       |       Owner:
     Type:  defect        |      Status:  new
 Priority:  normal        |   Milestone:
Component:  varnishd      |     Version:  4.0.2
 Severity:  major         |  Resolution:
 Keywords:  Assert error  |
--------------------------+--------------------
Description changed by fgsch:

Old description:

> Hello,
>
> I am using varnish 4.0.2 on a debian wheezy server.
>
> The varnish child regularly died with the following error log:
>
> Nov 27 16:03:26 webcache02 varnishd[27811]: Child (27830) Panic
> message:#012Assert error in VFP_Fetch_Body(), cache/cache_fetch_proc.c
> line 216:#012  Condition((bo->failed) == 0) not true.#012thread = (cache-
> worker)#012ident =
> Linux,3.2.0-4-amd64,x86_64,-sfile,-smalloc,-hcritbit,epoll#012Backtrace:#012
> 0x4347c5: /usr/sbin/varnishd() [0x4347c5]#012  0x42432a:
> /usr/sbin/varnishd(VFP_Fetch_Body+0x2ba) [0x42432a]#012  0x421569:
> /usr/sbin/varnishd() [0x421569]#012  0x4376b3:
> /usr/sbin/varnishd(Pool_Work_Thread+0x373) [0x4376b3]#012  0x44a98d:
> /usr/sbin/varnishd() [0x44a98d]#012  0x7fa6735ebb50: /lib/x86_64-linux-
> gnu/libpthread.so.0(+0x6b50) [0x7fa6735ebb50]#012  0x7fa6733357bd:
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fa6733357bd]#012  busyobj
> = 0x7fa672b02020 {#012    ws = 0x7fa672b020e0 {#012      id = "bo",#012
> {s,f,r,e} = {0x7fa672b04008,+1920,(nil),+253976},#012    },#012  refcnt =
> 2#012  retries = 0#012  failed = 1#012  state = 1#012    is_do_esi#012
> is_do_gzip#012    is_is_gunzip#012    bodystatus = 3 (length),#012
> },#012    http[bereq] = {#012      ws = 0x7fa672b020e0[bo]#012
> "GET",#012        "/myuri",#012        "HTTP/1.1",#012        "User-
> Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101
> Firefox/33.0",#012        "Accept:
> image/png,image/*;q=0.8,*/*;q=0.5",#012        "Accept-Language: fr,fr-
> fr;q=0.8,en-us;q=0.5,en;q=0.3",#012        "Referer:
> http://myhost/myuri",#012        "Host: myhost",#012        "Surrogate-
> Capability: abc=ESI/1.0",#012        "X-Forwarded-For: xxx, xxx",#012
> "X-Varnish: 852351",#012    },#012    http[beresp] = {#012      ws =
> 0x7fa672b020e0[bo]#012        "HTTP/1.1",#012        "301",#012
> "Moved Permanently",#012        "Date: Thu, 27 Nov 2014 15:03:25
> GMT",#012        "Server: Apache",#012

New description:

 Hello,

 I am using varnish 4.0.2 on a debian wheezy server.

 The varnish child regularly died with the following error log:

 {{{
 Nov 27 16:03:26 webcache02 varnishd[27811]: Child (27830) Panic message:
 Assert error in VFP_Fetch_Body(), cache/cache_fetch_proc.c line 216:
   Condition((bo->failed) == 0) not true.
 thread = (cache-worker)
 ident = Linux,3.2.0-4-amd64,x86_64,-sfile,-smalloc,-hcritbit,epoll
 Backtrace:
   0x4347c5: /usr/sbin/varnishd() [0x4347c5]
   0x42432a: /usr/sbin/varnishd(VFP_Fetch_Body+0x2ba) [0x42432a]
   0x421569: /usr/sbin/varnishd() [0x421569]
   0x4376b3: /usr/sbin/varnishd(Pool_Work_Thread+0x373) [0x4376b3]
   0x44a98d: /usr/sbin/varnishd() [0x44a98d]
   0x7fa6735ebb50: /lib/x86_64-linux-gnu/libpthread.so.0(+0x6b50)
 [0x7fa6735ebb50]
   0x7fa6733357bd: /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
 [0x7fa6733357bd]
   busyobj = 0x7fa672b02020 {
     ws = 0x7fa672b020e0 {
       id = "bo",
       {s,f,r,e} = {0x7fa672b04008,+1920,(nil),+253976},
     },
   refcnt = 2
   retries = 0
   failed = 1
   state = 1
     is_do_esi
     is_do_gzip
     is_is_gunzip
     bodystatus = 3 (length),
     },
     http[bereq] = {
       ws = 0x7fa672b020e0[bo]
         "GET",
         "/myuri",
         "HTTP/1.1",
         "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0)
 Gecko/20100101 Firefox/33.0",
         "Accept: image/png,image/*;q=0.8,*/*;q=0.5",
         "Accept-Language: fr,fr-fr;q=0.8,en-us;q=0.5,en;q=0.3",
         "Referer: http://myhost/myuri",
         "Host: myhost",
         "Surrogate-Capability: abc=ESI/1.0",
         "X-Forwarded-For: xxx, xxx",
         "X-Varnish: 852351",
     },
     http[beresp] = {
       ws = 0x7fa672b020e0[bo]
         "HTTP/1.1",
         "301",
         "Moved Permanently",
         "Date: Thu, 27 Nov 2014 15:03:25 GMT",
         "Server: Apache",
 }}}

--

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1637#comment:1>
Varnish <https://varnish-cache.org/>
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