[Varnish] #1740: Condition((ObjGetSpace(wrk, req->objcore, &sz, &ptr)) != 0) not true.

[Varnish]

#1740: Condition((ObjGetSpace(wrk, req->objcore, &sz, &ptr)) != 0) not true.
---------------------------------+--------------------
 Reporter:  zaterio@…            |       Type:  defect
   Status:  new                  |   Priority:  normal
Milestone:  Varnish 4.0 release  |  Component:  build
  Version:  trunk                |   Severity:  normal
 Keywords:                       |
---------------------------------+--------------------
 In order To limit the use of transient memory, I change the following
 settings:

 {{{
 ...
  -s malloc,13G \
 ...
 }}}

 to:

 {{{
 ...
  -s malloc,11G \
  -s Transient=malloc,2G \
 ...
 }}}

 but this panic appears: (so far only it occurs for SYNTH responses.)

 {{{
 varnishadm panic.show
 Last panic at: Mon, 25 May 2015 12:17:24 GMT
 Assert error in cnt_synth(), cache/cache_req_fsm.c line 279:
   Condition((ObjGetSpace(wrk, req->objcore, &sz, &ptr)) != 0) not true.
 thread = (cache-worker)
 version = varnish-trunk revision e05ac94
 ident =
 Linux,3.2.0-4-amd64,x86_64,-junix,-smalloc,-smalloc,-hclassic,epoll
 Backtrace:
   0x4337b4: pan_ic+0x134
   0x4396be: CNT_Request+0x1efe
   0x44d153: HTTP1_Session+0x133
   0x43b1b1: SES_Proto_Req+0x61
   0x435c48: Pool_Work_Thread+0x3c8
   0x448a93: WRK_Thread+0x103
   0x43503b: pool_thread+0x2b
   0x7f4ba6f5fb50: libpthread.so.0(+0x6b50) [0x7f4ba6f5fb50]
   0x7f4ba6ca995d: libc.so.6(clone+0x6d) [0x7f4ba6ca995d]
 req = 0x7f4aeb7e1020 {
   sp = 0x7f4b77c06020, vxid = 30872635,  step = R_STP_SYNTH,
   req_body = R_BODY_NONE,
   err_code = 701, err_reason = ,
   restarts = 0, esi_level = 0,
   sp = 0x7f4b77c06020 {
     fd = 53, vxid = 31296076,
     client = 190.22.159.239 52084,
     step = S_STP_H1PROC,
   },
   worker = 0x7f4aae3c2c30 {
     stack = {0x7f4aae3c3000 -> 0x7f4aae3b7000}
     ws = 0x7f4aae3c2e38 {
       id = "wrk",
       {s,f,r,e} = {0x7f4aae3c2420,0x7f4aae3c2420,(nil),+2040},
     },
     VCL::method = SYNTH,
     VCL::return = deliver,
     VCL::methods = {RECV, HASH, SYNTH},
   },
   ws = 0x7f4aeb7e1218 {
     id = "req",
     {s,f,r,e} = {0x7f4aeb7e3020,+592,(nil),+57304},
   },
   http[req] = {
     ws = 0x7f4aeb7e1218[req]
       "GET",

       "/crossdomain.xml",
       "HTTP/1.1",
       "Host: live.hls.http.13.ztreaming.com",
       "Connection: keep-alive",
       "X-Requested-With: ShockwaveFlash/17.0.0.188",
       "Accept: */*",
       "Referer:
 http://tvdb.ddns.net/3c6237bf7c6d0a06234cc090c558facc.html",
       "Accept-Encoding: gzip, deflate, sdch",
       "Accept-Language: es-ES,es;q=0.8",
       "X-Forwarded-For: 190.22.159.239",
   },
   http[resp] = {
     ws = 0x7f4aeb7e1218[req]
       "HTTP/1.1",
       "200",
       "OK",
       "Date: Mon, 25 May 2015 12:17:22 GMT",
       "Server: telsanti01",
       "Content-Type: application/xml",
   },
   vcl = {
     srcname = {
       "input",
       "Builtin",
       "/etc/varnish/include.vcl",
       "/etc/varnish/backends.vcl",
       "/etc/varnish/master.vcl",
     },
   },
   objcore (REQ) = 0x7f4b09bfac00 {
     refcnt = 1
     flags = 0x102
     objhead = 0x7f4ba632a560
     stevedore = 0x7f4ba60e2240 (malloc Transient)
   }
   flags = {
     wantbody,
   }
 },
 }}}


 {{{
 varnishadm panic.show
 Last panic at: Mon, 25 May 2015 12:27:45 GMT
 Assert error in cnt_synth(), cache/cache_req_fsm.c line 279:
   Condition((ObjGetSpace(wrk, req->objcore, &sz, &ptr)) != 0) not true.
 thread = (cache-worker)
 version = varnish-trunk revision e05ac94
 ident =
 Linux,3.2.0-4-amd64,x86_64,-junix,-smalloc,-smalloc,-hclassic,epoll
 Backtrace:
   0x4337b4: pan_ic+0x134
   0x4396be: CNT_Request+0x1efe
   0x44d153: HTTP1_Session+0x133
   0x43b1b1: SES_Proto_Req+0x61
   0x435c48: Pool_Work_Thread+0x3c8
   0x448a93: WRK_Thread+0x103
   0x43503b: pool_thread+0x2b
   0x7f4ba6f5fb50: libpthread.so.0(+0x6b50) [0x7f4ba6f5fb50]
   0x7f4ba6ca995d: libc.so.6(clone+0x6d) [0x7f4ba6ca995d]
 req = 0x7f4b90cf6020 {
   sp = 0x7f4a24106020, vxid = 16023612,  step = R_STP_SYNTH,
   req_body = R_BODY_NONE,
   err_code = 701, err_reason = ,
   restarts = 0, esi_level = 0,
   sp = 0x7f4a24106020 {
     fd = 198, vxid = 16023611,
     client = 190.21.126.93 49831,
     step = S_STP_H1PROC,
   },
   worker = 0x7f49d51e2c30 {
     stack = {0x7f49d51e3000 -> 0x7f49d51d7000}
     ws = 0x7f49d51e2e38 {
       id = "wrk",
       {s,f,r,e} = {0x7f49d51e2420,0x7f49d51e2420,(nil),+2040},
     },
     VCL::method = SYNTH,
     VCL::return = deliver,
     VCL::methods = {RECV, HASH, SYNTH},
   },
   ws = 0x7f4b90cf6218 {
     id = "req",
     {s,f,r,e} = {0x7f4b90cf8020,+584,(nil),+57304},
   },
   http[req] = {
     ws = 0x7f4b90cf6218[req]
       "GET",
       "/crossdomain.xml",
       "HTTP/1.1",
       "Host: live.hls.http.chv.ztreaming.com",
       "Accept:
 text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
       "Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3",
       "Accept-Encoding: gzip, deflate",
       "Referer:
 http://estaticos.chilevision.cl/player/jwplayer6.12/jwplayer.flash.swf",
       "Connection: keep-alive",
       "X-Forwarded-For: 190.21.126.93",
   },
   http[resp] = {
     ws = 0x7f4b90cf6218[req]
       "HTTP/1.1",
       "200",
       "OK",
       "Date: Mon, 25 May 2015 12:27:44 GMT",
       "Server: telsanti01",
       "Content-Type: application/xml",
   },
   vcl = {
     srcname = {
       "input",
       "Builtin",
       "/etc/varnish/include.vcl",
       "/etc/varnish/backends.vcl",
       "/etc/varnish/master.vcl",
     },
   },
   objcore (REQ) = 0x7f4a3b603ac0 {
     refcnt = 1
     flags = 0x102
     objhead = 0x7f4ba6378560
     stevedore = 0x7f4ba60e2240 (malloc Transient)
   }
   flags = {
     wantbody,
   }
 },
 }}}

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1740>
Varnish <https://varnish-cache.org/>
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