[Varnish] #487: Varnish crashes on Panic message: Missing errorhandling code in WS_Reserve(), cache_ws.c line 159

[Varnish]

#487: Varnish crashes on Panic message: Missing errorhandling code in
WS_Reserve(), cache_ws.c line 159
----------------------+-----------------------------------------------------
 Reporter:  anders    |        Owner:  phk  
     Type:  defect    |       Status:  new  
 Priority:  high      |    Milestone:       
Component:  varnishd  |      Version:  trunk
 Severity:  normal    |   Resolution:       
 Keywords:            |  
----------------------+-----------------------------------------------------
Comment (by anders):

 I get this backtrace when hooking gdb to the child process:

 {{{
 Program received signal SIGABRT, Aborted.
 [Switching to Thread 0x806207c00 (LWP 100696)]
 0x0000000800d298bc in thr_kill () from /lib/libc.so.7
 (gdb) bt
 #0  0x0000000800d298bc in thr_kill () from /lib/libc.so.7
 #1  0x0000000800db8a0b in abort () from /lib/libc.so.7
 #2  0x000000000041ff92 in pan_ic (func=Variable "func" is not available.
 ) at cache_panic.c:317
 #3  0x000000000042a45e in WS_Reserve (ws=0x7ffffa1d1788, bytes=16384)
     at cache_ws.c:159
 #4  0x000000000041e55e in HTC_Init (htc=0x7ffffa1d1758, ws=0x7ffffa1d1788,
 fd=Variable "fd" is not available.
 )
     at cache_httpconn.c:92
 #5  0x0000000000418582 in FetchHdr (sp=0x806980008) at cache_fetch.c:369
 #6  0x0000000000410f9f in cnt_fetch (sp=0x806980008) at cache_center.c:403
 #7  0x0000000000412617 in CNT_Session (sp=0x806980008) at steps.h:41
 #8  0x0000000000421c21 in wrk_do_cnt_sess (w=0x7ffffa1d12c0, priv=Variable
 "priv" is not available.
 )
     at cache_pool.c:456
 #9  0x0000000000420f17 in wrk_thread_real (qp=0x800f277e0,
 shm_workspace=Variable "shm_workspace" is not available.
 )
     at cache_pool.c:351
 #10 0x0000000800ab0a27 in pthread_getprio () from /lib/libthr.so.3
 #11 0x0000000000000000 in ?? ()
 Error accessing memory address 0x7ffffa1d2000: Bad address.
 }}}

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Ticket URL: <http://varnish.projects.linpro.no/ticket/487#comment:1>
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