crash on 8.2-RELEASE amd64, high-traffic squid server

[Doug Barton]

Howdy,

I have some high-traffic squid servers, most of which are running a 
flavor of RELENG_7 very successfully, but one that I've been evaluating 
8.x on has had a lot of problems. Most recently we had the crash below 
twice in the last 2 weeks. Same exact backtrace. Any suggestions on 
where to look would be appreciated.


Thanks,

Doug

#0  doadump () at pcpu.h:224
224	pcpu.h: No such file or directory.
 	in pcpu.h
(kgdb) #0  doadump () at pcpu.h:224
#1  0xffffffff803ec4be in boot (howto=260)
     at /usr/src/sys/kern/kern_shutdown.c:419
#2  0xffffffff803ec8f1 in panic (fmt=Variable "fmt" is not available.
)
     at /usr/src/sys/kern/kern_shutdown.c:592
#3  0xffffffff8069a4d0 in trap_fatal (frame=0x1c, eva=Variable "eva" is not available.
)
     at /usr/src/sys/amd64/amd64/trap.c:783
#4  0xffffffff8069aab9 in trap (frame=0xffffff800012f650)
     at /usr/src/sys/amd64/amd64/trap.c:592
#5  0xffffffff80682e84 in calltrap ()
     at /usr/src/sys/amd64/amd64/exception.S:224
#6  0xffffffff80698896 in bcopy ()
     at /usr/src/sys/amd64/amd64/support.S:124
#7  0xffffffff8044df61 in sbcompress (sb=0xffffff01d98945e0,
     m=0xffffff010b815300, n=0xffffff006baa3700)
     at /usr/src/sys/kern/uipc_sockbuf.c:779
#8  0xffffffff8044e1e6 in sbappendstream_locked (sb=0xffffff01d98945e0,
     m=0xffffff010b815300) at /usr/src/sys/kern/uipc_sockbuf.c:534
#9  0xffffffff80527530 in tcp_do_segment (m=0xffffff010b815300, th=Variable "th" is not available.
)
     at /usr/src/sys/netinet/tcp_input.c:2588
#10 0xffffffff80528b4b in tcp_input (m=0xffffff010b815300, off0=Variable "off0" is not available.
)
     at /usr/src/sys/netinet/tcp_input.c:1029
#11 0xffffffff804c3b2c in ip_input (m=0xffffff010b815300)
     at /usr/src/sys/netinet/ip_input.c:787
#12 0xffffffff804a631e in netisr_dispatch_src (proto=1, source=Variable "source" is not available.
)
     at /usr/src/sys/net/netisr.c:917
#13 0xffffffff8049d73d in ether_demux (ifp=0xffffff0002d30000,
     m=0xffffff010b815300) at /usr/src/sys/net/if_ethersubr.c:894
#14 0xffffffff8049db2d in ether_input (ifp=0xffffff0002d30000,
     m=0xffffff010b815300) at /usr/src/sys/net/if_ethersubr.c:753
#15 0xffffffff8027c18a in em_rxeof (rxr=0xffffff0002d7c600, count=98,
     done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4293
#16 0xffffffff8027c5a8 in em_handle_que (context=Variable "context" is not available.
)
     at /usr/src/sys/dev/e1000/if_em.c:1482
#17 0xffffffff80429ab5 in taskqueue_run_locked (queue=0xffffff0002d8d800)
     at /usr/src/sys/kern/subr_taskqueue.c:250
#18 0xffffffff80429c4e in taskqueue_thread_loop (arg=Variable "arg" is not available.
)
     at /usr/src/sys/kern/subr_taskqueue.c:387
#19 0xffffffff803c30f8 in fork_exit (
     callout=0xffffffff80429c00 <taskqueue_thread_loop>,
     arg=0xffffff80005a8748, frame=0xffffff800012fc40)
     at /usr/src/sys/kern/kern_fork.c:845
#20 0xffffffff8068334e in fork_trampoline ()
     at /usr/src/sys/amd64/amd64/exception.S:565
#21 0x0000000000000000 in ?? ()
#22 0x0000000000000000 in ?? ()
#23 0x0000000000000000 in ?? ()
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
#27 0x0000000000000000 in ?? ()
#28 0x0000000000000000 in ?? ()
#29 0x0000000000000000 in ?? ()
#30 0x0000000000000000 in ?? ()
#31 0x0000000000000000 in ?? ()
#32 0x0000000000000000 in ?? ()
#33 0x0000000000000000 in ?? ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000000 in ?? ()
#40 0x0000000000000000 in ?? ()
#41 0x0000000000000000 in ?? ()
#42 0x0000000000000000 in ?? ()
#43 0x0000000000000000 in ?? ()
#44 0x0000000000000000 in ?? ()
#45 0xffffffff8095ac00 in affinity ()
#46 0x0000000000000000 in ?? ()
#47 0x0000000000000000 in ?? ()
#48 0xffffff0002d2d8c0 in ?? ()
#49 0xffffff800012f320 in ?? ()
#50 0xffffff800012f2c8 in ?? ()
#51 0xffffff0002c59000 in ?? ()
#52 0xffffffff80411db9 in sched_switch (td=0xffffffff80429c00,
     newtd=0xffffff80005a8748, flags=Variable "flags" is not available.
)
     at /usr/src/sys/kern/sched_ule.c:1852
Previous frame inner to this frame (corrupt stack?)
(kgdb)


-- 

 	Nothin' ever doesn't change, but nothin' changes much.
 			-- OK Go

 	Breadth of IT experience, and depth of knowledge in the DNS.
 	Yours for the right price.  :)  http://SupersetSolutions.com/