kernel panic

[Peter Avalos <pavalos@xxxxxxxxxxxx>]

Another page fault kernel panic, but it doesn't look the same as issue530.

The sources are from July 11:

DragonFly ylem.theshell.com 1.9.0-DEVELOPMENT DragonFly 1.9.0-DEVELOPMENT #26: Wed Jul 11 20:21:15 EDT 2007     root@ylem.theshell.com:/usr/obj/usr/src/sys/YLEM  i386

Fatal trap 12: page fault while in kernel mode
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
fault virtual address   = 0x8000008b
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0207a9b
stack pointer           = 0x10:0xda69b984
frame pointer           = 0x10:0xda69b984
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = Idle
current thread          = pri 12
 <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 00000000; cpuid = 0
boot() called on cpu#0
Uptime: 48d7h40m25s

dumping to dev #da/0x20001, blockno 378927
dump 2047 ......

(kgdb) bt
#0  dumpsys () at thread.h:83
#1  0xc0199802 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:371
#2  0xc0199b1f in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:796
#3  0xc02e1900 in trap_fatal (frame=0xda69b93c, eva=Variable "eva" is not available.
) at /usr/src/sys/platform/pc32/i386/trap.c:1097
#4  0xc02e1a58 in trap_pfault (frame=0xda69b93c, usermode=0, eva=2147483787) at /usr/src/sys/platform/pc32/i386/trap.c:998
#5  0xc02e2130 in trap (frame=0xda69b93c) at /usr/src/sys/platform/pc32/i386/trap.c:681
#6  0xc02ce146 in calltrap () at /usr/src/sys/platform/pc32/i386/exception.s:783
#7  0xc0207a9b in in_localaddr (in={s_addr = 997540561}) at /usr/src/sys/netinet/in.c:97
#8  0xc0212c98 in tcp_mss (tp=0xdadd6220, offer=Variable "offer" is not available.
) at /usr/src/sys/netinet/tcp_input.c:2989
#9  0xc021a903 in syncache_socket (sc=0xdb465d20, lso=0xda8372e0) at /usr/src/sys/netinet/tcp_syncache.c:786
#10 0xc021b489 in syncache_expand (inc=0xda69bb20, th=0xf3a53824, sop=0xda69bbf0, m=0xec77ea00) at /usr/src/sys/netinet/tcp_syncache.c:845
#11 0xc0214188 in tcp_input (m=0xec77ea00) at /usr/src/sys/netinet/tcp_input.c:873
#12 0xc020d33e in transport_processing_oncpu (m=0xec77ea00, hlen=20, ip=Variable "ip" is not available.
) at /usr/src/sys/netinet/ip_input.c:404
#13 0xc020f30a in ip_input (m=0xec77ea00) at /usr/src/sys/netinet/ip_input.c:1101
#14 0xc020f3fc in ip_input_handler (msg0=0xec77ea14) at /usr/src/sys/netinet/ip_input.c:434
#15 0xc0219267 in tcpmsg_service_loop (dummy=0x0) at /usr/src/sys/netinet/tcp_subr.c:385
#16 0xc01a13e7 in lwkt_deschedule_self (td=Variable "td" is not available.
) at /usr/src/sys/kern/lwkt_thread.c:214
Previous frame inner to this frame (corrupt stack?)

vmcore is being uploaded to leaf now in ~pavalos/crash/3/.  Should take
another 2 hours or so.  Any ideas?

--Peter

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