# cat /var/crash/info.0 Dump header from device /dev/da0s1b Architecture: i386 Architecture Version: 2 Dump Length: 1073283072B (1023 MB) Blocksize: 512 Dumptime: Fri Feb 10 18:28:00 2006 Hostname: foo.example.com Magic: FreeBSD Kernel Dump Version String: FreeBSD 6.0-RELEASE #0: Thu Nov 10 16:01:36 CET 2005 root@foo.example.com:/usr/src/sys/i386/compile/MYKERNEL02 Panic String: page fault Dump Parity: 819673434 Bounds: 0 Dump Status: good # kgdb /usr/src/sys/i386/compile/MYKERNEL02/kernel.debug /var/crash/vmcore.0 | tee /tmp/kgdb.out GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-marcel-freebsd". Unread portion of the kernel message buffer: #0 doadump () at pcpu.h:165 165 __asm __volatile("movl %%fs:0,%0" : "=r" (td)); (kgdb) backtrace #0 doadump () at pcpu.h:165 #1 0xc0639052 in boot (howto=260) at ../../../kern/kern_shutdown.c:399 #2 0xc06392e8 in panic (fmt=0xc085fb0b "%s") at ../../../kern/kern_shutdown.c:555 #3 0xc08181d0 in trap_fatal (frame=0xe35ebbe8, eva=36) at ../../../i386/i386/trap.c:831 #4 0xc0817972 in trap (frame= {tf_fs = -1030029304, tf_es = 40, tf_ds = -480378840, tf_edi = 22, tf_esi = -979624960, tf_ebp = -480330692, tf_isp = -480330732, tf_ebx = -1037494016, tf_edx = -979624960, tf_ecx = -1064054880, tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1067087720, tf_cs = 32, tf_eflags = 65666, tf_esp = 52, tf_ss = 0}) at ../../../i386/i386/trap.c:267 #5 0xc080736a in calltrap () at ../../../i386/i386/exception.s:139 #6 0xc0658898 in propagate_priority (td=0xc59c1c00) at ../../../kern/subr_turnstile.c:233 #7 0xc0659046 in turnstile_wait (lock=0xc093cfa0, owner=0xc59c1c00) at ../../../kern/subr_turnstile.c:628 #8 0xc06308bc in _mtx_lock_sleep (m=0xc093cfa0, tid=3257473280, opts=0, file=0x0, line=0) at ../../../kern/kern_mutex.c:553 #9 0xc06d3670 in dummynet (unused=0x0) at ../../../netinet/ip_dummynet.c:785 #10 0xc06450d7 in softclock (dummy=0x0) at ../../../kern/kern_timeout.c:290 #11 0xc0624c49 in ithread_loop (arg=0xc22fa280) at ../../../kern/kern_intr.c:547 #12 0xc0623ed0 in fork_exit (callout=0xc0624af0 , arg=0xc22fa280, frame=0xe35ebd38) at ../../../kern/kern_fork.c:789 #13 0xc08073cc in fork_trampoline () at ../../../i386/i386/exception.s:208 (kgdb)