I finally(!) got around to enabling crash dumps on the primary machine here at the house ... and managed to make use of it (unfortunately).
I've copied the relevant files (both those from /var/crash and dmesg.boot) so they should be visibale at <http://www.catwhisker.org/~david/FreeBSD/panic_24Dec2012/> (though only the dmesg.boot, core.text.0, & info.0 files should be fetchable for now). [I'll make the vmcore.0 available to individuals who wish to work on the problem; please contact me to arrange this.] Here's a bit of information excerpted from core.text.0: Mon Dec 24 11:16:04 PST 2012 FreeBSD albert.catwhisker.org 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #434 244582M: Sat Dec 22 05:06:29 PST 2012 r...@freebeast.catwhisker.org:/usr/obj/usr/src/sys/ALBERT i386 Note that while the version string says "244582M": * Userland was at r244608. * The "Modification" was merely a change to src/sys/newvers.sh to re-factor the extraction of the version string. panic: page fault Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x34 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0ad475c stack pointer = 0x28:0xc6fba9d8 frame pointer = 0x28:0xc6fbaa18 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 11 (idle: cpu0) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: db_trace_self_wrapper(c0ffbab8,46,1,ca931e80,0,...) at 0xc051ef76 = db_trace_self_wrapper+0x36/frame 0xc6fba740 kdb_backtrace(c1033ff1,0,c0e75cc4,c6fba7ec,c71f08d0,...) at 0xc0afc400 = kdb_backtrace+0x30/frame 0xc6fba7a0 panic(c0e75cc4,c1034ddb,c71f0a84,1,1,...) at 0xc0ac763c = panic+0x1bc/frame 0xc6fba7e0 trap_fatal(28,7fffffff,3,0,28,...) at 0xc0e35560 = trap_fatal+0x340/frame 0xc6fba828 trap_pfault(34,c,1,c11a68b0,c6fba940,...) at 0xc0e358cb = trap_pfault+0x35b/frame 0xc6fba8a0 trap(c6fba998) at 0xc0e34e13 = trap+0x443/frame 0xc6fba98c calltrap() at 0xc0e1e86c = calltrap+0x6/frame 0xc6fba98c --- trap 0xc, eip = 0xc0ad475c, esp = 0xc6fba9d8, ebp = 0xc6fbaa18 --- tc_windup(1,0,c0ff3ba6,21c,0,...) at 0xc0ad475c = tc_windup+0x1c/frame 0xc6fbaa18 hardclock_cnt(1,0,0,3,0,...) at 0xc0a77e39 = hardclock_cnt+0x2e9/frame 0xc6fbaa68 handleevents(c6fbaaf8,2,46,c71f08d0,c6fbaae4,...) at 0xc0e3c534 = handleevents+0x184/frame 0xc6fbaac0 timercb(c7564064,0,c76a82f0,c6fbab58,c0a99a0e,...) at 0xc0e3d1a1 = timercb+0x281/frame 0xc6fbab14 hpet_intr_single(c7564064,c7569780,0,c6fbabbc,c6fbab78,...) at 0xc053a345 = hpet_intr_single+0x195/frame 0xc6fbab40 hpet_intr(c7564000,0,c71f08d0,14,c723b710,...) at 0xc053a3cf = hpet_intr+0x6f/frame 0xc6fbab58 intr_event_handle(c723c280,c6fbabbc,c6fbab94,0,c7182600,...) at 0xc0a99c5c = intr_event_handle+0x7c/frame 0xc6fbab78 intr_execute_handlers(c723b710,c6fbabbc,0) at 0xc0e4c552 = intr_execute_handlers+0x42/frame 0xc6fbab98 lapic_handle_intr(33,c6fbabbc) at 0xc0e4f50d = lapic_handle_intr+0x3d/frame 0xc6fbabac Xapic_isr1() at 0xc0e1ec35 = Xapic_isr1+0x35/frame 0xc6fbabac --- interrupt, eip = 0xc0e1a202, esp = 0xc6fbabfc, ebp = 0xc6fbac3c --- acpi_cpu_c1(0,c6fbac58,c0e250a6,0,c1198018,...) at 0xc0e1a202 = acpi_cpu_c1+0x2/frame 0xc6fbac3c cpu_idle_acpi(0,c1198018,c6fbacd0,c0aee519,0,...) at 0xc0e24fff = cpu_idle_acpi+0x2f/frame 0xc6fbac48 cpu_idle(0,2,c0ffa49a,a36,c71f08d0,...) at 0xc0e250a6 = cpu_idle+0x96/frame 0xc6fbac58 sched_idletd(0,c6fbad08,0,0,c0aee250,...) at 0xc0aee519 = sched_idletd+0x2c9/frame 0xc6fbacd0 fork_exit(c0aee250,0,c6fbad08) at 0xc0a977c7 = fork_exit+0x67/frame 0xc6fbacf4 fork_trampoline() at 0xc0e1e8e4 = fork_trampoline+0x8/frame 0xc6fbacf4 --- trap 0, eip = 0, esp = 0xc6fbad40, ebp = 0 --- Uptime: 7h11m46s Physical memory: 3045 MB #0 doadump (textdump=<value optimized out>) at pcpu.h:249 249 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:249 #1 0xc0ac71fa in kern_reboot (howto=Unhandled dwarf expression opcode 0xc0 ) at /usr/src/sys/kern/kern_shutdown.c:448 #2 0xc0ac7688 in panic (fmt=Unhandled dwarf expression opcode 0xc0 ) at /usr/src/sys/kern/kern_shutdown.c:636 #3 0xc0e35560 in trap_fatal (frame=<value optimized out>, eva=<value optimized out>) at /usr/src/sys/i386/i386/trap.c:1043 #4 0xc0e358cb in trap_pfault (frame=<value optimized out>, usermode=Unhandled dwarf expression opcode 0xc3 ) at /usr/src/sys/i386/i386/trap.c:858 #5 0xc0e34e13 in trap (frame=<value optimized out>) at /usr/src/sys/i386/i386/trap.c:555 #6 0xc0e1e86c in calltrap () at /tmp/exception-SmXQMs.s:94 #7 0xc0ad475c in tc_windup () at /usr/src/sys/kern/kern_tc.c:450 #8 0xc0a77e39 in hardclock_cnt (usermode=<value optimized out>) at /usr/src/sys/kern/kern_clock.c:556 #9 0xc0e3c534 in handleevents (now=<value optimized out>, fake=<value optimized out>) at /usr/src/sys/kern/kern_clocksource.c:215 #10 0xc0e3d1a1 in timercb (et=Unhandled dwarf expression opcode 0xc0 ) at /usr/src/sys/kern/kern_clocksource.c:390 #11 0xc053a345 in hpet_intr_single (arg=<value optimized out>) at /usr/src/sys/dev/acpica/acpi_hpet.c:260 #12 0xc053a3cf in hpet_intr (arg=<value optimized out>) at /usr/src/sys/dev/acpica/acpi_hpet.c:278 #13 0xc0a99c5c in intr_event_handle (ie=Unhandled dwarf expression opcode 0xa1 ) at /usr/src/sys/kern/kern_intr.c:1435 #14 0xc0e4c552 in intr_execute_handlers (isrc=<value optimized out>, frame=<value optimized out>) at /usr/src/sys/x86/x86/intr_machdep.c:269 #15 0xc0e4f50d in lapic_handle_intr (vector=-956585056, frame=0xc6fbaba0) at /usr/src/sys/x86/x86/local_apic.c:780 #16 0xc0e1ec35 in Xapic_isr1 () at /tmp/exception-SmXQMs.s:214 #17 0xc0e1a202 in acpi_cpu_c1 () at /usr/src/sys/i386/acpica/acpi_machdep.c:114 Previous frame inner to this frame (corrupt stack?) Any suggestions? At this point, I don't really know enough to file a PR. Peace, david -- David H. Wolfskill da...@catwhisker.org Taliban: Evil men with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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