GENERIC HEAD from Oct 5 06:58 UTC + Tor's snapshot.diff4, vmcore.461
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 7.0-CURRENT #1: Wed Oct 5 11:55:23 CEST 2005
pho@current.osted.lan:/usr/src/sys/i386/compile/PHO
WARNING: WITNESS option enabled, expect reduced performance.
ACPI APIC Table: <A M I OEMAPIC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Celeron(R) CPU 1.80GHz (1799.15-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf13 Stepping = 3
Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
real memory = 267583488 (255 MB)
avail memory = 251998208 (240 MB)
:
Trying to mount root from ufs:/dev/ad0s1a
rl0: link state changed to DOWN
Limiting icmp unreach response from 5274 to 200 packets/sec
Limiting icmp unreach response from 9911 to 200 packets/sec
Limiting icmp unreach response from 7483 to 200 packets/sec
:
Limiting icmp unreach response from 15217 to 200 packets/sec
Limiting icmp unreach response from 12222 to 200 packets/sec
panic: mutex Giant not owned at ../../../dev/md/md.c:480
cpuid = 0
KDB: enter: panic
[thread pid 2836 tid 100233 ]
Stopped at kdb_enter+0x2b: nop
db> where
Tracing pid 2836 tid 100233 td 0xc3084300
kdb_enter(c08650f1) at kdb_enter+0x2b
panic(c086463f,c0878b74,c084a33e,1e0,c1bce318) at panic+0x14b
_mtx_assert(c0962760,1,c084a33e,1e0,c0868b34) at _mtx_assert+0x67
mdstart_vnode(c1f2e000,c1bce318,c1f2e020,0,c054e71c) at mdstart_vnode+0x25
md_kthread(c1f2e000,cf5b8d38,c1f2e000,c054e71c,0) at md_kthread+0x16c
fork_exit(c054e71c,c1f2e000,cf5b8d38) at fork_exit+0xa0
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xcf5b8d6c, ebp = 0 ---
db> ps
pid proc uid ppid pgrp flag stat wmesg wchan cmd
2836 c3086418 0 0 0 0000204 [CPU 0] md1
2835 c2660830 0 2831 2831 0004002 [SLPQ g_waitidle 0xc092c380][SLP] mdconfig
2831 c265e624 0 970 2831 0004002 [SLPQ wait 0xc265e624][SLP] sh
2727 c1cc0000 1001 2630 838 0000002 [RUNQ] mkdir
2682 c1c38830 1001 2630 838 0000002 [RUNQ] mkdir
2630 c1c3c20c 1001 2629 838 0000002 [SLPQ wait 0xc1c3c20c][SLP] mkdir
2629 c1c57418 1001 842 838 0004002 [SLPQ wait 0xc1c57418][SLP] mkdir
970 c265ec48 0 967 970 0004002 [SLPQ wait 0xc265ec48][SLP] bash
967 c2660418 0 966 967 0004002 [SLPQ pause 0xc266044c][SLP] csh
966 c1cbb418 1001 950 966 0004102 [SLPQ wait 0xc1cbb418][SLP] su
965 c1cbb000 1001 959 965 0004002 [SLPQ select 0xc09b0324][SLP] top
959 c1cbba3c 1001 958 959 0004002 [SLPQ wait 0xc1cbba3c][SLP] bash
958 c1cbb20c 1001 956 956 0000100 [SLPQ select 0xc09b0324][SLP] sshd
956 c1c9dc48 0 428 956 0004100 [SLPQ sbwait 0xc1b39bc8][SLP] sshd
950 c1cbb624 1001 949 950 0004002 [SLPQ wait 0xc1cbb624][SLP] bash
949 c1cbb830 1001 947 947 0000100 [SLPQ select 0xc09b0324][SLP] sshd
947 c1cbbc48 0 428 947 0004100 [SLPQ sbwait 0xc1b390a8][SLP] sshd
842 c18b1830 1001 841 838 0000002 [SLPQ wait 0xc18b1830][SLP] run
841 c18b120c 1001 840 838 0000002 [SLPQ wait 0xc18b120c][SLP] run
840 c165b418 1001 838 838 0004002 [SLPQ nanslp 0xc096300c][SLP] run
838 c18b1000 1001 829 838 0004002 [SLPQ wait 0xc18b1000][SLP] sh
829 c18b1418 1001 828 829 0004002 [SLPQ wait 0xc18b1418][SLP] bash
828 c18aec48 1001 826 826 0000100 [SLPQ select 0xc09b0324][SLP] sshd
826 c18ae624 0 428 826 0004100 [SLPQ sbwait 0xc1898bc8][SLP] sshd
550 c18aea3c 0 1 550 0004002 [SLPQ ttyin 0xc16f9010][SLP] getty
549 c18ae830 0 1 549 0004002 [SLPQ ttyin 0xc16f9410][SLP] getty
548 c17cb418 0 1 548 0004002 [SLPQ ttyin 0xc16f0810][SLP] getty
547 c18b1c48 0 1 547 0004002 [SLPQ ttyin 0xc16ef810][SLP] getty
546 c18ae418 0 1 546 0004002 [SLPQ ttyin 0xc16f0c10][SLP] getty
545 c18b1624 0 1 545 0004002 [SLPQ ttyin 0xc16eec10][SLP] getty
544 c18b2000 0 1 544 0004002 [SLPQ ttyin 0xc16ee810][SLP] getty
543 c17c7830 0 1 543 0004002 [SLPQ ttyin 0xc16e7410][SLP] getty
529 c18ae20c 0 1 529 0000000 [SLPQ select 0xc09b0324][SLP] inetd
450 c18ae000 0 1 450 0000000 [SLPQ nanslp 0xc096300c][SLP] cron
438 c18b1a3c 25 1 438 0000100 [SLPQ pause 0xc18b1a70][SLP] sendmail
434 c17c7a3c 0 1 434 0000100 [SLPQ select 0xc09b0324][SLP] sendmail
428 c17cb20c 0 1 428 0000100 [SLPQ select 0xc09b0324][SLP] sshd
410 c17c7624 0 1 410 0000000 [SLPQ select 0xc09b0324][SLP] ntpd
379 c17cba3c 0 1 379 0000000 [SLPQ select 0xc09b0324][SLP] usbd
360 c17cbc48 0 354 354 0000000 [SLPQ - 0xc1796a00][SLP] nfsd
359 c17cb624 0 354 354 0000000 [SLPQ - 0xc1796c00][SLP] nfsd
357 c17c7000 0 354 354 0000000 [SLPQ - 0xc1820000][SLP] nfsd
356 c17cb000 0 354 354 0000000 [SLPQ - 0xc1796e00][SLP] nfsd
354 c17c7418 0 1 354 0000000 [SLPQ select 0xc09b0324][SLP] nfsd
352 c17c720c 0 1 352 0000000 [SLPQ select 0xc09b0324][SLP] mountd
283 c17c7c48 0 1 283 0000000 [SLPQ select 0xc09b0324][SLP] rpcbind
255 c17cb830 0 1 255 0000000 [SLPQ select 0xc09b0324][SLP] devd
228 c165b20c 0 1 228 0000000 [SLPQ select 0xc09b0324][SLP] syslogd
61 c165b624 0 0 0 0000204 [SLPQ - 0xcca21d04][SLP] schedcpu
60 c165b830 0 0 0 0000204 [SLPQ - 0xc09b89ac][SLP] nfsiod 3
59 c165ba3c 0 0 0 0000204 [SLPQ - 0xc09b89a8][SLP] nfsiod 2
58 c165bc48 0 0 0 0000204 [SLPQ - 0xc09b89a4][SLP] nfsiod 1
57 c1771000 0 0 0 0000204 [SLPQ - 0xc09b89a0][SLP] nfsiod 0
56 c177120c 0 0 0 0000204 [RUNQ] syncer
55 c1771418 0 0 0 0000204 [SLPQ vlruwt 0xc1771418][SLP] vnlru
54 c1771624 0 0 0 0000204 [RUNQ] bufdaemon
53 c1771830 0 0 0 000020c [SLPQ pgzero 0xc09befa4][SLP] pagezero
52 c1771a3c 0 0 0 0000204 [SLPQ psleep 0xc09beaf4][SLP] vmdaemon
51 c1771c48 0 0 0 0000204 [SLPQ psleep 0xc09beab0][SLP] pagedaemon
50 c15ac624 0 0 0 0000204 [SLPQ - 0xc16a083c][SLP] fdc0
49 c15ac830 0 0 0 0000204 [IWAIT] swi0: sio
48 c15aca3c 0 0 0 0000204 [SLPQ usbevt 0xc1645210][SLP] usb4
47 c15acc48 0 0 0 0000204 [SLPQ usbevt 0xc1695210][SLP] usb3
46 c165a000 0 0 0 0000204 [SLPQ usbevt 0xc1696210][SLP] usb2
45 c165a20c 0 0 0 0000204 [SLPQ usbevt 0xc1682210][SLP] usb1
44 c165a418 0 0 0 0000204 [SLPQ usbtsk 0xc092bcc4][SLP] usbtask
43 c165a624 0 0 0 0000204 [SLPQ usbevt 0xc164e210][SLP] usb0
42 c165a830 0 0 0 0000204 [IWAIT] swi2: cambio
41 c165aa3c 0 0 0 0000204 [IWAIT] swi5:+
9 c165ac48 0 0 0 0000204 [SLPQ - 0xc15cba00][SLP] acpi_task2
8 c165b000 0 0 0 0000204 [SLPQ - 0xc15cba00][SLP] acpi_task1
7 c159cc48 0 0 0 0000204 [SLPQ - 0xc15cba00][SLP] acpi_task0
6 c15aa000 0 0 0 0000204 [SLPQ - 0xc15cba80][SLP] thread taskq
40 c15aa20c 0 0 0 0000204 [IWAIT] swi6:+
39 c15aa418 0 0 0 0000204 [IWAIT] swi6: task queue
5 c15aa624 0 0 0 0000204 [SLPQ - 0xc15cbd80][SLP] kqueue taskq
38 c15aa830 0 0 0 0000204 [SLPQ - 0xc09299e0][SLP] yarrow
4 c15aaa3c 0 0 0 0000204 [SLPQ - 0xc092c508][SLP] g_down
3 c15aac48 0 0 0 0000204 [SLPQ - 0xc092c504][SLP] g_up
2 c15ac000 0 0 0 0000204 [SLPQ gread 0xc1bce318][SLP] g_event
37 c15ac20c 0 0 0 0000204 [IWAIT] swi1: net
36 c15ac418 0 0 0 0000204 [IWAIT] swi3: vm
35 c1588624 0 0 0 000020c [RUNQ] swi4: clock sio
34 c1588830 0 0 0 0000204 [IWAIT] irq23: ehci0
33 c1588a3c 0 0 0 0000204 [RUNQ] irq22: rl0
32 c1588c48 0 0 0 0000204 [IWAIT] irq21:
31 c159c000 0 0 0 0000204 [IWAIT] irq20:
30 c159c20c 0 0 0 0000204 [IWAIT] irq19: uhci1
29 c159c418 0 0 0 0000204 [IWAIT] irq18: uhci2
28 c159c624 0 0 0 0000204 [IWAIT] irq17: pcm0
27 c159c830 0 0 0 0000204 [IWAIT] irq16: uhci0 uhci3
26 c159ca3c 0 0 0 0000204 [IWAIT] irq15: ata1
25 c155e20c 0 0 0 0000204 [RUNQ] irq14: ata0
24 c155e418 0 0 0 0000204 [IWAIT] irq13:
23 c155e624 0 0 0 0000204 [IWAIT] irq12:
22 c155e830 0 0 0 0000204 [IWAIT] irq11:
21 c155ea3c 0 0 0 0000204 [IWAIT] irq10:
20 c155ec48 0 0 0 0000204 [IWAIT] irq9: acpi0
19 c1588000 0 0 0 0000204 [IWAIT] irq8:
18 c158820c 0 0 0 0000204 [IWAIT] irq7: ppc0
17 c1588418 0 0 0 0000204 [IWAIT] irq6: fdc0
16 c1559000 0 0 0 0000204 [IWAIT] irq5:
15 c155920c 0 0 0 0000204 [IWAIT] irq4: sio0
14 c1559418 0 0 0 0000204 [IWAIT] irq3:
13 c1559624 0 0 0 0000204 [IWAIT] irq0:
12 c1559830 0 0 0 0000204 [IWAIT] irq1: atkbd0
11 c1559a3c 0 0 0 000020c [Can run] idle: cpu0
1 c1559c48 0 0 1 0004200 [SLPQ wait 0xc1559c48][SLP] init
10 c155e000 0 0 0 0000204 [SLPQ ktrace 0xc0960f98][SLP] ktrace
0 c092c600 0 0 0 0000200 [IWAIT] swapper
2722 c1c9720c 1001 2630 838 0002002 [RUNQ] mkdir
2712 c1bdea3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2701 c1c18a3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2720 c1c57c48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2715 c1c1820c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2736 c265e418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2713 c1bdec48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2726 c1c7d830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2686 c1c5dc48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2737 c1cbd624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2721 c1c97c48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2684 c1c1c418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2716 c1c18624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2741 c1cc0418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2733 c265ea3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2739 c265e20c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2738 c1cc0830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2685 c1cbd418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2731 c1c1c000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2728 c1cbdc48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2744 c3086624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2683 c1c38a3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2703 c1cbd20c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2729 c1cbda3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2743 c3086830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2735 c1c1c624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2711 c1bde830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2690 c1c5d624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2719 c1c57a3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2734 c265e000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2704 c1c5720c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2732 c1cc020c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2730 c1cc0c48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2688 c1c5d418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2689 c1c9d000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2700 c1bde624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2742 c1cc0624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2702 c265e830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2691 c1c9d624 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2718 c1c18418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2706 c1bdd418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2707 c1c5a000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2697 c1c38c48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2695 c1c9da3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2692 c1c18830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2714 c1c18000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2740 c1cc0a3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2725 c1c7da3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2710 c1c5a20c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2698 c1c3c830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2708 c1bdda3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2694 c1c9d830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2724 c1c7dc48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2723 c1c97000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2717 c1c1ca3c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2709 c1c97418 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2705 c1c1c830 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2699 c1c3cc48 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2696 c1c3c000 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2693 c1c5d20c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
2687 c1c1c20c 1001 2630 838 0002002 zomb[INACTIVE] mkdir
db> show lockedvnods
Locked vnodes
0xc2312570: tag ufs, type VDIR
usecount 0, writecount 0, refcount 2 mountedhere 0
flags ()
lock type ufs: EXCL (count 1) by thread 0xc1c3b480 (pid 2682)#0 0xc062bb5d at lockmgr+0x4ed
#1 0xc06831ad at vop_stdlock+0x21
#2 0xc080be93 at VOP_LOCK_APV+0x87
#3 0xc077a34c at ffs_lock+0x10
#4 0xc080be93 at VOP_LOCK_APV+0x87
#5 0xc0696f5c at vn_lock+0xac
#6 0xc068b45a at vrele+0xd2
#7 0xc068eda6 at kern_chdir+0x162
#8 0xc068ec42 at chdir+0x12
#9 0xc07fa0eb at syscall+0x22f
#10 0xc07e736f at Xint0x80_syscall+0x1f
ino 49112, on dev ad0s1e
0xc233aae0: tag ufs, type VDIR
usecount 0, writecount 0, refcount 2 mountedhere 0
flags ()
lock type ufs: EXCL (count 1) by thread 0xc1c99c00 (pid 2727)#0 0xc062bb5d at lockmgr+0x4ed
#1 0xc06831ad at vop_stdlock+0x21
#2 0xc080be93 at VOP_LOCK_APV+0x87
#3 0xc077a34c at ffs_lock+0x10
#4 0xc080be93 at VOP_LOCK_APV+0x87
#5 0xc0696f5c at vn_lock+0xac
#6 0xc068b45a at vrele+0xd2
#7 0xc068eda6 at kern_chdir+0x162
#8 0xc068ec42 at chdir+0x12
#9 0xc07fa0eb at syscall+0x22f
#10 0xc07e736f at Xint0x80_syscall+0x1f
ino 118388, on dev ad0s1e
0xc24b815c: tag ufs, type VDIR
usecount 0, writecount 0, refcount 1 mountedhere 0
flags ()
lock type ufs: EXCL (count 1) by thread 0xc165c780 (pid 54)#0 0xc062bb5d at lockmgr+0x4ed
#1 0xc06831ad at vop_stdlock+0x21
#2 0xc080be93 at VOP_LOCK_APV+0x87
#3 0xc077a34c at ffs_lock+0x10
#4 0xc080be93 at VOP_LOCK_APV+0x87
#5 0xc0696f5c at vn_lock+0xac
#6 0xc067d877 at flushbufqueues+0x37b
#7 0xc067d44b at buf_daemon+0xa3
#8 0xc06230c4 at fork_exit+0xa0
#9 0xc07e737c at fork_trampoline+0x8
ino 48840, on dev ad0s1e
db> show lockedbufs
buf at 0xc6609eb4
b_flags = 0xa00200a0<remfree,vmio,clusterok,delwri,cache>
b_error = 0, b_bufsize = 16384, b_bcount = 16384, b_resid = 0
b_bufobj = (0xc17f4ea4), b_data = 0xc6c97000, b_blkno = 753920
b_npages = 4, pages(OBJ, IDX, PA): (0xc1066108, 0x17020, 0xac84000),(0xc1066108, 0x17021, 0xaf65000),(0xc1066108, 0x17022, 0xb0e6000),(0xc1066108, 0x17023, 0xb447000)
lock type getblk: EXCL (count 1) by thread 0xc1c3b480 (pid 2682)#0 0xc062bb5d at lockmgr+0x4ed
#1 0xc067dfa7 at getblk+0x15b
#2 0xc067b017 at breadn+0x5b
#3 0xc067afb8 at bread+0x20
#4 0xc076694c at ffs_update+0x228
#5 0xc077f0b4 at ufs_inactive+0x184
#6 0xc080bc8f at VOP_INACTIVE_APV+0x9b
#7 0xc068b801 at vinactive+0x8d
#8 0xc068b480 at vrele+0xf8
#9 0xc068eda6 at kern_chdir+0x162
#10 0xc068ec42 at chdir+0x12
#11 0xc07fa0eb at syscall+0x22f
#12 0xc07e736f at Xint0x80_syscall+0x1f
buf at 0xc6629164
b_flags = 0x80000024<remfree,cache,async>
b_error = 0, b_bufsize = 4096, b_bcount = 2048, b_resid = 0
b_bufobj = (0xc2134d48), b_data = 0xc7187000, b_blkno = 422776
b_npages = 1, pages(OBJ, IDX, PA): (0xc09be8e0, 0x7288, 0x7e28000)
db> show alllocks
db> call doadump
Dumping 254 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 255MB (65072 pages) 239 223 207 191 175 159 143 127 111 95 79 63 47 31 15 ... ok
Dump complete
= 0xf
db> res
(kgdb) bt
#0 doadump () at pcpu.h:165
#1 0xc04698d3 in db_fncall (dummy1=0xc09dc500, dummy2=0x0, dummy3=0x0, dummy4=0xcf5b8aa0 "Ì\212[Ï8Ä}À¸\212[ϼ\212[Ï\220\a")
at ../../../ddb/db_command.c:488
#2 0xc04696d8 in db_command (last_cmdp=0xc0915564, cmd_table=0x0, aux_cmd_tablep=0xc089157c, aux_cmd_tablep_end=0xc0891598)
at ../../../ddb/db_command.c:403
#3 0xc04697a0 in db_command_loop () at ../../../ddb/db_command.c:454
#4 0xc046b3bd in db_trap (type=0x3, code=0x0) at ../../../ddb/db_main.c:228
#5 0xc064e84c in kdb_trap (type=0x3, code=0x0, tf=0xcf5b8be4) at ../../../kern/subr_kdb.c:473
#6 0xc07f9900 in trap (frame=
{tf_fs = 0xcf5b0008, tf_es = 0xc0650028, tf_ds = 0xc0860028, tf_edi = 0xc086463f, tf_esi = 0x1, tf_ebp = 0xcf5b8c24, tf_isp = 0xcf5b8c10, tf_ebx = 0xcf5b8c50, tf_edx = 0x0, tf_ecx = 0xc1033000, tf_eax = 0x12, tf_trapno = 0x3, tf_err = 0x0, tf_eip = 0xc064e5b3, tf_cs = 0x20, tf_eflags = 0x296, tf_esp = 0xcf5b8c44, tf_ss = 0xc06367eb}) at ../../../i386/i386/trap.c:591
#7 0xc07e731a in calltrap () at ../../../i386/i386/exception.s:139
#8 0xcf5b0008 in ?? ()
#9 0xc0650028 in log (level=0x0, fmt=---Can't read userspace from dump, or kernel process---
) at ../../../kern/subr_prf.c:238
#10 0xc06367eb in panic (fmt=0xc086463f "mutex %s not owned at %s:%d") at ../../../kern/kern_shutdown.c:549
#11 0xc062ef7f in _mtx_assert (m=0xc0962760, what=0x0, file=0xc084a33e "../../../dev/md/md.c", line=0x1e0) at ../../../kern/kern_mutex.c:742
#12 0xc054e0e9 in mdstart_vnode (sc=0xc1f2e000, bp=0xc1bce318) at ../../../dev/md/md.c:480
#13 0xc054e888 in md_kthread (arg=0xc1f2e000) at ../../../dev/md/md.c:676
#14 0xc06230c4 in fork_exit (callout=0xc054e71c <md_kthread>, arg=0xc1f2e000, frame=0xcf5b8d38) at ../../../kern/kern_fork.c:789
#15 0xc07e737c in fork_trampoline () at ../../../i386/i386/exception.s:208
(kgdb) f 12
#12 0xc054e0e9 in mdstart_vnode (sc=0xc1f2e000, bp=0xc1bce318) at ../../../dev/md/md.c:480
480 mtx_assert(&Giant, MA_OWNED);
(kgdb) l
475 int error;
476 struct uio auio;
477 struct iovec aiov;
478 struct mount *mp;
479
480 mtx_assert(&Giant, MA_OWNED);
481 /*
482 * VNODE I/O
483 *
484 * If an error occurs, we set BIO_ERROR but we do not set