I got a similar one tonight:
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This GDB was configured as "i386-portbld-freebsd5.0"...
IdlePTD at phsyical address 0x00510000
initial pcb at physical address 0x0040f600
panicstr: bremfree: bp 0xc77aa504 not locked
panic messages:
---
panic: Most recently used by temp
syncing disks... panic: bremfree: bp 0xc77aa504 not locked
Uptime: 1d4h52m47s
Dumping 255 MB
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:213
213 dumping++;
(kgdb) where
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:213
#1 0xc023908d in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:345
#2 0xc0239241 in panic () at /usr/src/sys/kern/kern_shutdown.c:489
#3 0xc026c659 in bremfree (bp=0xc77aa504) at /usr/src/sys/kern/vfs_bio.c:633
#4 0xc026dd9e in vfs_bio_awrite (bp=0xc77aa504)
at /usr/src/sys/kern/vfs_bio.c:1626
#5 0xc021328c in spec_fsync (ap=0xd5ad98e0)
at /usr/src/sys/fs/specfs/spec_vnops.c:403
#6 0xc0212e7b in spec_vnoperate (ap=0x0)
at /usr/src/sys/fs/specfs/spec_vnops.c:121
#7 0xc02dbe85 in ffs_sync (mp=0xc26ec400, waitfor=2, cred=0xc0ef5e80,
td=0xc03d8360) at vnode_if.h:463
#8 0xc027aff8 in sync (td=0xc03d8360, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:127
#9 0xc0238cf9 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:254
#10 0xc0239241 in panic () at /usr/src/sys/kern/kern_shutdown.c:489
#11 0xc02f987c in mtrash_ctor (mem=0xc29ec200, size=0, arg=0x0)
at /usr/src/sys/vm/uma_dbg.c:135
#12 0xc02f87d7 in uma_zalloc_arg (zone=0xc0ecf280, udata=0x0, flags=0)
at /usr/src/sys/vm/uma_core.c:1358
#13 0xc0230230 in malloc (size=5, type=0xc03dabe0, flags=0)
at /usr/src/sys/kern/kern_malloc.c:171
#14 0xc021b9f5 in elf_load_file (p=0xc2b1f804, file=0x0, addr=0xd5ad9acc,
entry=0x0) at /usr/src/sys/kern/imgact_elf.c:344
---Type <return> to continue, or q <return> to quit---
#15 0xc021c172 in exec_elf_imgact (imgp=0xd5ad9bc0)
at /usr/src/sys/kern/imgact_elf.c:662
#16 0xc0226200 in execve (td=0xc2f609c0, uap=0xd5ad9d14)
at /usr/src/sys/kern/kern_exec.c:258
#17 0xc0329281 in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 135182808, tf_esi = 135182836,
tf_ebp = -1077937304, tf_isp = -710042252, tf_ebx = 135208960, tf_edx = -1077936535,
tf_ecx = 135182895, tf_eax = 59, tf_trapno = 12, tf_err = 2, tf_eip = 134702995,
tf_cs = 31, tf_eflags = 642, tf_esp = -1077937348, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1045
#18 0xc031c8ad in syscall_with_err_pushed () at {standard input}:128
Cannot access memory at address 0xbfbffb68
(kgdb)
- Christian
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