hello, world\n
with a system cvsupped June 6th I can reliably reproduce a
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x22
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01b67e2
stack pointer = 0x10:0xc8f7aea0
frame pointer = 0x10:0xc8f7aea8
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 = 832 (umount)
panic: from debugger
panic: from debugger
Uptime: 10m3s
dumping to dev da2s1b, offset 352280
when I try to unmount a deleted mdconfig device. Here's the recipe:
# file iso is a Freebsd 4.3 Wind River CD image made with
# dd if=/dev/cd0c of=file.iso bs=2048
mdconfig -a -t vnode -f file.iso
mount -t cd9660 /dev/md0 /mnt/freebsd-cd
mdconfig -d -u md0
umount /dev/md0
I'm not sure if this is the right fix but what about having the
mdconfig -d fail with EBUSY in case someone tries to delete a mounted
md device?
Regards,
Jens
--
Jens Schweikhardt http://www.schweikhardt.net/
SIGSIG -- signature too long (core dumped)
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