Bug#672959: kfreebsd-*: panic: vm_fault_copy_wired

[Steven Chamberlain <steven@pyro.eu.org>]

Package: src:sysvinit
Version: 2.88dsf-22.1
Severity: important
Tags: sid wheezy
User: debian-bsd@lists.debian.org
Usertags: kfreebsd
X-Debbugs-Cc: debian-bsd@lists.debian.org

Hi,

Not exactly sure yet where to file this bug, perhaps initscripts, a
kernel (kfreebsd-8 and -9) bug or something else but I shall file it
here for now.

If a GNU/kFreeBSD ufs root filesystem is dirty (from unclean shutdown),
the panic below is triggered during the early init scripts.  The only
way to fix it is to use some rescue system (e.g. d-i) to fsck the
filesystem, marking it clean.

First reported 2012-05-07, and confirmed by two others on
debian-bsd@lists.d.o;  see
[🔎] 4FA80DBD.3000200@pyro.eu.org">http://lists.debian.org/[🔎] 4FA80DBD.3000200@pyro.eu.org

> Trying to mount root from ufs:/dev/ad0s1
> WARNING: / was not properly dismounted
> mount option <nodev> is unknown
> mount option <nodev> is unknown
> mount option <nodev> is unknown
> panic: vm_fault_copy_wired: page missing
> cpuid = 1
> KDB: stack backtrace:
> Uptime: 4s
> Cannot dump. Device not defined or unavailable.
> Automatic reboot in 15 seconds - press a key on the console to abort
> --> Press a key on the console to reboot,
> --> or switch off the system now.

Thanks!
Regards,
-- 
Steven Chamberlain
steven@pyro.eu.org