Re: Kernel BUG on mounting BtrFS / after reboot

Alex Elsayed
2010-02-12T22:59:14Z

Mike Fedyk <mfedyk <at> mikefedyk.com> writes:

>
> On Fri, Feb 12, 2010 at 1:04 PM, Alex Elsayed <eternaleye <at> gmail.com>
wrote:
> > I'm getting a rather nasty BUG when I try to mount this filesystem,
> > _including_ when I specify -o ro. I'm unsure what caused it, but the problem
> > manifested after my computer hardlocked while reading my RSS feeds, complete
> > with flashing lights. After I rebooted it, the screen filled with panic
> > messages when the initramfs tried to mount it RO to pivot into. I am running
> > 2.6.33-rc6. The BUG message is as follows:
>
> Is this the bug you mentioned on IRC that you fixed somehow?
>
> If so please post the steps you performed.

No, that bug was on a different hard drive and was due to bad blocks. That
instance was converted from ext4, while this is a new mkfs. The steps necessary
to reproduce the BUG are simple - mount -o ro /dev/Arkadios/Root $mountpoint.
I'm currently running from my initramfs, with that old system mounted ro and
bound to /usr (since that problem only occurred when writing to the disk, it
makes a passable recovery environment).