Re: Kernel BUG on mounting BtrFS / after reboot

Alex Elsayed
2010-02-17T06:47:28Z

Alex Elsayed <eternaleye <at> gmail.com> writes:

>
> 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).

I have run btrfs-image on the partition, but due to it spanning the better part
of 500GB (80% full), it's 1.1GB. I therefore can't attach it, but if there's
somewhere I can FTP or otherwise upload it to so it can be examined, please let
me know.