Don Zickus <dzickus(a)redhat.com> writes:
On Thu, Oct 27, 2011 at 06:59:12PM +0200, Antonio Trande wrote:
> The digital picture are here:
>
http://sagitter.fedorapeople.org/kernel-boot.tar.gz
According to our DM guys this fix just missed 3.1
http://git.kernel.dk/?p=linux-block.git;a=commit;h=f26d8f0562da76731cb049...
http://git.kernel.dk/?p=linux-block.git;a=commit;h=8f02b3a09b1b7d2a4d24b8...
I cc'd Jeff Moyer he knows about it. The DM folks assume that you are
using multipath (as that is the only way you can hit this bug from their
point of view).
This doesn't look like the same problem. Here we've got BUG: scheduling
while atomic. If it was the bug fixed by the above commits, then you
would hit a BUG_ON. I would start looking at the btrfs bits to see if
they're holding any locks in this code path.
Cheers,
Jeff