Re: failed to set xfermode on multiple disks SOLVED

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On Tue, Jan 22, 2013 at 2:50 PM, Jameson <imntreal@xxxxxxxxx> wrote:
> On Mon, Jan 21, 2013 at 6:11 PM, Jameson <imntreal@xxxxxxxxx> wrote:
>> On Mon, Jan 21, 2013 at 12:38 AM, Martín Cigorraga <msx@xxxxxxxxxxxx> wrote:
>>> On Mon, Jan 21, 2013 at 12:33 AM, Jameson <imntreal@xxxxxxxxx> wrote:
>>>
>>>> I hope someone can help me.  I have a server with two SSDs that
>>>> contain a mirrored btrfs volume holding /, and multiple HDDs that are
>>>> in a btrfs RAID10 array.  I updated to linux 3.7.3 in testing, and it
>>>> failed to boot.  I booted from a USB drive, and reinstalled 3.6.?, and
>>>> I still get failed to set xfermode (err_mask=0x40).  I don't see
>>>> anything in dmesg that makes a difference.  The only thing that
>>>> changed was the kernels, back and forth.  Does anyone have an idea, or
>>>> am I going to have to re-install?  Thanks.
>>>>
>>>
>>> Hi Jameson, a blind shot here since I'm not familiar yet with SSD setups:
>>> did you tried running a fsck? In the past I had a similar situation with
>>> conventional hard disks and the problem was some corrupted data in /boot.
>>>
>>> Hope you have your beast up soon!
>>
>> Yes.  I had actually forgotten that I had a separate ext4 boot
>> partition.  I've ran fsck on it as well as btrfsck on my mirrored
>> root, and my raid10 array.  All return fine.  During boot, between
>> some of the xfermode errors, I can see the message where it is looking
>> for btrfs file systems, and then a repair console which says that the
>> root filesystem can't be found which doesn't respond for some reason.
>> I'll try to find another keyboard to see if it will make a difference.
>>  I did another install of of the old 3.6 kernel, and noticed that it
>> threw an error about not being able to find the root filesystem at
>> that point also.  Any further diagnostic advice will be appreciated.
>
> Also, it turns out changing USB keyboards makes no difference.  I
> don't think I have a PS/2 keyboard, anymore.  I've currently copied
> all of my data from my SSD array to a HDD, and plan on trying to get
> it to boot.  I've successfully ran mkinitcpio and grub-mkconfig from a
> chroot on the HDD which did not return the error about not finding the
> root filesystem, so I'm hopeful it will at least get me back up and
> running.  I forgot to grub-install, though, so I'll have to wait until
> I get home to test it.

In case anyone else runs into this, I needed to patch the kernel with
the patch provided in this bug:
https://bugzilla.kernel.org/show_bug.cgi?id=51881


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