Re: 3.2-rc4: scrubbing locks up the kernel, then hung tasks on boot

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On Thu, Mar 15, 2012 at 07:03:14PM +0100, Martin Steigerwald wrote:
> Am Donnerstag, 15. März 2012 schrieb Chris Mason:
> > > 
> > > I didn´t yet test it but I tried the first balance then scrub stuff 
> > > again:
> > Looks like you're on a 32 bit machine.  The current for-linus branch
> > has an important fix for scrub on 32 bit that should solve this.
> 
> Yes, thats 32-bit.
> 
> Can this fix be applied to 3.2 as well? If yes, could you point me at it?
> Or otherwise is current for-linus somewhat stable?
> 
> Cloning nonetheless - well after it finally installed git there which
> takes ages with audio playback lockups. Hopefully the /home BTRFS
> is faster than the / one ;). I have no cross-compiling set up.
> 
> From atop:
> 
> PAG | scan  11903 | stall      0 |              | swin      25 | swout    875 |
> DSK |         sda | busy     74% | read     297 | write   4240 | avio    1 ms |

http://git.kernel.org/?p=linux/kernel/git/mason/linux-btrfs.git;a=commit;h=a175423c831ea582c06784d1e172d2ce1d79923a

The patch is so small you can edit it by hand.

-chris
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