On Thu, Mar 15, 2012 at 06:32:19PM +0100, Martin Steigerwald wrote: > Am Samstag, 25. Februar 2012 schrieb Arne Jansen: > > On 02/24/12 16:51, Martin Steigerwald wrote: > > > Am Samstag, 21. Januar 2012 schrieb Martin Steigerwald: > > >> Am Samstag, 21. Januar 2012 schrieb Martin Steigerwald: > > >>> I still have this with 3.2.0-1-pae - which is a debian kernel based > > >>> on 3.2.1. > > >>> > > >>> When I do btrfs scrub start / the machine locks immediately up > > >>> hard. > > >>> > > >>> Then usually on next boot it stops on space_cache enabled message, > > >>> but not the one for /, but the one for /home which is mounted > > >>> later. > > >>> > > >>> When I then boot with 3.1 it works. BTRFS redos the space_cache > > >>> then while the machine takes ages to boot - I mean ages - 10 > > >>> minutes till KDM prompt is no problem there. > > >> > > >> I now tested scrubbing /home which is a different BTRFS filesystem > > >> on the same machine. > > >> > > >> Then the scrub is started, scrub status tells me so, but nothing > > >> happens, no block in/out activity in vmstat, no CPU related activity > > >> in top. > > >> > > >> btrfs scrub cancel then hangs, but not the complete machine, only > > >> the process. > > >> > > >> I had this once on my T520 with the internal Intel SSD 320 as well. > > >> The other time it worked. > > >> > > >> Well maybe that is due to BTRFS doing something else on my T23 now: > > >> > > >> deepdance:~> ps aux | grep ino-cache | grep -v grep > > >> root 1992 5.5 0.0 0 0 ? D 12:15 0:09 > > >> [btrfs- ino-cache] > > >> > > >> Hmmm, so I just let it sit for a while, maybe eventually it will > > >> scrub /home. > > >> > > >> At least it doesn´t lock up hard, so there might really be something > > >> strange with /. > > > > > > FWIW a btrfs filesystem balance / does work. After this a btrfs scrub > > > start / still locks the kernel. > > > > Hi Martin, > > > > I just sent 2 patches to the list. Could you please test if these > > fix your problem with scrub? > > 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. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
