Am Donnerstag, 15. März 2012 schrieb Chris Mason: > 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.
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 | >From vmstat 1: deepdance:~> vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 2 127012 109472 36 263096 1 6 661 740 516 1572 42 14 41 4 0 2 127012 110628 36 263088 0 0 0 2228 995 2114 41 14 0 44 0 0 127012 112800 36 263088 0 0 0 2916 1148 2306 38 19 2 41 1 0 127012 98416 36 277192 664 0 664 8 642 1203 82 13 3 2 2 0 127012 79320 36 294872 1072 0 1072 0 653 1226 77 16 0 7 9 0 127556 85952 36 279968 700 544 700 16456 1442 9767 37 63 0 0 3 0 127556 92584 36 281720 360 0 364 22408 1743 11684 44 56 0 0 0 2 127556 90964 36 282984 0 0 52 3104 915 2528 41 44 0 14 3 1 127556 91932 36 283036 0 0 0 2408 995 1969 46 14 0 40 0 1 127556 91760 36 283296 0 0 4 3004 980 2140 39 27 6 29 6 1 121000 190288 36 283884 0 0 612 8 596 1452 39 17 26 18 1 2 121000 181060 36 287732 0 0 3776 2104 791 1485 52 33 0 15 2 2 121000 181212 36 287724 0 0 4 2384 862 1936 40 23 1 37 0 1 121000 181444 36 287732 0 0 4 1888 870 2000 38 20 10 32 1 0 121000 181160 36 287740 0 0 4 2104 846 2170 45 25 9 20 3 1 121000 181156 36 287748 0 0 0 3528 916 2179 44 17 7 32 0 0 121000 181748 36 287756 0 0 0 1976 843 2199 41 19 17 23 3 0 121000 179252 36 290036 0 0 2240 2088 875 2197 42 30 1 28 These high values on wait luck suspicious to me. Anyway, cloning now. Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- 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
