On Tue, Jul 30, 2013 at 11:07:30AM +0200, Geert Uytterhoeven wrote: > On Tue, 30 Jul 2013, Thorsten Glaser wrote: > > NEW problem: btrfs doesn’t work at all. I had to reboot my > > buildd into 3.2 using echo s/u/s/o >/proc/sysrq-trigger as > > the attempt to mount it left the system hanging there. > > > [ 0.000000] Linux version 3.10-1-m68k (debian-ker...@lists.debian.org) > > (gcc version 4.8.1 (Debian 4.8.1-7+m68k.1) ) #1 Debian 3.10.3-1 (2013-07-27) > > > [ 6.720000] bio: create slab <bio-1> at 1 > > [ 6.740000] Btrfs loaded > > [ 6.830000] device label ara5-butter devid 1 transid 376178 /dev/nfhd8p3 > > [ 7.150000] EXT4-fs (nfhd8p1): mounted filesystem with ordered data > > mode. Opts: (null) > > [ 14.520000] udevd[228]: starting version 175 > > [ 17.820000] device label ara5-butter devid 1 transid 376178 /dev/nfhd8p3 > > [ 20.850000] Adding 3670012k swap on /dev/nfhd8p2. Priority:-1 extents:1 > > across:3670012k > > [ 21.380000] EXT4-fs (nfhd8p1): re-mounted. Opts: (null) > > [ 31.300000] EXT4-fs (nfhd8p1): re-mounted. Opts: errors=remount-ro > > [ 38.460000] device label ara5-butter devid 1 transid 376178 /dev/nfhd8p3 > > [ 38.530000] btrfs: setting nodatacow, compression disabled > > [ 38.540000] btrfs: enabling auto recovery > > [ 38.570000] btrfs: disk space caching is enabled > > [ 38.600000] *** ZERO DIVIDE *** FORMAT=2 > > [ 38.630000] Current process id is 722 > > [ 38.660000] BAD KERNEL TRAP: 00000000 > > [ 38.680000] Modules linked in: evdev mac_hid ext4 crc16 jbd2 mbcache > > btrfs xor lzo_compress zlib_deflate raid6_pq crc32c libcrc32c > > [ 38.730000] PC: [<319535b2>] __btrfs_map_block+0x11c/0x119a [btrfs] > > Woops, adding the btrfs devs to CC. >
Can you gdb btrfs.ko and do list *(__btrfs_map_block+0x11c) so I can see where this is? I've not seen this yet, just so I'm clear this is blowing up because we're doing blah / 0 right? I've looked at all the places we do divides in this function and it doesn't look like we're doing this anywhere but I could be blind. Thanks, Josef -- To UNSUBSCRIBE, email to debian-68k-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130730171329.GF24583@localhost.localdomain
