On Tue, Jul 30, 2013 at 07:02:29PM +0000, Thorsten Glaser wrote: > Josef Bacik dixit: > > >Can you gdb btrfs.ko and do > > > >list *(__btrfs_map_block+0x11c) > > Not easily (the kernel image is from a .deb package), > and even in a compile tree gdb just says: > No symbol table is loaded. Use the "file" command. > > With a bit of cheating and a cross-compiler, this is: > > (gdb) list *0x0000106e > 0x106e is in __btrfs_map_block > (/var/lib/gforge/chroot/home/users/tg/Xl/linux-3.10.1/fs/btrfs/volumes.c:4447). > 4442 stripe_nr = offset; > 4443 /* > 4444 * stripe_nr counts the total number of stripes we have to > stride > 4445 * to get to this block > 4446 */ > 4447 do_div(stripe_nr, stripe_len); > 4448 > 4449 stripe_offset = stripe_nr * stripe_len; > 4450 BUG_ON(offset < stripe_offset); > 4451 >
So stripe_len shouldn't be 0, if it is you have bigger problems :). Is this a corrupt fs or something? If there was some sort of corruption that occured then I suppose stripe_len could be 0 and we'd need to catch that somewhere higher up the stack and error out. Is there a way you could check and see if that's the case? 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/20130730204001.GG24583@localhost.localdomain
