On Mon, Mar 28, 2016 at 04:37:14PM +0200, Marc Haber wrote: > I have a btrfs which btrfs check --repair doesn't fix: > > # btrfs check --repair /dev/mapper/fanbtr > bad metadata [4425377054720, 4425377071104) crossing stripe boundary > bad metadata [4425380134912, 4425380151296) crossing stripe boundary > bad metadata [4427532795904, 4427532812288) crossing stripe boundary > bad metadata [4568321753088, 4568321769472) crossing stripe boundary > bad metadata [4568489656320, 4568489672704) crossing stripe boundary > bad metadata [4571474493440, 4571474509824) crossing stripe boundary > bad metadata [4571946811392, 4571946827776) crossing stripe boundary > bad metadata [4572782919680, 4572782936064) crossing stripe boundary > bad metadata [4573086351360, 4573086367744) crossing stripe boundary > bad metadata [4574221041664, 4574221058048) crossing stripe boundary > bad metadata [4574373412864, 4574373429248) crossing stripe boundary > bad metadata [4574958649344, 4574958665728) crossing stripe boundary > bad metadata [4575996018688, 4575996035072) crossing stripe boundary > bad metadata [4580376772608, 4580376788992) crossing stripe boundary > repaired damaged extent references > Fixed 0 roots. > checking free space cache > checking fs roots > checking csums > checking root refs > enabling repair mode > Checking filesystem on /dev/mapper/fanbtr > UUID: 90f8d728-6bae-4fca-8cda-b368ba2c008e > cache and super generation don't match, space cache will be invalidated > found 97171628230 bytes used err is 0 > total csum bytes: 91734220 > total tree bytes: 3021848576 > total fs tree bytes: 2762784768 > total extent tree bytes: 148570112 > btree space waste bytes: 545440822 > file data blocks allocated: 308328280064 > referenced 177314340864 Mounting this filesystem gives: Mar 28 20:25:18 fan kernel: [ 20.979673] BTRFS error (device dm-16): could not find root 8 Mar 28 20:25:18 fan kernel: [ 20.979739] BTRFS error (device dm-16): could not find root 8 Mar 28 20:25:18 fan kernel: [ 20.980900] BTRFS error (device dm-16): could not find root 8 Mar 28 20:25:18 fan kernel: [ 20.980948] BTRFS error (device dm-16): could not find root 8 Mar 28 20:25:18 fan kernel: [ 20.981428] BTRFS error (device dm-16): could not find root 8 Mar 28 20:25:18 fan kernel: [ 20.981472] BTRFS error (device dm-16): could not find root 8 which is not detected by btrfs check. What is going on here? Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Leimen, Germany | lose things." Winona Ryder | Fon: *49 6224 1600402 Nordisch by Nature | How to make an American Quilt | Fax: *49 6224 1600421 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
