On 2017年12月16日 23:41, Tom Hale wrote: > The following shows that errors are found with check --mode=lowmem, but > are not picked up without lowmem.
Btrfs-progs version please. Depending on your btrfs-progs version, and the output, it's possible that they're just false alerts and should be addressed in latest version. Thanks, Qu > > How would I go about fixing errors only reported by lowmem? > > ---------------------------------------- > > [manjaro manjaro]# btrfs check --mode=lowmem --progress > /dev/mapper/vg_svelte-home > Checking filesystem on /dev/mapper/vg_svelte-home > UUID: 93722fa7-7e8f-418a-a7ca-080aca8db94b > ERROR: extent[691815358464, 11042816] referencer count mismatch (root: > 257, owner: 1869679, offset: 613974016) wanted: 1, have: 2 > ERROR: extent[720156536832, 99430400] referencer count mismatch (root: > 257, owner: 758215, offset: 1610616832) wanted: 8, have: 379 > ERROR: extent[720669147136, 268435456] referencer count mismatch (root: > 257, owner: 758215, offset: 4096) wanted: 86, have: 1021 > ERROR: extent[720669147136, 268435456] referencer count mismatch (root: > 257, owner: 1767807, offset: 4096) wanted: 87, have: 1021 > ERROR: extent[726724722688, 64069632] referencer count mismatch (root: > 257, owner: 1480823, offset: 99090432) wanted: 1, have: 5 > ERROR: extent[737910194176, 134217728] referencer count mismatch (root: > 257, owner: 1480726, offset: 268435456) wanted: 1, have: 8 > ERROR: extent[738077896704, 134217728] referencer count mismatch (root: > 257, owner: 1869696, offset: 402653184) wanted: 5, have: 8 > ERROR: extent[744334426112, 268435456] referencer count mismatch (root: > 257, owner: 1767802, offset: 0) wanted: 111, have: 294 > ERROR: extent[824948670464, 1671168] referencer count mismatch (root: > 257, owner: 2000876, offset: 247861248) wanted: 16, have: 26 > ERROR: data extent[681550843904 8192] backref lost > ERROR: errors found in extent allocation tree or chunk allocation > cache and super generation don't match, space cache will be invalidated > ERROR: errors found in fs roots > found 172094545920 bytes used, error(s) found > total csum bytes: 165679768 > total tree bytes: 3066789888 > total fs tree bytes: 2751315968 > total extent tree bytes: 112295936 > btree space waste bytes: 568660274 > file data blocks allocated: 8158426562560 > referenced 597269540864 > [manjaro manjaro]# btrfs check --repair --progress > /dev/mapper/vg_svelte-home > enabling repair mode > Checking filesystem on /dev/mapper/vg_svelte-home > UUID: 93722fa7-7e8f-418a-a7ca-080aca8db94b > checking extents [.] > Fixed 0 roots. > cache and super generation don't match, space cache will be invalidated > checking fs roots [o] > checking csums > checking root refs > found 172091723777 bytes used, no error found > total csum bytes: 165679768 > total tree bytes: 2003206144 > total fs tree bytes: 1687732224 > total extent tree bytes: 112295936 > btree space waste bytes: 346177995 > file data blocks allocated: 5952940838912 > referenced 474676633600 > [manjaro manjaro]# > > ---------------------------------------- >
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