On 2018年03月13日 12:19, MASAKI haruka wrote: > *Now* I tried with Linux 4.14 and 4.15. > I experienced same probrem and reported in 2014 with Linux 3.9 and 3.10. > (Perchance, actually the kernel was newer than 3.10, anyway I experienced > same probrem with old 3.x kernel.)
Then kernel message please. Especially for the readonly case. And "btrfs check" output please. Thanks, Qu > >> >> >> On 2018年03月13日 05:57, MASAKI haruka wrote: >>> I'm trying to clone 18TiB data between btrfs, >>> but it will crash anyway. >>> >>> This probrem is occured even how to clone (btrfs send/receive, rsync or cp.) >>> I experienced same probrem in Linux 3.9 and Linux 3.10. >> >> Did you really mean *3*.9 and *3*.10? >> >> That's too old for btrfs usage IIRC. >> >> It would be *4*.9 or *4*.10 for a relative new kernel for btrfs. >> >> Would you please try some latest mainline kernel again? >> >>> >>> What happen: >>> >>> 1. Failed to write because I/O error (read only filesystem) >>> 2. writing to the btrfs succeeds and fails randomly. >>> 3. The btrfs unable to unmount (resource is busy.) Unable to umount even >>> forcely, so cannot halt. >>> >>> Example: >>> --- >>> mkfile o7784-11-0 >>> rename o7784-11-0 -> >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/kVxX8RdGhryQiEMOm4II2qMw >>> utimes >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo >>> truncate >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/kVxX8RdGhryQiEMOm4II2qMw >>> size=1073698824 >>> chown >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/kVxX8RdGhryQiEMOm4II2qMw >>> - uid=1000, gid=1000 >>> chmod >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/kVxX8RdGhryQiEMOm4II2qMw >>> - mode=0600 >>> utimes >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/kVxX8RdGhryQiEMOm4II2qMw >>> mkfile o7785-12-0 >>> rename o7785-12-0 -> >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/lSABmfoArm9pAtade-gHmS6X >>> utimes >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo >>> truncate >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/lSABmfoArm9pAtade-gHmS6X >>> size=864067592 >>> ERROR: truncate >>> .filesystem/HDD/.XFV_pp/,fQO40jotqhUZ0/5JSSubx1Ph5xYNOcXhIAoIK3/XDGOWpbx,5zYWEi0L5LHdWBo/lSABmfoArm9pAtade-gHmS6X >>> failed: Input/output error >>> btrfs send 180310235348 0.09s user 11.98s system 16% cpu 1:14.42 total >>> --- >> >> In that case, we need kernel message to investigate. >> (And of course, please use at least 4.x kernel) >> >> Thanks, >> Qu >> >>> >>> Tries: >>> 1. >>> Connect between host A (btrfs, 4disks) and B with socat (TCP). >>> Host B write to iSCSI disk (btrfs, single). >>> clone with btrfs send/receive. Linux 4.15. >>> -> Crashed at transfarred 1.78TB >>> >>> 2. >>> Delete snapshot and retry. >>> Connect between host A and B with SSH and socat (UNIX). >>> Host B write to iSCSI disk (btrfs, single). >>> clone with btrfs send/receive. Linux 4.15. >>> -> Crashed at transfarred 90GB >>> >>> 3. >>> Recreate btrfs. >>> Host A write to iSCSI disk. >>> clone with btrfs send/receive. Linux 4.15. >>> -> Crashed at transfarred 260GB >>> >>> 4. >>> Recreate btrfs. >>> Original disk attach to other computer (having more resource.) >>> clone with btrfs send/receive. Linux 4.15. >>> -> Crashed at transfarred 120GB >>> >>> 5. >>> Recreate btrfs. >>> Clone with rsync. Linux 4.15. >>> -> Crashed at transfarred 100GB >>> >>> 6. >>> Recreate btrfs. >>> Try with Linux 4.14, btrfs send/receive. >>> -> Crashed at transfarred 3.98TB >>> >>> 7. >>> Recreate btrfs. >>> Connect between host and NAS (iSCSI) with GbE cable directly. >>> Mounted with options relatime, spase_cache, compress=lzo. >>> clone with btrfs send/receive. Linux 4.14. >>> -> Crashed at transfarred 2.13TB >>> >> > >
signature.asc
Description: OpenPGP digital signature
