*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.)
> > > 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 > > > -- MASAKI haruka <y...@reasonset.net> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
