On Fri, Mar 4, 2016 at 2:10 PM, <ne...@smoula.net> wrote: > Hello, > > I'm encountering weird enospc problem while writing to filesystem and > creating snapshot at a same time: > > Steps to reproduce: > > start writing data to filesystem: > > # LC_ALL=C dd if=/dev/zero of=/foobar > dd: writing to '/foobar': No space left on device > 3003803+0 records in > 3003802+0 records out > 1537946624 bytes (1.5 GB, 1.4 GiB) copied, 10.8072 s, 142 MB/s > > in other terminal create read-only (or r/w - results are the same) > # btrfs sub snap -r / /.snap1 > Create a readonly snapshot of '/' in '//.snap1' > > while creating this snapshot, ENOSPC is produced.
Known issue. There's a thread already about it somewhere around here in the last 4-6 weeks. (rw,noatime,nodatasum,nodatacow,ssd,discard,space_cache,enospc_debug,commit=900,subvolid=5,subvol=/) Most likely unrelated but commit time of 15 minutes? Umm, OK why? -- Chris Murphy -- 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
