Hi Qu, I have another volume with the same error, btrfs-debug-tree output from btrfs-progs 4.0.1 is here: http://pastebin.com/k3R3bngE
I'm not sure how to interpret the output, but the exit status is 0 so it looks like btrfs doesn't think there's an issue with the file system. I get the same mount error with options ro,recovery. On Fri, Jun 12, 2015 at 12:23 AM, Qu Wenruo <quwen...@cn.fujitsu.com> wrote: > > > -------- Original Message -------- > Subject: Can't mount btrfs volume on rbd > From: Steve Dainard <sdain...@spd1.com> > To: <linux-btrfs@vger.kernel.org> > Date: 2015年06月11日 23:26 > >> Hello, >> >> I'm getting an error when attempting to mount a volume on a host that >> was forceably powered off: >> >> # mount /dev/rbd4 climate-downscale-CMIP5/ >> mount: mount /dev/rbd4 on /mnt/climate-downscale-CMIP5 failed: Stale file >> handle >> >> /var/log/messages: >> Jun 10 15:31:07 node1 kernel: rbd4: unknown partition table >> >> # parted /dev/rbd4 print >> Model: Unknown (unknown) >> Disk /dev/rbd4: 36.5TB >> Sector size (logical/physical): 512B/512B >> Partition Table: loop >> Disk Flags: >> >> Number Start End Size File system Flags >> 1 0.00B 36.5TB 36.5TB btrfs >> >> # btrfs check --repair /dev/rbd4 >> enabling repair mode >> Checking filesystem on /dev/rbd4 >> UUID: dfe6b0c8-2866-4318-abc2-e1e75c891a5e >> checking extents >> cmds-check.c:2274: check_owner_ref: Assertion `rec->is_root` failed. >> btrfs[0x4175cc] >> btrfs[0x41b873] >> btrfs[0x41c3fe] >> btrfs[0x41dc1d] >> btrfs[0x406922] >> >> >> OS: CentOS 7.1 >> btrfs-progs: 3.16.2 > > The btrfs-progs seems quite old, and the above btrfsck error seems quite > possible related to the old version. > > Would you please upgrade btrfs-progs to 4.0 and see what will happen? > Hopes it can give better info. > > BTW, it's a good idea to call btrfs-debug-tree /dev/rbd4 to see the output. > > Thanks > Qu. >> >> Ceph: version: 0.94.1/CentOS 7.1 >> >> I haven't found any references to 'stale file handle' on btrfs. >> >> The underlying block device is ceph rbd, so I've posted to both lists >> for any feedback. Also once I reformatted btrfs I didn't get a mount >> error. >> >> The btrfs volume has been reformatted so I won't be able to do much >> post mortem but I'm wondering if anyone has some insight. >> >> Thanks, >> Steve >> -- >> 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 >> > -- 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
