New subject: [Bug 985447] btrfs(qgroup): fsck fails after subvolume snapshot

17 Jun 2016

      http://bugzilla.suse.com/show_bug.cgi?id=985447

            Bug ID: 985447
           Summary: btrfs(qgroup): fsck fails after subvolume snapshot
    Classification: openSUSE
           Product: openSUSE Tumbleweed
           Version: Current
          Hardware: Other
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Kernel
          Assignee: kernel-maintainers@forge.provo.novell.com
          Reporter: rgoldwyn@suse.com
        QA Contact: qa-bugs@suse.de
          Found By: ---
           Blocker: ---

Reference: First test case of xfstests. btrfs/001

A simplified version of the script:
#!/bin/bash

DEV=/dev/vda
SCRATCH_MNT=/mnt
BTRFS_UTIL_PROG=/sbin/btrfs

mkfs.btrfs -f $DEV
mount -t btrfs $DEV $SCRATCH_MNT
btrfs quota enable $SCRATCH_MNT

# First test basic snapshotting
echo "Creating file foo in root dir"
dd if=/dev/zero of=$SCRATCH_MNT/foo bs=1M count=1
echo "List root dir"
ls $SCRATCH_MNT
echo "Creating snapshot of root dir"
$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap 
umount $SCRATCH_MNT
btrfsck $DEV

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[Bug 985447] New: btrfs(qgroup): fsck fails after subvolume snapshot

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