http://bugzilla.novell.com/show_bug.cgi?id=1020030
http://bugzilla.novell.com/show_bug.cgi?id=1020030#c21
--- Comment #21 from Randy Wright ---
Reproducing pretty reliably on my SUT with the previously mentioned KOTD.
Most recently if produced a full call trace:
[ 21.155564] Call Trace:
[ 21.158047] [<ffffffff81019b19>] dump_trace+0x59/0x310
[ 21.163310] [<ffffffff81019eba>] show_stack_log_lvl+0xea/0x170
[ 21.169270] [<ffffffff8101ac41>] show_stack+0x21/0x40
[ 21.174448] [<ffffffff81320810>] dump_stack+0x5c/0x7c
[ 21.179628] [<ffffffff8107e061>] warn_slowpath_common+0x81/0xb0
[ 21.185708] [<ffffffffa034526d>] btrfs_qgroup_free_refroot+0x14d/0x180
[btrfs]
[ 21.193104] [<ffffffffa02d6797>] commit_fs_roots.isra.21+0x147/0x180
[btrfs]
[ 21.200315] [<ffffffffa02d8f86>]
btrfs_commit_transaction.part.27+0x3f6/0xa90 [btrfs]
[ 21.208290] [<ffffffff812369ee>] sync_filesystem+0x6e/0xa0
[ 21.213905] [<ffffffff812086e2>] generic_shutdown_super+0x22/0xf0
[ 21.220126] [<ffffffff812087be>] kill_anon_super+0xe/0x20
[ 21.225667] [<ffffffffa02a7983>] btrfs_kill_super+0x13/0x100 [btrfs]
[ 21.232152] [<ffffffff81208089>] deactivate_locked_super+0x39/0x70
[ 21.238466] [<ffffffff812234ab>] cleanup_mnt+0x3b/0x80
[ 21.243730] [<ffffffff8109a112>] task_work_run+0x72/0x90
[ 21.249168] [<ffffffff81078ad9>] exit_to_usermode_loop+0x91/0xc2
[ 21.255305] [<ffffffff81003ae5>] syscall_return_slowpath+0x85/0xa0
[ 21.261618] [<ffffffff81609348>] int_ret_from_sys_call+0x25/0x8f
[ 21.271028] DWARF2 unwinder stuck at int_ret_from_sys_call+0x25/0x8f
There is a supportconfig bundle from this SUT attached to a different
confidential bug 1043261.
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