http://bugzilla.novell.com/show_bug.cgi?id=1020030
http://bugzilla.novell.com/show_bug.cgi?id=1020030#c19
Randy Wright changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rwright@hpe.com
--- Comment #19 from Randy Wright ---
I just observed something quite similar running the SLES12SP3 kotd
4.4.79-2.g7fe2b65-default. I was testing crashdump, and as makedumpfile was
completing successfully, I observed this on the serial console:
[ 51.673736] ------------[ cut here ]------------
[ 51.673784] WARNING: CPU: 0 PID: 325 at ../fs/btrfs/qgroup.c:2466
btrfs_qgroup_free_refroot+0x14d/0x180 [btrfs]()
[ 51.673812] Modules linked in: btrfs xor hid_generic usbhid uas ...
[ 51.673813] Supported: Yes
[ 51.673818] CPU: 0 PID: 325 Comm: umount Not tainted
4.4.79-2.g7fe2b65-default #1
[ 51.673819] Hardware name: HPE ProLiant....
[ 51.673824] 0000000000000000 ffffffff81320810 0000000000000000
ffffffffa03839e9
[ 51.673827] ffffffff8107e061 ffff8800624fc908 0000000000050000
ffff88027788ad80
[ 51.673829] ffff8800624fc880 ffff88027788a000 ffffffffa036b26d
0000000000000103
[ 51.673830] Call Trace:
[ 51.673853] [<ffffffff81019b19>] dump_trace+0x59/0x310
[ 51.673862] [<ffffffff81019eba>] show_stack_log_lvl+0xea/0x170
[ 51.673868] [<ffffffff8101ac41>] show_stack+0x21/0x40
[ 51.673875] [<ffffffff81320810>] dump_stack+0x5c/0x7c
[ 51.673884] [<ffffffff8107e061>] warn_slowpath_common+0x81/0xb0
umount: /kdump/mnt0: not mounted
umount[ 51.673923] [<ffffffffa036b26d>]
btrfs_qgroup_free_refroot+0x14d/0x180 [btrfs]
If you want more detail from my sighting, I will need to create a confidental
bugzilla, as this was seen on an as-yet-unreleased HPE system. I can relate
that I have run many previous crashdump tests on this system and never
previously seen a warning from btrfs_qgroup_free_refroot, so I can offer no
clues for reproduction.
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