Hi,
I'm running Fedora Core 21 beta with kernel 3.17.4-300.fc21.x86_64 and
Btrfs-progs-3.17-1.fc21.x86_64
As my SSD was pretty full, I started :
btrfs balance start -dusage=75 -musage=75 /
This ended in "segmentation fault".
Afterwards my system wouldn't access the disk anymore, and needed a hard
reboot.
After reboot balance seemingly has resumed then finished :
[root@vajra ~]# btrfs balance status /
Balance on '/' is running
17 out of about 24 chunks balanced (123 considered), 29% left
(later)
[root@vajra ~]# btrfs balance status /
No balance found on '/'
...but my system has logged a (very high) number of kernel WARNINGS such as :
déc. 01 12:11:26 vajra kernel: ------------[ cut here ]------------
déc. 01 12:11:26 vajra kernel: WARNING: CPU: 2 PID: 966 at fs/btrfs/delayed-
inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]()
déc. 01 12:11:26 vajra kernel: Modules linked in: ccm rfcomm ip6t_rpfilter
ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc
ebtable_filter ebtables i
déc. 01 12:11:26 vajra kernel: rfkill wmi snd_pcm parport_pc parport hp_accel
snd_timer lis3lv02d mei_me input_polldev tpm_tis mei snd hp_wireless shpchp
i2c_i801 sou
déc. 01 12:11:26 vajra kernel: CPU: 2 PID: 966 Comm: btrfs-balance Tainted: G
W OE 3.17.4-300.fc21.x86_64 #1
déc. 01 12:11:26 vajra kernel: Hardware name: Hewlett-Packard HP EliteBook 820
G1/1991, BIOS L71 Ver. 01.12 06/25/2014
déc. 01 12:11:26 vajra kernel: 0000000000000000 000000009fd55060
ffff8800a8467ac8 ffffffff8173f929
déc. 01 12:11:26 vajra kernel: 0000000000000000 ffff8800a8467b00
ffffffff810970ad
ffff88014b7ee780
déc. 01 12:11:26 vajra kernel: 0000000000000000 ffff88022fcec800
ffff88022f9d1a40
0000000000000000
déc. 01 12:11:26 vajra kernel: Call Trace:
déc. 01 12:11:26 vajra kernel: [<ffffffff8173f929>] dump_stack+0x45/0x56
déc. 01 12:11:26 vajra kernel: [<ffffffff810970ad>]
warn_slowpath_common+0x7d/0xa0
déc. 01 12:11:26 vajra kernel: [<ffffffff810971da>]
warn_slowpath_null+0x1a/0x20
déc. 01 12:11:26 vajra kernel: [<ffffffffa02bc169>]
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa02675e8>]
btrfs_commit_transaction+0x388/0x950 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa02b850d>]
prepare_to_merge+0x20d/0x230
[btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa02b9163>]
relocate_block_group+0x403/0x6d0 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa02b9616>]
btrfs_relocate_block_group+0x1e6/0x2f0 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa028f25a>]
btrfs_relocate_chunk.isra.27+0x6a/0x750 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa023d7a1>] ?
btrfs_set_path_blocking+0x41/0x80 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa0242a5d>] ?
btrfs_search_slot+0x4ad/0xa70 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa027fda9>] ?
btrfs_get_token_64+0x119/0x140 [btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa028a1ff>] ?
free_extent_buffer+0x4f/0xa0
[btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa0292540>] btrfs_balance+0x980/0xf40
[btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa0292b5d>] balance_kthread+0x5d/0x80
[btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffffa0292b00>] ?
btrfs_balance+0xf40/0xf40
[btrfs]
déc. 01 12:11:26 vajra kernel: [<ffffffff810b52fa>] kthread+0xea/0x100
déc. 01 12:11:26 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:26 vajra kernel: [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
déc. 01 12:11:26 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:26 vajra kernel: ---[ end trace f1f27f48a0abdf6f ]---
déc. 01 12:11:27 vajra kernel: ------------[ cut here ]------------
déc. 01 12:11:27 vajra kernel: WARNING: CPU: 2 PID: 966 at fs/btrfs/delayed-
inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]()
déc. 01 12:11:27 vajra kernel: Modules linked in: ccm rfcomm ip6t_rpfilter
ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc
ebtable_filter ebtables i
déc. 01 12:11:27 vajra kernel: rfkill wmi snd_pcm parport_pc parport hp_accel
snd_timer lis3lv02d mei_me input_polldev tpm_tis mei snd hp_wireless shpchp
i2c_i801 sou
déc. 01 12:11:27 vajra kernel: CPU: 2 PID: 966 Comm: btrfs-balance Tainted: G
W OE 3.17.4-300.fc21.x86_64 #1
déc. 01 12:11:27 vajra kernel: Hardware name: Hewlett-Packard HP EliteBook 820
G1/1991, BIOS L71 Ver. 01.12 06/25/2014
déc. 01 12:11:27 vajra kernel: 0000000000000000 000000009fd55060
ffff8800a8467b20 ffffffff8173f929
déc. 01 12:11:27 vajra kernel: 0000000000000000 ffff8800a8467b58
ffffffff810970ad
ffff880183e6b820
déc. 01 12:11:27 vajra kernel: 0000000000000000 ffff88022fcec800
ffff88022f9d1950
0000000000000000
déc. 01 12:11:27 vajra kernel: Call Trace:
déc. 01 12:11:27 vajra kernel: [<ffffffff8173f929>] dump_stack+0x45/0x56
déc. 01 12:11:27 vajra kernel: [<ffffffff810970ad>]
warn_slowpath_common+0x7d/0xa0
déc. 01 12:11:27 vajra kernel: [<ffffffff810971da>]
warn_slowpath_null+0x1a/0x20
déc. 01 12:11:27 vajra kernel: [<ffffffffa02bc169>]
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa02675e8>]
btrfs_commit_transaction+0x388/0x950 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa02b91b4>]
relocate_block_group+0x454/0x6d0 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa02b9616>]
btrfs_relocate_block_group+0x1e6/0x2f0 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa028f25a>]
btrfs_relocate_chunk.isra.27+0x6a/0x750 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa023d7a1>] ?
btrfs_set_path_blocking+0x41/0x80 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0242a5d>] ?
btrfs_search_slot+0x4ad/0xa70 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa027fda9>] ?
btrfs_get_token_64+0x119/0x140 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa028a1ff>] ?
free_extent_buffer+0x4f/0xa0
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292540>] btrfs_balance+0x980/0xf40
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292b5d>] balance_kthread+0x5d/0x80
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292b00>] ?
btrfs_balance+0xf40/0xf40
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffff810b52fa>] kthread+0xea/0x100
déc. 01 12:11:27 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:27 vajra kernel: [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
déc. 01 12:11:27 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:27 vajra kernel: ---[ end trace f1f27f48a0abdf70 ]---
déc. 01 12:11:27 vajra kernel: ------------[ cut here ]------------
déc. 01 12:11:27 vajra kernel: WARNING: CPU: 2 PID: 966 at fs/btrfs/delayed-
inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]()
déc. 01 12:11:27 vajra kernel: Modules linked in: ccm rfcomm ip6t_rpfilter
ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc
ebtable_filter ebtables i
déc. 01 12:11:27 vajra kernel: rfkill wmi snd_pcm parport_pc parport hp_accel
snd_timer lis3lv02d mei_me input_polldev tpm_tis mei snd hp_wireless shpchp
i2c_i801 sou
déc. 01 12:11:27 vajra kernel: CPU: 2 PID: 966 Comm: btrfs-balance Tainted: G
W OE 3.17.4-300.fc21.x86_64 #1
déc. 01 12:11:27 vajra kernel: Hardware name: Hewlett-Packard HP EliteBook 820
G1/1991, BIOS L71 Ver. 01.12 06/25/2014
déc. 01 12:11:27 vajra kernel: 0000000000000000 000000009fd55060
ffff8800a8467c70 ffffffff8173f929
déc. 01 12:11:27 vajra kernel: 0000000000000000 ffff8800a8467ca8
ffffffff810970ad
ffff8800b03ae640
déc. 01 12:11:27 vajra kernel: 0000000000000000 ffff8800aed1e800
ffff88022f9d1860
0000000000000000
déc. 01 12:11:27 vajra kernel: Call Trace:
déc. 01 12:11:27 vajra kernel: [<ffffffff8173f929>] dump_stack+0x45/0x56
déc. 01 12:11:27 vajra kernel: [<ffffffff810970ad>]
warn_slowpath_common+0x7d/0xa0
déc. 01 12:11:27 vajra kernel: [<ffffffff810971da>]
warn_slowpath_null+0x1a/0x20
déc. 01 12:11:27 vajra kernel: [<ffffffffa02bc169>]
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa02675e8>]
btrfs_commit_transaction+0x388/0x950 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa028a1ff>] ?
free_extent_buffer+0x4f/0xa0
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa023d889>] ?
btrfs_release_path+0x29/0xa0 [btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa028c83e>]
__cancel_balance+0x17e/0x1b0
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292631>] btrfs_balance+0xa71/0xf40
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292b5d>] balance_kthread+0x5d/0x80
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffffa0292b00>] ?
btrfs_balance+0xf40/0xf40
[btrfs]
déc. 01 12:11:27 vajra kernel: [<ffffffff810b52fa>] kthread+0xea/0x100
déc. 01 12:11:27 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:27 vajra kernel: [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
déc. 01 12:11:27 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:11:27 vajra kernel: ---[ end trace f1f27f48a0abdf71 ]---
déc. 01 12:12:01 vajra kernel: ------------[ cut here ]------------
déc. 01 12:12:01 vajra kernel: WARNING: CPU: 0 PID: 844 at fs/btrfs/delayed-
inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]()
déc. 01 12:12:01 vajra kernel: Modules linked in: ccm rfcomm ip6t_rpfilter
ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc
ebtable_filter ebtables i
déc. 01 12:12:01 vajra kernel: rfkill wmi snd_pcm parport_pc parport hp_accel
snd_timer lis3lv02d mei_me input_polldev tpm_tis mei snd hp_wireless shpchp
i2c_i801 sou
déc. 01 12:12:01 vajra kernel: CPU: 0 PID: 844 Comm: btrfs-transacti Tainted:
G W OE 3.17.4-300.fc21.x86_64 #1
déc. 01 12:12:01 vajra kernel: Hardware name: Hewlett-Packard HP EliteBook 820
G1/1991, BIOS L71 Ver. 01.12 06/25/2014
déc. 01 12:12:01 vajra kernel: 0000000000000000 000000005aad0390
ffff88003675fdb8 ffffffff8173f929
déc. 01 12:12:01 vajra kernel: 0000000000000000 ffff88003675fdf0
ffffffff810970ad
ffff8801222c03c0
déc. 01 12:12:01 vajra kernel: 0000000000000000 ffff8800aed1e800
ffff88022f9d1770
0000000000000000
déc. 01 12:12:01 vajra kernel: Call Trace:
déc. 01 12:12:01 vajra kernel: [<ffffffff8173f929>] dump_stack+0x45/0x56
déc. 01 12:12:01 vajra kernel: [<ffffffff810970ad>]
warn_slowpath_common+0x7d/0xa0
déc. 01 12:12:01 vajra kernel: [<ffffffff810971da>]
warn_slowpath_null+0x1a/0x20
déc. 01 12:12:01 vajra kernel: [<ffffffffa02bc169>]
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
déc. 01 12:12:01 vajra kernel: [<ffffffffa02675e8>]
btrfs_commit_transaction+0x388/0x950 [btrfs]
déc. 01 12:12:01 vajra kernel: [<ffffffffa02632b5>]
transaction_kthread+0x245/0x260 [btrfs]
déc. 01 12:12:01 vajra kernel: [<ffffffffa0263070>] ?
btrfs_cleanup_transaction+0x550/0x550 [btrfs]
déc. 01 12:12:01 vajra kernel: [<ffffffff810b52fa>] kthread+0xea/0x100
déc. 01 12:12:01 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:12:01 vajra kernel: [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
déc. 01 12:12:01 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:12:01 vajra kernel: ---[ end trace f1f27f48a0abdf72 ]---
déc. 01 12:12:32 vajra kernel: ------------[ cut here ]------------
déc. 01 12:12:32 vajra kernel: WARNING: CPU: 3 PID: 844 at fs/btrfs/delayed-
inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]()
déc. 01 12:12:32 vajra kernel: Modules linked in: ccm rfcomm ip6t_rpfilter
ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc
ebtable_filter ebtables i
déc. 01 12:12:32 vajra kernel: rfkill wmi snd_pcm parport_pc parport hp_accel
snd_timer lis3lv02d mei_me input_polldev tpm_tis mei snd hp_wireless shpchp
i2c_i801 sou
déc. 01 12:12:32 vajra kernel: CPU: 3 PID: 844 Comm: btrfs-transacti Tainted:
G W OE 3.17.4-300.fc21.x86_64 #1
déc. 01 12:12:32 vajra kernel: Hardware name: Hewlett-Packard HP EliteBook 820
G1/1991, BIOS L71 Ver. 01.12 06/25/2014
déc. 01 12:12:32 vajra kernel: 0000000000000000 000000005aad0390
ffff88003675fdb8 ffffffff8173f929
déc. 01 12:12:32 vajra kernel: 0000000000000000 ffff88003675fdf0
ffffffff810970ad
ffff880190745500
déc. 01 12:12:32 vajra kernel: 0000000000000000 ffff8800aed1e800
ffff8800abeee870
0000000000000000
déc. 01 12:12:32 vajra kernel: Call Trace:
déc. 01 12:12:32 vajra kernel: [<ffffffff8173f929>] dump_stack+0x45/0x56
déc. 01 12:12:32 vajra kernel: [<ffffffff810970ad>]
warn_slowpath_common+0x7d/0xa0
déc. 01 12:12:32 vajra kernel: [<ffffffff810971da>]
warn_slowpath_null+0x1a/0x20
déc. 01 12:12:32 vajra kernel: [<ffffffffa02bc169>]
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
déc. 01 12:12:32 vajra kernel: [<ffffffffa02675e8>]
btrfs_commit_transaction+0x388/0x950 [btrfs]
déc. 01 12:12:32 vajra kernel: [<ffffffffa02632b5>]
transaction_kthread+0x245/0x260 [btrfs]
déc. 01 12:12:32 vajra kernel: [<ffffffffa0263070>] ?
btrfs_cleanup_transaction+0x550/0x550 [btrfs]
déc. 01 12:12:32 vajra kernel: [<ffffffff810b52fa>] kthread+0xea/0x100
déc. 01 12:12:32 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:12:32 vajra kernel: [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
déc. 01 12:12:32 vajra kernel: [<ffffffff810b5210>] ?
kthread_create_on_node+0x1a0/0x1a0
déc. 01 12:12:32 vajra kernel: ---[ end trace f1f27f48a0abdf73 ]---
...etc.
Any indight / help much appreciated.
TIA and kind regards.
--
Swâmi Petaramesh <sw...@petaramesh.org> http://petaramesh.org PGP 9076E32E
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