* BTRFS: unable to add free space :-17
@ 2015-03-23 12:19 Tomasz Chmielewski
2015-03-23 12:35 ` Chris Mason
0 siblings, 1 reply; 5+ messages in thread
From: Tomasz Chmielewski @ 2015-03-23 12:19 UTC (permalink / raw)
To: linux-btrfs
Got this with 4.0.0-rc5 when doing a degraded mount:
Mar 23 13:09:22 server1 kernel: [ 665.197957] BTRFS info (device sdb4):
allowing degraded mounts
Mar 23 13:09:22 server1 kernel: [ 665.198030] BTRFS info (device sdb4):
disk space caching is enabled
Mar 23 13:09:22 server1 kernel: [ 665.213163] BTRFS warning (device
sdb4): devid 2 missing
Mar 23 13:09:22 server1 kernel: [ 665.260077] BTRFS: bdev (null) errs:
wr 1, rd 1, flush 0, corrupt 0, gen 0
Mar 23 13:10:01 server1 kernel: [ 704.310874] ------------[ cut here
]------------
Mar 23 13:10:01 server1 kernel: [ 704.310936] WARNING: CPU: 1 PID: 4706
at fs/btrfs/free-space-cache.c:1349 tree_insert_offset+0x7d/0xc3
[btrfs]()
Mar 23 13:10:01 server1 kernel: [ 704.310989] Modules linked in: ipv6
cpufreq_stats cpufreq_powersave cpufreq_conservative btrfs xor raid6_pq
zlib_deflate ext3 jbd loop 8250_fintek i2c_i801 parport_pc tpm_infineon
tpm_tis tpm lpc_ich ehci_pci ehci_hcd mfd_core i2c_core parport pcspkr
acpi_cpufreq button video ext4 crc16 jbd2 mbcache raid1 sg sd_mod ahci
libahci libata scsi_mod r8169 mii
Mar 23 13:10:01 server1 kernel: [ 704.312632] CPU: 1 PID: 4706 Comm:
btrfs-transacti Not tainted 4.0.0-rc5 #1
Mar 23 13:10:01 server1 kernel: [ 704.312680] Hardware name: System
manufacturer System Product Name/P8H67-M PRO, BIOS 1106 10/17/2011
Mar 23 13:10:01 server1 kernel: [ 704.312732] 0000000000000009
ffff880819917c18 ffffffff813c2f57 ffff88083fa4d801
Mar 23 13:10:01 server1 kernel: [ 704.312928] 0000000000000000
ffff880819917c58 ffffffff8103b031 ffff880036eb9540
Mar 23 13:10:01 server1 kernel: [ 704.313124] ffffffffa03126f6
00000000ffffffef ffff880036eb9540 000001dd651b4000
Mar 23 13:10:01 server1 kernel: [ 704.313321] Call Trace:
Mar 23 13:10:01 server1 kernel: [ 704.313394] [<ffffffff813c2f57>]
dump_stack+0x45/0x57
Mar 23 13:10:01 server1 kernel: [ 704.313469] [<ffffffff8103b031>]
warn_slowpath_common+0x97/0xb1
Mar 23 13:10:01 server1 kernel: [ 704.313551] [<ffffffffa03126f6>] ?
tree_insert_offset+0x7d/0xc3 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.313627] [<ffffffff8103b060>]
warn_slowpath_null+0x15/0x17
Mar 23 13:10:01 server1 kernel: [ 704.313707] [<ffffffffa03126f6>]
tree_insert_offset+0x7d/0xc3 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.313788] [<ffffffffa0313142>]
link_free_space+0x27/0x3c [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.313868] [<ffffffffa03143cb>]
__btrfs_add_free_space+0x354/0x39d [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.313952] [<ffffffffa02f2864>] ?
free_extent_state.part.29+0x34/0x39 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314062] [<ffffffffa02f2864>] ?
free_extent_state.part.29+0x34/0x39 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314170] [<ffffffffa02c16b4>] ?
block_group_cache_tree_search+0x8e/0xbd [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314279] [<ffffffffa02c5518>]
unpin_extent_range.isra.78+0xa6/0x199 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314387] [<ffffffffa02c9aa2>]
btrfs_finish_extent_commit+0xcb/0xea [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314497] [<ffffffffa02dbc57>]
btrfs_commit_transaction+0x850/0x9e1 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314606] [<ffffffffa02d9bf0>]
transaction_kthread+0xef/0x1c3 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314687] [<ffffffffa02d9b01>] ?
open_ctree+0x1d47/0x1d47 [btrfs]
Mar 23 13:10:01 server1 kernel: [ 704.314763] [<ffffffff810501a3>]
kthread+0xcd/0xd5
Mar 23 13:10:01 server1 kernel: [ 704.314836] [<ffffffff810500d6>] ?
kthread_freezable_should_stop+0x43/0x43
Mar 23 13:10:01 server1 kernel: [ 704.314913] [<ffffffff813c7848>]
ret_from_fork+0x58/0x90
Mar 23 13:10:01 server1 kernel: [ 704.314987] [<ffffffff810500d6>] ?
kthread_freezable_should_stop+0x43/0x43
Mar 23 13:10:01 server1 kernel: [ 704.315063] ---[ end trace
695f505b58a81c8d ]---
Mar 23 13:10:01 server1 kernel: [ 704.315135] BTRFS: unable to add free
space :-17
Mar 23 13:10:33 server1 kernel: [ 736.510895] BTRFS: unable to add free
space :-17
Mar 23 13:11:03 server1 kernel: [ 765.780069] BTRFS: unable to add free
space :-17
Mar 23 13:11:13 server1 kernel: [ 776.030671] BTRFS: unable to add free
space :-17
Mar 23 13:12:39 server1 kernel: [ 861.791031] BTRFS: unable to add free
space :-17
Mar 23 13:13:29 server1 kernel: [ 911.761852] BTRFS: unable to add free
space :-17
Mar 23 13:13:53 server1 kernel: [ 936.124674] BTRFS: unable to add free
space :-17
--
Tomasz Chmielewski
http://www.sslrack.com
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS: unable to add free space :-17
2015-03-23 12:19 BTRFS: unable to add free space :-17 Tomasz Chmielewski
@ 2015-03-23 12:35 ` Chris Mason
2015-03-23 13:48 ` Chris Mason
0 siblings, 1 reply; 5+ messages in thread
From: Chris Mason @ 2015-03-23 12:35 UTC (permalink / raw)
To: Tomasz Chmielewski; +Cc: linux-btrfs
On Mon, Mar 23, 2015 at 8:19 AM, Tomasz Chmielewski <tch@virtall.com>
wrote:
> Got this with 4.0.0-rc5 when doing a degraded mount:
>
> Mar 23 13:09:22 server1 kernel: [ 665.197957] BTRFS info (device
> sdb4): allowing degraded mounts
> Mar 23 13:09:22 server1 kernel: [ 665.198030] BTRFS info (device
> sdb4): disk space caching is enabled
> Mar 23 13:09:22 server1 kernel: [ 665.213163] BTRFS warning (device
> sdb4): devid 2 missing
> Mar 23 13:09:22 server1 kernel: [ 665.260077] BTRFS: bdev (null)
> errs: wr 1, rd 1, flush 0, corrupt 0, gen 0
> Mar 23 13:10:01 server1 kernel: [ 704.310874] ------------[ cut here
> ]------------
> Mar 23 13:10:01 server1 kernel: [ 704.310936] WARNING: CPU: 1 PID:
> 4706 at fs/btrfs/free-space-cache.c:1349 tree_insert_offset+0x7d/0xc3
> [btrfs]()
> Mar 23 13:10:01 server1 kernel: [ 704.310989] Modules linked in:
> ipv6 cpufreq_stats cpufreq_powersave cpufreq_conservative btrfs xor
> raid6_pq zlib_deflate ext3 jbd loop 8250_fintek i2c_i801 parport_pc
> tpm_infineon tpm_tis tpm lpc_ich ehci_pci ehci_hcd mfd_core i2c_core
> parport pcspkr acpi_cpufreq button video ext4 crc16 jbd2 mbcache
> raid1 sg sd_mod ahci libahci libata scsi_mod r8169 mii
> Mar 23 13:10:01 server1 kernel: [ 704.312632] CPU: 1 PID: 4706 Comm:
> btrfs-transacti Not tainted 4.0.0-rc5 #1
> Mar 23 13:10:01 server1 kernel: [ 704.312680] Hardware name: System
> manufacturer System Product Name/P8H67-M PRO, BIOS 1106 10/17/2011
> Mar 23 13:10:01 server1 kernel: [ 704.312732] 0000000000000009
> ffff880819917c18 ffffffff813c2f57 ffff88083fa4d801
> Mar 23 13:10:01 server1 kernel: [ 704.312928] 0000000000000000
> ffff880819917c58 ffffffff8103b031 ffff880036eb9540
> Mar 23 13:10:01 server1 kernel: [ 704.313124] ffffffffa03126f6
> 00000000ffffffef ffff880036eb9540 000001dd651b4000
> Mar 23 13:10:01 server1 kernel: [ 704.313321] Call Trace:
> Mar 23 13:10:01 server1 kernel: [ 704.313394] [<ffffffff813c2f57>]
> dump_stack+0x45/0x57
> Mar 23 13:10:01 server1 kernel: [ 704.313469] [<ffffffff8103b031>]
> warn_slowpath_common+0x97/0xb1
> Mar 23 13:10:01 server1 kernel: [ 704.313551] [<ffffffffa03126f6>]
> ? tree_insert_offset+0x7d/0xc3 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.313627] [<ffffffff8103b060>]
> warn_slowpath_null+0x15/0x17
> Mar 23 13:10:01 server1 kernel: [ 704.313707] [<ffffffffa03126f6>]
> tree_insert_offset+0x7d/0xc3 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.313788] [<ffffffffa0313142>]
> link_free_space+0x27/0x3c [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.313868] [<ffffffffa03143cb>]
> __btrfs_add_free_space+0x354/0x39d [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.313952] [<ffffffffa02f2864>]
> ? free_extent_state.part.29+0x34/0x39 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314062] [<ffffffffa02f2864>]
> ? free_extent_state.part.29+0x34/0x39 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314170] [<ffffffffa02c16b4>]
> ? block_group_cache_tree_search+0x8e/0xbd [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314279] [<ffffffffa02c5518>]
> unpin_extent_range.isra.78+0xa6/0x199 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314387] [<ffffffffa02c9aa2>]
> btrfs_finish_extent_commit+0xcb/0xea [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314497] [<ffffffffa02dbc57>]
> btrfs_commit_transaction+0x850/0x9e1 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314606] [<ffffffffa02d9bf0>]
> transaction_kthread+0xef/0x1c3 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314687] [<ffffffffa02d9b01>]
> ? open_ctree+0x1d47/0x1d47 [btrfs]
> Mar 23 13:10:01 server1 kernel: [ 704.314763] [<ffffffff810501a3>]
> kthread+0xcd/0xd5
> Mar 23 13:10:01 server1 kernel: [ 704.314836] [<ffffffff810500d6>]
> ? kthread_freezable_should_stop+0x43/0x43
> Mar 23 13:10:01 server1 kernel: [ 704.314913] [<ffffffff813c7848>]
> ret_from_fork+0x58/0x90
> Mar 23 13:10:01 server1 kernel: [ 704.314987] [<ffffffff810500d6>]
> ? kthread_freezable_should_stop+0x43/0x43
> Mar 23 13:10:01 server1 kernel: [ 704.315063] ---[ end trace
> 695f505b58a81c8d ]---
> Mar 23 13:10:01 server1 kernel: [ 704.315135] BTRFS: unable to add
> free space :-17
> Mar 23 13:10:33 server1 kernel: [ 736.510895] BTRFS: unable to add
> free space :-17
> Mar 23 13:11:03 server1 kernel: [ 765.780069] BTRFS: unable to add
> free space :-17
> Mar 23 13:11:13 server1 kernel: [ 776.030671] BTRFS: unable to add
> free space :-17
> Mar 23 13:12:39 server1 kernel: [ 861.791031] BTRFS: unable to add
> free space :-17
> Mar 23 13:13:29 server1 kernel: [ 911.761852] BTRFS: unable to add
> free space :-17
> Mar 23 13:13:53 server1 kernel: [ 936.124674] BTRFS: unable to add
> free space :-17
Do you get this every time, even after going back to rc4?
It should be caused by this commit, but I really don't get how. I'll
dig deeper, but if you can trigger this consistently I'd love to hear
if reverting this commit helps.
commit ea526d18990018f224e5734748975bea1824545f
Author: Josef Bacik <jbacik@fb.com>
Date: Fri Mar 13 16:40:45 2015 -0400
Btrfs: fix ASSERT(list_empty(&cur_trans->dirty_bgs_list)
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS: unable to add free space :-17
2015-03-23 12:35 ` Chris Mason
@ 2015-03-23 13:48 ` Chris Mason
2015-03-23 15:33 ` Tomasz Chmielewski
0 siblings, 1 reply; 5+ messages in thread
From: Chris Mason @ 2015-03-23 13:48 UTC (permalink / raw)
To: Tomasz Chmielewski; +Cc: linux-btrfs
On Mon, Mar 23, 2015 at 8:35 AM, Chris Mason <clm@fb.com> wrote:
>
>
> On Mon, Mar 23, 2015 at 8:19 AM, Tomasz Chmielewski <tch@virtall.com>
> wrote:
>> Got this with 4.0.0-rc5 when doing a degraded mount:
> Do you get this every time, even after going back to rc4?
>
> It should be caused by this commit, but I really don't get how. I'll
> dig deeper, but if you can trigger this consistently I'd love to hear
> if reverting this commit helps.
>
> commit ea526d18990018f224e5734748975bea1824545f
> Author: Josef Bacik <jbacik@fb.com>
> Date: Fri Mar 13 16:40:45 2015 -0400
>
> Btrfs: fix ASSERT(list_empty(&cur_trans->dirty_bgs_list)
To test things, you'll need to revert this one before the ASSERT fix:
commit dcdf7f6ddba006f3482ebee73dfa6b75aec5f07b
Author: Josef Bacik <jbacik@fb.com>
Date: Mon Mar 2 16:37:31 2015 -0500
Btrfs: prepare block group cache before writing
Writing the block group cache will modify the extent tree quite a
bit because it
truncates the old space cache and pre-allocates new stuff. To try
and cut down
on the churn lets do the setup dance first, then later on hopefully
we can avoid
looping with newly dirtied roots. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS: unable to add free space :-17
2015-03-23 13:48 ` Chris Mason
@ 2015-03-23 15:33 ` Tomasz Chmielewski
2015-03-23 16:01 ` Chris Mason
0 siblings, 1 reply; 5+ messages in thread
From: Tomasz Chmielewski @ 2015-03-23 15:33 UTC (permalink / raw)
To: Chris Mason; +Cc: linux-btrfs
On 2015-03-23 22:48, Chris Mason wrote:
> On Mon, Mar 23, 2015 at 8:35 AM, Chris Mason <clm@fb.com> wrote:
>>
>>
>> On Mon, Mar 23, 2015 at 8:19 AM, Tomasz Chmielewski <tch@virtall.com>
>> wrote:
>>> Got this with 4.0.0-rc5 when doing a degraded mount:
>> Do you get this every time, even after going back to rc4?
Actually, I didn't try yet (going back to 4.0.0-rc4).
Shortly after, it errored with:
[ 4450.519046] ------------[ cut here ]------------
[ 4450.519066] WARNING: CPU: 4 PID: 4734 at fs/btrfs/super.c:260
__btrfs_abort_transaction+0x4c/0x10e [btrfs]()
[ 4450.519081] BTRFS: Transaction aborted (error -17)
[ 4450.519082] Modules linked in: ipv6 cpufreq_stats cpufreq_powersave
cpufreq_conservative btrfs xor raid6_pq zlib_deflate ext3 jbd loop
tpm_infineon tpm_tis i2c_i801 parport_pc parport 8250_fintek lpc_ich
pcspkr tpm video button acpi_cpufreq i2c_core mfd_core ehci_pci ehci_hcd
ext4 crc16 jbd2 mbcache raid1 sg sd_mod ahci libahci libata scsi_mod
r8169 mii
[ 4450.519157] CPU: 4 PID: 4734 Comm: kworker/u16:5 Not tainted
4.0.0-rc5 #1
[ 4450.519167] Hardware name: System manufacturer System Product
Name/P8H67-M PRO, BIOS 1106 10/17/2011
[ 4450.519190] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper
[btrfs]
[ 4450.519201] 0000000000000009 ffff88074e0a7c58 ffffffff813c2f57
0000000000000000
[ 4450.519215] ffff88074e0a7ca8 ffff88074e0a7c98 ffffffff8103b031
ffff8807b2638e68
[ 4450.519255] ffffffffa02b6356 00000000ffffffef ffff88081bb7e000
ffff880701ba3210
[ 4450.519323] Call Trace:
[ 4450.519357] [<ffffffff813c2f57>] dump_stack+0x45/0x57
[ 4450.519394] [<ffffffff8103b031>] warn_slowpath_common+0x97/0xb1
[ 4450.519434] [<ffffffffa02b6356>] ?
__btrfs_abort_transaction+0x4c/0x10e [btrfs]
[ 4450.519501] [<ffffffff8103b0df>] warn_slowpath_fmt+0x41/0x43
[ 4450.519540] [<ffffffffa02b6356>]
__btrfs_abort_transaction+0x4c/0x10e [btrfs]
[ 4450.519610] [<ffffffffa02cd6d7>] btrfs_run_delayed_refs+0x90/0x21b
[btrfs]
[ 4450.519653] [<ffffffffa02cda60>] delayed_ref_async_start+0x37/0x76
[btrfs]
[ 4450.519699] [<ffffffffa0302c67>] normal_work_helper+0xb5/0x16a
[btrfs]
[ 4450.519742] [<ffffffffa0302e28>] btrfs_extent_refs_helper+0xd/0xf
[btrfs]
[ 4450.519782] [<ffffffff8104c16d>] process_one_work+0x187/0x2b2
[ 4450.519819] [<ffffffff8104c503>] worker_thread+0x241/0x33e
[ 4450.519856] [<ffffffff8104c2c2>] ? process_scheduled_works+0x2a/0x2a
[ 4450.519894] [<ffffffff810501a3>] kthread+0xcd/0xd5
[ 4450.519930] [<ffffffff810500d6>] ?
kthread_freezable_should_stop+0x43/0x43
[ 4450.519969] [<ffffffff813c7848>] ret_from_fork+0x58/0x90
[ 4450.520005] [<ffffffff810500d6>] ?
kthread_freezable_should_stop+0x43/0x43
[ 4450.520044] ---[ end trace 1aff120928ea0fd5 ]---
[ 4450.520079] BTRFS: error (device sdb4) in
btrfs_run_delayed_refs:2790: errno=-17 Object already exists
[ 4450.520148] BTRFS info (device sdb4): forced readonly
[ 4450.641829] BTRFS: error (device sdb4) in
btrfs_run_delayed_refs:2790: errno=-17 Object already exists
After reboot to 4.0.0-rc5, I didn't see "unable to add free space :-17"
anymore. However, it went again to "forced readonly" some time later.
I'll try going to 4.0.0-rc4 now.
--
Tomasz Chmielewski
http://www.sslrack.com
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS: unable to add free space :-17
2015-03-23 15:33 ` Tomasz Chmielewski
@ 2015-03-23 16:01 ` Chris Mason
0 siblings, 0 replies; 5+ messages in thread
From: Chris Mason @ 2015-03-23 16:01 UTC (permalink / raw)
To: Tomasz Chmielewski; +Cc: linux-btrfs
On Mon, Mar 23, 2015 at 11:33 AM, Tomasz Chmielewski <tch@virtall.com>
wrote:
> On 2015-03-23 22:48, Chris Mason wrote:
>> On Mon, Mar 23, 2015 at 8:35 AM, Chris Mason <clm@fb.com> wrote:
>>>
>>>
>>> On Mon, Mar 23, 2015 at 8:19 AM, Tomasz Chmielewski
>>> <tch@virtall.com> wrote:
>>>> Got this with 4.0.0-rc5 when doing a degraded mount:
>>> Do you get this every time, even after going back to rc4?
>
> Actually, I didn't try yet (going back to 4.0.0-rc4).
>
> Shortly after, it errored with:
>
> [ 4450.519046] ------------[ cut here ]------------
> [ 4450.519066] WARNING: CPU: 4 PID: 4734 at fs/btrfs/super.c:260
> __btrfs_abort_transaction+0x4c/0x10e [btrfs]()
> [ 4450.519081] BTRFS: Transaction aborted (error -17)
> [ 4450.519082] Modules linked in: ipv6 cpufreq_stats
> cpufreq_powersave cpufreq_conservative btrfs xor raid6_pq
> zlib_deflate ext3 jbd loop tpm_infineon tpm_tis i2c_i801 parport_pc
> parport 8250_fintek lpc_ich pcspkr tpm video button acpi_cpufreq
> i2c_core mfd_core ehci_pci ehci_hcd ext4 crc16 jbd2 mbcache raid1 sg
> sd_mod ahci libahci libata scsi_mod r8169 mii
> [ 4450.519157] CPU: 4 PID: 4734 Comm: kworker/u16:5 Not tainted
> 4.0.0-rc5 #1
> [ 4450.519167] Hardware name: System manufacturer System Product
> Name/P8H67-M PRO, BIOS 1106 10/17/2011
> [ 4450.519190] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper
> [btrfs]
> [ 4450.519201] 0000000000000009 ffff88074e0a7c58 ffffffff813c2f57
> 0000000000000000
> [ 4450.519215] ffff88074e0a7ca8 ffff88074e0a7c98 ffffffff8103b031
> ffff8807b2638e68
> [ 4450.519255] ffffffffa02b6356 00000000ffffffef ffff88081bb7e000
> ffff880701ba3210
> [ 4450.519323] Call Trace:
> [ 4450.519357] [<ffffffff813c2f57>] dump_stack+0x45/0x57
> [ 4450.519394] [<ffffffff8103b031>] warn_slowpath_common+0x97/0xb1
> [ 4450.519434] [<ffffffffa02b6356>] ?
> __btrfs_abort_transaction+0x4c/0x10e [btrfs]
> [ 4450.519501] [<ffffffff8103b0df>] warn_slowpath_fmt+0x41/0x43
> [ 4450.519540] [<ffffffffa02b6356>]
> __btrfs_abort_transaction+0x4c/0x10e [btrfs]
> [ 4450.519610] [<ffffffffa02cd6d7>]
> btrfs_run_delayed_refs+0x90/0x21b [btrfs]
> [ 4450.519653] [<ffffffffa02cda60>]
> delayed_ref_async_start+0x37/0x76 [btrfs]
> [ 4450.519699] [<ffffffffa0302c67>] normal_work_helper+0xb5/0x16a
> [btrfs]
> [ 4450.519742] [<ffffffffa0302e28>] btrfs_extent_refs_helper+0xd/0xf
> [btrfs]
> [ 4450.519782] [<ffffffff8104c16d>] process_one_work+0x187/0x2b2
> [ 4450.519819] [<ffffffff8104c503>] worker_thread+0x241/0x33e
> [ 4450.519856] [<ffffffff8104c2c2>] ?
> process_scheduled_works+0x2a/0x2a
> [ 4450.519894] [<ffffffff810501a3>] kthread+0xcd/0xd5
> [ 4450.519930] [<ffffffff810500d6>] ?
> kthread_freezable_should_stop+0x43/0x43
> [ 4450.519969] [<ffffffff813c7848>] ret_from_fork+0x58/0x90
> [ 4450.520005] [<ffffffff810500d6>] ?
> kthread_freezable_should_stop+0x43/0x43
> [ 4450.520044] ---[ end trace 1aff120928ea0fd5 ]---
> [ 4450.520079] BTRFS: error (device sdb4) in
> btrfs_run_delayed_refs:2790: errno=-17 Object already exists
> [ 4450.520148] BTRFS info (device sdb4): forced readonly
> [ 4450.641829] BTRFS: error (device sdb4) in
> btrfs_run_delayed_refs:2790: errno=-17 Object already exists
>
>
>
> After reboot to 4.0.0-rc5, I didn't see "unable to add free space
> :-17" anymore. However, it went again to "forced readonly" some time
> later.
Do you have messages for the second time it was forced readonly?
-chris
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2015-03-23 12:19 BTRFS: unable to add free space :-17 Tomasz Chmielewski
2015-03-23 12:35 ` Chris Mason
2015-03-23 13:48 ` Chris Mason
2015-03-23 15:33 ` Tomasz Chmielewski
2015-03-23 16:01 ` Chris Mason
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