WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Jordan Windsor]

Hello,
My computer locked up and I had to press the reset button.
Ever since then I can't mount the btrfs filesystem, here's the output:

[   37.645583] ------------[ cut here ]------------
[   37.645598] WARNING: at fs/btrfs/free-space-cache.c:1887
btrfs_remove_free_space+0x329/0x350 [btrfs]()
[   37.645600] Modules linked in: btrfs zlib_deflate libcrc32c ext4
jbd2 mbcache crc16 snd_hda_codec_realtek rc_dib0700_rc5 mt2266
dvb_usb_dib0700 dib3000mc dib8000 dib0070 dib7000m dib7000p
dibx000_common dib0090 dvb_usb dvb_core rc_core microcode joydev
usb_storage uas coretemp acpi_cpufreq mperf ppdev nvidia(PO) 8139too
8139cp mii iTCO_wdt i2c_i801 i2c_core iTCO_vendor_support serio_raw
i7core_edac edac_core evdev pcspkr processor parport_pc parport
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer
snd soundcore button reiserfs aes_x86_64 cryptd aes_generic xts
gf128mul dm_crypt dm_mod usbhid hid sr_mod sd_mod cdrom pata_jmicron
pata_acpi uhci_hcd ata_piix ata_generic ahci libahci libata ehci_hcd
crc32c_intel usbcore scsi_mod usb_common floppy
[   37.645651] Pid: 304, comm: mount Tainted: P           O 3.4.4-2-ck #1
[   37.645653] Call Trace:
[   37.645659]  [<ffffffff810515cf>] warn_slowpath_common+0x7f/0xc0
[   37.645662]  [<ffffffff8105162a>] warn_slowpath_null+0x1a/0x20
[   37.645670]  [<ffffffffa0f4a159>] btrfs_remove_free_space+0x329/0x350 [btrfs]
[   37.645674]  [<ffffffff81073bb0>] ? abort_exclusive_wait+0xb0/0xb0
[   37.645682]  [<ffffffffa0efaa6f>]
btrfs_alloc_logged_file_extent+0x1bf/0x1e0 [btrfs]
[   37.645688]  [<ffffffffa0ee7bfa>] ? btrfs_free_path+0x2a/0x40 [btrfs]
[   37.645697]  [<ffffffffa0f44c5e>] replay_one_extent+0x5be/0x620 [btrfs]
[   37.645701]  [<ffffffff81179f55>] ? iput+0x105/0x210
[   37.645710]  [<ffffffffa0f4549b>] replay_one_buffer+0x27b/0x350 [btrfs]
[   37.645719]  [<ffffffffa0f302bd>] ? alloc_extent_buffer+0x9d/0x5c0 [btrfs]
[   37.645728]  [<ffffffffa0f42d92>] walk_down_log_tree+0x202/0x3c0 [btrfs]
[   37.645736]  [<ffffffffa0f42fed>] walk_log_tree+0x9d/0x1f0 [btrfs]
[   37.645745]  [<ffffffffa0f46f4b>] btrfs_recover_log_trees+0x21b/0x3a0 [btrfs]
[   37.645754]  [<ffffffffa0f45220>] ? replay_one_dir_item+0xe0/0xe0 [btrfs]
[   37.645763]  [<ffffffffa0f0883d>] open_ctree+0x14ed/0x1ac0 [btrfs]
[   37.645767]  [<ffffffff8121e101>] ? disk_name+0x61/0xc0
[   37.645773]  [<ffffffffa0ee5836>] btrfs_mount+0x5b6/0x6a0 [btrfs]
[   37.645776]  [<ffffffff8113f400>] ? alloc_pages_current+0xb0/0x120
[   37.645780]  [<ffffffff81163533>] mount_fs+0x43/0x1b0
[   37.645783]  [<ffffffff8117d740>] vfs_kern_mount+0x70/0x100
[   37.645786]  [<ffffffff8117dc64>] do_kern_mount+0x54/0x110
[   37.645788]  [<ffffffff8117f55a>] do_mount+0x26a/0x850
[   37.645791]  [<ffffffff81101e1e>] ? __get_free_pages+0xe/0x50
[   37.645794]  [<ffffffff8117f15a>] ? copy_mount_options+0x3a/0x180
[   37.645797]  [<ffffffff8117fc7d>] sys_mount+0x8d/0xe0
[   37.645801]  [<ffffffff814626e9>] system_call_fastpath+0x16/0x1b
[   37.645802] ---[ end trace 98bf42a1cdef3f88 ]---
[   37.645812] ------------[ cut here ]------------
[   37.646716] kernel BUG at fs/btrfs/extent-tree.c:6107!
[   37.647722] invalid opcode: 0000 [#1] PREEMPT SMP
[   37.648763] CPU 1
[   37.649156] Modules linked in: btrfs zlib_deflate libcrc32c ext4
jbd2 mbcache crc16 snd_hda_codec_realtek rc_dib0700_rc5 mt2266
dvb_usb_dib0700 dib3000mc dib8000 dib0070 dib7000m dib7000p
dibx000_common dib0090 dvb_usb dvb_core rc_core microcode joydev
usb_storage uas coretemp acpi_cpufreq mperf ppdev nvidia(PO) 8139too
8139cp mii iTCO_wdt i2c_i801 i2c_core iTCO_vendor_support serio_raw
i7core_edac edac_core evdev pcspkr processor parport_pc parport
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer
snd soundcore button reiserfs aes_x86_64 cryptd aes_generic xts
gf128mul dm_crypt dm_mod usbhid hid sr_mod sd_mod cdrom pata_jmicron
pata_acpi uhci_hcd ata_piix ata_generic ahci libahci libata ehci_hcd
crc32c_intel usbcore scsi_mod usb_common floppy
[   37.665300]
[   37.665591] Pid: 304, comm: mount Tainted: P        W  O 3.4.4-2-ck #1
[   37.666973] RIP: 0010:[<ffffffffa0efaa77>]  [<ffffffffa0efaa77>]
btrfs_alloc_logged_file_extent+0x1c7/0x1e0 [btrfs]
[   37.669058] RSP: 0018:ffff880118649748  EFLAGS: 00010282
[   37.670098] RAX: 00000000ffffffea RBX: ffff88010ff1a000 RCX: 000000000000000e
[   37.671495] RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff88010fef6840
[   37.672892] RBP: ffff8801186497c8 R08: 0000000000000000 R09: 0000000000000000
[   37.674289] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880118649883
[   37.675687] R13: 0000000000000000 R14: 00000019cf4be000 R15: ffff88010fc95800
[   37.731396] FS:  00007fb10edfb740(0000) GS:ffff88011fc40000(0000)
knlGS:0000000000000000
[   37.788242] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   37.788243] CR2: 00007f5b18c9c15c CR3: 0000000110a7d000 CR4: 00000000000007e0
[   37.788245] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   37.788247] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   37.788249] Process mount (pid: 304, threadinfo ffff880118648000,
task ffff880118a8d620)
[   37.788250] Stack:
[   37.788251]  0000000000000001 0000000000015000 ffff880118649778
ffffffffa0ee7bfa
[   37.788253]  000000002ee71000 000000000013ffbd 0000000000000005
ffff8801149dc000
[   37.788256]  0000000000015000 00ff880114ac62f0 a800000019cf4be0
ffff88010fc95800
[   37.788258] Call Trace:
[   37.788264]  [<ffffffffa0ee7bfa>] ? btrfs_free_path+0x2a/0x40 [btrfs]
[   37.788272]  [<ffffffffa0f44c5e>] replay_one_extent+0x5be/0x620 [btrfs]
[   37.788275]  [<ffffffff81179f55>] ? iput+0x105/0x210
[   37.788283]  [<ffffffffa0f4549b>] replay_one_buffer+0x27b/0x350 [btrfs]
[   37.788292]  [<ffffffffa0f302bd>] ? alloc_extent_buffer+0x9d/0x5c0 [btrfs]
[   37.788300]  [<ffffffffa0f42d92>] walk_down_log_tree+0x202/0x3c0 [btrfs]
[   37.788309]  [<ffffffffa0f42fed>] walk_log_tree+0x9d/0x1f0 [btrfs]
[   37.788317]  [<ffffffffa0f46f4b>] btrfs_recover_log_trees+0x21b/0x3a0 [btrfs]
[   37.788326]  [<ffffffffa0f45220>] ? replay_one_dir_item+0xe0/0xe0 [btrfs]
[   37.788334]  [<ffffffffa0f0883d>] open_ctree+0x14ed/0x1ac0 [btrfs]
[   37.788338]  [<ffffffff8121e101>] ? disk_name+0x61/0xc0
[   37.788343]  [<ffffffffa0ee5836>] btrfs_mount+0x5b6/0x6a0 [btrfs]
[   37.788346]  [<ffffffff8113f400>] ? alloc_pages_current+0xb0/0x120
[   37.788348]  [<ffffffff81163533>] mount_fs+0x43/0x1b0
[   37.788351]  [<ffffffff8117d740>] vfs_kern_mount+0x70/0x100
[   37.788353]  [<ffffffff8117dc64>] do_kern_mount+0x54/0x110
[   37.788355]  [<ffffffff8117f55a>] do_mount+0x26a/0x850
[   37.788358]  [<ffffffff81101e1e>] ? __get_free_pages+0xe/0x50
[   37.788360]  [<ffffffff8117f15a>] ? copy_mount_options+0x3a/0x180
[   37.788362]  [<ffffffff8117fc7d>] sys_mount+0x8d/0xe0
[   37.788365]  [<ffffffff814626e9>] system_call_fastpath+0x16/0x1b
[   37.788366] Code: 0b 0f 1f 00 48 8d bb 80 00 00 00 e8 24 63 ff ff
85 c0 74 1d 48 8b 55 c0 4c 89 f6 48 89 df e8 c1 f3 04 00 85 c0 0f 84
29 ff ff ff <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 66 66 66 66 66 66 2e 0f 1f
84 00
[   37.788382] RIP  [<ffffffffa0efaa77>]
btrfs_alloc_logged_file_extent+0x1c7/0x1e0 [btrfs]
[   37.788389]  RSP <ffff880118649748>
[   37.788468] ---[ end trace 98bf42a1cdef3f89 ]---
[   38.955216] Adding 6143996k swap on /dev/sda4.  Priority:-1
extents:1 across:6143996k
[   41.323339] 8139too 0000:03:03.0: eth0: link up, 100Mbps,
full-duplex, lpa 0x45E1
[   51.993170] eth0: no IPv6 routers present
[   60.972748] NVRM: Your system is not currently configured to drive
a VGA console
[   60.972755] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver
[   60.972760] NVRM: requires the use of a text-mode VGA console. Use
of other console
[   60.972764] NVRM: drivers including, but not limited to, vesafb,
may result in
[   60.972767] NVRM: corruption and stability problems, and is not supported.
[   63.862595] fuse init (API version 7.18)
[   69.223888] EXT4-fs (sda1): re-mounted. Opts: commit=0

Thanks.

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Duncan]

Jordan Windsor posted on Wed, 27 Jun 2012 13:16:44 +0930 as excerpted:

> My computer locked up and I had to press the reset button.
> Ever since then I can't mount the btrfs filesystem, here's the output:

Are you aware of the btrfs wiki and have you read up on btrfs there, yet?

https://btrfs.wiki.kernel.org/index.php/Main_Page

In particular, check the mount options listed there.  I had a similar 
problem when I was testing here (during the 3.4 kernel dev cycle, I 
decided btrfs was still too experimental for my current needs so am back 
on more reliable reiserfs for now), which turned out to be a corrupted 
space-cache.  Mounting with the listed nospace_cache option allowed the 
filesystem to mount and self-repair, after which I could mount it 
normally again.

https://btrfs.wiki.kernel.org/index.php/Mount_options

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Josef Bacik]

On Tue, Jun 26, 2012 at 09:46:44PM -0600, Jordan Windsor wrote:
> Hello,
> My computer locked up and I had to press the reset button.
> Ever since then I can't mount the btrfs filesystem, here's the output:
> 

Already fixed, go to the newest kernel you can get ahold of, 3.5-rc4 is the
newest I think?  Thanks,

Josef

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Jordan Windsor]

On Wed, Jun 27, 2012 at 11:18 PM, Josef Bacik <jbacik@fusionio.com> wrote:
> On Tue, Jun 26, 2012 at 09:46:44PM -0600, Jordan Windsor wrote:
>> Hello,
>> My computer locked up and I had to press the reset button.
>> Ever since then I can't mount the btrfs filesystem, here's the output:
>>
>
> Already fixed, go to the newest kernel you can get ahold of, 3.5-rc4 is the
> newest I think?  Thanks,
>
> Josef

Hello,
I get the same problem with linux-mainline from AUR (latest), When I
try mounting with "-o clear_cache" the process hangs and I can't c-Z
or c-C it also I can't kill it in another terminal either.
Thanks.

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Chris Samuel]

On 29/06/12 15:36, Jordan Windsor wrote:

> I get the same problem with linux-mainline from AUR (latest)

What does uname -a say ?

cheers!
Chris
-- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Jordan Windsor]

On Fri, Jun 29, 2012 at 3:09 PM, Chris Samuel <chris@csamuel.org> wrote:
> On 29/06/12 15:36, Jordan Windsor wrote:
>
>> I get the same problem with linux-mainline from AUR (latest)
>
> What does uname -a say ?
>
> cheers!
> Chris
> --
>  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC
>
>

Hello,
It says:
Linux archpc 3.5.0-1-mainline #1 SMP PREEMPT Fri Jun 29 02:09:43 CST
2012 x86_64 GNU/Linux

Thanks.

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Josef Bacik]

On Fri, Jun 29, 2012 at 12:35:01AM -0600, Jordan Windsor wrote:
> On Fri, Jun 29, 2012 at 3:09 PM, Chris Samuel <chris@csamuel.org> wrote:
> > On 29/06/12 15:36, Jordan Windsor wrote:
> >
> >> I get the same problem with linux-mainline from AUR (latest)
> >
> > What does uname -a say ?
> >
> > cheers!
> > Chris
> > --
> >  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC
> >
> >
> 
> Hello,
> It says:
> Linux archpc 3.5.0-1-mainline #1 SMP PREEMPT Fri Jun 29 02:09:43 CST
> 2012 x86_64 GNU/Linux
> 

Oh crap I'm sorry I thought this was in mainline already but it's not, it's in
btrfs-next, pull down this git tree and you should be good to go

git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git

Thanks,

Josef

Re: WARNING: at fs/btrfs/free-space-cache.c:1887 after hard shutdown.

[Jordan Windsor]

On Fri, Jun 29, 2012 at 10:34 PM, Josef Bacik <jbacik@fusionio.com> wrote:
> On Fri, Jun 29, 2012 at 12:35:01AM -0600, Jordan Windsor wrote:
>> On Fri, Jun 29, 2012 at 3:09 PM, Chris Samuel <chris@csamuel.org> wrote:
>> > On 29/06/12 15:36, Jordan Windsor wrote:
>> >
>> >> I get the same problem with linux-mainline from AUR (latest)
>> >
>> > What does uname -a say ?
>> >
>> > cheers!
>> > Chris
>> > --
>> >  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC
>> >
>> >
>>
>> Hello,
>> It says:
>> Linux archpc 3.5.0-1-mainline #1 SMP PREEMPT Fri Jun 29 02:09:43 CST
>> 2012 x86_64 GNU/Linux
>>
>
> Oh crap I'm sorry I thought this was in mainline already but it's not, it's in
> btrfs-next, pull down this git tree and you should be good to go
>
> git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git
>
> Thanks,
>
> Josef

Hello,
I got it working now thanks!