Hi,
I just got the following warning on a compressed btrfs filesystem, while writing on it
until no remaining space was available.
Looks like a bit verbose "disk full" message, is it expected behavior?
[22403.015529] ------------[ cut here ]------------
[22403.015572] WARNING: at /home/arnd/Projekte/kernel/linux-2.6/fs/btrfs/super.c:219 __btrfs_abort_transaction+0xae/0xc0 [btrfs]()
[22403.015577] Hardware name: 4384GEG
[22403.015579] btrfs: Transaction aborted
[22403.015581] Modules linked in: dm_crypt ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables joydev bridge stp llc kvm_intel kvm bnep rfcomm bluetooth binfmt_misc arc4 snd_hda_codec_hdmi snd_hda_codec_conexant coretemp snd_hda_intel thinkpad_acpi microcode snd_hda_codec snd_hwdep snd_pcm qcserial usb_wwan psmouse usbserial snd_seq_midi serio_raw snd_rawmidi iwlwifi snd_seq_midi_event snd_seq intel_ips mac80211 snd_timer snd_seq_device cfg80211 snd snd_page_alloc mei(C) soundcore tpm_tis nvram btrfs zlib_deflate libcrc32c mxm_wmi ghash_clmulni_intel aesni_intel cryptd aes_x86_64 i915 drm_kms_helper sdhci_pci sdhci drm firewire_ohci i2c_algo_bit firewire_core crc_itu_t ahci libahci wmi video e1000e
[22403.015668] Pid: 24802, comm: btrfs-delalloc- Tainted: G C 3.4.0-rc6aha+ #8
[22403.015671] Call Trace:
[22403.015683] [<ffffffff8104e35f>] warn_slowpath_common+0x7f/0xc0
[22403.015689] [<ffffffff8104e456>] warn_slowpath_fmt+0x46/0x50
[22403.015711] [<ffffffffa01c63fd>] ? btrfs_reserve_extent+0xed/0x250 [btrfs]
[22403.015728] [<ffffffffa01b1bde>] __btrfs_abort_transaction+0xae/0xc0 [btrfs]
[22403.015754] [<ffffffffa01dea12>] submit_compressed_extents+0x212/0x480 [btrfs]
[22403.015781] [<ffffffffa01ded04>] async_cow_submit+0x84/0x90 [btrfs]
[22403.015807] [<ffffffffa0206988>] run_ordered_completions+0x78/0xf0 [btrfs]
[22403.015833] [<ffffffffa0207395>] worker_loop+0x185/0x5d0 [btrfs]
[22403.015840] [<ffffffff810792c8>] ? __wake_up_common+0x58/0x90
[22403.015867] [<ffffffffa0207210>] ? btrfs_queue_worker+0x310/0x310 [btrfs]
[22403.015873] [<ffffffff81070b83>] kthread+0x93/0xa0
[22403.015880] [<ffffffff81628224>] kernel_thread_helper+0x4/0x10
[22403.015886] [<ffffffff81070af0>] ? kthread_freezable_should_stop+0x70/0x70
[22403.015891] [<ffffffff81628220>] ? gs_change+0x13/0x13
[22403.015895] ---[ end trace 768f569fb0306239 ]---
[22403.015898] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.064892] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.094675] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.512902] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.703871] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.709637] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.721362] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.736999] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.794067] BTRFS warning (device dm-6): Aborting unused transaction.
[22403.799009] BTRFS warning (device dm-6): Aborting unused transaction.
[22404.035483] BTRFS warning (device dm-6): Aborting unused transaction.
[22404.108751] BTRFS warning (device dm-6): Aborting unused transaction.
Best regards
Arnd
On Mon, May 14, 2012 at 03:18:46PM +0200, Arnd Hannemann wrote:
> I just got the following warning on a compressed btrfs filesystem, while writing on it
> until no remaining space was available.
> Looks like a bit verbose "disk full" message, is it expected behavior?
Shouldn't be the case for regular ENOSPC (ie. when the space is reserved
in advance and with the possibility to fail early). If the transaction
is aborted, it means it's too late and there was some logic error.
Can you please describe more the fs and how did you fill it? Like single
process or multiple, dd or whatever.
thanks,
david
Hello David,
Am 14.05.2012 17:05, schrieb David Sterba:
> On Mon, May 14, 2012 at 03:18:46PM +0200, Arnd Hannemann wrote:
>> I just got the following warning on a compressed btrfs filesystem, while writing on it
>> until no remaining space was available.
>> Looks like a bit verbose "disk full" message, is it expected behavior?
>
> Shouldn't be the case for regular ENOSPC (ie. when the space is reserved
> in advance and with the possibility to fail early). If the transaction
> is aborted, it means it's too late and there was some logic error.
>
> Can you please describe more the fs and how did you fill it? Like single
> process or multiple, dd or whatever.
the particular filesystem is used for chroots (/opt/chroots). It got full while
installing texlive-extra on a debian squeeze (i386) chroot.
It was probably a single process, but it involed a lot of small files.
Best regards
Arnd
On 05/14/2012 09:18 PM, Arnd Hannemann wrote:
> Hi,
>
> I just got the following warning on a compressed btrfs filesystem, while writing on it
> until no remaining space was available.
> Looks like a bit verbose "disk full" message, is it expected behavior?
>
Hi Arnd,
Can you add another mount option "enospc_debug", like mount xx xxx -o compress,enospc_debug?
Plz show us what you get, there might be a space leak.
thanks,
liubo
> [22403.015529] ------------[ cut here ]------------
> [22403.015572] WARNING: at /home/arnd/Projekte/kernel/linux-2.6/fs/btrfs/super.c:219 __btrfs_abort_transaction+0xae/0xc0 [btrfs]()
> [22403.015577] Hardware name: 4384GEG
> [22403.015579] btrfs: Transaction aborted
> [22403.015581] Modules linked in: dm_crypt ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables joydev bridge stp llc kvm_intel kvm bnep rfcomm bluetooth binfmt_misc arc4 snd_hda_codec_hdmi snd_hda_codec_conexant coretemp snd_hda_intel thinkpad_acpi microcode snd_hda_codec snd_hwdep snd_pcm qcserial usb_wwan psmouse usbserial snd_seq_midi serio_raw snd_rawmidi iwlwifi snd_seq_midi_event snd_seq intel_ips mac80211 snd_timer snd_seq_device cfg80211 snd snd_page_alloc mei(C) soundcore tpm_tis nvram btrfs zlib_deflate libcrc32c mxm_wmi ghash_clmulni_intel aesni_intel cryptd aes_x86_64 i915 drm_kms_helper sdhci_pci sdhci drm firewire_ohci i2c_algo_bit firewire_core crc_itu_t ahci libahci wmi video e1000e
> [22403.015668] Pid: 24802, comm: btrfs-delalloc- Tainted: G C 3.4.0-rc6aha+ #8
> [22403.015671] Call Trace:
> [22403.015683] [<ffffffff8104e35f>] warn_slowpath_common+0x7f/0xc0
> [22403.015689] [<ffffffff8104e456>] warn_slowpath_fmt+0x46/0x50
> [22403.015711] [<ffffffffa01c63fd>] ? btrfs_reserve_extent+0xed/0x250 [btrfs]
> [22403.015728] [<ffffffffa01b1bde>] __btrfs_abort_transaction+0xae/0xc0 [btrfs]
> [22403.015754] [<ffffffffa01dea12>] submit_compressed_extents+0x212/0x480 [btrfs]
> [22403.015781] [<ffffffffa01ded04>] async_cow_submit+0x84/0x90 [btrfs]
> [22403.015807] [<ffffffffa0206988>] run_ordered_completions+0x78/0xf0 [btrfs]
> [22403.015833] [<ffffffffa0207395>] worker_loop+0x185/0x5d0 [btrfs]
> [22403.015840] [<ffffffff810792c8>] ? __wake_up_common+0x58/0x90
> [22403.015867] [<ffffffffa0207210>] ? btrfs_queue_worker+0x310/0x310 [btrfs]
> [22403.015873] [<ffffffff81070b83>] kthread+0x93/0xa0
> [22403.015880] [<ffffffff81628224>] kernel_thread_helper+0x4/0x10
> [22403.015886] [<ffffffff81070af0>] ? kthread_freezable_should_stop+0x70/0x70
> [22403.015891] [<ffffffff81628220>] ? gs_change+0x13/0x13
> [22403.015895] ---[ end trace 768f569fb0306239 ]---
> [22403.015898] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.064892] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.094675] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.512902] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.703871] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.709637] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.721362] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.736999] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.794067] BTRFS warning (device dm-6): Aborting unused transaction.
> [22403.799009] BTRFS warning (device dm-6): Aborting unused transaction.
> [22404.035483] BTRFS warning (device dm-6): Aborting unused transaction.
> [22404.108751] BTRFS warning (device dm-6): Aborting unused transaction.
>
> Best regards
> Arnd
>
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