From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>,
"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Cc: "Holger Hoffstätte" <holger@applied-asynchrony.com>,
"Jannik Winkel" <j.winkel@profihost.ag>
Subject: Re: ENOSPC / no space on very large devices
Date: Fri, 29 Jul 2016 07:42:06 +0200 [thread overview]
Message-ID: <8283d3db-d83c-a047-a6a9-828049b44d59@profihost.ag> (raw)
In-Reply-To: <578F1AB0.6090000@cn.fujitsu.com>
here we go...
Am 20.07.2016 um 08:31 schrieb Wang Xiaoguang:
> hello,
>
> On 07/20/2016 01:31 PM, Stefan Priebe - Profihost AG wrote:
>> Hi list,
>>
>> while i didn't had the problem for some month i'm now getting ENOSPC on
>> a regular basis on one host.
>>
>> It would be great if someone can help me debugging this.
>>
>> Some basic informations:
>> # touch /vmbackup/abc
>> touch: cannot touch `/vmbackup/abc': No space left on device
> When touch operation failed, would you please change dir to
> /sys/fs/btrfs/UUID/allocation/data/ and show me these files' value.
> And also files in /sys/fs/btrfs/UUID/allocation/metadata. thanks.
> Here UUID is your real uuid :)
/sys/fs/btrfs/ebcb9a5e-d784-4e17-9cd0-bc67fe7b1ed6/allocation/data]#
grep -H '' *
bytes_may_use:0
bytes_pinned:0
bytes_reserved:0
bytes_used:6175380234240
disk_total:6641093181440
disk_used:6175380234240
flags:1
grep: single: Is a directory
total_bytes:6641093181440
total_bytes_pinned:726104035328
/sys/fs/btrfs/ebcb9a5e-d784-4e17-9cd0-bc67fe7b1ed6/allocation/metadata]# grep -H '' *
bytes_may_use:2089625649152
bytes_pinned:0
bytes_reserved:0
bytes_used:36823187456
disk_total:95563022336
disk_used:73646374912
grep: dup: Is a directory
flags:4
total_bytes:47781511168
total_bytes_pinned:-16792829952
Greets,
Stefan
>
> Regards,
> Xiaoguang Wang
>
>> # df -h /vmbackup/
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/mapper/stripe0-vmbackup 37T 28T 8,5T 77% /vmbackup
>>
>> # btrfs filesystem df /vmbackup/
>> Data, single: total=27.87TiB, used=27.39TiB
>> System, DUP: total=8.00MiB, used=4.34MiB
>> Metadata, DUP: total=286.50GiB, used=199.91GiB
>> GlobalReserve, single: total=512.00MiB, used=0.00B
>>
>> # btrfs filesystem show /vmbackup/
>> Label: none uuid: c8c3abf7-8280-4baa-bb51-a8c599e48002
>> Total devices 1 FS bytes used 27.59TiB
>> devid 1 size 36.38TiB used 28.43TiB path
>> /dev/mapper/stripe0-vmbackup
>>
>> # mount | grep vmbackup
>> /dev/mapper/stripe0-vmbackup on /vmbackup type btrfs
>> (rw,noatime,compress-force=zlib,nossd,noacl,space_cache=v2,clear_cache,commit=300,subvolid=5,subvol=/)
>>
>>
>> dmesg is empty.
>>
>> if i umount the volume i get traces (i already did a clear_cache 4 days
>> ago to recalculate the space_tree):
>>
>> [545031.675797] ------------[ cut here ]------------
>> [545031.725166] WARNING: CPU: 1 PID: 17711 at
>> fs/btrfs/extent-tree.c:5710 btrfs_free_block_groups+0x35a/0x400 [btrfs]()
>> [545031.778329] Modules linked in: netconsole ipt_REJECT nf_reject_ipv4
>> mpt3sas raid_class scsi_transport_sas xt_multiport iptable_filter
>> ip_tables x_tables 8021q garp bonding coretemp loop i40e(O) vxlan
>> ip6_udp_tunnel usbhid udp_tunnel sb_edac ehci_pci edac_core ehci_hcd
>> i2c_i801 i2c_core usbcore shpchp usb_common ipmi_si ipmi_msghandler
>> button btrfs dm_mod raid1 raid456 async_raid6_recov async_memcpy
>> async_pq async_xor async_tx xor raid6_pq md_mod ixgbe mdio sg sd_mod
>> ahci ptp libahci megaraid_sas pps_core
>> [545032.081037] CPU: 1 PID: 17711 Comm: umount Tainted: G O
>> 4.4.15+43-ph #1
>> [545032.145078] Hardware name: Supermicro X10DRH/X10DRH-iT, BIOS 1.0c
>> 02/18/2015
>> [545032.210238] 0000000000000000 ffff88010c40bcd8 ffffffffbd3c712f
>> 0000000000000000
>> [545032.275650] ffffffffc03ec603 ffff88010c40bd18 ffffffffbd0837e7
>> 00000047a0000000
>> [545032.341525] 0000000000000000 ffff88105e0ea400 ffff881054a76088
>> ffff881054a76000
>> [545032.408500] Call Trace:
>> [545032.475272] [<ffffffffbd3c712f>] dump_stack+0x63/0x84
>> [545032.543620] [<ffffffffbd0837e7>] warn_slowpath_common+0x97/0xe0
>> [545032.612900] [<ffffffffbd08384a>] warn_slowpath_null+0x1a/0x20
>> [545032.682026] [<ffffffffc034a17a>]
>> btrfs_free_block_groups+0x35a/0x400 [btrfs]
>> [545032.750297] [<ffffffffc035ba4b>] close_ctree+0x15b/0x330 [btrfs]
>> [545032.817085] [<ffffffffc03291f9>] btrfs_put_super+0x19/0x20 [btrfs]
>> [545032.883439] [<ffffffffbd1cd33f>] generic_shutdown_super+0x6f/0x100
>> [545032.949302] [<ffffffffbd1cd866>] kill_anon_super+0x16/0x30
>> [545033.014327] [<ffffffffc032f96a>] btrfs_kill_super+0x1a/0xb0 [btrfs]
>> [545033.079031] [<ffffffffbd1cda31>] deactivate_locked_super+0x51/0x90
>> [545033.143275] [<ffffffffbd1ce42e>] deactivate_super+0x4e/0x70
>> [545033.206535] [<ffffffffbd1e9373>] cleanup_mnt+0x43/0x90
>> [545033.268842] [<ffffffffbd1e9412>] __cleanup_mnt+0x12/0x20
>> [545033.331629] [<ffffffffbd09ef8e>] task_work_run+0x7e/0xa0
>> [545033.393350] [<ffffffffbd07e550>] exit_to_usermode_loop+0x66/0x95
>> [545033.454685] [<ffffffffbd002a56>] syscall_return_slowpath+0xa6/0xf0
>> [545033.515485] [<ffffffffbd6b6f4c>] int_ret_from_sys_call+0x25/0x8f
>> [545033.575890] ---[ end trace bd985b05cc90617c ]---
>> [545033.636708] ------------[ cut here ]------------
>> [545033.696339] WARNING: CPU: 1 PID: 17711 at
>> fs/btrfs/extent-tree.c:5711 btrfs_free_block_groups+0x3f4/0x400 [btrfs]()
>> [545033.758031] Modules linked in: netconsole ipt_REJECT nf_reject_ipv4
>> mpt3sas raid_class scsi_transport_sas xt_multiport iptable_filter
>> ip_tables x_tables 8021q garp bonding coretemp loop i40e(O) vxlan
>> ip6_udp_tunnel usbhid udp_tunnel sb_edac ehci_pci edac_core ehci_hcd
>> i2c_i801 i2c_core usbcore shpchp usb_common ipmi_si ipmi_msghandler
>> button btrfs dm_mod raid1 raid456 async_raid6_recov async_memcpy
>> async_pq async_xor async_tx xor raid6_pq md_mod ixgbe mdio sg sd_mod
>> ahci ptp libahci megaraid_sas pps_core
>> [545034.095188] CPU: 1 PID: 17711 Comm: umount Tainted: G W O
>> 4.4.15+43-ph #1
>> [545034.166070] Hardware name: Supermicro X10DRH/X10DRH-iT, BIOS 1.0c
>> 02/18/2015
>> [545034.236259] 0000000000000000 ffff88010c40bcd8 ffffffffbd3c712f
>> 0000000000000000
>> [545034.307690] ffffffffc03ec603 ffff88010c40bd18 ffffffffbd0837e7
>> 00000047a0000000
>> [545034.379596] 0000000000000000 ffff88105e0ea400 ffff881054a76088
>> ffff881054a76000
>> [545034.452542] Call Trace:
>> [545034.525286] [<ffffffffbd3c712f>] dump_stack+0x63/0x84
>> [545034.599643] [<ffffffffbd0837e7>] warn_slowpath_common+0x97/0xe0
>> [545034.674894] [<ffffffffbd08384a>] warn_slowpath_null+0x1a/0x20
>> [545034.750338] [<ffffffffc034a214>]
>> btrfs_free_block_groups+0x3f4/0x400 [btrfs]
>> [545034.826354] [<ffffffffc035ba4b>] close_ctree+0x15b/0x330 [btrfs]
>> [545034.900758] [<ffffffffc03291f9>] btrfs_put_super+0x19/0x20 [btrfs]
>> [545034.973612] [<ffffffffbd1cd33f>] generic_shutdown_super+0x6f/0x100
>> [545035.044589] [<ffffffffbd1cd866>] kill_anon_super+0x16/0x30
>> [545035.113505] [<ffffffffc032f96a>] btrfs_kill_super+0x1a/0xb0 [btrfs]
>> [545035.180769] [<ffffffffbd1cda31>] deactivate_locked_super+0x51/0x90
>> [545035.246451] [<ffffffffbd1ce42e>] deactivate_super+0x4e/0x70
>> [545035.311231] [<ffffffffbd1e9373>] cleanup_mnt+0x43/0x90
>> [545035.374958] [<ffffffffbd1e9412>] __cleanup_mnt+0x12/0x20
>> [545035.437806] [<ffffffffbd09ef8e>] task_work_run+0x7e/0xa0
>> [545035.500554] [<ffffffffbd07e550>] exit_to_usermode_loop+0x66/0x95
>> [545035.563108] [<ffffffffbd002a56>] syscall_return_slowpath+0xa6/0xf0
>> [545035.625033] [<ffffffffbd6b6f4c>] int_ret_from_sys_call+0x25/0x8f
>> [545035.686864] ---[ end trace bd985b05cc90617d ]---
>> [545035.748727] ------------[ cut here ]------------
>> [545035.810850] WARNING: CPU: 1 PID: 17711 at
>> fs/btrfs/extent-tree.c:9990 btrfs_free_block_groups+0x2a4/0x400 [btrfs]()
>> [545035.875894] Modules linked in: netconsole ipt_REJECT nf_reject_ipv4
>> mpt3sas raid_class scsi_transport_sas xt_multiport iptable_filter
>> ip_tables x_tables 8021q garp bonding coretemp loop i40e(O) vxlan
>> ip6_udp_tunnel usbhid udp_tunnel sb_edac ehci_pci edac_core ehci_hcd
>> i2c_i801 i2c_core usbcore shpchp usb_common ipmi_si ipmi_msghandler
>> button btrfs dm_mod raid1 raid456 async_raid6_recov async_memcpy
>> async_pq async_xor async_tx xor raid6_pq md_mod ixgbe mdio sg sd_mod
>> ahci ptp libahci megaraid_sas pps_core
>> [545036.227082] CPU: 1 PID: 17711 Comm: umount Tainted: G W O
>> 4.4.15+43-ph #1
>> [545036.300440] Hardware name: Supermicro X10DRH/X10DRH-iT, BIOS 1.0c
>> 02/18/2015
>> [545036.374617] 0000000000000000 ffff88010c40bcd8 ffffffffbd3c712f
>> 0000000000000000
>> [545036.449929] ffffffffc03ec603 ffff88010c40bd18 ffffffffbd0837e7
>> ffff88105e112c30
>> [545036.525514] 0000000000000038 0000000000000000 ffff88105e0ea888
>> ffff881054a76000
>> [545036.601698] Call Trace:
>> [545036.677124] [<ffffffffbd3c712f>] dump_stack+0x63/0x84
>> [545036.753379] [<ffffffffbd0837e7>] warn_slowpath_common+0x97/0xe0
>> [545036.829845] [<ffffffffbd08384a>] warn_slowpath_null+0x1a/0x20
>> [545036.905507] [<ffffffffc034a0c4>]
>> btrfs_free_block_groups+0x2a4/0x400 [btrfs]
>> [545036.981923] [<ffffffffc035ba4b>] close_ctree+0x15b/0x330 [btrfs]
>> [545037.056759] [<ffffffffc03291f9>] btrfs_put_super+0x19/0x20 [btrfs]
>> [545037.130024] [<ffffffffbd1cd33f>] generic_shutdown_super+0x6f/0x100
>> [545037.201434] [<ffffffffbd1cd866>] kill_anon_super+0x16/0x30
>> [545037.270737] [<ffffffffc032f96a>] btrfs_kill_super+0x1a/0xb0 [btrfs]
>> [545037.338382] [<ffffffffbd1cda31>] deactivate_locked_super+0x51/0x90
>> [545037.404449] [<ffffffffbd1ce42e>] deactivate_super+0x4e/0x70
>> [545037.469597] [<ffffffffbd1e9373>] cleanup_mnt+0x43/0x90
>> [545037.533686] [<ffffffffbd1e9412>] __cleanup_mnt+0x12/0x20
>> [545037.596915] [<ffffffffbd09ef8e>] task_work_run+0x7e/0xa0
>> [545037.660027] [<ffffffffbd07e550>] exit_to_usermode_loop+0x66/0x95
>> [545037.722960] [<ffffffffbd002a56>] syscall_return_slowpath+0xa6/0xf0
>> [545037.785270] [<ffffffffbd6b6f4c>] int_ret_from_sys_call+0x25/0x8f
>> [545037.847443] ---[ end trace bd985b05cc90617e ]---
>> [545037.909700] BTRFS: space_info 4 has 18446743523026157568 free, is
>> not full
>> [545037.973447] BTRFS: space_info total=307627032576, used=214654500864,
>> pinned=0, reserved=0, may_use=643655794688, readonly=131072
>>
>> The workload on the FS is basically:
>> - Write file1 (50GB - 500GB)
>>
>> - cp --reflink=always file1 to file2
>> - apply changes to file2 (100MB - 5GB)
>>
>> - cp --reflink=always file2 to file3
>> - apply changes to file3 (100MB - 5GB)
>>
>> ...
>>
>> - delete file1
>>
>> - cp --reflink=always file3 to file4
>> - apply changes to file4 (100MB - 5GB)
>>
>> - delete file2
>>
>> ...
>>
>> And this for around 300 files a day. btrfs balance with dusage=5 and
>> musage=5 is running daily.
>>
>> The kernel is something special - i'm using this one from holger:
>> https://github.com/hhoffstaette/kernel-patches
>>
>> which is basically a 4.4.15 + several patches especially a lot of btrfs
>> patches up to 4.8 i think.
>>
>> Greets,
>> Stefan
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
>>
>
>
>
next prev parent reply other threads:[~2016-07-29 5:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 5:31 ENOSPC / no space on very large devices Stefan Priebe - Profihost AG
2016-07-20 6:31 ` Wang Xiaoguang
2016-07-29 5:42 ` Stefan Priebe - Profihost AG [this message]
2016-07-20 7:35 ` Holger Hoffstätte
2016-07-29 5:44 ` Stefan Priebe - Profihost AG
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