Am 20.07.2016 um 09:35 schrieb Holger Hoffstätte: > On 07/20/16 07:31, 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. > > Well, it's getting better. :)
Again the same problem. > >> 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]() > > This is "only" a warning, but as we can see below it indicates a real > problem. The warning was added only recently to for-next by the patch called > "Btrfs: warn_on for unaccounted spaces" [1], but I've had it in my tree > forever. Never seen the warning myself. > > (snip) >> [545037.909700] BTRFS: space_info 4 has 18446743523026157568 free, is >> not full > > Wow, ~18.4 exabytes really is a lot of free space. :) > So it looks like something underflowed the space_info and now things are > confused for about ~550 GB. Unfortunately I have no good idea how to fix > that. :( umount triggered this one: [983102.838217] ------------[ cut here ]------------ [983102.864383] WARNING: CPU: 1 PID: 483 at fs/btrfs/extent-tree.c:5710 btrfs_free_block_groups+0x35a/0x400 [btrfs]() [983102.894424] Modules linked in: netconsole xt_multiport iptable_filter ip_tables x_tables 8021q garp bonding usbhid coretemp loop xhci_pci ehci_pci xhci_hcd ehci_hcd i40e(O) sb_edac vxlan ip6_udp_tunnel usbcore ipmi_si i2c_i801 shpchp usb_common udp_tunnel edac_core ipmi_msghandler button btrfs dm_mod raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 md_mod igb i2c_algo_bit i2c_core sg sd_mod ptp ahci libahci pps_core aacraid [983103.043010] CPU: 1 PID: 483 Comm: umount Tainted: G O 4.4.15+43-ph #1 [983103.084441] Hardware name: Supermicro Super Server/X10SRi-F, BIOS 2.0 12/17/2015 [983103.127289] 0000000000000000 ffff880074673cd8 ffffffffad3c712f 0000000000000000 [983103.171816] ffffffffc0298603 ffff880074673d18 ffffffffad0837e7 0000000b20000000 [983103.216766] 0000000000000000 ffff88103bd7e600 ffff881037c92088 ffff881037c92000 [983103.262776] Call Trace: [983103.308602] [<ffffffffad3c712f>] dump_stack+0x63/0x84 [983103.355609] [<ffffffffad0837e7>] warn_slowpath_common+0x97/0xe0 [983103.403528] [<ffffffffad08384a>] warn_slowpath_null+0x1a/0x20 [983103.451297] [<ffffffffc01f617a>] btrfs_free_block_groups+0x35a/0x400 [btrfs] [983103.500439] [<ffffffffc0207a4b>] close_ctree+0x15b/0x330 [btrfs] [983103.548805] [<ffffffffc01d51f9>] btrfs_put_super+0x19/0x20 [btrfs] [983103.597122] [<ffffffffad1cd33f>] generic_shutdown_super+0x6f/0x100 [983103.645398] [<ffffffffad1cd866>] kill_anon_super+0x16/0x30 [983103.693384] [<ffffffffc01db96a>] btrfs_kill_super+0x1a/0xb0 [btrfs] [983103.742430] [<ffffffffad1cda31>] deactivate_locked_super+0x51/0x90 [983103.791501] [<ffffffffad1ce42e>] deactivate_super+0x4e/0x70 [983103.839979] [<ffffffffad1e9373>] cleanup_mnt+0x43/0x90 [983103.889050] [<ffffffffad1e9412>] __cleanup_mnt+0x12/0x20 [983103.937756] [<ffffffffad09ef8e>] task_work_run+0x7e/0xa0 [983103.986032] [<ffffffffad07e550>] exit_to_usermode_loop+0x66/0x95 [983104.035214] [<ffffffffad002a56>] syscall_return_slowpath+0xa6/0xf0 [983104.084312] [<ffffffffad6b6f4c>] int_ret_from_sys_call+0x25/0x8f [983104.134098] ---[ end trace ca97a745adcb888f ]--- [983104.184540] ------------[ cut here ]------------ [983104.235514] WARNING: CPU: 1 PID: 483 at fs/btrfs/extent-tree.c:5711 btrfs_free_block_groups+0x3f4/0x400 [btrfs]() [983104.290282] Modules linked in: netconsole xt_multiport iptable_filter ip_tables x_tables 8021q garp bonding usbhid coretemp loop xhci_pci ehci_pci xhci_hcd ehci_hcd i40e(O) sb_edac vxlan ip6_udp_tunnel usbcore ipmi_si i2c_i801 shpchp usb_common udp_tunnel edac_core ipmi_msghandler button btrfs dm_mod raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 md_mod igb i2c_algo_bit i2c_core sg sd_mod ptp ahci libahci pps_core aacraid [983104.536076] CPU: 1 PID: 483 Comm: umount Tainted: G W O 4.4.15+43-ph #1 [983104.601962] Hardware name: Supermicro Super Server/X10SRi-F, BIOS 2.0 12/17/2015 [983104.669312] 0000000000000000 ffff880074673cd8 ffffffffad3c712f 0000000000000000 [983104.738337] ffffffffc0298603 ffff880074673d18 ffffffffad0837e7 0000000b20000000 [983104.807874] 0000000000000000 ffff88103bd7e600 ffff881037c92088 ffff881037c92000 [983104.878415] Call Trace: [983104.948803] [<ffffffffad3c712f>] dump_stack+0x63/0x84 [983105.020781] [<ffffffffad0837e7>] warn_slowpath_common+0x97/0xe0 [983105.093734] [<ffffffffad08384a>] warn_slowpath_null+0x1a/0x20 [983105.166888] [<ffffffffc01f6214>] btrfs_free_block_groups+0x3f4/0x400 [btrfs] [983105.241461] [<ffffffffc0207a4b>] close_ctree+0x15b/0x330 [btrfs] [983105.316744] [<ffffffffc01d51f9>] btrfs_put_super+0x19/0x20 [btrfs] [983105.392021] [<ffffffffad1cd33f>] generic_shutdown_super+0x6f/0x100 [983105.465852] [<ffffffffad1cd866>] kill_anon_super+0x16/0x30 [983105.537829] [<ffffffffc01db96a>] btrfs_kill_super+0x1a/0xb0 [btrfs] [983105.608078] [<ffffffffad1cda31>] deactivate_locked_super+0x51/0x90 [983105.676494] [<ffffffffad1ce42e>] deactivate_super+0x4e/0x70 [983105.742614] [<ffffffffad1e9373>] cleanup_mnt+0x43/0x90 [983105.807432] [<ffffffffad1e9412>] __cleanup_mnt+0x12/0x20 [983105.871301] [<ffffffffad09ef8e>] task_work_run+0x7e/0xa0 [983105.934048] [<ffffffffad07e550>] exit_to_usermode_loop+0x66/0x95 [983105.997218] [<ffffffffad002a56>] syscall_return_slowpath+0xa6/0xf0 [983106.060109] [<ffffffffad6b6f4c>] int_ret_from_sys_call+0x25/0x8f [983106.122424] ---[ end trace ca97a745adcb8890 ]--- [983106.184587] ------------[ cut here ]------------ [983106.246721] WARNING: CPU: 1 PID: 483 at fs/btrfs/extent-tree.c:9990 btrfs_free_block_groups+0x2a4/0x400 [btrfs]() [983106.312374] Modules linked in: netconsole xt_multiport iptable_filter ip_tables x_tables 8021q garp bonding usbhid coretemp loop xhci_pci ehci_pci xhci_hcd ehci_hcd i40e(O) sb_edac vxlan ip6_udp_tunnel usbcore ipmi_si i2c_i801 shpchp usb_common udp_tunnel edac_core ipmi_msghandler button btrfs dm_mod raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 md_mod igb i2c_algo_bit i2c_core sg sd_mod ptp ahci libahci pps_core aacraid [983106.594248] CPU: 1 PID: 483 Comm: umount Tainted: G W O 4.4.15+43-ph #1 [983106.667057] Hardware name: Supermicro Super Server/X10SRi-F, BIOS 2.0 12/17/2015 [983106.740535] 0000000000000000 ffff880074673cd8 ffffffffad3c712f 0000000000000000 [983106.814853] ffffffffc0298603 ffff880074673d18 ffffffffad0837e7 ffff88107febe4b0 [983106.889447] 0000000000000038 0000000000000000 ffff88103bd7d688 ffff881037c92000 [983106.964466] Call Trace: [983107.038878] [<ffffffffad3c712f>] dump_stack+0x63/0x84 [983107.114585] [<ffffffffad0837e7>] warn_slowpath_common+0x97/0xe0 [983107.190641] [<ffffffffad08384a>] warn_slowpath_null+0x1a/0x20 [983107.266153] [<ffffffffc01f60c4>] btrfs_free_block_groups+0x2a4/0x400 [btrfs] [983107.342312] [<ffffffffc0207a4b>] close_ctree+0x15b/0x330 [btrfs] [983107.418075] [<ffffffffc01d51f9>] btrfs_put_super+0x19/0x20 [btrfs] [983107.494135] [<ffffffffad1cd33f>] generic_shutdown_super+0x6f/0x100 [983107.568733] [<ffffffffad1cd866>] kill_anon_super+0x16/0x30 [983107.641401] [<ffffffffc01db96a>] btrfs_kill_super+0x1a/0xb0 [btrfs] [983107.712357] [<ffffffffad1cda31>] deactivate_locked_super+0x51/0x90 [983107.781493] [<ffffffffad1ce42e>] deactivate_super+0x4e/0x70 [983107.848333] [<ffffffffad1e9373>] cleanup_mnt+0x43/0x90 [983107.913862] [<ffffffffad1e9412>] __cleanup_mnt+0x12/0x20 [983107.978423] [<ffffffffad09ef8e>] task_work_run+0x7e/0xa0 [983108.041898] [<ffffffffad07e550>] exit_to_usermode_loop+0x66/0x95 [983108.105838] [<ffffffffad002a56>] syscall_return_slowpath+0xa6/0xf0 [983108.169494] [<ffffffffad6b6f4c>] int_ret_from_sys_call+0x25/0x8f [983108.232423] ---[ end trace ca97a745adcb8891 ]--- [983108.295201] BTRFS: space_info 4 has 18446741995579113472 free, is not full [983108.359167] BTRFS: space_info total=47781511168, used=36823171072, pinned=0, reserved=0, may_use=2089088778240, readonly=0 > >> 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. > > More like for-next with all the pagesize/sectorsize stuff carefully > avoided. I'm really looking forward to 4.8, this is becoming unwieldy.. > > -h > > [1] > https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git/commit/?h=for-next&id=d555b6c380c644af63dbdaa7cc14bba041a4e4dd > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
