From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f176.google.com ([209.85.220.176]:36721 "EHLO mail-qk0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752249AbcIHSZD (ORCPT ); Thu, 8 Sep 2016 14:25:03 -0400 Received: by mail-qk0-f176.google.com with SMTP id z190so42198074qkc.3 for ; Thu, 08 Sep 2016 11:25:02 -0700 (PDT) Message-ID: <1473359094.7190.1.camel@gmail.com> Subject: Re: BTRFS constantly reports "No space left on device" even with a huge unallocated space From: Ronan Arraes Jardim Chagas To: Qu Wenruo , Jeff Mahoney , Chris Murphy , "Austin S. Hemmelgarn" Cc: Wang Xiaoguang , Btrfs BTRFS Date: Thu, 08 Sep 2016 15:24:54 -0300 In-Reply-To: <356a9e31-047e-d4c9-00ba-d01b6e92b266@cn.fujitsu.com> References: <1471023419.16857.9.camel@gmail.com> <52290114-3b37-2de5-9c9f-ceda6dff955b@suse.com>

<1472734635.3137.4.camel@gmail.com> <0778dff0-cb43-d279-adb2-0e314b61110d@gmail.com> <1472747695.3137.7.camel@gmail.com>

<1472827395.3713.6.camel@gmail.com> <9dee919a-0e81-5ba7-ddc6-7dcdb3a6b873@suse.com> <1472829630.3713.8.camel@gmail.com> <506f2875-8cea-2d99-3664-52ee546adcfd@suse.com> <1472844353.3083.1.camel@gmail.com> <356a9e31-047e-d4c9-00ba-d01b6e92b266@cn.fujitsu.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi all! Em Seg, 2016-09-05 às 16:49 +0800, Qu Wenruo escreveu: > Just like what Wang has mentioned, would you please paste all the > output > of the contents of /sys/fs/btrfs//allocation? > > It's recommended to use "grep . -IR " to get all the data as > it > will show the file name. So, one more time, I see the problem. This time I was just using Firefox and I cannot recover using `btrfs balance`. I think that, one more time, I will need to reboot this machine. This problem is really causing me a lot of troubles :( I have disabled the quotas and the first error message after the problem was: [ 2444.592255] ------------[ cut here ]------------ [ 2444.592314] WARNING: CPU: 4 PID: 289 at ../fs/btrfs/extent- tree.c:4303 btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] [ 2444.592317] Modules linked in: fuse nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw nvidia_drm(PO) ipt_REJECT nf_reject_ipv4 snd_hda_codec_hdmi nvidia_modeset(PO) intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp nvidia(PO) coretemp snd_hda_codec_realtek iTCO_wdt snd_hda_codec_generic iptable_raw drm_kms_helper snd_hda_intel drm xt_CT snd_hda_codec snd_hda_core snd_hwdep kvm_intel snd_pcm snd_timer joydev mei_wdt fb_sys_fops iTCO_vendor_support i2c_i801 lpc_ich kvm syscopyarea snd sysfillrect irqbypass mei_me hp_wmi sysimgblt iptable_filter crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper [ 2444.592386] cryptd soundcore mei sparse_keymap rfkill e1000e shpchp pcspkr ioatdma mfd_core tpm_infineon tpm_tis dca tpm fjes ptp pps_core ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables btrfs xor raid6_pq hid_generic usbhid crc32c_intel serio_raw xhci_pci ehci_pci xhci_hcd ehci_hcd firewire_ohci sr_mod firewire_core cdrom crc_itu_t usbcore isci usb_common libsas ata_generic mpt3sas raid_class scsi_transport_sas wmi button sg [ 2444.592447] CPU: 4 PID: 289 Comm: kworker/u65:7 Tainted: P W O 4.7.1-1-default #1 [ 2444.592450] Hardware name: Hewlett-Packard HP Z820 Workstation/158B, BIOS J63 v03.65 12/19/2013 [ 2444.592458] Workqueue: writeback wb_workfn (flush-btrfs-1) [ 2444.592462] 0000000000000000 ffffffff81393104 0000000000000000 0000000000000000 [ 2444.592468] ffffffff8107ca1e ffff88080de6d800 0000000000009000 ffff88080c437a00 [ 2444.592472] ffff880634b379ac 0000000000009000 ffff88080dcfb73c ffffffffa02af98e [ 2444.592477] Call Trace: [ 2444.592499] [] dump_trace+0x5e/0x320 [ 2444.592507] [] show_stack_log_lvl+0x10c/0x180 [ 2444.592514] [] show_stack+0x21/0x40 [ 2444.592523] [] dump_stack+0x5c/0x78 [ 2444.592531] [] __warn+0xbe/0xe0 [ 2444.592561] [] btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] [ 2444.592602] [] btrfs_clear_bit_hook+0x296/0x380 [btrfs] [ 2444.592642] [] clear_state_bit+0x55/0x1d0 [btrfs] [ 2444.592676] [] __clear_extent_bit+0x13d/0x3f0 [btrfs] [ 2444.592707] [] extent_clear_unlock_delalloc+0x62/0x280 [btrfs] [ 2444.592739] [] cow_file_range+0x299/0x440 [btrfs] [ 2444.592768] [] run_delalloc_range+0x392/0x3b0 [btrfs] [ 2444.592801] [] writepage_delalloc.isra.40+0x100/0x170 [btrfs] [ 2444.592834] [] __extent_writepage+0xc3/0x340 [btrfs] [ 2444.592864] [] extent_write_cache_pages.isra.36.constprop.53+0x23b/0x350 [btrfs] [ 2444.592894] [] extent_writepages+0x4e/0x60 [btrfs] [ 2444.592900] [] __writeback_single_inode+0x3d/0x3b0 [ 2444.592907] [] writeback_sb_inodes+0x20a/0x440 [ 2444.592914] [] __writeback_inodes_wb+0x87/0xb0 [ 2444.592921] [] wb_writeback+0x28d/0x330 [ 2444.592927] [] wb_workfn+0x222/0x3f0 [ 2444.592934] [] process_one_work+0x1ed/0x4e0 [ 2444.592942] [] worker_thread+0x47/0x4c0 [ 2444.592947] [] kthread+0xbd/0xe0 [ 2444.592954] [] ret_from_fork+0x1f/0x40 [ 2444.596679] DWARF2 unwinder stuck at ret_from_fork+0x1f/0x40 [ 2444.596683] Leftover inexact backtrace: [ 2444.596689] [] ? kthread_worker_fn+0x170/0x170 I will also provide the information requested by Qu: grep . -IR /sys/fs/btrfs/e9efaa0c-d477-4249-830f- ee5956768b29/allocation allocation/data/flags:1 allocation/data/bytes_pinned:0 allocation/data/bytes_may_use:0 allocation/data/total_bytes_pinned:202973265920 allocation/data/bytes_reserved:0 allocation/data/bytes_used:45623730176 allocation/data/single/used_bytes:45623730176 allocation/data/single/total_bytes:46179287040 allocation/data/total_bytes:46179287040 allocation/data/disk_total:46179287040 allocation/data/disk_used:45623730176 allocation/metadata/dup/used_bytes:1120698368 allocation/metadata/dup/total_bytes:6979321856 allocation/metadata/flags:4 allocation/metadata/bytes_pinned:0 allocation/metadata/bytes_may_use:88521768960 allocation/metadata/total_bytes_pinned:-44285952 allocation/metadata/bytes_reserved:0 allocation/metadata/bytes_used:1120698368 allocation/metadata/total_bytes:6979321856 allocation/metadata/disk_total:13958643712 allocation/metadata/disk_used:2241396736 allocation/global_rsv_size:385875968 allocation/global_rsv_reserved:385875968 allocation/system/dup/used_bytes:16384 allocation/system/dup/total_bytes:33554432 allocation/system/flags:2 allocation/system/bytes_pinned:0 allocation/system/bytes_may_use:0 allocation/system/total_bytes_pinned:0 allocation/system/bytes_reserved:0 allocation/system/bytes_used:16384 allocation/system/total_bytes:33554432 allocation/system/disk_total:67108864 allocation/system/disk_used:32768 Additional information: btrfs fi usage / Overall: Device size: 1.26TiB Device allocated: 56.07GiB Device unallocated: 1.20TiB Device missing: 0.00B Used: 44.58GiB Free (estimated): 1.20TiB (min: 616.41GiB) Data ratio: 1.00 Metadata ratio: 2.00 Global reserve: 368.00MiB (used: 0.00B) Data,single: Size:43.01GiB, Used:42.49GiB /dev/sda6 43.01GiB Metadata,DUP: Size:6.50GiB, Used:1.04GiB /dev/sda6 13.00GiB System,DUP: Size:32.00MiB, Used:16.00KiB /dev/sda6 64.00MiB Unallocated: /dev/sda6 1.20TiB Can anyone help me? Best regards, Ronan Arraes