>> I can get btrfs to throw a kernel bug easily by running btrfs fi defrag >> on some files in 3.9.0: > > Thanks for reporting. It's a known bug (that ought to be fixed before > the 3.9 release in fact).
I'm still getting a BUG in __tree_mod_log_rewind on kernels 3.9.2 and 3.10-rc2 when trying to defragment my Steam folder: [420853.901366] ------------[ cut here ]------------ [420853.901371] Kernel BUG at ffffffffa0136503 [verbose debug info unavailable] [420853.901374] invalid opcode: 0000 [#1] SMP [420853.901376] Modules linked in: nls_iso8859_1 pci_stub snd_hrtimer parport_pc ppdev bnep rfcomm bluetooth binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec kvm_intel snd_hwdep snd_pcm snd_seq_midi kvm snd_rawmidi snd_seq_midi_event snd_seq dm_multipath snd_timer snd_seq_device scsi_dh microcode snd serio_raw soundcore gpio_ich nvidia(POF) snd_page_alloc lpc_ich mac_hid asus_atk0110 hwmon_vid coretemp lp parport btrfs zlib_deflate libcrc32c raid10 raid456 async_memcpy async_raid6_recov async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic hid_a4tech usbhid hid dm_mirror dm_region_hash dm_log usb_storage firewire_ohci firewire_core crc_itu_t 8139too 8139cp atl1 [last unloaded: vboxdrv] [420853.901417] CPU 0 [420853.901421] Pid: 17770, comm: btrfs-endio-wri Tainted: PF O 3.9.2-030902-generic #201305111035 System manufacturer P5KC/P5KC [420853.901423] RIP: 0010:[<ffffffffa0136503>] [<ffffffffa0136503>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [420853.901442] RSP: 0018:ffff880116eab838 EFLAGS: 00010293 [420853.901444] RAX: 0000000000000000 RBX: ffff88007631a930 RCX: ffff880116eab7d8 [420853.901446] RDX: 0000000028c78f56 RSI: 0000000000000819 RDI: ffff88004f9bcd00 [420853.901447] RBP: ffff880116eab868 R08: 0000000000001000 R09: ffff880116eab7e8 [420853.901449] R10: 000000000002f96f R11: 0000000000000000 R12: ffff880124a67b80 [420853.901451] R13: 000000000000003c R14: ffff8801015bc500 R15: 00000000000014f7 [420853.901453] FS: 0000000000000000(0000) GS:ffff88012fc00000(0000) knlGS:0000000000000000 [420853.901455] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [420853.901456] CR2: 00007fe6f0b19928 CR3: 00000000c6106000 CR4: 00000000000007f0 [420853.901458] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [420853.901460] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [420853.901462] Process btrfs-endio-wri (pid: 17770, threadinfo ffff880116eaa000, task ffff880115f05d40) [420853.901463] Stack: [420853.901464] ffff880116eab858 ffff88001c1f0a80 00000000000014f7 ffff880000000000 [420853.901468] 00000001264d3000 ffff880123b44000 ffff880116eab8b8 ffffffffa01365ef [420853.901471] ffff880124a67b80 ffff88007631a930 ffff88005ce97800 0000000000000001 [420853.901474] Call Trace: [420853.901484] [<ffffffffa01365ef>] tree_mod_log_rewind+0xdf/0x240 [btrfs] [420853.901493] [<ffffffffa013e5cb>] btrfs_search_old_slot+0x4cb/0x670 [btrfs] [420853.901507] [<ffffffffa01b9238>] __resolve_indirect_ref+0xc8/0x150 [btrfs] [420853.901519] [<ffffffffa0157f7f>] ? btree_read_extent_buffer_pages.constprop.121+0xcf/0x120 [btrfs] [420853.901532] [<ffffffffa01b935e>] __resolve_indirect_refs+0x9e/0x200 [btrfs] [420853.901544] [<ffffffffa01b8e79>] ? __add_missing_keys.isra.13+0x89/0x120 [btrfs] [420853.901557] [<ffffffffa01b9b5d>] find_parent_nodes+0x45d/0x6b0 [btrfs] [420853.901570] [<ffffffffa01b9e49>] btrfs_find_all_roots+0x99/0x100 [btrfs] [420853.901575] [<ffffffff81187854>] ? kfree+0x134/0x170 [420853.901587] [<ffffffffa0165620>] ? btrfs_submit_direct+0x190/0x190 [btrfs] [420853.901599] [<ffffffffa0165620>] ? btrfs_submit_direct+0x190/0x190 [btrfs] [420853.901612] [<ffffffffa01baa97>] iterate_extent_inodes+0x177/0x2c0 [btrfs] [420853.901625] [<ffffffffa01bac72>] iterate_inodes_from_logical+0x92/0xb0 [btrfs] [420853.901637] [<ffffffffa0165620>] ? btrfs_submit_direct+0x190/0x190 [btrfs] [420853.901648] [<ffffffffa0161a68>] record_extent_backrefs+0x78/0xf0 [btrfs] [420853.901661] [<ffffffffa016cb24>] relink_file_extents+0x44/0x180 [btrfs] [420853.901673] [<ffffffffa016cd95>] btrfs_finish_ordered_io+0x135/0x4d0 [btrfs] [420853.901685] [<ffffffffa016d145>] finish_ordered_fn+0x15/0x20 [btrfs] [420853.901698] [<ffffffffa018cc80>] worker_loop+0xa0/0x320 [btrfs] [420853.901710] [<ffffffffa018cbe0>] ? check_pending_worker_creates.isra.1+0xf0/0xf0 [btrfs] [420853.901714] [<ffffffff810804a0>] kthread+0xc0/0xd0 [420853.901717] [<ffffffff810803e0>] ? flush_kthread_worker+0xb0/0xb0 [420853.901722] [<ffffffff817126ec>] ret_from_fork+0x7c/0xb0 [420853.901724] [<ffffffff810803e0>] ? flush_kthread_worker+0xb0/0xb0 [420853.901726] Code: c1 49 63 46 58 48 89 c2 48 c1 e2 05 48 8d 54 10 65 49 63 46 2c 48 89 c6 48 c1 e6 05 48 8d 74 30 65 e8 62 a7 04 00 e9 a5 fe ff ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 [420853.901754] RIP [<ffffffffa0136503>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [420853.901763] RSP <ffff880116eab838> [420853.901766] ---[ end trace 594047585a976e99 ]--- and 3.10-rc2: [ 485.921762] ------------[ cut here ]------------ [ 485.921767] Kernel BUG at ffffffffa0124ea3 [verbose debug info unavailable] [ 485.921769] invalid opcode: 0000 [#1] SMP [ 485.921772] Modules linked in: snd_hrtimer dm_crypt snd_hda_codec_hdmi dm_multipath snd_hda_codec_realtek snd_hda_intel scsi_dh snd_hda_codec snd_hwdep nvidia(POF) kvm_intel parport_pc gpio_ich snd_pcm ppdev serio_raw kvm snd_page_alloc snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer asus_atk0110 snd drm mac_hid microcode soundcore rfcomm bnep bluetooth hwmon_vid coretemp lp parport binfmt_misc btrfs zlib_deflate libcrc32c raid10 raid456 async_memcpy async_raid6_recov async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic hid_a4tech usbhid hid dm_mirror dm_region_hash dm_log firewire_ohci firewire_core crc_itu_t 8139too 8139cp atl1 [ 485.921809] CPU: 0 PID: 1568 Comm: btrfs-endio-wri Tainted: PF O 3.10.0-031000rc2-generic #201305201835 [ 485.921811] Hardware name: System manufacturer P5KC/P5KC, BIOS 1203 06/25/2008 [ 485.921812] task: ffff880125515dc0 ti: ffff880127232000 task.ti: ffff880127232000 [ 485.921814] RIP: 0010:[<ffffffffa0124ea3>] [<ffffffffa0124ea3>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [ 485.921833] RSP: 0018:ffff880127233848 EFLAGS: 00010297 [ 485.921834] RAX: 0000000000000000 RBX: ffff88007e832dc0 RCX: ffff8801272337e8 [ 485.921836] RDX: 0000000028c3f233 RSI: 0000000000000e6a RDI: ffff8801259a9f00 [ 485.921838] RBP: ffff880127233878 R08: 0000000000001000 R09: ffff8801272337f8 [ 485.921839] R10: 000000000002adad R11: 0000000000000000 R12: ffff8801273c5680 [ 485.921841] R13: 000000000000006d R14: ffff8800c97fa800 R15: 0000006c00000000 [ 485.921843] FS: 0000000000000000(0000) GS:ffff88012fc00000(0000) knlGS:0000000000000000 [ 485.921844] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 485.921846] CR2: 00007f42852d0000 CR3: 0000000035193000 CR4: 00000000000007f0 [ 485.921847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 485.921849] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 485.921850] Stack: [ 485.921851] ffff880127233868 ffff88007d0228c0 0000006c00000000 ffff880000000000 [ 485.921854] 0000000049f37000 ffff880123ae4000 ffff8801272338c8 ffffffffa0124fab [ 485.921857] ffff8801273c5680 ffff88007e832dc0 ffff8801293a5a20 0000000000000001 [ 485.921860] Call Trace: [ 485.921869] [<ffffffffa0124fab>] tree_mod_log_rewind+0xfb/0x260 [btrfs] [ 485.921878] [<ffffffffa012d1a8>] btrfs_search_old_slot+0x538/0x6c0 [btrfs] [ 485.921892] [<ffffffffa01a6848>] __resolve_indirect_ref+0xc8/0x150 [btrfs] [ 485.921904] [<ffffffffa01a6966>] __resolve_indirect_refs+0x96/0x1f0 [btrfs] [ 485.921917] [<ffffffffa016d395>] ? free_extent_buffer+0x35/0x40 [btrfs] [ 485.921930] [<ffffffffa01a717b>] find_parent_nodes+0x47b/0x6d0 [btrfs] [ 485.921942] [<ffffffffa01a7469>] btrfs_find_all_roots+0x99/0x100 [btrfs] [ 485.921954] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 485.921966] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 485.921979] [<ffffffffa01a7ff5>] iterate_extent_inodes+0x135/0x250 [btrfs] [ 485.921991] [<ffffffffa01a81a2>] iterate_inodes_from_logical+0x92/0xb0 [btrfs] [ 485.922003] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 485.922014] [<ffffffffa0150148>] record_extent_backrefs+0x78/0xf0 [btrfs] [ 485.922026] [<ffffffffa015b1e4>] relink_file_extents+0x44/0x180 [btrfs] [ 485.922038] [<ffffffffa015b455>] btrfs_finish_ordered_io+0x135/0x4d0 [btrfs] [ 485.922049] [<ffffffffa015b805>] finish_ordered_fn+0x15/0x20 [btrfs] [ 485.922061] [<ffffffffa017aba0>] worker_loop+0xa0/0x2f0 [btrfs] [ 485.922074] [<ffffffffa017ab00>] ? check_pending_worker_creates.isra.1+0xe0/0xe0 [btrfs] [ 485.922079] [<ffffffff8106b890>] kthread+0xc0/0xd0 [ 485.922081] [<ffffffff8106b7d0>] ? flush_kthread_worker+0xb0/0xb0 [ 485.922085] [<ffffffff816d59dc>] ret_from_fork+0x7c/0xb0 [ 485.922088] [<ffffffff8106b7d0>] ? flush_kthread_worker+0xb0/0xb0 [ 485.922089] Code: c1 49 63 46 58 48 89 c2 48 c1 e2 05 48 8d 54 10 65 49 63 46 2c 48 89 c6 48 c1 e6 05 48 8d 74 30 65 e8 62 9e 04 00 e9 a5 fe ff ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 [ 485.922114] RIP [<ffffffffa0124ea3>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [ 485.922123] RSP <ffff880127233848> [ 485.922125] ---[ end trace c99a0e9f2e380154 ]--- [ 491.584786] ------------[ cut here ]------------ [ 491.584791] Kernel BUG at ffffffffa0124ea3 [verbose debug info unavailable] [ 491.584794] invalid opcode: 0000 [#2] SMP [ 491.584796] Modules linked in: snd_hrtimer dm_crypt snd_hda_codec_hdmi dm_multipath snd_hda_codec_realtek snd_hda_intel scsi_dh snd_hda_codec snd_hwdep nvidia(POF) kvm_intel parport_pc gpio_ich snd_pcm ppdev serio_raw kvm snd_page_alloc snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer asus_atk0110 snd drm mac_hid microcode soundcore rfcomm bnep bluetooth hwmon_vid coretemp lp parport binfmt_misc btrfs zlib_deflate libcrc32c raid10 raid456 async_memcpy async_raid6_recov async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic hid_a4tech usbhid hid dm_mirror dm_region_hash dm_log firewire_ohci firewire_core crc_itu_t 8139too 8139cp atl1 [ 491.584833] CPU: 1 PID: 2644 Comm: btrfs-endio-wri Tainted: PF D O 3.10.0-031000rc2-generic #201305201835 [ 491.584834] Hardware name: System manufacturer P5KC/P5KC, BIOS 1203 06/25/2008 [ 491.584836] task: ffff880124385dc0 ti: ffff880124aea000 task.ti: ffff880124aea000 [ 491.584838] RIP: 0010:[<ffffffffa0124ea3>] [<ffffffffa0124ea3>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [ 491.584855] RSP: 0018:ffff880124aeb788 EFLAGS: 00010297 [ 491.584857] RAX: 0000000000000000 RBX: ffff8800503c5400 RCX: ffff880124aeb728 [ 491.584858] RDX: 0000000028c68560 RSI: 0000000000000a8c RDI: ffff8800463acc80 [ 491.584860] RBP: ffff880124aeb7b8 R08: 0000000000001000 R09: ffff880124aeb738 [ 491.584861] R10: 000000000002af03 R11: 0000000000000000 R12: ffff880047951380 [ 491.584863] R13: 000000000000004f R14: ffff8800463acb00 R15: 0000041600000000 [ 491.584865] FS: 0000000000000000(0000) GS:ffff88012fc80000(0000) knlGS:0000000000000000 [ 491.584867] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 491.584868] CR2: 00007f0afdc7f000 CR3: 00000000b23bd000 CR4: 00000000000007e0 [ 491.584870] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 491.584871] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 491.584872] Stack: [ 491.584874] ffff880124aeb7a8 ffff8800503c5040 0000041600000000 ffff880000000000 [ 491.584877] 00000000497fb000 ffff880123ae4000 ffff880124aeb808 ffffffffa0124fab [ 491.584879] ffff880047951380 ffff8800503c5400 ffff8801293a9cf0 0000000000000001 [ 491.584882] Call Trace: [ 491.584892] [<ffffffffa0124fab>] tree_mod_log_rewind+0xfb/0x260 [btrfs] [ 491.584901] [<ffffffffa012d1a8>] btrfs_search_old_slot+0x538/0x6c0 [btrfs] [ 491.584910] [<ffffffffa012f4cd>] btrfs_next_old_leaf+0xed/0x450 [btrfs] [ 491.584923] [<ffffffffa01644e6>] ? btrfs_get_token_64+0x26/0xf0 [btrfs] [ 491.584937] [<ffffffffa01a66ac>] add_all_parents.isra.15+0x18c/0x260 [btrfs] [ 491.584949] [<ffffffffa01a68ae>] __resolve_indirect_ref+0x12e/0x150 [btrfs] [ 491.584961] [<ffffffffa01a6966>] __resolve_indirect_refs+0x96/0x1f0 [btrfs] [ 491.584974] [<ffffffffa01a717b>] find_parent_nodes+0x47b/0x6d0 [btrfs] [ 491.584985] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 491.584997] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 491.585009] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 491.585021] [<ffffffffa01a7fa0>] iterate_extent_inodes+0xe0/0x250 [btrfs] [ 491.585034] [<ffffffffa016d395>] ? free_extent_buffer+0x35/0x40 [btrfs] [ 491.585046] [<ffffffffa01a81a2>] iterate_inodes_from_logical+0x92/0xb0 [btrfs] [ 491.585058] [<ffffffffa0153cf0>] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [ 491.585069] [<ffffffffa0150148>] record_extent_backrefs+0x78/0xf0 [btrfs] [ 491.585081] [<ffffffffa015b1e4>] relink_file_extents+0x44/0x180 [btrfs] [ 491.585093] [<ffffffffa015b455>] btrfs_finish_ordered_io+0x135/0x4d0 [btrfs] [ 491.585104] [<ffffffffa015b805>] finish_ordered_fn+0x15/0x20 [btrfs] [ 491.585117] [<ffffffffa017aba0>] worker_loop+0xa0/0x2f0 [btrfs] [ 491.585129] [<ffffffffa017ab00>] ? check_pending_worker_creates.isra.1+0xe0/0xe0 [btrfs] [ 491.585133] [<ffffffff8106b890>] kthread+0xc0/0xd0 [ 491.585136] [<ffffffff8106b7d0>] ? flush_kthread_worker+0xb0/0xb0 [ 491.585140] [<ffffffff816d59dc>] ret_from_fork+0x7c/0xb0 [ 491.585142] [<ffffffff8106b7d0>] ? flush_kthread_worker+0xb0/0xb0 [ 491.585144] Code: c1 49 63 46 58 48 89 c2 48 c1 e2 05 48 8d 54 10 65 49 63 46 2c 48 89 c6 48 c1 e6 05 48 8d 74 30 65 e8 62 9e 04 00 e9 a5 fe ff ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 [ 491.585169] RIP [<ffffffffa0124ea3>] __tree_mod_log_rewind+0x253/0x260 [btrfs] [ 491.585177] RSP <ffff880124aeb788> [ 491.585180] ---[ end trace c99a0e9f2e380155 ]--- -- 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
