Hello, after a crash with linux 3.8.0, I'm unable to mount my btrfs root filesystem. I tried with a archlinux rescue cd with a linux 3.7.5, but I got the following errors:
First trying to fix the fs: # btrfsck usage: btrfsck dev Btrfs v0.20-rc1 # btrfsck /dev/sdd2 checking extents checking fs roots checking root refs [1] 1051 segmentation fault (core dumped) btrfsck /dev/sdd2 # dmesg|grep 1051 [ 956.804097] btrfsck[1051]: segfault at 7f563c319410 ip 00007f56307c4c25 sp 00007ffffa7fbdf0 error 4 in libc-2.17.so[7f563074a000+1a4000] Trying to mount the FS i got a OOPS. # mount /dev/sdd2 /new_root [ 60.602232] device label bitumefs devid 1 transid 40042 /dev/sdd2 [ 60.603629] btrfs: disk space caching is enabled [ 60.615642] Btrfs detected SSD devices, enabling SSD mode [ 60.769651] ------------[ cut here ]------------ [ 60.769709] kernel BUG at fs/btrfs/free-space-cache.c:1553! [ 60.769764] invalid opcode: 0000 [#1] PREEMPT SMP [ 60.769833] Modules linked in: raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor async_tx md_mod coretemp kvm_intel iTCO_wdt iTCO_vendor_support gpio_ich acpi_cpufreq i2c_i801 mei mperf kvm lpc_ich pcspkr processor evdev microcode nfs lockd sunrpc fscache ext4 crc16 jbd2 mbcache dm_snapshot dm_mod squashfs loop isofs btrfs libcrc32c zlib_deflate sr_mod cdrom usb_storage sd_mod i915 video i2c_algo_bit ahci uhci_hcd crc32c_intel drm_kms_helper libahci xhci_hcd ehci_hcd r8169 mii drm usbcore usb_common i2c_core sata_mv libata scsi_mod intel_agp intel_gtt button [ 60.770686] CPU 0 [ 60.770712] Pid: 515, comm: mount Not tainted 3.7.5-1-ARCH #1 Gigabyte Technology Co., Ltd. H55N-USB3/H55N-USB3 [ 60.772551] RIP: 0010:[<ffffffffa03cd59f>] [<ffffffffa03cd59f>] remove_from_bitmap+0x16f/0x180 [btrfs] [ 60.774452] RSP: 0018:ffff88010d231698 EFLAGS: 00010287 [ 60.776343] RAX: 0000000000000000 RBX: ffff88010e8238c0 RCX: ffff880110b433e4 [ 60.778270] RDX: 00000002019d6000 RSI: 0000000000008000 RDI: 00000000000000c0 [ 60.780211] RBP: ffff88010d2316e8 R08: ffff880110031fe8 R09: 0000000000007f40 [ 60.782139] R10: 0000000000000000 R11: ffffffffa037b428 R12: ffff88010d231710 [ 60.784063] R13: ffff88010d231708 R14: ffff880110b433c0 R15: 0000000201c00000 [ 60.785998] FS: 00007fbb73158780(0000) GS:ffff880117c00000(0000) knlGS:0000000000000000 [ 60.787971] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 60.789952] CR2: 00007fd73954ea30 CR3: 000000010fa26000 CR4: 00000000000007f0 [ 60.791962] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.793991] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 60.796043] Process mount (pid: 515, threadinfo ffff88010d230000, task ffff88010f0938e0) [ 60.798148] Stack: [ 60.800233] ffff88010d2318a3 ffff880110b433e4 0000000201b48000 0000000000021000 [ 60.802404] ffff88010d231748 ffff88010e8238c0 ffff880110b433c0 00000000fffffff5 [ 60.804598] ffff880110b433e4 ffff880111faa800 ffff88010d231748 ffffffffa03cf8f3 [ 60.806813] Call Trace: [ 60.809009] [<ffffffffa03cf8f3>] btrfs_remove_free_space+0x53/0x260 [btrfs] [ 60.811262] [<ffffffffa038309f>] btrfs_alloc_logged_file_extent+0x1bf/0x1e0 [btrfs] [ 60.813532] [<ffffffffa036f1ea>] ? btrfs_free_path+0x2a/0x40 [btrfs] [ 60.815815] [<ffffffffa03c8990>] replay_one_extent+0x620/0x690 [btrfs] [ 60.818095] [<ffffffffa03aca29>] ? release_extent_buffer.isra.26+0xb9/0xe0 [btrfs] [ 60.820373] [<ffffffffa03b30c3>] ? read_extent_buffer+0xc3/0x120 [btrfs] [ 60.822662] [<ffffffffa03c9a1b>] replay_one_buffer+0x2db/0x3a0 [btrfs] [ 60.824982] [<ffffffffa03b19bd>] ? alloc_extent_buffer+0x9d/0x490 [btrfs] [ 60.827336] [<ffffffffa03c63e2>] walk_down_log_tree+0x212/0x400 [btrfs] [ 60.829689] [<ffffffffa03c666d>] walk_log_tree+0x9d/0x1f0 [btrfs] [ 60.832043] [<ffffffffa03cc9eb>] btrfs_recover_log_trees+0x21b/0x3a0 [btrfs] [ 60.834427] [<ffffffffa03c9740>] ? replay_one_dir_item+0xf0/0xf0 [btrfs] [ 60.836830] [<ffffffffa03929d7>] open_ctree+0x1587/0x1ba0 [btrfs] [ 60.839233] [<ffffffff81255091>] ? disk_name+0x61/0xc0 [ 60.841637] [<ffffffffa036bae3>] btrfs_mount+0x633/0x770 [btrfs] [ 60.844056] [<ffffffff8126a8f8>] ? ida_get_new_above+0x218/0x2a0 [ 60.846488] [<ffffffff81188163>] mount_fs+0x43/0x1b0 [ 60.848896] [<ffffffff81142e40>] ? __alloc_percpu+0x10/0x20 [ 60.851296] [<ffffffff811a2974>] vfs_kern_mount+0x74/0x110 [ 60.853691] [<ffffffff811a2ed4>] do_kern_mount+0x54/0x110 [ 60.856083] [<ffffffff811a4b55>] do_mount+0x315/0x8e0 [ 60.858464] [<ffffffff8113d776>] ? memdup_user+0x46/0x80 [ 60.860833] [<ffffffff8113d80b>] ? strndup_user+0x5b/0x80 [ 60.863144] [<ffffffff811a51ae>] sys_mount+0x8e/0xe0 [ 60.865399] [<ffffffff814c111d>] system_call_fastpath+0x1a/0x1f [ 60.867600] Code: 8e 0f 1f 00 31 c0 48 83 7b 20 00 75 d5 48 89 de 4c 89 f7 89 45 b0 e8 01 f8 ff ff 8b 45 b0 eb c2 0f 1f 40 00 b8 ea ff ff ff eb b7 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 [ 60.872568] RIP [<ffffffffa03cd59f>] remove_from_bitmap+0x16f/0x180 [btrfs] [ 60.874877] RSP <ffff88010d231698> [ 60.877135] ---[ end trace fca18cc0fac23f5f ]--- [ 60.879348] note: mount[515] exited with preempt_count 1 [ 60.881522] BUG: scheduling while atomic: mount/515/0x10000002 [ 60.883682] Modules linked in: raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor async_tx md_mod coretemp kvm_intel iTCO_wdt iTCO_vendor_support gpio_ich acpi_cpufreq i2c_i801 mei mperf kvm lpc_ich pcspkr processor evdev microcode nfs lockd sunrpc fscache ext4 crc16 jbd2 mbcache dm_snapshot dm_mod squashfs loop isofs btrfs libcrc32c zlib_deflate sr_mod cdrom usb_storage sd_mod i915 video i2c_algo_bit ahci uhci_hcd crc32c_intel drm_kms_helper libahci xhci_hcd ehci_hcd r8169 mii drm usbcore usb_common i2c_core sata_mv libata scsi_mod intel_agp intel_gtt button [ 60.895808] Pid: 515, comm: mount Tainted: G D 3.7.5-1-ARCH #1 [ 60.898163] Call Trace: [ 60.900492] [<ffffffff814b0a5c>] __schedule_bug+0x4d/0x59 [ 60.902838] [<ffffffff814b84da>] __schedule+0x8da/0x920 [ 60.905164] [<ffffffff81165f60>] ? alloc_pages_current+0xb0/0x120 [ 60.907488] [<ffffffff8108ae8a>] __cond_resched+0x2a/0x40 [ 60.909787] [<ffffffff814b859f>] _cond_resched+0x2f/0x40 [ 60.912050] [<ffffffff81148e2c>] unmap_single_vma+0x44c/0x870 [ 60.914296] [<ffffffff8112e570>] ? release_pages+0x1f0/0x230 [ 60.916540] [<ffffffff81149ab2>] unmap_vmas+0x52/0xa0 [ 60.918757] [<ffffffff81151a58>] exit_mmap+0x98/0x170 [ 60.920949] [<ffffffff810547a1>] mmput+0x61/0x120 [ 60.923131] [<ffffffff8105ce38>] exit_mm+0x108/0x130 [ 60.925289] [<ffffffff814b9535>] ? _raw_spin_unlock_irq+0x35/0x40 [ 60.927464] [<ffffffff8105cfba>] do_exit+0x15a/0x940 [ 60.929616] [<ffffffff814b04ef>] ? printk+0x4d/0x4f [ 60.931749] [<ffffffff8105ad41>] ? kmsg_dump+0xc1/0xd0 [ 60.933870] [<ffffffff814baa7d>] oops_end+0x9d/0xe0 [ 60.935985] [<ffffffff81018ed8>] die+0x58/0x90 [ 60.938074] [<ffffffff814ba35b>] do_trap+0x6b/0x170 [ 60.940163] [<ffffffff81016465>] do_invalid_op+0x95/0xb0 [ 60.942260] [<ffffffffa03cd59f>] ? remove_from_bitmap+0x16f/0x180 [btrfs] [ 60.944357] [<ffffffffa036edd9>] ? btrfs_set_path_blocking+0x39/0x80 [btrfs] [ 60.946456] [<ffffffffa03745b4>] ? btrfs_search_slot+0x504/0x900 [btrfs] [ 60.948554] [<ffffffffa03abb7c>] ? check_buffer_tree_ref+0x3c/0x50 [btrfs] [ 60.950668] [<ffffffffa03abb7c>] ? check_buffer_tree_ref+0x3c/0x50 [btrfs] [ 60.952742] [<ffffffff814c229e>] invalid_op+0x1e/0x30 [ 60.954806] [<ffffffffa037b428>] ? cache_block_group.isra.46+0x2f8/0x3e0 [btrfs] [ 60.956917] [<ffffffffa03cd59f>] ? remove_from_bitmap+0x16f/0x180 [btrfs] [ 60.959032] [<ffffffffa03cd49d>] ? remove_from_bitmap+0x6d/0x180 [btrfs] [ 60.961138] [<ffffffffa03cf8f3>] btrfs_remove_free_space+0x53/0x260 [btrfs] [ 60.963263] [<ffffffffa038309f>] btrfs_alloc_logged_file_extent+0x1bf/0x1e0 [btrfs] [ 60.965404] [<ffffffffa036f1ea>] ? btrfs_free_path+0x2a/0x40 [btrfs] [ 60.967554] [<ffffffffa03c8990>] replay_one_extent+0x620/0x690 [btrfs] [ 60.969712] [<ffffffffa03aca29>] ? release_extent_buffer.isra.26+0xb9/0xe0 [btrfs] [ 60.971894] [<ffffffffa03b30c3>] ? read_extent_buffer+0xc3/0x120 [btrfs] [ 60.973996] [<ffffffffa03c9a1b>] replay_one_buffer+0x2db/0x3a0 [btrfs] [ 60.976020] [<ffffffffa03b19bd>] ? alloc_extent_buffer+0x9d/0x490 [btrfs] [ 60.978012] [<ffffffffa03c63e2>] walk_down_log_tree+0x212/0x400 [btrfs] [ 60.980004] [<ffffffffa03c666d>] walk_log_tree+0x9d/0x1f0 [btrfs] [ 60.981989] [<ffffffffa03cc9eb>] btrfs_recover_log_trees+0x21b/0x3a0 [btrfs] [ 60.983975] [<ffffffffa03c9740>] ? replay_one_dir_item+0xf0/0xf0 [btrfs] [ 60.985972] [<ffffffffa03929d7>] open_ctree+0x1587/0x1ba0 [btrfs] [ 60.987905] [<ffffffff81255091>] ? disk_name+0x61/0xc0 [ 60.989791] [<ffffffffa036bae3>] btrfs_mount+0x633/0x770 [btrfs] [ 60.991621] [<ffffffff8126a8f8>] ? ida_get_new_above+0x218/0x2a0 [ 60.993400] [<ffffffff81188163>] mount_fs+0x43/0x1b0 [ 60.995114] [<ffffffff81142e40>] ? __alloc_percpu+0x10/0x20 [ 60.996809] [<ffffffff811a2974>] vfs_kern_mount+0x74/0x110 [ 60.998490] [<ffffffff811a2ed4>] do_kern_mount+0x54/0x110 [ 61.000155] [<ffffffff811a4b55>] do_mount+0x315/0x8e0 [ 61.001836] [<ffffffff8113d776>] ? memdup_user+0x46/0x80 [ 61.003506] [<ffffffff8113d80b>] ? strndup_user+0x5b/0x80 [ 61.005168] [<ffffffff811a51ae>] sys_mount+0x8e/0xe0 [ 61.006825] [<ffffffff814c111d>] system_call_fastpath+0x1a/0x1f Is there something I can do to fix my filesystem? -- Sébastien "Seblu" Luttringer https://www.seblu.net GPG: 0x2072D77A -- 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
