Segmentation fault on partition mount

DISCUSSION Ilya Shestopalov 1 participant 1 message May 5, 2010 Btrfs file system

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Ilya Shestopalov

author

2010-05-05 04:33 UTC #0 lore raw

Thanks all, I found the solution: http://www.mail-archive.com/linux-btr=
[email protected]/msg04275.html
1). Apply patch to the kernel source
2). mount -t btrfs -o subvol=3D/dev/sda5,danger_del_log_tree /dev/sda5 = /mount/point
3). mount as usual

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Please fix this bug (SEGFAULT), I
can't access to my partition. Image of partition you can download here:
=20
http://narod.ru/disk/20400152000/btrfs_dump.z.html
=20
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kernel BUG at fs/btrfs/tree-log.c:809!
invalid opcode: 0000 [#1] PREEMPT SMP=20
last sysfs file:
/sys/devices/pci0000:00/0000:00:1f.2/host3/target3:0:0/3:0:0:0/scsi_l=

evel

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Modules linked in: btrfs zlib_deflate crc32c libcrc32c
fuse
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usbhid hid snd_hda_codec_analog snd_seq_dummy
snd_seq_oss
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snd_seq_midi_event snd_seq snd_seq_device
snd_hda_intel
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snd_hda_codec snd_hwdep snd_pcm snd_timer snd
soundcore
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snd_page_alloc rtc_cmos rtc_core rtc_lib uhci_hcd asus_atk0110 nvidia(P) agpgart firewire_ohci
firewire_core
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crc_itu_t ehci_hcd usbcore i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support thermal button processor sky2
x38_edac
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edac_core sg evdev pcspkr ext4 mbcache jbd2 crc16
sr_mod
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sd_mod cdrom floppy pata_jmicron ata_piix pata_acpi ata_generic libata scsi_mod
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Pid: 2889, comm: mount Tainted: P=9A =9A =9A =9A =9A=9A=9A2.6.33-ARCH #1 P5E/P5E
EIP: 0060:[<f9f468b9>] EFLAGS: 00010246 CPU: 1 EIP is at add_inode_ref+0x3e9/0x400 [btrfs]
EAX: 00000000 EBX: 00000097 ECX: 00000000 EDX:
000000a9
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ESI: 00000002 EDI: f6ea4b40 EBP: f69e9c40 ESP:
f69e9be4
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DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process mount (pid: 2889, ti=3Df69e8000 task=3Df653e1a0 task.ti=3Df69e8000)
Stack:
f69e9bf8 f69e9bf8 c102ade0 f6ea4b40 00000011 f69e9c00 f9f3991c f69e9c40
<0> f9f2e36f f69e9c30 00000000 f6ea5000
f6df83dc
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00000004 00000000 f6ea4b40
<0> f6810000 f6810800 fffa3000 fffa3000
00000097
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00000002 f6ea4b40 f69e9ca4
Call Trace:
[<c102ade0>] ? kunmap_atomic+0x70/0x80
[<f9f3991c>] ? unmap_extent_buffer+0xc/0x10
[btrfs]
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[<f9f2e36f>] ? btrfs_item_size+0xdf/0xf0
[btrfs]
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[<f9f477fe>] ? replay_one_buffer+0x23e/0x310
[btrfs]
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[<f9f44d70>] ? walk_down_log_tree+0x210/0x510 [btrfs]
[<f9f45111>] ? walk_log_tree+0xa1/0x1c0 [btrfs] [<f9f4962b>] ?
btrfs_recover_log_trees+0x1cb/0x290
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[btrfs]
[<f9f475c0>] ? replay_one_buffer+0x0/0x310
[btrfs]
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[<f9f14f58>] ? open_ctree+0x10b8/0x15d0 [btrfs] [<c1185249>] ? strlcpy+0x39/0x50
[<f9ef8760>] ? btrfs_get_sb+0x310/0x3f0 [btrfs] [<c10ed24a>] ? __alloc_percpu+0xa/0x10 [<c110be56>] ? alloc_vfsmnt+0xe6/0x140 [<c10f69b1>] ? vfs_kern_mount+0x61/0x1b0 [<c110ac87>] ? get_fs_type+0x97/0xb0 [<c10f6b59>] ? do_kern_mount+0x39/0xe0 [<c110d398>] ? do_mount+0x358/0x700 [<c10cf0c4>] ? strndup_user+0x44/0x80 [<c110d9e6>] ? sys_mount+0x66/0xa0 [<c100371f>] ? sysenter_do_call+0x12/0x28
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Code: 8b 45 e4 e8 ca 39 fb ff 8b 45 d4 e8 e2 15 1c c7
8b 45
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cc e8 da 15 1c c7 31 c0 83 c4 50 5b 5e 5f 5d c3 b8 fe
ff ff
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ff eb f1 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b
0f 0b
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8d 74 26 00 8d bc 27 00 00=20
EIP: [<f9f468b9>] add_inode_ref+0x3e9/0x400
[btrfs]

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SS:ESP 0068:f69e9be4
---[ end trace 1d3c13495ff7bd0e ]---
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