Thread: ubuntu 11.04 btrfs mount crash after kernel 3.0 installed

hi,

have/had installed ubuntu 11.04 on btrfs file system. has been working more or less fine. couple of times had reinstall kernel or proprietary catalyst 11.6 graphics driver (or both) until firstly installed ubuntu kernel version 3.0. going freeze in busybox. cold reset working.
moment cannot mount btrfs file system @ all. log got error:


[ 2209.813049] ------------[ cut here ]------------
[ 2209.813051] kernel bug @ /build/buildd/linux-3.0.0/fs/btrfs/inode.c:4586!
[ 2209.813052] invalid opcode: 0000 [#1] smp
[ 2209.813053] cpu 1
[ 2209.813054] modules linked in: ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs nls_iso8859_1 nls_cp437 vfat fat binfmt_misc rfcomm bnep pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv speedstep_lib kvm_intel kvm dm_crypt uvcvideo snd_hda_codec_hdmi videodev ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec parport_pc psmouse v4l2_compat_ioctl32 eeepc_wmi snd_usb_audio snd_usbmidi_lib lp asus_wmi btusb sparse_keymap bluetooth parport snd_hwdep serio_raw snd_pcm mei(c) fglrx(p) snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc usb_storage uas raid10 raid456 async_pq async_xor async_memcpy async_raid6_recov usbhid hid raid6_pq async_tx raid1 raid0 multipath linear dm_raid45 xor btrfs zlib_deflate libcrc32c vesafb mxm_wmi ahci libahci xhci_hcd e1000e wmi
[ 2209.813076]
[ 2209.813077] pid: 19776, comm: mount tainted: p c 3.0.0-8-generic #10-ubuntu system manufacturer system product name/maximus iv extreme
[ 2209.813079] rip: 0010:[<ffffffffa00d72b1>] [<ffffffffa00d72b1>] btrfs_add_link+0x161/0x1c0 [btrfs]
[ 2209.813088] rsp: 0018:ffff8804257957c8 eflags: 00010282
[ 2209.813088] rax: 00000000ffffffef rbx: ffff88032b754098 rcx: 0000000000000092
[ 2209.813089] rdx: 0000000000000091 rsi: 000060fbc0805030 rdi: ffffea000aa7b438
[ 2209.813090] rbp: ffff880425795838 r08: ffffffffa00a91ca r09: ffff880425795748
[ 2209.813091] r10: ffffffffa0115f00 r11: 0000000000000000 r12: ffff88032b754488
[ 2209.813092] r13: ffff8802714d9800 r14: 000000000000000e r15: ffff880306b25000
[ 2209.813093] fs: 00007ffafae9d800(0000) gs:ffff88043f440000(0000) knlgs:0000000000000000
[ 2209.813094] cs: 0010 ds: 0000 es: 0000 cr0: 0000000080050033
[ 2209.813095] cr2: 00007f57ad9bf000 cr3: 000000041eea1000 cr4: 00000000000406e0
[ 2209.813095] dr0: 0000000000000000 dr1: 0000000000000000 dr2: 0000000000000000
[ 2209.813096] dr3: 0000000000000000 dr6: 00000000ffff0ff0 dr7: 0000000000000400
[ 2209.813097] process mount (pid: 19776, threadinfo ffff880425794000, task ffff88033217ade0)
[ 2209.813098] stack:
[ 2209.813099] ffff880400000001 0000000000000078 ffff880425795968 0000000000000078
[ 2209.813100] 0000000000000ece 0000000000000001 0000000000001000 0000000000000000
[ 2209.813102] ffff88042664f000 0000000000000000 000000000000015f ffff880425795aa8
[ 2209.813103] call trace:
[ 2209.813109] [<ffffffffa010034f>] add_inode_ref+0x30f/0x3d0 [btrfs]
[ 2209.813114] [<ffffffffa010242e>] replay_one_buffer+0x27e/0x330 [btrfs]
[ 2209.813119] [<ffffffffa0100a47>] walk_up_log_tree+0x117/0x2a0 [btrfs]
[ 2209.813123] [<ffffffffa0101128>] walk_log_tree+0xd8/0x240 [btrfs]
[ 2209.813127] [<ffffffffa010404d>] btrfs_recover_log_trees+0x22d/0x330 [btrfs]
[ 2209.813132] [<ffffffffa01021b0>] ? replay_one_extent+0x580/0x580 [btrfs]
[ 2209.813137] [<ffffffffa00c949d>] open_ctree+0x13ed/0x1790 [btrfs]
[ 2209.813139] [<ffffffff812f7c74>] ? snprintf+0x34/0x40
[ 2209.813143] [<ffffffffa00a4838>] btrfs_fill_super.clone.25+0x78/0x150 [btrfs]
[ 2209.813145] [<ffffffff811d7c64>] ? disk_name+0x64/0xc0
[ 2209.813146] [<ffffffff812f49a7>] ? strlcpy+0x47/0x60
[ 2209.813150] [<ffffffffa00a6766>] btrfs_mount+0x3b6/0x460 [btrfs]
[ 2209.813153] [<ffffffff811723d7>] mount_fs+0x47/0x1c0
[ 2209.813154] [<ffffffff8118cfe3>] vfs_kern_mount+0x63/0xd0
[ 2209.813156] [<ffffffff8118d894>] do_kern_mount+0x54/0x110
[ 2209.813157] [<ffffffff8118f40a>] do_mount+0x1ea/0x230
[ 2209.813159] [<ffffffff8118f830>] sys_mount+0x90/0xe0
[ 2209.813161] [<ffffffff815f1d82>] system_call_fastpath+0x16/0x1b
[ 2209.813161] code: 44 89 f1 4c 89 ee 4c 89 ff 4c 89 1c 24 4c 89 55 a8 4c 89 5d a0 e8 c0 b1 fe ff 4c 8b 5d a0 4c 8b 55 a8 85 c0 75 b4 e9 2d ff ff ff <0f> 0b 49 8b b4 24 68 fe ff ff 48 8d 7d b0 b9 11 00 00 00 4d 89
[ 2209.813173] rip [<ffffffffa00d72b1>] btrfs_add_link+0x161/0x1c0 [btrfs]
[ 2209.813178] rsp <ffff8804257957c8>
[ 2209.813179] ---[ end trace e8dcfe86883a4fa2 ]---


know how fix it?

help,
martin

unfortunately application of btrfs-zero-log git repository did not on kernel 3.0.3. but, have read should fixed in 3.1 kernel ... .

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