[Bug 856] New: Kernel bug with 2.6.32-rc6 running xfstests on Fuloong 2E

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=856

           Summary: Kernel bug with 2.6.32-rc6 running xfstests on Fuloong
                    2E
           Product: XFS
           Version: Current
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: XFS kernel code
        AssignedTo: xfs-masters@xxxxxxxxxxx
        ReportedBy: devel.sjanki@xxxxxxxxx
   Estimated Hours: 0.0
    Classification: Unclassified


I get a kernel bug with 2.6.32-rc6-fuloong2e-xfs while running xfstests on my
Fuloong 2E. I've used fuloong2e-defconfig, 64-bit, enabled xfs with debug
support and built it with gcc 4.2.4 and binutils 2.19.1. I hope the following
trace will help debug this issue:

XFS mounting filesystem sda1
Device sda1 - bad inode magic/vsn daddr 64 #8 (magic=5858)
Kernel bug detected[#1]:
Cpu 0
$ 0   : 0000000000000000 000000001000a4e0 0000000000000001 0000000000000001
$ 4   : ffffffff805f0b88 000000000000303b ffffffffffffffff 000000000000303b
$ 8   : 0000000000000000 0000000000000004 0000000000000000 0000000000000004
$12   : 000000000000000f 0000000007070707 ffffffff8050bed0 0000000000000010
$16   : 000000001000a4e1 ffffffff806b0000 0000000000000000 0000000000000008
$20   : 0000000000000000 980000004d933700 980000004e3cbb70 980000004ed9c810
$24   : 0000000000000000 ffffffff80354818                                  
$28   : 980000004e3c8000 980000004e3cba80 0000000000000000 ffffffff802f9ba8
Hi    : 0000000000000000
Lo    : 0000000000000002
epc   : ffffffff802f9bc4 cmn_err+0xe4/0x100
    Not tainted
ra    : ffffffff802f9ba8 cmn_err+0xc8/0x100
Status: 1000a4e3    KX SX UX KERNEL EXL IE 
Cause : 10000034
PrId  : 00006302 (ICT Loongson-2)
Modules linked in: snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq
snd_pcm_oss snd_mixer_oss snd_via82xx snd_ac97_codec ac97_bus snd_pcm snd_timer
snd_page_alloc snd_mpu401_uart snd_rawmidi i2c_viapro snd_seq_device uhci_hcd
snd i2c_core
Process mount (pid: 2004, threadinfo=980000004e3c8000, task=980000004e35e2e0,
tls=000000002aad4660)
Stack : 980000004e3cbab0 980000004e51810c 980000004e3cbae8 980000004ef30800
        980000004ed9c600 ffffffff802c2cb8 980000004e3cbae8 0000000000000040
        0000000000000008 0000000000005858 0000000000000000 0000000000000000
        980000004e3bc740 ffffff0031616473 ffffffff80500000 0000000000000080
        980000004e605580 ffffffff801c3ef4 0000000000000000 ffffffff802c5878
        0000000000000000 980000004d9336e0 980000004d933700 0000000000000000
        0000000000000000 980000004ed9c600 0000000000000000 0000000000000080
        980000004e605580 ffffffff802c5878 980000004d9336e0 ffffffff806b0000
        980000004d9336e0 0000000000000016 000000000000000c 980000004ed9c200
        980000004ed9c600 ffffffff806054d0 980000004e6055c8 ffffffff802bdee0
        ...
Call Trace:
[<ffffffff802f9bc4>] cmn_err+0xe4/0x100
[<ffffffff802c2cb8>] xfs_imap_to_bp+0x280/0x2a0
[<ffffffff802c5878>] xfs_iread+0x98/0x288
[<ffffffff802bdee0>] xfs_iget+0x260/0x468
[<ffffffff802db544>] xfs_mountfs+0x3bc/0x6d8
[<ffffffff802f7d08>] xfs_fs_fill_super+0x228/0x400
[<ffffffff801caf2c>] get_sb_bdev+0x1bc/0x200
[<ffffffff801caa20>] vfs_kern_mount+0x60/0xf0
[<ffffffff801cab14>] do_kern_mount+0x54/0x120
[<ffffffff801e3a0c>] do_mount+0x464/0x770
[<ffffffff8020a56c>] compat_sys_mount+0xa4/0x268
[<ffffffff8010396c>] handle_sys+0x10c/0x128


Code: 02018025  40906000  2e420001 <00028036> dfbf0028  dfb20020  dfb10018 
dfb00010  03e00008 
Disabling lock debugging due to kernel taint



If you need anymore information, I will be glad to provide that.

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