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    Subject[BUG] Ali snd soft lookup on 2.6.14 (regression)
    Recently I upgrade from 2.6.10 to 2.6.14 and I my sound card doesn't
    work anymore.
    dmesg shows:
    BUG: soft lockup detected on CPU#0!

    Pid: 3798, comm: modprobe
    EIP: 0060:[<dcb09031>] CPU: 0
    EIP is at snd_ali_codec_ready+0x31/0x90 [snd_ali5451]
    EFLAGS: 00000212 Not tainted (2.6.14-1-686)
    EAX: 5374807e EBX: 5374807e ECX: 00008800 EDX: 00008840
    ESI: fffbeeb4 EDI: dada6000 EBP: 00000040 DS: 007b ES: 007b
    CR0: 8005003b CR2: b7f18000 CR3: 1acf4000 CR4: 000006d0
    [<dcb092a8>] snd_ali_codec_peek+0xb8/0xf0 [snd_ali5451]
    [<dcb09353>] snd_ali_codec_read+0x23/0x30 [snd_ali5451]
    [<dcad9235>] snd_ac97_read+0x35/0x50 [snd_ac97_codec]
    [<dcae0c91>] patch_ad1881_chained1+0x71/0x100 [snd_ac97_codec]
    [<dcae0e85>] patch_ad1881_chained+0x165/0x1a0 [snd_ac97_codec]
    [<dcae1057>] patch_ad1881+0x197/0x1e0 [snd_ac97_codec]
    [<dcae13b0>] patch_ad1981b+0x10/0x50 [snd_ac97_codec]
    [<dcadc74e>] snd_ac97_mixer+0x2ee/0xc90 [snd_ac97_codec]
    [<dca069d4>] snd_info_register+0x34/0xa0 [snd]
    [<c01492cf>] kzalloc+0x1f/0x50
    [<dca0968d>] snd_device_new+0x1d/0x70 [snd]
    [<dcadc338>] snd_ac97_bus+0x78/0xb0 [snd_ac97_codec]
    [<dcb0b0cd>] snd_ali_mixer+0xed/0x120 [snd_ali5451]
    [<dcb0afc0>] snd_ali_mixer_free_ac97+0x0/0x20 [snd_ali5451]
    [<dcb0bbdf>] snd_ali_probe+0xcf/0x170 [snd_ali5451]
    [<c01da326>] pci_match_device+0x26/0xc0
    [<c01da436>] __pci_device_probe+0x56/0x70
    [<c01da47f>] pci_device_probe+0x2f/0x50
    [<c0231fa3>] driver_probe_device+0x43/0xd0
    [<c02320b0>] __driver_attach+0x0/0x50
    [<c02320f1>] __driver_attach+0x41/0x50
    [<c02314dd>] bus_for_each_dev+0x5d/0x80
    [<c0232125>] driver_attach+0x25/0x30
    [<c02320b0>] __driver_attach+0x0/0x50
    [<c0231a39>] bus_add_driver+0x89/0xf0
    [<c01da6f2>] pci_register_driver+0x62/0x90
    [<dca8f00f>] alsa_card_ali_init+0xf/0x11 [snd_ali5451]
    [<c01371d1>] sys_init_module+0xc1/0x1a0
    [<c01030b5>] syscall_call+0x7/0xb
    lspci -v
    0000:00:04.0 Multimedia audio controller: ALi Corporation M5451 PCI
    AC-Link Controller Audio Device (rev 02)
    Subsystem: Sony Corporation: Unknown device 8158
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
    >TAbort- <TAbort-<MAbort- >SERR+ <PERR+
    Latency: 64 (500ns min, 6000ns max)
    Interrupt: pin A routed to IRQ 11
    Region 0: I/O ports at 8800 [size=256]
    Region 1: Memory at e0401000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: [dc] Power Management version 2
    Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

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      Last update: 2005-11-10 23:21    [W:0.050 / U:19.456 seconds]
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