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    SubjectRe: alsa 1.0.11, 2.6.17-rc6-mm2, kernel BUG
    On Wed, 14 Jun 2006 23:05:53 +0200
    Norbert Preining <preining@logic.at> wrote:

    > Hi all!
    >
    > I have 2.6.17-rc6-mm2 running, and I wanted to try alsa drivers 1.0.11
    > final to get my hda-intel sound device running.
    >
    > I compiled the drivers (changing system_utsname.xxx to utsname()->xxx)
    > and wanted to load the modules, but when I load the module snd:
    > BUG: unable to handle kernel paging request at virtual address 07400041
    > printing eip:
    > c01c1509
    > *pde = 00000000
    > Oops: 0000 [#1]
    > 8K_STACKS PREEMPT SMP
    > last sysfs file: /devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
    > Modules linked in: snd_timer snd snd_page_alloc isofs zlib_inflate udf usb_storage ipt_MASQUERADE iptable_nat ip_nat ip_conntrack ip_tables x_tables i2c_i801 joydev i2c_core
    > CPU: 0
    > EIP: 0060:[<c01c1509>] Not tainted VLI
    > EFLAGS: 00010286 (2.6.17-rc6-mm2 #10)
    > EIP is at kref_get+0x6/0x3d
    > eax: 07400041 ebx: 07400041 ecx: 00000005 edx: 00000000
    > esi: f6dde604 edi: f6dde60a ebp: f388af60 esp: d58bbe00
    > ds: 007b es: 007b ss: 0068
    > Process modprobe (pid: 11478, threadinfo=d58ba000 task=d95b6000)
    > Stack: 00000007 d95b6114 e5a63aa0 e5a63aa0 07400029 c01c0b17 f6dde580 c0220966
    > c0220ce9 000000d0 dffff4c0 dfffd2c0 c03634d8 c01c0b17 dfead1c0 c01c0e52
    > d58ba000 f6dde617 d95b6000 00000000 ffffffea f6dde580 fffffff4 dfead1c0
    > Call Trace:
    > [<c01c0b17>] kobject_get+0xf/0x13
    > [<c0220966>] class_device_get+0xe/0x14
    > [<c0220ce9>] class_device_add+0x54/0x3a8
    > [<c02210cc>] class_device_create+0x7f/0x9f
    > [<f899c1cd>] snd_register_device+0x129/0x153 [snd]
    > [<f88f3107>] alsa_timer_init+0x107/0x170 [snd_timer]
    > [<c0133846>] sys_init_module+0x16b7/0x188d
    > [<c02f4c5b>] syscall_call+0x7/0xb
    > Code: 10 e9 8e 31 c0 89 f0 83 7e 28 00 0f 85 a8 fc ff ff e9 82 fc ff ff 83 c4 3c
    > 5b 5e 5f 5d c3 c7 00 01 00 00 00 c3 53 83 ec 10 89 c3 <8b> 00 85 c0 75 29 c7 44
    > 24 0c 11 fc 2f c0 c7 44 24 08 20 00 00
    > EIP: [<c01c1509>] kref_get+0x6/0x3d SS:ESP 0068:d58bbe00
    >
    >
    > Does this ring a bell for someone?
    >

    Judging from the response: no.

    If you would, please keep a close eye on -mm's over the next few weeks, let
    us know if/when this bug propagates into -mm. Thanks.
    -
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