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    SubjectRe: system keeps freezing once every 24 hours / random apps crashing
    On Sat, Dec 31, 2005 at 04:18:38PM +0100, Mark v Wolher wrote:
    ...
    > Here is new data, this time it had to do with bttv:
    >
    > Dec 31 16:11:35 localhost kernel: Unable to handle kernel paging request at
    > virtual address d162e000
    > Dec 31 16:11:35 localhost kernel: printing eip:
    > Dec 31 16:11:35 localhost kernel: c036037a
    > Dec 31 16:11:35 localhost kernel: *pgd = 46063
    > Dec 31 16:11:35 localhost kernel: *pmd = 46063
    > Dec 31 16:11:35 localhost kernel: *pte = 1162e000
    > Dec 31 16:11:35 localhost kernel: Oops: 0002 [#1]
    > Dec 31 16:11:35 localhost kernel: SMP DEBUG_PAGEALLOC
    > Dec 31 16:11:35 localhost kernel: Modules linked in: nv
    > Dec 31 16:11:35 localhost kernel: CPU: 2
    > Dec 31 16:11:35 localhost kernel: EIP: 0060:[bttv_risc_packed+394/432]

    Can you try how many seconds it takes to get Oops/crash when you start
    pressing 'v' in xawtv (video capture on/off).
    For me, not very many.

    This happens with every 2.6 kernel. And my hardware is OK.

    > Not tainted VLI
    > Dec 31 16:11:35 localhost kernel: EFLAGS: 00210202 (2.6.14.5)
    > Dec 31 16:11:35 localhost kernel: eax: 14000008 ebx: d5ce9800 ecx:
    > d162e000 edx: 00000008
    > Dec 31 16:11:35 localhost kernel: esi: 00000008 edi: 000000ff ebp:
    > cd06dde8 esp: cd06ddd0
    > Dec 31 16:11:35 localhost kernel: ds: 007b es: 007b ss: 0068
    > Dec 31 16:11:35 localhost kernel: Process xawtv (pid: 31110,
    > threadinfo=cd06c000 task=ca871aa0)
    > Dec 31 16:11:35 localhost kernel: Stack: df80bbf8 c3b25fbc 00000fd0 00000c00
    > 000d8000 c3b25ef8 cd06de40 c0361b0b
    > Dec 31 16:11:35 localhost kernel: c06ccba0 c3b25fbc d5ce8000 00000c00
    > 00000c00 00000c00 00000120 000001b1
    > Dec 31 16:11:35 localhost kernel: 00000008 c3b25f1c c06cd168 00000000
    > cd06de40 c037022a df80bbf8 c3b25f1c
    > Dec 31 16:11:35 localhost kernel: Call Trace:
    > Dec 31 16:11:35 localhost kernel: [show_stack+127/160]
    > Dec 31 16:11:35 localhost kernel: [show_registers+347/448]
    > Dec 31 16:11:35 localhost kernel: [die+256/384]
    > Dec 31 16:11:35 localhost kernel: [do_page_fault+1084/2083]
    > Dec 31 16:11:35 localhost kernel: [error_code+79/96]
    > Dec 31 16:11:35 localhost kernel: [bttv_buffer_risc+1371/1696]
    > Dec 31 16:11:35 localhost kernel: [bttv_prepare_buffer+268/464]
    > Dec 31 16:11:35 localhost kernel: [buffer_prepare+69/80]
    > Dec 31 16:11:35 localhost kernel: [videobuf_read_zerocopy+108/304]
    > Dec 31 16:11:35 localhost kernel: [videobuf_read_one+522/560]
    > Dec 31 16:11:35 localhost kernel: [bttv_read+272/352]
    > Dec 31 16:11:35 localhost kernel: [vfs_read+213/432]
    > Dec 31 16:11:35 localhost kernel: [sys_read+75/128]
    > Dec 31 16:11:35 localhost kernel: [syscall_call+7/11]
    > Dec 31 16:11:35 localhost kernel: Code: 00 0d 00 00 00 10 89 01 8b 43 08 83
    > c1 04 89 01 8b 43 0c 83 c1 04 83 c3 10 29 c2 8b 43 0c 39 c2 77 df 89 d0 89
    > d6 0d 00 00 00 14 <89> 01 8b 43 08 83 c1 04 89 01 83 c1 04 eb 8a 8d b4 26 00
    > 00 00

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