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    SubjectAGP Oops (was Re: 2.6.10-mm2)
    Date
    Got the following upon starting X (Debian sid's 4.3.0.dfsg.1-10).
    Was fine with 2.6.10-mm1. Radeon card, VIA AGP.


    Unable to handle kernel NULL pointer dereference at virtual address 00000004
    printing eip:
    c025a386
    *pde = 78f84067
    Oops: 0000 [#1]
    SMP
    CPU: 1
    EIP: 0060:[<c025a386>] Not tainted VLI
    EFLAGS: 00013246 (2.6.10-mm2)
    EIP is at agp_bind_memory+0x56/0x80
    eax: 00000000 ebx: 00000000 ecx: 00000000 edx: 00000000
    esi: f027c0e0 edi: 00000000 ebp: f027c3a0 esp: f6c83f10
    ds: 007b es: 007b ss: 0068
    Process XFree86 (pid: 2160, threadinfo=f6c83000 task=efc3aaa0)
    Stack: bffffab0 c0214a04 00000000 c23ed000 f7d6ff40 c02645df 00000000 0000a1b6
    00000000 00000000 00000001 00000000 00000036 c23ed000 c0264550 c025ffe5
    bffffab0 f6c83f50 00000005 bffff95c f6c83000 efc3aaa0 086de8c0 40086436
    Call Trace:
    [<c0214a04>] copy_from_user+0x34/0x70
    [<c02645df>] drm_agp_bind+0x8f/0xf0
    [<c0264550>] drm_agp_bind+0x0/0xf0
    [<c025ffe5>] drm_ioctl+0x105/0x201
    [<c0163c1a>] do_ioctl+0x8a/0xb0
    [<c0163e5a>] sys_ioctl+0x7a/0x200
    [<c01025ad>] sysenter_past_esp+0x52/0x75
    Code: 89 fa 8b 4e 20 8b 58 04 89 f0 ff 53 40 85 c0 75 07 c6 46 28 01 89 7e 1c 8b 5c 24 08 8b 74 24 0c 8b 7c 24 10 83 c4 14 c3 8b 46 08 <8b> 40 04 ff 50 34 c6 46 29 01 eb c6 89 74 24 04 c7 04 24 f4 d4
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