Hi,guys,
My graphic card is ATI radeon 7500 with 128M memory.
I want to write several megabytes image data into video
memory for later use. But everytime when I tried to write
data more than 512kB, the system generated following error:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Unable to handle kernel paging request at virtual address e8ad3000
printing eip:
e88ce4b1
*pde = 01922067
*pte = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<e88ce4b1>] Not tainted
EFLAGS: 00010283
eax: a3a3a3a3 ebx: 00080000 ecx: 00000001 edx: e88d3000
esi: e8d0f8a8 edi: 0000ad00 ebp: d9cf3f24 esp: d9cf3ecc
ds: 0018 es: 0018 ss: 0018
Process stim (pid: 1334, stackpage=d9cf3000)
Stack: 00000005 db201000 00000feb 00002140 000009d0 000011a0 000032e0
000032e0
000032e0 0001d4c0 00080000 00000004 03200005 00000000 00000004
d9cf3f5c
0000000c e88a5100 e88a5118 00000246 e88a5100 e88a5118 00000000
e88a34d6
Call Trace: [<e88a5100>] [<e88a5118>] [<e88a5100>] [<e88a5118>]
[<e88a34d6>]
[<e88a5118>] [<c011087c>] [<c012d746>] [<c0106c3b>]
Code: 89 04 9a 8b 44 be 04 89 44 9a 04 8b 44 be 08 89 44 9a 08 8b
UNMAPPING AREA 6666 AT KERNEL REQUEST.
UNMAPPING AREA 7777 AT KERNEL REQUEST.
UNMAPPING AREA 8888 AT KERNEL REQUEST.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
What's this kernel paging problem about? Can anyone give me some hints?
Thanks in advance,
jing
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