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Subject[2.4] Nforce2 oops and occasional hang (tried the lockups patch, no difference)
I've posted this a couple of times, with no response.

So long as memory pressure is kept to a minimum, the system is stable.
Running without swap and without serious work kept it going for a couple
of weeks.

Running (currently with the nforce2-lockups patches and HZ=1000 but no
APIC/IO-APIC) results in the same oopses as every kernel I've tried,
including 2.4.22.

Suggestions? I'd really love to be able to use this thing reliably under
Linux :(

Unable to handle kernel NULL pointer dereference at virtual address 00000089
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c012dff7>] Tainted: P
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010206
eax: 00000081 ebx: cff72b58 ecx: cee3a000 edx: 0000cad6
esi: 00001000 edi: cbabd9b4 ebp: 00000081 esp: cee3bf08
ds: 0018 es: 0018 ss: 0018
Process giftd (pid: 29738, stackpage=cee3b000)
Stack: c03155c0 c238b1c0 c44671c0 00000038 cee3a000 00000eea 00000000 00000000
00000116 cbabd900 c012e6a0 cee3bf74 c2974660 c2974640 00001000 00001000
00000000 00000000 c012e7f2 c2974640 c2974660 cee3bf74 c012e6a0 c0222e67
Call Trace: [<c012e6a0>] [<c012e7f2>] [<c012e6a0>] [<c0222e67>] [<c013d413>]
Code: 39 78 08 74 05 8b 40 10 eb f2 39 68 0c 75 f6 85 c0 89 c6 0f

>>EIP; c012dff7 <do_generic_file_read+157/4e0> <=====

>>ebx; cff72b58 <_end+fc02f6c/104a5494>
>>ecx; cee3a000 <_end+eaca414/104a5494>
>>edi; cbabd9b4 <_end+b74ddc8/104a5494>
>>esp; cee3bf08 <_end+eacc31c/104a5494>

Trace; c012e6a0 <file_read_actor+0/a0>
Trace; c012e7f2 <generic_file_read+b2/1a0>
Trace; c012e6a0 <file_read_actor+0/a0>
Trace; c0222e67 <sys_send+37/40>
Trace; c013d413 <sys_read+a3/110>
Trace; c0108fdf <system_call+33/38>

Code; c012dff7 <do_generic_file_read+157/4e0>
00000000 <_EIP>:
Code; c012dff7 <do_generic_file_read+157/4e0> <=====
0: 39 78 08 cmp %edi,0x8(%eax) <=====
Code; c012dffa <do_generic_file_read+15a/4e0>
3: 74 05 je a <_EIP+0xa>
Code; c012dffc <do_generic_file_read+15c/4e0>
5: 8b 40 10 mov 0x10(%eax),%eax
Code; c012dfff <do_generic_file_read+15f/4e0>
8: eb f2 jmp fffffffc <_EIP+0xfffffffc>
Code; c012e001 <do_generic_file_read+161/4e0>
a: 39 68 0c cmp %ebp,0xc(%eax)
Code; c012e004 <do_generic_file_read+164/4e0>
d: 75 f6 jne 5 <_EIP+0x5>
Code; c012e006 <do_generic_file_read+166/4e0>
f: 85 c0 test %eax,%eax
Code; c012e008 <do_generic_file_read+168/4e0>
11: 89 c6 mov %eax,%esi
Code; c012e00a <do_generic_file_read+16a/4e0>
13: 0f 00 00 sldtl (%eax)

Disconnect <>

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