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SubjectRe: [2.4] Nforce2 oops and occasional hang (tried the lockups patch, no difference)
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On approximately Thu, Dec 11, 2003 at 11:16:20AM -0500, Disconnect wrote:
> 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 :(
>

Do you see hard locks with APIC/IO-APIC enabled? Do you see this oops
with APIC/IO-APIC enabled? Just curious because I can reproduce the
hard locks eventually, but never get an oops. Also, what patches are
you running and what kernel version?

> Unable to handle kernel NULL pointer dereference at virtual address 00000089
> c012dff7
> *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>]
> [<c0108fdf>]
> 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 <lkml@sigkill.net>
>
> -
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