Re: 2.6.17-mm1

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On 16x NUMA-Q, got a panic running dbench across different fs's.
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 
 printing eip:
c0154030
*pde = 2589f001
*pte = 00000000
Oops: 0000 [#1]
8K_STACKS SMP
last sysfs file: /devices/pci0000:00/0000:00:0a.0/resource
Modules linked in:
CPU:    1
EIP:    0060:[<c0154030>]    Not tainted VLI
EFLAGS: 00010006   (2.6.17-mm1-autokern1 #1)
EIP is at s_show+0xe5/0x28e
eax: c038efe0   ebx: e744ef60   ecx: 00000000   edx: 00000000
esi: c038efe0   edi: 00000000   ebp: e744b2c0   esp: e67aff14
ds: 007b   es: 007b   ss: 0068
Process cp (pid: 7295, ti=e67ae000 task=e1521570 task.ti=e67ae000)
Stack: 00000000 00000000 00000000 00000072 00000c66 e64a78c0 e744b2c0 00000000 00001000 c01724e5 e64a78c0 e744b2c0 0000087e 00000000 0000005c 00000000 0000005b 00000000 e6754720 bfc8afa0 e67affa4 00001000 c0156e80 e6754720 
Call Trace:
 [<c01724e5>] seq_read+0x195/0x262
 [<c0156e80>] vfs_read+0x88/0x11e
 [<c0157160>] sys_read+0x3b/0x63
 [<c036d07f>] syscall_call+0x7/0xb
Code: 10 3b 8d d4 00 00 00 75 0a 85 f6 b8 a0 ef 38 c0 0f 44 f0 85 c9 75 0a 85 f6 b8 e0 ef 38 c0 0f 44 f0 01 4c 24 10 ff 44 24 0c 8b 12 <8b> 02 0f 18 00 90 39 da 75 c9 8b 53 10 8b 02 0f 18 00 90 8d 43 
EIP: [<c0154030>] s_show+0xe5/0x28e SS:ESP 0068:e67aff14

Got a very similar panic on a flat SMP box too:

BUG: unable to handle kernel paging request at virtual address 00100100
 printing eip:
c0154030
*pde = 2f2fa001
*pte = 00000000
Oops: 0000 [#1]
8K_STACKS SMP
last sysfs file: /devices/pci0000:00/0000:00:0a.0/resource
Modules linked in:
CPU:    1
EIP:    0060:[<c0154030>]    Not tainted VLI
EFLAGS: 00010006   (2.6.17-mm1-autokern1 #1)
EIP is at s_show+0xe5/0x28e
eax: c038efe0   ebx: dffead60   ecx: 00000000   edx: 00100100
esi: c038efe0   edi: 00000000   ebp: dffe7660   esp: f69a7f14
ds: 007b   es: 007b   ss: 0068
Process cp (pid: 7190, ti=f69a6000 task=f64dc570 task.ti=f69a6000)
Stack: 00000000 00000000 00000000 0000003f 00000328 f650a620 dffe7660 00000000 00001000 c01724e5 f650a620 dffe7660 00000909 00000000 0000005d 00000000 0000005c 00000000 ed4d3200 bff47a70 f69a7fa4 00001000 c0156e80 ed4d3200 
Call Trace:
 [<c01724e5>] seq_read+0x195/0x262
 [<c0156e80>] vfs_read+0x88/0x11e
 [<c0157160>] sys_read+0x3b/0x63
 [<c036d07f>] syscall_call+0x7/0xb
Code: 10 3b 8d d4 00 00 00 75 0a 85 f6 b8 a0 ef 38 c0 0f 44 f0 85 c9 75 0a 85 f6 b8 e0 ef 38 c0 0f 44 f0 01 4c 24 10 ff 44 24 0c 8b 12 <8b> 02 8d 74 26 00 39 da 75 c9 8b 53 10 8b 02 8d 74 26 00 8d 43 
EIP: [<c0154030>] s_show+0xe5/0x28e SS:ESP 0068:f69a7f14
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