oops with 2.6.0-test7 on dell poweredge 650

Hi all,

I found the following oops in dmesg. It happened during the daily cronjob logrotate. The machine is a dell poweredge 650. I can provide more info if wanted but tried to keep this mail a bit small.
The machine seems oke btw.

Oops in dmesg and decoded oops (below):

Unable to handle kernel NULL pointer dereference at virtual address 0000003c
 printing eip:
c0174f15
*pde = 00000000
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[<c0174f15>]    Not tainted
EFLAGS: 00010246

EIP is at proc_pid_stat+0x7f/0x492
eax: 00000000 ebx: dee4f380 ecx: 00000000 edx: c02c988c
esi: e79ade00 edi: 00000000 ebp: dee4f380 esp: dfcc1e40
ds: 007b es: 007b ss: 0068
Process killall (pid: 15937, threadinfo=dfcc0000 task=f516a780)

Stack: c02c8c60 dee4f380 0000000d e79ade10 dee4f380 0000000d c0172dc0 dee4f380
       e79ade10 3f8de432 c015de52 e1a95180 e79ade10 c02c8c60 c02c8c60 c0173451
       e1a95180 e79ade10 0000000d 00000004 dee4f380 ffffffea fffffff4 e431e0f8
Call Trace:
 [<c0172dc0>] proc_pid_make_inode+0xc3/0xe0
 [<c015de52>] d_instantiate+0x4e/0x5a
 [<c0173451>] proc_pident_lookup+0xf2/0x258
 [<c0154c0f>] real_lookup+0xc8/0xea
 [<c01333af>] buffered_rmqueue+0xb3/0x13f
 [<c01334e1>] __alloc_pages+0xa6/0x314
 [<c0172422>] proc_info_read+0x54/0x138
 [<c0148d4d>] vfs_read+0xd0/0x135
 [<c0148fe0>] sys_read+0x42/0x63
 [<c0108d13>] syscall_call+0x7/0xb

Code: 8b 48 3c 85 c9 74 3e 8b 81 98 00 00 00 89 84 24 d0 00 00 00

==> Decoded oops:

ksymoops 2.4.9 on i686 2.6.0-test7. Options used

     -v /boot/2.6.0-test7 (specified)
     -K (specified)
     -L (specified)
     -o /lib/modules/2.6.0-test7/ (default)
     -m /boot/System.map-2.6.0-test7 (specified)

Error (pclose_local): read_nm_symbols pclose failed 0x100
Warning (read_vmlinux): no kernel symbols in vmlinux, is /boot/2.6.0-test7 a valid vmlinux file? No modules in ksyms, skipping objects

Unable to handle kernel NULL pointer dereference at virtual address 0000003c
c0174f15
*pde = 00000000
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[<c0174f15>]    Not tainted

Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000 ebx: dee4f380 ecx: 00000000 edx: c02c988c
esi: e79ade00 edi: 00000000 ebp: dee4f380 esp: dfcc1e40
ds: 007b es: 007b ss: 0068

Stack: c02c8c60 dee4f380 0000000d e79ade10 dee4f380 0000000d c0172dc0 dee4f380 
       e79ade10 3f8de432 c015de52 e1a95180 e79ade10 c02c8c60 c02c8c60 c0173451 
       e1a95180 e79ade10 0000000d 00000004 dee4f380 ffffffea fffffff4 e431e0f8 
Call Trace:
 [<c0172dc0>] proc_pid_make_inode+0xc3/0xe0
 [<c015de52>] d_instantiate+0x4e/0x5a
 [<c0173451>] proc_pident_lookup+0xf2/0x258
 [<c0154c0f>] real_lookup+0xc8/0xea
 [<c01333af>] buffered_rmqueue+0xb3/0x13f
 [<c01334e1>] __alloc_pages+0xa6/0x314
 [<c0172422>] proc_info_read+0x54/0x138
 [<c0148d4d>] vfs_read+0xd0/0x135
 [<c0148fe0>] sys_read+0x42/0x63
 [<c0108d13>] syscall_call+0x7/0xb
Code: 8b 48 3c 85 c9 74 3e 8b 81 98 00 00 00 89 84 24 d0 00 00 00 

Trace; c0172dc0 <proc_pid_make_inode+c3/e0>
Trace; c015de52 <d_instantiate+4e/5a>
Trace; c0173451 <proc_pident_lookup+f2/258>
Trace; c0154c0f <real_lookup+c8/ea>
Trace; c01333af <buffered_rmqueue+b3/13f>
Trace; c01334e1 <__alloc_pages+a6/314>
Trace; c0172422 <proc_info_read+54/138>
Trace; c0148d4d <vfs_read+d0/135>
Trace; c0148fe0 <sys_read+42/63>
Trace; c0108d13 <syscall_call+7/b>

Code; c0174f15 <proc_pid_stat+7f/492>
00000000 <_EIP>:
Code; c0174f15 <proc_pid_stat+7f/492> <=====
0: 8b 48 3c mov 0x3c(%eax),%ecx <=====
Code; c0174f18 <proc_pid_stat+82/492>
3: 85 c9 test %ecx,%ecx
Code; c0174f1a <proc_pid_stat+84/492>
5: 74 3e je 45 <_EIP+0x45>
Code; c0174f1c <proc_pid_stat+86/492>
7: 8b 81 98 00 00 00 mov 0x98(%ecx),%eax
Code; c0174f22 <proc_pid_stat+8c/492>
d: 89 84 24 d0 00 00 00 mov %eax,0xd0(%esp,1)

1 warning and 1 error issued. Results may not be reliable.