Kernel oops

I got the following oops in my kernel 2.6.6. No modules has been added/removed ahead of the crash:

Jun 10 00:19:59 debian kernel: Oops: 0002 [#1]
Jun 10 00:19:59 debian kernel: CPU:    0
Jun 10 00:19:59 debian kernel: EIP:    0060:[d_instantiate+44/80]    Not
tainted
Jun 10 00:19:59 debian kernel: EFLAGS: 00010286   (2.6.6)
Jun 10 00:19:59 debian kernel: EIP is at d_instantiate+0x2c/0x50
Jun 10 00:19:59 debian kernel: eax: 00814834   ebx: cd814824   ecx:
d8387700   edx: cd814834
Jun 10 00:19:59 debian kernel: esi: d83876dc   edi: d7895f2b   ebp:
00000022   esp: d7895f08
Jun 10 00:19:59 debian kernel: ds: 007b   es: 007b   ss: 0068
Jun 10 00:19:59 debian kernel: Process netspeed_applet (pid: 755,
threadinfo=d7894000 task=d91fc8f0)
Jun 10 00:19:59 debian kernel: Stack: d83876dc ddf093c0 c027d19a
d83876dc cd814824 00001a7e cd814824 3837365b
Jun 10 00:19:59 debian kernel:        cd005d32 ffffff9f d7894000
c027df17 cd814800 00000000 00000001 d7895f24
Jun 10 00:19:59 debian kernel:        00000006 00001a7e 00000002
00000000 080d76c0 00000005 d7894000 c027e0bd
Jun 10 00:19:59 debian kernel: Call Trace:
Jun 10 00:19:59 debian kernel:  [sock_map_fd+170/320]
sock_map_fd+0xaa/0x140
Jun 10 00:19:59 debian kernel:  [__sock_create+167/400]
__sock_create+0xa7/0x190
Jun 10 00:19:59 debian kernel:  [sys_socket+61/96] sys_socket+0x3d/0x60
Jun 10 00:19:59 debian kernel:  [sys_socketcall+104/608]
sys_socketcall+0x68/0x260
Jun 10 00:19:59 debian kernel:  [syscall_call+7/11] syscall_call+0x7/0xb

ksymoops 2.4.9 on i686 2.6.6. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.6/ (default)
-m /boot/System.map-2.6.6 (default)

Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.

Error (regular_file): read_ksyms stat /proc/ksyms failed
ksymoops: No such file or directory
No modules in ksyms, skipping objects
No ksyms, skipping lsmod

Jun 10 00:19:59 debian kernel: Oops: 0002 [#1]
Jun 10 00:19:59 debian kernel: CPU:    0
Jun 10 00:19:59 debian kernel: EIP:    0060:[d_instantiate+44/80]    Not
tainted
Jun 10 00:19:59 debian kernel: EFLAGS: 00010286   (2.6.6)
Jun 10 00:19:59 debian kernel: eax: 00814834   ebx: cd814824   ecx:
d8387700   edx: cd814834
Jun 10 00:19:59 debian kernel: esi: d83876dc   edi: d7895f2b   ebp:
00000022   esp: d7895f08
Jun 10 00:19:59 debian kernel: ds: 007b   es: 007b   ss: 0068
Jun 10 00:19:59 debian kernel: Stack: d83876dc ddf093c0 c027d19a
d83876dc cd814824 00001a7e cd814824 3837365b
Jun 10 00:19:59 debian kernel:        cd005d32 ffffff9f d7894000
c027df17 cd814800 00000000 00000001 d7895f24
Jun 10 00:19:59 debian kernel:        00000006 00001a7e 00000002
00000000 080d76c0 00000005 d7894000 c027e0bd
Jun 10 00:19:59 debian kernel: Call Trace:

Warning (Oops_read): Code line not seen, dumping what data is available