Your kernel had an Oops!

hi all,
anyone can explain me the following message I recive from a cPanel server?
Never had problems with that server... and all seems to be fine...
But what's this?
Your kernel had an Oops!

Thanks a lot

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IMPORTANT: Do not ignore this email.
Your kernel had an Oops!

This is the result of bad hardware or a kernel bug.
Your system may continue to function as normal, however
there is a good chance bad things are happening right now.
Bad things include: files disappearing, daemons crashing,
complete server crashs, disk corruption and many others.

You might want to check your RAM with memtest86 as this is
usually the cause of the problem.
http://www.memtest86.com/

The Oops is below:
Unable to handle kernel NULL pointer dereference at virtual address 0000007c
printing eip:
c011f18f
*pde = 00000000
Oops: 0000
iptable_filter ip_tables autofs 8139too mii ehci-hcd usb-uhci usbcore ext3 jbd
CPU: 0
EIP: 0010:[<c011f18f>] Not tainted
EFLAGS: 00010202

EIP is at access_process_vm [kernel] 0x1f (2.4.18-27.7.x)
eax: 00000000 ebx: 0000001c ecx: bffffebf edx: f3c1e000
esi: f137ce80 edi: d58df000 ebp: d58df01c esp: ce7fdefc
ds: 0018 es: 0018 ss: 0018
Process top (pid: 6543, stackpage=ce7fd000)
Stack: d58df01c 00000000 c1c9a268 efc48e00 00000202 c013982b d16f6200 00000202
0000001c f137ce80 d58df000 f3c1e000 c0156b67 f3c1e000 bffffebf d58df01c
00000121 00000000 00000121 ebe9cc80 000007ff f3c1e000 d58df000 c0156e1c
Call Trace: [<c013982b>] dentry_open [kernel] 0x17b (0xce7fdf10))
[<c0156b67>] proc_pid_cmdline [kernel] 0xa7 (0xce7fdf2c))
[<c0156e1c>] proc_info_read [kernel] 0x4c (0xce7fdf58))
[<c013ac7f>] fput [kernel] 0xaf (0xce7fdf68))
[<c013a006>] sys_read [kernel] 0x96 (0xce7fdf7c))
[<c0139b26>] sys_open [kernel] 0x56 (0xce7fdfac))
[<c010896b>] system_call [kernel] 0x33 (0xce7fdfc0))


Code: f6 40 7c 01 74 07 3d a0 2b 2d c0 75 08 c7 44 24 04 00 00 00
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