Server Crash
I have been having problems recently with several servers crashing. At
first I thought it might be hardware problems but I now doubt it since it
has happened to several computers that previously showed no problems. I
doubt that it's power either since the computers that crashed are on
different UPSs.
If anyone can shed some light on these problems I'd appreciate it. I've
never had Linux crash on me before and it seems to be happening with some
regularity now. Two of the crashing systems are running Debian 2.1 with
all security updates.
This was on the screen of one computer when I plugged in a monitor.
Interestingly enough the computer was still running but ssh wouldn't accept
connections at all. I even restarted ssh and it still would not accept
connections.
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0011d2fc>]
EFLAGS: 00010202
eax: 00000010 ebx: 21887898 ecx: 01887850 edx: 01887000
esi: 0157f718 edi: 21887898 ebp: 01bc7f38 esp: 01bc7eb0
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process sshd (pid: 129, process nr: 19, stackpage=01bc7000)
Stack: 0157f718 00000014 01bc8000 00118436 0157f718 0000002b 00000014
01bc8000
01bc7f38 0010b130 0000000b 00219edf 00000000 e1887898 00000000
01957414
00000000 02800000 02000000 00210018 00112dc6 0021b014 01bc7f38
00000000
Call Trace: [<00118436>] [<0010b130>] [<02800000>] [<02000000>]
[<00210018>] [<00112dc6>] [<00112afc>]
[<0010ad78>] [<00114dc1>] [<0013afd2>] [<0010a349>] [<0010ac15>]
Code: 8b 7b 1c 8b 43 28 85 c0 74 27 8b 48 08 85 c9 74 10 8b 53 04
-------------
The logging stopped (probably at the time of the above) so nothing useful
(from what I can tell) was in the logs. This is the only thing I could
find in the logs:
Oct 12 00:20:49 spare kernel: Unable to handle kernel paging request at
virtual address e1887898
Oct 12 00:20:49 spare kernel: current->tss.cr3 = 01bc6000, %cr3 = 01bc6000
Oct 12 00:20:49 spare kernel: *pde = 00000000
Oct 12 00:20:49 spare kernel: Oops: 0000
Oct 12 00:20:49 spare kernel: CPU: 0
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