Re: [Help] Strange Linux server no response problem, fixed byhitting ENTER at console!

["Charles" <charles@aib.net>]

Dear All,

Thank you for your suggestions.

No, apmd is not running at the server, but if APM is turned on at the BIOS will it have any effects? (I have to goto check it)
Actually the problem does not happens everyday, so I'm not sure if it is related to power management issue.

CPU usage is quite normal, at least always has IDLE cpu time. As of now in top:
  3:56pm  up 9 days,  2:35,  1 user,  load average: 0.91, 1.09, 1.38
120 processes: 119 sleeping, 1 running, 0 zombie, 0 stopped
CPU0 states: 19.0% user, 18.0% system,  0.0% nice, 62.0% idle
CPU1 states: 11.0% user,  8.0% system,  0.0% nice, 80.0% idle
Mem:   642740K av,  514852K used,  127888K free,       0K shrd,   53480K buff
Swap:  530040K av,   91420K used,  438620K free                  282576K cached

Actually the server has strange "no response" problem for over half year for a few times already, I just discovered I can "fix" it with "ENTER" key at the console login screen recently. If it looks like interrupt problem, I may try to find hardware to replace it and give it a try.

btw, will a IDE Software RAID-1 create this problem? (both disks running UltraDMA mode already)
Motherboard is ASUS P2B-D, Dual P3-700Mhz Slot-1


Best Regards,
Charles

----- Original Message ----- 
From: "George Iosif" <giosif@ase.ro>
To: <charles@aib.net>
Cc: <linux-admin@vger.kernel.org>
Sent: Wednesday, July 21, 2004 9:41 PM
Subject: Re: [Help] Strange Linux server no response problem, fixed byhitting ENTER at console!


> Hi Charles,
> 
> Try stoping the APMD service and see if it solves your problem.
> 
> 
> George Iosif
> 
> >>> "Charles" <charles@aib.net> 07/21/04 11:51 AM >>>
> Dear all,
> 
> Recently one of our servers randomly stop responding, but it does not
> hang.
> 
> When the problem happens, all the network services stop responding, but
> the server is still running. Then many processes are queued up and cause
> the 
> avg no. of process running sky to over 100 in 10min! If I was connecting
> an 
> ssh to the server, it just stop response but the connection is still
> there.
> ping also has response.
> 
> The most strange thing is, when I press an ENTER key at the console, the
> problem solved instantly and everything back to normal. Even my ssh
> connection
> will have response again.
> 
> Our server's config:
> 
> Hardware: Dual P3-700Mhz, 640M RAM, 2 x 10G IDE HDD running Software
> RAID-1
> OS: RedHat Linux 8.0
> kernel: kernel-2.4.18-14smp
> 
> Special config:
> - freeswan-1.99_x509_0.9.15_2.4.18_14 installed
> 
> Do you know what happens and kindly give me any suggestions? Thanks!
> 
> 
> Best Regards,
> Charles
> 
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