[Help] Strange Linux server no response problem, fixed by hitting ENTER at console!

[Charles]

Dear all,

Thanks for so many responses!

To Alex:
No there is no screen saver service running at the server, and it is a text based server with no X-Window system installed.

To asterr:
The server is put at the data center and with no keyboard nor serial console connected, maybe not related to SysReq signal

I reported this to my boss last night and we agreed to replace only the cpu and motherboard to have a try.
If it is purely a hardware problem, I hope it will get fixed soon!


Best Regards,
Charles

----- Original Message ----- 
From: "Alex Dyas" <alex.dyas at psineteurope.com>
To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
Sent: Thursday, July 22, 2004 8:23 PM
Subject: Re: [Help] Strange Linux server no response problem, fixed by hitting ENTER at console!


> Charles,
> 
> I'm wondering if this is a screen saver module going mad?  This would explain
> why pressing return fixes the problem.  If the system has been set up to pick a
> random screen saver then the problem would be fairly unpredictable, ie only when
> that screen saver is chosen.
> 
> Cheers,
> 
> Alex..
> 
> 
> -= Alex Dyas, DC Ops, PSINet Europe, Geneva, +41 22 783 6208 =-
> 
> 
> Charles wrote:
> > 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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