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

[Alex Dyas]

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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