[Users] Need help with hanging servers

Jure Pečar pegasus at nerv.eu.org
Wed Jul 7 08:16:13 EDT 2010


On Tue, 06 Jul 2010 10:33:36 -0500
Brian Moon <brian at moonspot.net> wrote:

> And it is  a weird hang. They still respond to ping. And TCP connnections 
> answer (connect) but don't respond. 

Nothing weird about that - it's a typical sign of IO deadlock. This can happen anywhere from the disk interface, scsi stack or even VFS layer.
I've seen hangs like these often with older adaptec scsi gear.

If you want to debug, alt+sysrq+t can be useful. Otherwise I'd suggest you to either upgrade your kernel or change io hardware with different brand.


-- 

Jure Pečar
http://jure.pecar.org
http://f5j.eu



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