From: Martin Josefsson (gandalf_at_wlug.westbo.se)
Date: Mon 17 Nov 2003 - 17:45:24 GMT
On Mon, 2003-11-17 at 12:23, Matt Ayres wrote:
> I have 2 servers who keep crashing, sometimes every few hours... I am
> still working on a console solution so I don't know the exact place
> where the problem is.
>
> The servers are in a "half hung" state, they respond to PING and will
> open TCP connections, but they won't send any data back.
>
> Is this how yours responds or is it a hard lock?
>
> I've tried with 2.4.22-c17e, 2.4.23pre8-c17h and 2.4.22-vs1.0.0 all with
> the same results.
I've seen this one on a few diffrent systems, even servers at kernel.org
has seen this exact problem but noone has been able to reproduce it at
will or trace it, the machines seem to "half-hang" without printing
anything on the console. (this is without the vserver patch)
Do you have a simple testcase that manages to reproduce it? That would
be wonderful.
sysrq-t (I think it's t that's interesting)
and
ctrl - scroll lock
and
altgr - scroll lock
That data together with a kernel compiled with -g (debugging) would be
wonderful when it's "half-hung".
-- /Martin