system randomly freezes

Kris Kennaway kris at obsecurity.org
Sat Nov 11 19:17:45 UTC 2006


On Sat, Nov 11, 2006 at 08:13:22PM +0100, Gergely CZUCZY wrote:
> On Sat, Nov 11, 2006 at 02:02:46PM -0500, Kris Kennaway wrote:
> > On Sat, Nov 11, 2006 at 07:57:47PM +0100, Gergely CZUCZY wrote:
> > 
> > > > OK, seems weird to go through all the disruption of changing to a new
> > > > OS instead of a few minutes work at a console to give us what we need
> > > > to resolve the matter -- but whatever works for you.
> > > already done some stuff like these movings... i'm familiars with them.
> > > it's not about a few minutes work. it's about the few hours' downtime :)
> > 
> > It's a few minutes to perform the additional work at the serial
> > console when your system hangs, which is *required* for a developer to
> > help with your problem.  If you're not willing to do this, there's not
> > much more we can do for you.
> i will see what can i do. a serial console may be accessable, but i'm not sure.
> i will have to visit the server hotel and talk with the techies there. we
> have two boxes there, and it may be somehow possible to connect their
> serial ports. the problem is, they are far away in the room from each other.
> the hotel only gives system console(VGA+ps2 keyboard) access if i ask. but
> this bloody box sometimes ain't even responses to that anyways, the LCD
> remains blank.

You can't even break to the debugger?

> i'd like to solve this, but the technical opportunities are limited here.
> we cannot have downtime, and if we have it have to be minimized. as you see
> clients won't accept a reasons like "sorry, we were debugging this OS we
> run at the server".
> 
> the question will be that, when i have a serial link, and shit happens(tm),
> should i inspect it myself, or should i scream somewhere for a more decent
> person (maybe a developer) to check it?

Did you read the developers handbook chapter I pointed you to, yet?

> > After 6.2 is release will of course be too late for you, again.  If
> > the problem is not fixed by magic then you'll be in the same position
> > you are now.
> why too late? it usually go for a month with a reboot. and it should be
> released in a month. as i see, it fits into the time :)

Because (if it is a FreeBSD bug) then you'll have more work to do to
apply a patch to your system, and also it won't help anyone else who
might also be seeing the problem, until 6.3-RELEASE in ~6 months.

Kris
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