Very Computer

Hello to ALL!

We have Dual PPro system whith RedHat 4.2/kernel 2.0.30 SMP.
It sleep for 15 seconds sometimes if somebody press one of
CAPS, SCROLL or NUM LOCK's. I tryed 2.1.54, but in this case
system freze forever.

Is this hapens on all SMP systems? Is any way to fix this,
accept to get out such keys from keyboard :-) ???

--
        Alex

Quote:>We have Dual PPro system whith RedHat 4.2/kernel 2.0.30 SMP.
>It sleep for 15 seconds sometimes if somebody press one of
>CAPS, SCROLL or NUM LOCK's.

Any help or suggestions would be greatly appreciated.

Tim.
--
Tim Goodwin | "Gateways are designed for the purpose of losing information;
Cygnus, UK  | some do better than others." -- Dave Crocker

Quote:> We have Dual PPro system whith RedHat 4.2/kernel 2.0.30 SMP.
> It sleep for 15 seconds sometimes if somebody press one of
> CAPS, SCROLL or NUM LOCK's. I tryed 2.1.54, but in this case
> system freze forever.

> Is this hapens on all SMP systems? Is any way to fix this,
> accept to get out such keys from keyboard :-) ???

    Jeff (http://www.neci.nj.nec.com/homepages/qobi)

Quote:>We have Dual PPro system whith RedHat 4.2/kernel 2.0.30 SMP.
>It sleep for 15 seconds sometimes if somebody press one of
>CAPS, SCROLL or NUM LOCK's. I tryed 2.1.54, but in this case
>system freze forever.

>Is this hapens on all SMP systems? Is any way to fix this,
>accept to get out such keys from keyboard :-) ???

--
|Gazing up to the breeze of the heavens \ on a quest, meaning, reason  |
|came to be, how it begun \ all alone in the family of the sun         |
|curiosity teasing everyone \ on our home, third stone from the sun.   |

Well, i would like to say that my computer don't more freeze!
This because i switch to 2.0.31pre31, but ... now key repeat does not work.
I'm in mess : what is better freeze on CAPS or chaos on key touch?
:-)

--
        Alex

Quote:>> We have Dual PPro system whith RedHat 4.2/kernel 2.0.30 SMP.
>> It sleep for 15 seconds sometimes if somebody press one of
>> CAPS, SCROLL or NUM LOCK's. I tryed 2.1.54, but in this case
>> system freze forever.

>I noticed this on SMP PPro systems that use the Orion chipset (such as the
>AMI Goliath motherboard) but not on systems that use the Natoma chipset (such
>as the Tyan Titan Pro ATX S-1668).

- Dan

I have a Tyan Tomcat II (430HX) with 2 P166 (classic) CPU's I have yet to
experience problems like these. My system has been running very stable since
I switched my NCR810 to asynchronous mode. At any one time there are several
people logged in and almost all the time someone is fooling around with
X on the console.

Mathijs

Quote:> I have a Tyan Tomcat II (430HX) with 2 P166 (classic) CPU's I have yet to
> experience problems like these. My system has been running very stable since
> I switched my NCR810 to asynchronous mode. At any one time there are several
> people logged in and almost all the time someone is fooling around with
> X on the console.

> Mathijs

O.K. so my system only hangs under X when reading mail messages about
pressing CAPS-LOCK under 'X'  and pressing CAPS-LOCK. :)

Anyway, there is a real problem, I have a (very) crude hack around it
which works on my system. It isn't a "real" fix for the problem which
seems to be a race condition with the jiffie counter on SMP systems,
but it'll make it go away until something better comes along.

A couple of places in the keyboard code poll I/O ports for N jiffies,
adding an extra test so they wouldn't hang forever made the problem go
away here. I can provide diff's against 2.1.57 if anyone needs them, but
it isn't hard to do manually on other kernels.

Peter

(Of course, 2.1.n is a development path, so this may not be an option
for some people.)

Tim.
--
Tim Goodwin | "Gateways are designed for the purpose of losing information;
Cygnus, UK  | some do better than others." -- Dave Crocker

You might want to take a look at Leonard Zubkopf's web site,
<http://www.dandelion.com/Linux>.  He is not only the author of the
BusLogic SCSI driver, but is involved in the SMP work on the kernel.
He has notes & patches there with reference to deadlock/race situations
in the SMP kernel.

Best
        Rickf

You might be a redneck if: your richest relative buys a new house
and you have to help take the wheels off...          Jeff Foxworthy