Re: 5.0.1 lockups on disk access

[Michael <macallan%netbsd.org@localhost>]

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Hello,

On Sep 5, 2009, at 4:38 AM, Stephen Borrill wrote:

> On Fri, 4 Sep 2009, Michael wrote:
> > On Sep 4, 2009, at 12:06 PM, Stephen Borrill wrote:
> >
> > > I'm trying to install 5.0.1 on a dual G4. When I do a disk- 
> > > intensive operation such as newfs or dd /dev/zero to it, the  
> > > machine locks solid.
> > > I've tried this with a couple of different machines, a couple of  
> > > different hard drives and with the drives as slave and master.
> >
> > Reminds me - did you try different cables? Reseat all connectors?  
> > Apple IDE chips can be quite touchy.
>
> Yes, every simgle component was swapped out. I tried it on two  
> completely different computers (which were also tested working with  
> Mac OS 10.4).

Ok, had to ask.

> Re: DIAGNOSTIC kernel
>
> I was just using the 5.0.1 iso image as that was the easiest to  
> start the install before upgrading to 5.0_STABLE. I guess I could  
> try setting up a net boot environment.
>
> A few weeks ago I had no problems installing 5.0 on a single 733MHz  
> G4, so I'll also try 5.0 vs 5.0.1 and doing the install on a single  
> 733 G4 vs a dual 800 G4.

It works fine on my dual 500MHz G4, although I get occasional  
DIAGNOSTIC panics during disk and network IO under high CPU load. Not  
trivial to reproduce though, build.sh usually triggers it but it can  
take anything between one and 24 hours. Looks a bit similar to kern/ 
41923 - I have never seen this problem on any of my single CPU macppc  
machines.

have fun
Michael

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