Re: sata_nv + SMP = broken?

[Vladimir Lazarenko <vlad@lazarenko.net>]

> > > Yesterday I've tried launching various kernels on Ahtlon64 Dual-core 
> > > X2 3800+ with MSI Neo4 Platinum SLI motherboard.
> > >
> > > The results were a total catastrophica failure. As soon as I enable 
> > > SMP in the kernel, the sata driver would randomly hang after a bit of 
> > > disk activity.
> > >
> > > Whenever apic is enabled, the system won't even be able to boot up 
> > > completely, and will hang VERY soon. Whenever I disable apic, the 
> > > system is able to bootup, but when the software mirror that I use will 
> > > try to resync for 2-3-10 mins, it will throw up a message and freeze 
> > > again.
> > >
> > > Whenever I disable apic AND lapic, the system is able to bootup AND 
> > > work, however after same 5-10 minutes it start spitting messages, 
> > > which are somewhat different thou and don't hang the system completely 
> > > but render it rather unusable anyway.
> > >
> > > As soon as I disable SMP - everything works like a charm.
> > I too am running an Athlon X2 using sata_nv. I have an ASUS motherboard. 
> > But what I noticed was that the problem went away if I used 2 gigs of 
> > ram instead of 4 gigs. When you use the whole 4 gigs there is some 
> > memory mapping going on and I thought perhaps the problem was related to 
> > the sata_nv not liking the memory mapped over the 4gig barrier.
>
> That's possible.  Unfortunately I cannot verify this, since there are 2GB of
> RAM in my box.
>
> I remeber someone having a problem with sata_nv DMAing over 2GB of RAM,
> so there may be something wrong with it.

On a second thought. Why would that only occur in SMP mode? Since now 
the box is with 3G ram, no SMP and it works like a charm. If I enable 
SMP - the hell breaks loose.

Anyone from the IDE drivers guru world has any ideas? :)

Regards,
Vladimir

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