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Re: Can't boot amd64 kernel

On Tue, Jan 06, 2004 at 03:45:12AM -0500, Anthony DeRobertis wrote:
> On Jan 5, 2004, at 12:24, Scott Ransom wrote:
> >I have a virtually identical system (except with 6GB RAM) and see the 
> >same
> >problem.  THe various kernel options haven't helped.
> I found the problem with my system: Out of the 8 DIMMs, 3 were 
> defective. Ouch.
> The three happened to get mapped above 4GB so the 32-bit Debian kernel 
> doesn't hit them.

Hmmm.  I don't think that this applies to me.  I ran an
AMD64-modified version of memtest for about 3 days straight and
got no errors.

> >I have been able to sucessfully boot earlier 32 bit kernels (prior to
> >about 2.4.20 I believe; for instance Knoppix works), but later ones and
> >the 2.6 series stop at the same place you see.
> I haven't booted a 2.6 32-bit kernel. Personally, I plan to stay away 
> from 2.6 for a while.
> >64 bit kernels (I'm now running 2.6.0) seem to boot fine, though.
> 64-bit isn't booting yet, it seems the aic79xx driver isn't happy in 
> 2.4.23 on amd64 (panic, null pointer). 2.6.0 booted, but died early in 
> rc.X (panic, illegal operation, I think)
> 2.4.23 (32-bit) from kernel.org doesn't work with the gigabit chipset 
> on the board; it doesn't get a link no matter what.
> 2.4.23-1-k7-smp from Debian works, and now since I'm down three DIMMs 
> (4, really, since they need to be paired) I only have 4GB of RAM 
> anyway...
> I plan to work on getting a 64-bit kernel to work. Just need to find a 
> fixed aic79xx driver, I think. And maybe gige.

If you are interested in trying my current 64bit kernel
(2.6.1-rc1 + x86-64 group fixes), which is monolithic and has
working gigabit and aic79xx, let me know and I can post mine

> [ BTW: To test for the bad memory, I just wrote a program that wrote 
> 1gb of pseudo-random data, read it back, and compared, one 32-bit int 
> at a time. When it hit bad memory, I got a MCE. ]

Just curious:  Why not use memtest?


Scott M. Ransom              Address:  McGill Univ. Physics Dept.
Phone:  (514) 398-6492                 3600 University St., Rm 338
email:  ransom@physics.mcgill.ca       Montreal, QC  Canada H3A 2T8 
GPG Fingerprint: 06A9 9553 78BE 16DB 407B  FFCA 9BFA B6FF FFD3 2989

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