config tool + tree enumeration
Stefan Reinauer
stepan at suse.de
Mon Sep 29 04:54:01 CEST 2003
* Eric W. Biederman <ebiederman at lnxi.com> [030929 00:38]:
> And until I have a reason I don't see the point, in making
> a change.
Hm. You are right. With some more tests I found out that this
solution only fixes the problem occasionally. It seems that
the chance that it works is higher with the number of tries.
Really weird.
> Mostly I suspect this is a matter of keeping the irq tables
> in sync, or something similar where hard codes don't match the dynamic
> assignments. And if that is the case we need to dig and do a good fix
> instead of papering over the problem.
If LinuxBIOS hangs during CPU/Northbridge enumeration, can this
really be a matter of irq tables? I thought that they are touched
quite a while later in the setup process.
I suspect it might be connected to the highest bus number set in
the default resource map, but I did not try more in this direction
yet.
Additionally I have Linux moaning that the irq table contains entries
for a bus that does not exist. It's bus 1, that LinuxBIOS and OpenBIOS
find really well, only Linux refuses to see it.
Stefan
--
Architecture Team
SuSE Linux AG
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