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Re: [Xen-ia64-devel] Xen is now runnnig at Bull

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] Xen is now runnnig at Bull
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Wed, 7 Sep 2005 15:04:08 +0200
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Le Mercredi 07 Septembre 2005 10:32, Xu, Anthony a écrit :
> >     *cmdline_p = __va(ia64_boot_param->command_line);
> >is generating an alt dtlb miss, which is certainly not expected, right ?
> >I am now trying to understand why!
> The VTI domain0 can boot on my local machine based on ver. 6456. I also
> changed double mapping to single mapping on vti domain. I'll merge this
> patch into latest version, and send out the patch ASAP. Currently VTI
> domain0 can boot, VTI domainN can't.
Ok, however on my machine XEN crashed very very early.  I can't remember which 
changeset I am using, however I got it from this list and was marked as OK.

What is the hg command to know the changeset ?  I used 'hg revert xxx' and 'hg 
log' still displays the 'hg pull' changeset.

Anyway, I have found why xen crashes.
elilo calls xen with r28 (bootparam) = 0x61_7ef90010 !  This is clearly not in 
the xen 64M region.  I am now trying to reboot the machine with less memory.

What is the correct way to fix this bug ?
1) Fix elilo to put bootparam near the kernel ? (maybe elilo has already been 
2) Recopy bootparam and command line in head.S while operating in physical 
mode ?
2bis) Recopy bootparams in early_setup_arch ?
3) Increase region 7 tr size (64M => 256M) ?  Hugh, this still doesn't work.


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