Date: Sun, 26 Nov 2006 00:10:30 +0100 (MET) From: Michiel Boland <michiel@boland.org> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-amd64@freebsd.org Subject: Re: BTX halted trying to boot X4100 from disk Message-ID: <Pine.GSO.4.64.0611260002500.13197@brakkenstein.nijmegen.internl.net> In-Reply-To: <200611131550.50648.jhb@freebsd.org> References: <Pine.GSO.4.64.0611091928420.3164@brakkenstein.nijmegen.internl.net> <Pine.GSO.4.62.0611131330110.27952@harper.uchicago.edu> <Pine.GSO.4.64.0611132108430.7719@brakkenstein.nijmegen.internl.net> <200611131550.50648.jhb@freebsd.org>
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On Mon, 13 Nov 2006, John Baldwin wrote: > On Monday 13 November 2006 15:12, Michiel Boland wrote: >>> Yeah, the X4100 has an mpt(4) controller. Mine is running the original > BIOS >>> release (6464), and runs FreeBSD fine. You can try fiddling with the BIOS >>> revision by downloading replacements from Sun's website. >> >> As far as I can see there are no other BIOSes on the Sun website other >> than what the box is already running (ILOM 1.0.7 - I understand ILOM and >> BIOS are linked for 4100s) >> >> I am a bit puzzled why solaris and fedora do not have these problems on >> this hardware. Oh well... > > The real mode breakpoint handler may just ignore breakpoints, or the BIOS > takes a different codepath when it runs in vm86 mode. The code path is the same. The bios calls INT3 if someone tries to load a block with LBA < 16, or LBA 64 or 65. (I think - my asm skills are a bit rusty.) Is there not a way for BTX to ignore these INT3 interrupts? Obviously they are ignored in real mode too. Cheers Michiel
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