Date: Wed, 31 Oct 2001 22:19:32 -0800 (PST) From: Peter Wemm <peter@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/boot/i386/boot2 boot1.s Message-ID: <200111010619.fA16JWm83659@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
peter 2001/10/31 22:19:32 PST
Modified files:
sys/boot/i386/boot2 boot1.s
Log:
Fix the ILLEGAL fdisk table that is there for supporting "dangerously
dedicated" mode. This was specifying that there are 256 (illegal!)
heads on the disk. If bioses store that in a byte, and it gets truncated
to 0, then that almost certainly causes the infamous divide-by-zero
nightmare.
This is also most likely the reason why the Thinkpad T20/A20 series
were locking up when FreeBSD was installed. This is also the most likely
reason why a boot1 being present causes an IA64 box to lock up at boot.
(removing the "part4" stuff from boot1.s fixes the IA64 boxes and would
most likely have fixed the T20/A20 and some TP600E series thinkpads)
Revision Changes Path
1.17 +2 -2 src/sys/boot/i386/boot2/boot1.s
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200111010619.fA16JWm83659>