Date: Wed, 02 Jan 2002 22:16:16 -0700 (MST) From: "M. Warner Losh" <imp@village.org> To: freebsd-current@FreeBSD.ORG, olli@secnetix.de Subject: Re: SMP system hangs on current, not stable Message-ID: <20020102.221616.63342828.imp@village.org> In-Reply-To: <200201021845.g02IjiL68980@lurza.secnetix.de> References: <200201021831.g02IV3C64392@ns.altadena.net> <200201021845.g02IjiL68980@lurza.secnetix.de>
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In message: <200201021845.g02IjiL68980@lurza.secnetix.de>
Oliver Fromme <olli@secnetix.de> writes:
: This can also be done
: with PCI slots, if that board doesn't have an ISA slot
: anymore, but I don't know which pins (it's _not_ the first
: two pins), and it's a lot more difficult because the PCI
: pins are much smaller.
I don't think it is that simple. The PCI bus has timing issues that
mean that shorting just two pins likely isn't going to work. MS has a
design for generating SERR when you press a button, but it does a lot
of stuff to make sure that the signal is asserted at the right time.
I know that my simple experiments with doing this have ended in
failure...
Warner
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