Date: Mon, 11 Aug 2003 14:38:07 -0700 (PDT) From: Doug White <dwhite@gumbysoft.com> To: Peter Schuller <peter.schuller@infidyne.com> Cc: freebsd-mobile@freebsd.org Subject: Re: Extra battery causes hangs (T40p, FreeBSD 5.1/CURRENT) Message-ID: <20030811143709.D75891@carver.gumbysoft.com> In-Reply-To: <20030811192355.GB23117@infidyne.com> References: <20030811013921.GB24952@infidyne.com> <20030811004931.R72106@carver.gumbysoft.com> <20030811192355.GB23117@infidyne.com>
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On Mon, 11 Aug 2003, Peter Schuller wrote: > > Are you swapping the CDROM and battery while FreeBSD is booted? FreeBSD > > does not handle this at all and will get really upset if you attempt it. > > Nope. I did try it once to see if it would affect the hang problem, but > otherwise no. Well whatever happens its causing some serious memory corruption or something -- the items you identified all generate interrupts, so the kernel's trap handler is getting wrecked. > > You'd have to examine the DSDT table (and perhaps other namespace tables, > > and dmesg) to see exactly how the code path changes. Typically, though, > > the ACPI device tree already has space reserved for two batteries even if > > one is not present. > > Ok. Do you know of any documentation on how to do this? (I'm not a kernel > hacker of any kind...) acpidump is a good place to start, but you'll also need the ACPI Specification to make heads or tails of it. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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