Date: Mon, 14 Jan 2002 22:50:01 -0800 (PST) From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: freebsd-bugs@FreeBSD.org Subject: RE: i386/33574: kernel hangs on page fault during boot process (kernel trap 12) on Intel based laptop computer Message-ID: <200201150650.g0F6o1D73574@freefall.freebsd.org>
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The following reply was made to PR i386/33574; it has been noted by GNATS. From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Daniel Jahre" <daniel.jahre@informatik.tu-chemnitz.de>, <freebsd-gnats-submit@FreeBSD.org> Cc: Subject: RE: i386/33574: kernel hangs on page fault during boot process (kernel trap 12) on Intel based laptop computer Date: Mon, 14 Jan 2002 22:44:17 -0800 Daniel, In summary we have 2 bugs here: First is the probe of the Intel Intel 82371AB combination Power management controller/usb controller and PCI to ISA Bridge chip when APM is enabled in the laptop BIOS. This is showing up both in FreeBSD 4.3 and 4.4, in 4.3 it just pauses, in 4.4 it appears to go off into never-never land. It is interesting that it is related to the BIOS upgrade to the laptop. Question for you here - if you leave it enabled under FreeBSD 4.3, does it load apm0 and can you do any power management functions? Second is the panic that shows up in FreeBSD 4.4 that was not present in FreeBSD 4.3, when the pcic driver is loaded and access the Texas Instruments TI PCI-1225 Cardbus pcmcia controller. This second bug is undoubtedly related to the new PCI interrupt path routing that has already been discussed. As the recommend workaround of putting the hw.pcic.intr_path="1" in during the boot phase does not work (and keep in mind that when testing with a boot floppy that you must spacebar out of the boot and hand-type it in since the floppy cannot read any files on /boot/loader.rc at that time) there is no other workaround for it. Please attempt to boot with the FreeBSD 4.5 Release Candidate floppy, ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/4.5-RC1/floppies/ and see if the bug is still present. Ted Mittelstaedt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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