Date: Fri, 21 May 2004 21:21:16 +1000 From: Tim Robbins <tjr@freebsd.org> To: current@freebsd.org Subject: ACPI breakage Message-ID: <20040521112116.GA751@cat.robbins.dropbear.id.au>
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Hi, On trying to boot a recent CURRENT kernel on one of my machines (i386 kernel, Pentium III (Katmai) 500 MHz CPU, Abit BH6 motherboard), I get a panic: ... pcib1: <PCI-PCI bridge> at device 1.0 on pci0 pci1: <ACPI PCI bus> on pcib1 pcib0: slot 1 INTA is routed to irq 12 pcib1: slot 0 INTA is routed to irq 12 Fatal trap 12: page fault while in kernel mode fault virtual address = 0x15 (Unfortunately this was transcribed by hand and does not show bootverbose output or a backtrace. I can't provide these right now.) With an identical source tree, I *don't* get a panic on another system (amd64 kernel, Athlon 64 3000+ CPU, ASUS K8V Deluxe motherboard ver. 1005) Reverting to sys/dev/acpica/acpi_ec.c revision 1.47 makes the panic disappear. In case it's useful, this is what the dmesg looks like with the old version of acpi_ec.c: ... pcib1: <PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pcib0: slot 1 INTA is routed to irq 12 pcib1: slot 0 INTA is routed to irq 12 pci1: <display, VGA> at device 0.0 (no driver attached) isab0: <PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 ... The only interesting difference I can see here is that pci1 has gone from being a "PCI bus" with rev. 1.47 to an "ACPI PCI bus" with rev. 1.49. pci0 always shows up as an "ACPI PCI bus". Suggestions? I would try to debug this a little further myself, but as the machine in question acts as my dialup gateway, it's rather inconvenient to reboot it often or take it offline. Timhome | help
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