From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Alfaro Solana Subject: Re: 2.6.0-pre4 hangs if acpi enabled Date: Mon, 25 Aug 2003 14:18:33 +0200 Sender: linux-kernel-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Message-ID: <1061813912.710.18.camel@teapot.felipe-alfaro.com> References: <20030825113313.GA10691@lps.ens.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20030825113313.GA10691-l5PIGlIYzrxGWvitb5QawA@public.gmane.org> To: =?ISO-8859-1?Q?=C9ric?= Brunet Cc: Linux Kernel mailing list , acpi-devel List-Id: linux-acpi@vger.kernel.org On Mon, 2003-08-25 at 13:33, =C9ric Brunet wrote: > Hi, >=20 > When booting 2.6.0-pre4 on my intel P4 with a shuttle motherboard, th= e > computer hangs after printing >=20 > hda: max request size: 128KiB > hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=3D65535/16/6= 3, UDMA(100) > hda: hda1 hda2 hda4 < hda5 hda6 hda7 > > mice: PS/2 mouse device common for all mice >=20 > No scroll from the keyboard, no sys-rq, Caps-lock doesn't lit the led= on > the keyboard. The computer is completely frozen. Well, if you are using ACPI, then this is a know behaviour with -test4 releases. It's ACPI related. Please, take a look at the following bug report: http://bugzilla.kernel.org/show_bug.cgi?id=3D1123 During boot, the kernel checks for i8042 AUX/MUX ports, tries registering IRQ #12 and then hangs. I fixed the problem on my i845DE motherboard by flashing a new BIOS with APIC and IOAPIC support. Then, = I recompiled 2.6.0-test4 with APIC and IOAPIC support and the hangs went away. If you can't use/compile APIC and IOAPIC for your motherboard, try booting the kernel with "pci=3Dnoacpi" as a workaround. This will preve= nt from using ACPI IRQ routing and use standard PCI IRQ routing. Also, if you have the time, please, attach your "dmidecode" and "acpidmp" to the bug report at the above URL. Thanks!