J. Mayer a écrit : > On Fri, 2007-10-19 at 17:19 +0200, Aurelien Jarno wrote: >> On Thu, Oct 18, 2007 at 07:12:57PM -0500, Rob Landley wrote: >>> The easy way to reproduce this is go to "http://landley.net/hg/firmware";, >>> download tip, and "./build.sh powerpc". When it finishes building >>> everything, cd build and "./run-powerpc.sh". >>> >>> What I did is build a new ppc_rom.bin (attached, source code is at >>> http://landley.net/hg/firmware/raw-diff/92f89c9c9495/sources/toys/make-ppc_rom.tar.bz2 >>> ) >>> which was written by Milton Miller. I use that firmware as the boot rom >>> (point -L at the directory it's in) instead of Open Hackware, which still >>> doesn't work for me. >>> >>> Then I build a 2.6.23 kernel with this patch: >>> http://landley.net/hg/firmware/raw-diff/fdb6ddd4c3b7/sources/patches/linux-ppcqemu.patch >>> which adds a "qemu" target. >>> >>> I then boot with the following command line (modulo wordwrap damage): >>> >>> qemu-system-ppc -M prep -nographic -hda image-powerpc.ext2 -kernel >>> zImage-powerpc -append 'rw init=/tools/bin/sh panic=1 PATH=/tools/bin >>> root=/dev/hda console=ttyS0' -L ../sources/toys >>> >>> And I get a shell prompt inside qemu! (After almost _two_years_ of trying, >>> I'm kind of happy about this.) >>> >>> The downside is that the result boots fine under qemu-0.9.0, but is broken >>> with current cvs. I tracked it down to the specific patch with "git >>> bisect", >>> and it's this one: >>> >>> http://git.kernel.dk/?p=qemu.git;a=commit;h=36f447f730f61ac413c5b1c4a512781f5dea0c94 >>> >>> author j_mayer <j_mayer> >>> Mon, 9 Apr 2007 22:45:36 +0000 (22:45 +0000) >>> committer j_mayer <j_mayer> >>> Mon, 9 Apr 2007 22:45:36 +0000 (22:45 +0000) >>> >>> Implement embedded IRQ controller for PowerPC 6xx/740 & 750. >>> Fix PowerPC external interrupt input handling and lowering. >>> Fix OpenPIC output pins management. >>> Fix multiples bugs in OpenPIC IRQ management. >>> Fix OpenPIC CPU(s) reset function. >>> Fix Mac99 machine to properly route OpenPIC outputs to the PowerPC input >>> pins. >>> Fix PREP machine to properly route i8259 output to the PowerPC external >>> interrupt pin. >>> >>> Versions before that patch went in work fine. Versions since then hang >>> halfway through IDE controller initialization: >>> >>> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 >>> ide: Assuming 33MHz system bus speed for PIO modes; override with >>> idebus=xx >>> hda: QEMU HARDDISK, ATA DISK drive >>> hda: IRQ probe failed (0x0) >>> hdb: IRQ probe failed (0x0) >>> hdb: IRQ probe failed (0x0) >>> hdb: QEMU CD-ROM, ATAPI CD/DVD-ROM drive >>> hdb: IRQ probe failed (0x0) >>> <-- hangs here with the patch >>> ide0 at 0x1f0-0x1f7,0x3f6 on irq 13 >>> hda: max request size: 512KiB >>> hda: 4194304 sectors (2147 MB) w/256KiB Cache, CHS=4161/255/63 >>> hda: set_multmode: status=0x41 { DriveReady Error } >>> hda: set_multmode: error=0x04 { DriveStatusError } >>> ide: failed opcode was: 0xef >>> hda: cache flushes supported >>> hda: unknown partition table >>> mice: PS/2 mouse device common for all mice >>> >> The small patch below fixes the IDE problem, but not the NE2000 ISA one. >> Please apply. > > This patch makes the PreP target run for me, using OpenHackWare, and I > got NE2000 working too. > 2.4 vanilla kernels runs perfectly, as well as old 2.6 ones. But there > still seems to be problems with recent 2.6 kernels not using the frame > buffer properly: I can see the kernel entering user mode, from the > messages on the serial console, but I got no more messages from here. > But I guess it's booting as I can see the CPU entering sleep mode a few > seconds after reaching this point, the same way it does when I can see > it waiting for the user login. > So I will apply the patch. I also added PCI network devices but still > haven't validated them. >
Would it be possible to share your configuration file for 2.6 kernels and OpenHackWare? I would like to give a try and see if the problem of processes hanging in "D" state is also present. -- .''`. Aurelien Jarno | GPG: 1024D/F1BCDB73 : :' : Debian developer | Electrical Engineer `. `' [EMAIL PROTECTED] | [EMAIL PROTECTED] `- people.debian.org/~aurel32 | www.aurel32.net
