[Qemu-devel] kqemu on celeron 64-bit (fwd)

[Ryan Jud Hughes <ryan@linuxbox.com>]

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Hi.  I'm not sure this message made it to the list (I never saw it come 
back), so I'm re-sending it.  If it actually did make it before, I 
apologize.

Thanks.
--Ryan

---------- Forwarded message ----------
Date: Sat, 17 Nov 2007 12:13:45 -0500 (EST)
From: Ryan Jud Hughes <rjhughes@linuxbox.com>
To: qemu-devel@nongnu.org
Subject: kqemu on celeron 64-bit

Hi.  I'm attempting to run qemu with kqemu on an intel celeron host, with a 
variety of guests, and getting no luck.

I've got a few different guests I'm trying:
1. Damn-Small Linux, a 32bit linux 2.4 kernel.
2. Puppy Linux, a 32bit linux 2.6 kernel.
3. Debian businesscard, a 64bit linux 2.6 kernel.

Lemme show you what versions of things I'm using:
QEMU PC emulator version 0.9.0, Copyright (c) 2003-2007 Fabrice Bellard
(I downloaded the source and compiled it)

kqemu, I got the source package from ubuntu gutsy:  1.3.0~pre11-6

Linux version 2.6.22-14-generic (buildd@crested) (gcc version 4.1.3 20070929 
(prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Sun Oct 14 21:45:15 GMT 2007
cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 22
model name      : Intel(R) Celeron(R) CPU          530  @ 1.73GHz
stepping        : 1
cpu MHz         : 1729.066
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss tm syscall nx lm constant_tsc 
up pni monitor ds_cpl tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 3463.63
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:




All of these things work if kqemu is not enabled.  Here's how they fail if I do 
try to use kqemu and qemu-system-x86_64:

1. Damn-Small Linux begins to start Xwindows, and then hangs with a black
    screen indefinitely.
2. Puppy Linux prints a kernel crash onto the SDL screen.  I can't figure
    out how to get it to run with a serial console, though.  Otherwise, I
    would've loved to have copy/pasted it here.  I included a screenshot of
    that one.
3. Debian businesscard actually crashed the whole emulator.  This is what
    it printed on my console after it crashed.

RAX=0000000000000000 RBX=ffffffff80451ca0 RCX=000000000000001c 
RDX=ffffffff804c0ec0
RSI=000000000000001c RDI=ffffffff80451ca0 RBP=0000000000000286 
RSP=ffffffff804c0ee0
R8 =0000000000000011 R9 =ffffffff804c0ec0 R10=ffffffff804c0f30 
R11=ffff81000729bce0
R12=ffff8100070d23c0 R13=0000000000000000 R14=0000000000000246 
R15=ffff810007efc800
RIP=ffffffff80287a84 RFL=00010206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00af9a00
SS =0018 0000000000000000 ffffffff 00cf9300
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 ffffffff80521000 00000000 00000000
LDT=0000 0000000000000000 00000000 00008000
TR =0040 ffff810001003000 0000206f 01008900
GDT=     ffffffff80532000 00000080
IDT=     ffffffff804c7000 00000fff
CR0=8005003b CR2=00002ab0bfbd3880 CR3=00000000072a7000 CR4=000006e0
Unsupported return value: 0xffffffff


I don't know if the debugging info I've provided is the right stuff, so tell me 
if you need anything else.


Thanks.
--Ryan

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