From: Rick Vernam <rickv@hobi.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] reproducable triple-faults
Date: Mon, 5 May 2008 19:56:30 -0500 [thread overview]
Message-ID: <200805051956.30458.rickv@hobi.com> (raw)
stop here if you are not interested in problems on 'unsupported gcc4' ...
this is way out of my forte, so I guess reporting is second best to fixing?
Running on an athlon64 2.4ghz (64-bit linux 2.6.25)...
If I am using a power-saving mode which slows the processor down (conservative
govener, typically at 800mhz), a windows xp virtual machine will triple fault
seemingly invariably. As soon as I crank it up to performance govener, qemu
runs just great.
I assume this problem can be attributed to gcc4. It's been hapening for quite
some time, but only recently have I attributed this triple fault to the use
of power-saving modes.
gcc --version: gcc (GCC) 4.1.2 (Gentoo 4.1.2 p1.0.1)
qemu: fatal: triple fault
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000000
ESI=00000000 EDI=00000000 EBP=00000000 ESP=804d7000
EIP=8053f840 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0023 00000000 ffffffff 00cff300
CS =0008 00000000 ffffffff 00cf9a00
SS =0010 00000000 ffffffff 00cf9300
DS =0023 00000000 ffffffff 00cff300
FS =0030 ffdff000 00001fff ffc093df
GS =0000 00000000 00000000 00000000
LDT=0000 00000000 00000000 00000000
TR =0050 80549300 00000068 80008954
GDT= 8003f000 000003ff
IDT= 8003f400 000007ff
CR0=e001003d CR2=804d6ffc CR3=002e4000 CR4=00000020
CCS=00000000 CCD=8053f434 CCO=EFLAGS
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
/usr/bin/wxp.sh: line 6: 5228 Aborted
qemu-system-x86_64 -kernel-kqemu -hda wxp.qc2 -m 384 -name WinXP -net
nic,model=e1000 -net
tap,script=/etc/qemu-ifup -localtime -soundhw ,es1370, -std-vga
While I have not tracked the values of the various registers for more than 4
or 5 triple-faults, they were the same each time.
Is there additional information that you might find useful?
next reply other threads:[~2008-05-06 0:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-06 0:56 Rick Vernam [this message]
2008-05-06 1:02 ` [Qemu-devel] reproducable triple-faults Rick Vernam
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