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Re: [Qemu-devel] [PATCH] isapc: Fix segfault during initialization
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PATCH] isapc: Fix segfault during initialization |
Date: |
Sun, 15 Jan 2012 15:40:40 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2012-01-15 15:38, Anthony Liguori wrote:
> On 01/14/2012 07:12 AM, Jan Kiszka wrote:
>> From: Jan Kiszka<address@hidden>
>>
>> Linking the RTC device state to the PIIX does not belong into the
>> common path that is shared with the isapc. QEMU crashes otherwise.
>>
>> Signed-off-by: Jan Kiszka<address@hidden>
>
> Does isapc actually work for you? I tried to write a qemu-test test
> case (attached below) to help prevent future regressions. I can
> reproduce your SEGV but with your patch applied, I get no output (not
> even the BIOS runs).
>
> Here's the command line. Even a simple 'qemu-system-x86_64 -M isapc'
> reproduces it:
>
> /home/anthony/build/qemu/x86_64-softmmu/qemu-system-x86_64 -kernel
> bin/vmlinuz-3.0 -initrd .tmp-3510/initramfs-3510.img.gz -append
> console=ttyS0 seed=24689 -M isapc -pidfile .tmp-3510/pidfile-3510.pid
> -qmp unix:.tmp-3510/qmpsock-3510.sock,server,nowait
You need to update seabios to the last release at least (should have
been done much earlier), and it only works for KVM (as that mode ignores
some ROM write protections where seabios obviously has some troubles with).
Jan
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