Re: [Qemu-devel] OpenBios in Sparc can't handle long kernel command lines.

[Rob Landley]

On 04/19/2013 05:27:55 AM, Mark Cave-Ayland wrote:
> On 22/03/13 05:19, Rob Landley wrote:
>
> > If I do this:
> >
> > qemu-system-sparc -nographic -no-reboot -kernel image -hda hda.sqf
> > -append 'root=/dev/sda rw init=/sbin/init.sh panic=1
> > PATH=/usr/distcc:/bin:/sbin console=ttyS0 HOST=sparc CPUS=1
> > DISTCC_HOSTS=10.0.2.2:31322/1 FTP_SERVER=10.0.2.2 FTP_PORT=31307
> > NATIVE_BUILD=lfs-bootstrap ' -hdb hdb.img -hdc lfs-bootstrap.hdc -m  
> > 256
> >
> > qemu goes:
> >
> > ^[[H^[[JConfiguration device id QEMU version 1 machine id 32
> > CPUs: 1 x FMI,MB86904
> > Unhandled Exception 0x00000007
> > PC = 0xffd07d28 NPC = 0xffd07d2c
> > Stopping execution
> >
> > And then hangs. I've never figured out why it clears the screen first
> > (none of the other targets do), but I _have_ figured out that the
> > unhandled exception is "kernel command line too long". Because 197  
> > bytes
> > is just too much data for Sparc to cope with.
> >
> > Rob
>
> This is now fixed in OpenBIOS SVN trunk, and so should be included in  
> QEMU 1.5
> when we update the images in git master. Thanks for the report!

Yay! Thank you. I look forward to trying it out when QEMU refreshes.

Rob