[Qemu-devel] Re: QEMU >= 0.5.3 still broken?

[Fabrice Bellard]

Herbert Poetzl wrote:
> Hi Fabrice!
>
> did a checkout of qemu a few minutes ago (from CVS)
> but qemu-fast and qemu (softmmu) is still broken for
> me ...
>
> any plans to fix this, anything I could do to help?
>
> just for the case you do not remember, ide hard disk
> emulation doesn't work for 2.6.x anymore (partitions
> and second hard disk are not recognized)
>
> qemu 0.5.2 work without any issues, 0.5.3 and latest
> CVS fails ...

It is not an IDE problem: it is just that my new method to launch the 
kernel with '-kernel' in 0.5.3 does not preserve the partition table. I 
will try a fix (I did not see this problem because in my Linux tests I 
don't use hard disk partitions!).

The TSC problem you have seem to be linked to the 1000 Hz timer of the 
2.6 kernel. You must change HZ to 100 in asm/param.h. I'll make a patch 
for that soon in QEMU, but the emulation will be less efficient for 1000 
Hz clock as polling or /dev/rtc will be used on the host.

Fabrice.