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Re: [Qemu-devel] smp support and ide lba48

From: Jens Axboe
Subject: Re: [Qemu-devel] smp support and ide lba48
Date: Sat, 11 Mar 2006 13:31:15 +0100

On Fri, Mar 10 2006, Mario Goppold wrote:
> Hi,
> I try to install SuSE92-64 on an 400G HD but it fails:
> hda: max request size: 128KiB
> hda: cannot use LBA48 - full capacity 838860800 sectors (429496 MB)
> hda: 268435456 sectors (137438 MB) w/256KiB Cache, CHS=65535/16/63, (U)DMA
>  hda:<4>hda: lost interrupt
> hda: lost interrupt
> ...
> If I switch to 32bit (in grub) it works. Here is my Env:
> Qemu: snapshot20060304 (gcc version 3.3.6)
> KQemu: kqemu-1.3.0pre3 (gcc version 4.0.2, SuSE10.0, 2.6.13-15.8-smp)
> qemu-img create test.img 400G
> qemu-system-x86_64 -m 512 -k de -localtime -smp 2 \
>  -net nic,vlan=0,macaddr=00:01:02:03:04:05 -net tap,vlan=0 \
>  -hda test.img -cdrom /dev/dvd -boot d
> If I reduce the image-size it won't better.
> Yust now I try it without "-smp 2" and see what I want "unkown partition 
> table ..."
> So my question is : Is lba48 not smp save or is smp support broken (or 
> incomplete)?

lba48 support is not committed yet, read the linux messasge - it says it
cannot use lba48, because the drive (qemu) doesn't support it. Find my
latest posting on this list, it should get you going.

Jens Axboe

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