On 4/19/06, Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx> wrote:
> > Maybe one of you quickly can tell me if the x86_64 kernel
> > configuration option CONFIG_IA32_EMULATION is supposed to
> > work under Xen?
> > I've used an ia32 root file system together with
> > CONFIG_IA32_EMULATION inside qemu-system-x86_64 for quite a
> > while now (without xen). It works pretty well.
> > However, when I try this with xen-unstable-9514 all I get is
> > general protection errors...
> It seems to work pretty well for me. What 32b distro are you using?
I'm using a minimal custom initramfs, basically busybox built using crosstool.
> Does the system boot successfully despite the complaints?
Nope. I will get an endless amount of segfault messages, but no shell.
I did some more testing this morning. First I replaced /init with a
native static x86_64 version of bash. /init started ok, but running
the ia32 version of /bin/sh resulted in:
NET: Registered protocol family 17
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 10.0.2.2, my address is 10.0.2.15
device=eth0, addr=10.0.2.15, mask=255.255.255.0, gw=10.0.2.2,
host=10.0.2.15, domain=, nis-domain=(none),
bootserver=10.0.2.2, rootserver=10.0.2.2, rootpath=
sh general protection rip:f7fd684b rsp:ffffd1fc error:802
To understand more I've tried the same initramfs with and without Xen,
on both i386 and x86_64.
Working in qemu (i386): vanilla-2.6.16, linux-2.6.16-xen (dom0)
Working in qemu-system-x86_64: vanilla-2.6.16
Not working in qemu-system-x8x_64: linux-2.6.16-xen (dom0)
I will try to find some real x86_64 hardware, but it the meantime I'd
be happy to email the initramfs to anyone. The file is about 2 megs
Also, I've wonder if this is related to tls? Or maybe it is qemu...
Thanks for the help!
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