http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=696

------- Comment #2 from tuk...@gmail.com 2006-07-05 05:08 ------- Subject: Re: MacBook reboots spontanously with Xen

------- Comment #1 from ian....@cl.cam.ac.uk 2006-07-05 04:48 -------

I'm using Boot Camp for diskinitialisation, rEFIt ( http://refit.sourceforge.net) as boot manager at the EFI side to select MacOS/X, Linux or boot from another device, and a patched Grub installed at /dev/sda3 for selecting the kernel version. Normal Fedora kernel boot works fine.

I've seen this problem on Ubuntu 6.0.6 and Fedora Core 6 beta, with standard packages as well with a specialised Xen kernel.

BTW: are the intel mac minis sufficiently similar to the macbook that its

I guess not. I've used this tutorial to install

http://www.fi.ameslab.gov/Projects/mini-xen/index.html

I've heard it works on Mac minis, and I've read that several Macbooks have this rebooting problem.

The lack of VMX is presumably due to it being disabled by the BIOS. Not much

I could, as this could be turned on in EFI shell. But I have VMXON done when I don't use nosmp. So I think it is on by default.

I find it strange too. Any way I can give you enough information? The kernel crashes occasionally at startup on APIC, setting noapic in regular kernel fixes this but the system is slow on mouse then. When I set noapic on Xen, nothing changes. It still reboots. I'm using the default Fedora Xen image at the moment.

Raymond. <br><span class="gmail_quote"></span><br><div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">------- Comment #1 from <a href="mailto:ian....@cl.cam.ac.uk"> ian....@cl.cam.ac.uk</a>&nbsp;&nbsp;2006-07-05 04:48 -------<br>Please can you give details of how you got xen/linux to boot on the macbook.</blockquote><div><br>I'm using Boot Camp for diskinitialisation, rEFIt (<a href="http://refit.sourceforge.net"> http://refit.sourceforge.net</a>) as boot manager at the EFI side to select MacOS/X, Linux or boot from another device, and a patched Grub installed at /dev/sda3 for selecting the kernel version. Normal Fedora kernel boot works fine. <br><br>I've seen this problem on Ubuntu 6.0.6 and Fedora Core 6 beta, with standard packages as well with a specialised Xen kernel.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> BTW: are the intel mac minis sufficiently similar to the macbook that its worth<br>trying to repro on one?</blockquote><div><br>I guess not. I've used this tutorial to&nbsp; install<br><br><a href="http://www.fi.ameslab.gov/Projects/mini-xen/index.html"> http://www.fi.ameslab.gov/Projects/mini-xen/index.html</a><br><br>I've heard it works on Mac minis, and I've read that several Macbooks have this rebooting problem.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> The lack of VMX is presumably due to it being disabled by the BIOS. Not much we<br>can do about that.</blockquote><div><br>I could, as this could be turned on in EFI shell. But I have VMXON done when I don't use nosmp. So I think it is on by default. <br>&nbsp;</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">The crashing without nosmp issue is interesting -- Xen works fine on most yonah<br> laptops.<br></blockquote></div><br>I find it strange too. Any way I can give you enough information? <br>The kernel crashes occasionally at startup on APIC, setting noapic in regular kernel fixes this but the system is slow on mouse then. When I set noapic on Xen, nothing changes. It still reboots. <br>I'm using the default Fedora Xen image at the moment.<br><br>Raymond.<br>