Messages in this thread | | | Date | Fri, 15 Jan 2010 00:36:42 -0800 (PST) | From | Christian Kujau <> | Subject | Re: 2.6.33-rc2: Xen/Guest switching to user mode with no user page tables |
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On Sun, 10 Jan 2010 at 12:59, Ian Campbell wrote: > The correct fix is for the Xen backend to declare kernel RPL == 0 for 64 > bit guests -- the hyervisor already takes care of all the necessary > squashing to ring 3 transparently (because making the guest worry about > it would break the very common assumption that you can distinguish user > from kernel CS by RPL).
Yes' it's a 64bit guest, I should have mentioned this from the beginning. With the 2 patches from Ian and Cyrill applied, the DomU is now booting fine again (currently running mainline -git).
Cyrill: with your patch alone (for arch/x86/kernel/process.c), the DomU is still not booting, Dom0 "xm dmesg" reporting the same error. As it's working with both patches applied, should I try to test with only Ian's patch (for arch/x86/xen/enlighten.c) applied?
In any case, feel free to add:
Tested-by: Christian Kujau <lists@nerdbynature.de>
Thanks so much for your efforts to everyone involved!
Christian. -- BOFH excuse #436:
Daemon escaped from pentagram
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