Le 23/11/2011 15:08, Ian Campbell a écrit : >>> If you boot the same kernel natively what happens when you run pygrub? >>> (this should work natively, although obviously you won't be able to >>> actually start a VM). >> Yes it does work: I see the grub interface. > What happens if you pass "noxsave" to the native kernel? > > [...] > If I am right then using "noxsave" on native should demonstrate the > issue as well and show that there is a bug in libc. > you are right. With noxsave, I have same behaviour of pygrub under a native kernel. > However that doesn't rule out a bug in the hypervisor as well since it > should support xsave... except I've just noticed that xsave is > deliberately disabled in Xen 4.1! > > It has been re-enabled in xen-unstable with the comment "re-enable xsave > by default now that it supports live migration" (so it will work in 4.2 > when it is released). This suggests that you could try with "xsave=1" on > your hypervisor command line (but that migration won't work). > With xsave=1 pygrub works ! However xend segfaults later while starting the domU :/ Will try to get a stack, but as you state below:
> Which seems to already be reported and fixed upstream: > http://sourceware.org/bugzilla/show_bug.cgi?id=13007 > as well as against glibc in Debian http://bugs.debian.org/646549. The > fix is fixed in glibc-package SVN so ought to be fixed with the next > upload (2.13-22). > Maybe I should wait for this libc release before going further. Alexandre. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
