[Xen-bugs] [Bug 687] x86-64 Dom0 and DomU kernel crashes in page fault handler if alignment checking is enabled in eflags

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=687





------- Comment #3 from gareth@xxxxxxxxxxxxxx  2006-07-14 17:18 -------
For those looking to try this fix, the procedure is

1. Get yourself a x86-64 machine with GCC and the standard development
environment.
2. Get yourself the xen-3.0.2-src.tgz tarball.  Expand it.
3. Insert the three asm instructions described above in
linux-2.6-xen-sparse/arch/x86_64/kernel/entry-xen.S
4. Build Xen as normal using "make dist" followed by "./install.sh"

Those three asm lines are just explicity disabling the alignment checking in
rflags during the interrupt handler.


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