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[Xen-devel] Stock 2.6.27 kernel hanging on WP test

Jeremy Fitzhardinge writes:
 > When I boot Fedora 9 with a stock 32-bit-PAE kernel, it's
 > hanging forever in the WP test.  I'm running current xen-unstable
 > 1d7221667204.
 > Another kernel (I think non-PAE this time) complained that the WP test
 > failed (ie, supervisor was allowed to write to a RO page without fault).

Hm. Given what you say in the follow-up emails, this looks like a
pretty huge bug.  Something must be very wrong since we're not
distinguishing between user-driven faults and actual shadow bugs. *OR*
we're failing injecting the fault (very unlikely).

 > The previous version of Xen I tried (only a couple of days ago), crashed
 > with "(XEN) Assertion 'v->arch.paging.mode' failed at multi.c:4069" when
 > starting the same domain, but I'm not sure if it got to the same point.

This seems more like a race at domain creation.


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