Messages in this thread | | | Date | Tue, 25 Aug 2009 12:31:52 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [bisected] 2.6.31 regression: fails to boot as xen guest |
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On 08/25/09 11:43, Pekka Enberg wrote: > Aha, the previous patch worked because I #ifdef the WP test completely. > Jeremy, the root cause here is that we do the WP test much earlier than > before. Even with the test moved to trap_init(), we do it early compared > to what we did before. > > I guess Xen is not prepared to handle traps this early in the boot > sequence? Can we fix that? >
The crash is in the event (interrupt) path, which shouldn't be involved in trap handling at all. I'm wondering if interrupts are getting enabled as a side-effect of handling the trap.
J
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