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Subject: [Bug 217994] Kernel panic in native_lapic_setup with 12-CURRENT on
 EC2 machine
Date: Wed, 22 Mar 2017 10:09:57 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217994

--- Comment #14 from Andriy Gapon <avg@FreeBSD.org> ---
(In reply to Sylvain Garrigues from comment #13)
Thanks! I suspect that the problem is with BEXTR instruction that is availa=
ble
on Haswell, but does not seem to provided by (at least some) EC2 instances.=
=20
Not sure if it requires any support from the hypervisor or if it's a problem
with underlying hardware not supporting the instruction.
So, I bet on your guess from comment #9.

--=20
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