[Bug 196093] bhyve error "wrmsr to register 0x1a0" with Ubuntu 13.10

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196093

Neel Natu <neel at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|byve mer error running      |bhyve error "wrmsr to
                   |linux emulation of Ubuntu   |register 0x1a0" with Ubuntu
                   |                            |13.10

--- Comment #10 from Neel Natu <neel at freebsd.org> ---
Thanks for verifying the fix.

The root cause was that the host system had the "no-execute" feature disabled
(intentional?). This was passed through to the virtual machine and the guest
kernel was trying to re-enable the feature by setting bit 34 of
IA32_MISC_ENABLE msr.

bhyve was not handling writes to the IA32_MISC_ENABLE msr which caused it to
exit.

-- 
You are receiving this mail because:
You are the assignee for the bug.