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https://bugzilla.novell.com/show_bug.cgi?id=680120

https://bugzilla.novell.com/show_bug.cgi?id=680120#c10


Jiri Slaby <jslaby@xxxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
       InfoProvider|                            |Markus.Elfring@xxxxxx

--- Comment #10 from Jiri Slaby <jslaby@xxxxxxxxxx> 2011-03-17 09:48:55 UTC ---
Well, about the generated exception, the manual says:
#UD
  If CR0.EM[bit 2] = 1.
  (XMM register operations only) if CR4.OSFXSR[bit 9] = 0.
  (XMM register operations only) if CPUID.01H:EDX.SSE2[bit 26] = 0.
#NM If CR0.TS[bit 3] = 1.

CR0.EM should be 0 -- I assume you don't run a virtual machine.
CR4.OSFXSR should be 1 -- you have fxsr capability, so the kernel should set it
to 1.
CPUID.01H:EDX.SSE2 should be 1 -- the capability is listed in the flags above.
#NM should not matter. The kernel should just switch the context and kick the
process to continue.

Is there something in dmesg when this happens?

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