On 05/11/2015 17:07, Gerhard Wiesinger wrote:
> ./trace-cmd record -b 20000 -e kvm
> ./trace-cmd report | grep -i task_switch
>  qemu-system-x86-6024  [001] 792774.719297: kvm_exit: reason task_switch
> rip 0x4883 info 158 4000000000

0x158 is the segment selector of the incoming TSS, and the task switch
was caused by a far jump.

> But I can't interpret it.

Neither can I; you have to send the whole trace.

> But I know my patch works well. Since it is
> just a module parameter it is fully backward compatible by default and
> because of the one liner no side effects are possible. So a intergration
> would be good.

It's also papering over a bug, and likely the bug still triggers on
Intel systems.  So it's not acceptable.

Can you provide reproduction instructions please?

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