Re: [PATCH] x86: prevent unconditional writes to DebugCtl MSR

[Ingo Molnar]

* Jan Beulich <jbeulich@xxxxxxxxxx> wrote:

> Otherwise, enabling (or better, subsequent disabling) of single 
> stepping would cause a kernel oops on CPUs not having this MSR.
> 
> The patch could have been added a conditional to the MSR write in 
> user_disable_single_step(), but centralizing the updates seems safer 
> and (looking forward) better manageable.

thanks Jan, applied.

	Ingo
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