dtrace fbt vs vmm

[Neel Natu]

Hi Andriy,

On Mon, Jun 22, 2015 at 9:17 AM, Andriy Gapon <avg at freebsd.org> wrote:
> On 22/06/2015 19:08, Peter Grehan wrote:
>> Hi Andriy,
>>
>>> I haven't investigated this issue further, but if there are any unsafe functions
>>> in vmm it would be nice to blacklist them in the fbt code.
>>> Perhaps blacklisting everything from vmm module could be a stopgap solution.
>>
>>  Intel or AMD ? We've been able to run dtrace on Intel; less (to no) coverage on
>> AMD so there's quite possibly bugs there.
>
> Peter,
>
> it's AMD again.
> Thanks!
>

This was an issue with 'svm_launch()' FBT tracing and is fixed in r284712.

Details are in the commit message:
https://svnweb.freebsd.org/base?view=revision&revision=284712

best
Neel

> --
> Andriy Gapon
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