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Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES

From Yu-cheng Yu <yu-cheng.yu@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES
Date 2016-04-30 01:20 +0200
Message-ID <rtpRw-69r-11@gated-at.bofh.it> (permalink)
References <r92ut-2hO-1@gated-at.bofh.it> <r92uv-2hO-29@gated-at.bofh.it> <rtnmG-3LT-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Apr 29, 2016 at 01:32:15PM -0700, Dave Hansen wrote:
> The reason I haven't acked this patch is that I want to be _sure_ that
> we've audited all of the call paths that access the XSAVE buffer to
> ensure that they can all either handle the XSAVES format *or* don't care
> for whatever reason.
> 
> Could you share the steps that you've taken to assure yourself that all
> of the call paths are handled and we don't have more bugs?
> 

We tested for signal, ptrace, context switch, avx, and mpx.  We also run
these tests with your audit patch to detect any format mis-match.
That said, I cannot be sure there are no more bugs.  As you said, we want
to get this feature tested in the field and find potential issues early. 

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Thread

Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Dave Hansen <dave.hansen@linux.intel.com> - 2016-04-29 22:40 +0200
  Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Yu-cheng Yu <yu-cheng.yu@intel.com> - 2016-04-30 01:20 +0200
    Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Dave Hansen <dave.hansen@linux.intel.com> - 2016-04-30 02:50 +0200
      Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Yu-cheng Yu <yu-cheng.yu@intel.com> - 2016-05-02 18:20 +0200
        Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Dave Hansen <dave.hansen@linux.intel.com> - 2016-05-05 00:20 +0200
          Re: [PATCH v4 10/10] x86/xsaves: Re-enable XSAVES Yu-cheng Yu <yu-cheng.yu@intel.com> - 2016-05-05 00:30 +0200

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