linux-kernel - Re: [PATCH] Fix turbostat exiting with an error when run on AMD CPUs

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Date:   Wed, 14 Apr 2021 22:08:07 -0400
From:   Calvin Walton <calvin.walton@...stin.ca>
To:     Linux PM list <linux-pm@...r.kernel.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Len Brown <lenb@...nel.org>, Chen Yu <yu.c.chen@...el.com>
Subject: Re: [PATCH] Fix turbostat exiting with an error when run on AMD CPUs

On Wed, 2021-04-14 at 22:05 -0400, Calvin Walton wrote:
> The current version of turbostat exits immediately upon entering the
> main loop, with error code -13. This is a regression that was
> introducted
> in these commits:
> 
> 9972d5d84d76 tools/power turbostat: Enable accumulate RAPL display
> 87e15da95775 tools/power turbostat: Introduce functions to accumulate
> RAPL consumption

Ah, I failed to check the mailing list before sending this patch! Terry
Bowman's fix here should probably be preferred:
https://patchwork.kernel.org/project/linux-pm/patch/20210331155807.3838-1-terry.bowman@amd.com/

My patch was simply the minimum necessary to get turbostat working
again.
-- 
Calvin Walton <calvin.walton@...stin.ca>