linux-kernel - Re: Regression in suspend-to-ram (TPM related) with 5.1-rc1 (BISECTED)

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Message-ID: <20190409134231.GC9759@linux.intel.com>
Date:   Tue, 9 Apr 2019 16:42:31 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Martin Kepplinger <martin.kepplinger@...zinger.com>
Cc:     Paul Zimmerman <pauldzim@...il.com>,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Regression in suspend-to-ram (TPM related) with 5.1-rc1
 (BISECTED)

On Mon, Apr 08, 2019 at 11:04:22AM +0200, Martin Kepplinger wrote:
> On 08.04.19 08:59, Paul Zimmerman wrote:
> > On Sun, Apr 7, 2019 at 10:53 PM Martin Kepplinger
> > <martin.kepplinger@...zinger.com> wrote:
> >>
> >> On 21.03.19 14:41, Jarkko Sakkinen wrote:
> >>> On Tue, Mar 19, 2019 at 04:03:37PM -0700, Paul Zimmerman wrote:
> >>>> So I bisected this down to:
> >>>>
> >>>> # first bad commit: [a3fbfae82b4cb3ff9928e29f34c64d0507cad874] tpm:
> >>>> take TPM chip power gating out of tpm_transmit()
> >>>>
> >>>> but this doesn't revert cleanly on Linus' HEAD. Anyone have an idea what
> >>>> could be wrong here?
> >>>
> >>> Sorry I've been in flu for the early week. I spotted the bug
> >>> immediately.  When I did these patches I did not have TPM 1.x at my
> >>> hand. I used fTPM 2.0 and dTPM 2.0. Stefan did TPM 1.x testing but I
> >>> probably forgot to ask him to try out suspend.
> >>>
> >>> Anyway, the bug is obvious and I'll send you a patch to try out.
> >>> Thanks a lot for bisecting this!
> >>>
> >>> /Jarkko
> >>
> >> Hi,
> >>
> >> Any news on this? It seems not to be fixed in -rc4. I'd happily test a
> >> patch too.
> >>
> > Hi Martin,
> > Patch is here: https://patchwork.kernel.org/patch/10865495/
> > Don't know what the status of it is though.
> > 
> > -- Paul
> > 
> 
> thanks. lgtm.
> 
> Tested-by: Martin Kepplinger <martink@...teo.de>

Thank you for testing this. Unfortunately it is already pulled so
cannot add new tags.

/Jarkko