Re: REGRESSION WITH BISECT: v6.5-rc6 TPM patch breaks S3 on some Intel systems

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On Sat Sep 2, 2023 at 5:47 AM EEST, Tyler Stachecki wrote:
> On Fri, Aug 18, 2023 at 02:39:58PM -0700, Todd Brandt wrote:
> > > > > > > > > > > > > While testing S3 on 6.5.0-rc6 we've found that 5
> > > > > > > > > > > > > systems are seeing
> > > > > > > > > > > > > a
> > > > > > > > > > > > > crash and reboot situation when S3 suspend is
> > > > > > > > > > > > > initiated. To
> > > > > > > > > > > > > reproduce
> > > > > > > > > > > > > it, this call is all that's required "sudo
> > > > > > > > > > > > > sleepgraph -m mem
> > > > > > > > > > > > > -rtcwake
> > > > > > > > > > > > > 15".
> > > > > > > > > > > > 
> > 
> > I just ran 6.5.0-rc6 plus this patch on all 5 machines where the
> > problem was detected and they work now. It looks good.
> > 
> > Tested-by: Todd Brandt <todd.e.brandt@xxxxxxxxxxxxxxx>
>
> I just wanted to report that at least on an SBC running a J4105, this
> prevented the kernel from booting *at all* ever since 6.1.46 was released.
>
> The fix which drops the ret assignment above allows the SBC to successfully
> boot a kernel again -- just mentioning for severity given that:
>   1) It also impacts the 6.1 LTS kernel that distros are tracking
>   2) In some cases, the kernel no longer boots anymore at all
>
> SBC this is seen on is a Seeed Studio ODYSSEY - X86J4105 for the curious.
>
> Tested-by: Tyler J Stachecki <stachecki.tyler@xxxxxxxxx>

Hi I submitted PR today:

https://lore.kernel.org/linux-integrity/20230904202512.29825-1-jarkko@xxxxxxxxxx/T/#u

I hope this ends the story but please if does not.

Unfortunately I missed this tested-by b4 sending the PR (sorry
about that).

BR, Jarkko




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