Re: msm8992-lg-bullhead-rev-101 resets in initramfs

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On Sat, 1 Oct 2022 at 10:52, Krzysztof Kozlowski
<krzysztof.kozlowski@xxxxxxxxxx> wrote:
>
> On 30/09/2022 23:39, Petr Vorel wrote:
> > I'm sorry, forget to add links.
> > Petr
> >
> > [1] https://gitlab.com/-/snippets/2420133
> > [2] https://gitlab.com/postmarketOS/pmaports/-/blob/master/main/postmarketos-mkinitfs/init_functions.sh#L514-523
> > [3] https://gitlab.com/postmarketOS/pmaports/-/blob/master/main/postmarketos-mkinitfs-hook-debug-shell/20-debug-shell.sh
> > [4] https://gitlab.com/-/snippets/2420128
> >
> > On Fri, 30 Sept 2022 at 23:30, Petr Vorel <petr.vorel@xxxxxxxxx> wrote:
> >>
> >> Hi all,
> >>
> >> [ sorry for sending mail twice, now as plain text. I should move away
> >> from gmail.com to something which allows to use mutt... ]
> >>
> >> Some releases after 5.17 bullhead rev 1.01 started to reset.
> >> I'm not sure which kernel version it started, because it might be
> >> caused by kernel config or dts changes.
>
> I propose to try to bisect it to specific commit in Linux kernel.
Hi Krzysztof,

thanks for a suggestion, that's what I do for a non-embedded kernel (e.g.
x86_64, ppc64le, or even aarch64 used on server), because these works on
defconfig. But on qcom bullhead and angler devices, last few months I've come
across to few broken boots, although some of them were regressions others
depends a lot on particular config.  And since last 2 or 3 kernel releases it
does not even boot on defconfig. It's quite frustrating to bisect with cross
compilation (takes time) to realize that it boots with custom config. Last time
it took a week and I tried to find what actually caused phone reset,
unsuccessfully. That's why I'm asking before wasting more time.

Of course with no suggestion I there is no other option than to do
bisecting again.


Kind regards,
Petr

> Best regards,
> Krzysztof
>



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