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Re: [PATCH 0/5] earlycon hang under some conditions

From Andy Shevchenko <andy.shevchenko@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 0/5] earlycon hang under some conditions
Date 2017-07-30 16:40 +0200
Message-ID <u8XxU-1uh-9@gated-at.bofh.it> (permalink)
References <u4tRL-7a0-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Jul 18, 2017 at 9:02 AM, Jeffy Chen <jeffy.chen@rock-chips.com> wrote:
> I was testing earlycon with 8250 dw serial console. And it hangs in
> these cases:
> 1/ kernel hang when calling early write function after free_initmem:
> a) the earlycon not disabled after the init code(due to keep_bootcon or
>    not specify a real console to switch to)
> b) the early write func is marked as __init, for example 8250_early.

> This serial fix 1/ case only.

Here is another opinion.
I can tell that conditions to get into the trouble are quite unusual or rare.

Any rationale behind why one needs such a combination of parameters?

P.S. For doulble output ask Sergey and Petr (they are quite concerned
about it). Actually strange I didn't see their names in Cc list for
console related stuff,

-- 
With Best Regards,
Andy Shevchenko

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Re: [PATCH 0/5] earlycon hang under some conditions Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-07-30 16:40 +0200

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