[PATCH] ARM: kexec: Fix panic after TLB are invalidated

[Giancarlo Ferrari]

Russell,

On Mon, Feb 01, 2021 at 08:16:33PM +0000, Russell King - ARM Linux admin wrote:
> On Mon, Feb 01, 2021 at 08:07:37PM +0000, Giancarlo Ferrari wrote:
> > Hi,
> 
> Hi,
> 
> > Why we should align 3 ? For the fncpy I suppose.
> 
> Slightly arbitary really - it gives a nice 8-byte alignment to the data.
> .align 2 would also be sufficient.
> 
> > I don't know now how to proceed now, as you (Mark and you) do completely
> > the patch.
> 
> Please can you test my patch and let us know if it solves your problem
> (or even if it works! I haven't tested it beyond build-testing.)
>

sure, unfortunately due to restriction, I hope to test it by the end of the
week. I hope there will be no rush. Otherwise, please let me know.

> > You see is my first kernel patch submission :) .
> 
> Yay. Sorry for giving you a different patch - Mark is quite right that
> there's a better solution to this problem, which is eliminating the
> set_kernel_text_rw() call. The only reason I cooked up the patch was
> doing that would be more in-depth (as you can see from the increased
> size of the patch.)
> 

I definitely agree with you.

> -- 
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Thanks again,


GF