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From: Simon Horman <horms@verge.net.au>
To: Alexander Egorenkov <egorenar-dev@posteo.net>
Cc: rmk@armlinux.org.uk, kexec@lists.infradead.org
Subject: Re: [PATCH v2 1/1] arm: do not copy magic 4 bytes of appended DTB in zImage
Date: Sat, 17 Apr 2021 09:21:17 +0200	[thread overview]
Message-ID: <20210417072115.GC2573@vergenet.net> (raw)
In-Reply-To: <20210412111805.31643-1-egorenar-dev@posteo.net>

On Mon, Apr 12, 2021 at 01:18:05PM +0200, Alexander Egorenkov wrote:
> If the passed zImage happens to have a DTB appended, then the magic 4 bytes
> of the DTB are copied together with the kernel image. This leads to
> failed kexec boots because the decompressor finds the aforementioned
> DTB magic and falsely tries to replace the DTB passed in the register r2
> with the non-existent appended one.
> 
> Signed-off-by: Alexander Egorenkov <egorenar-dev@posteo.net>
> ---
> 
> v1 -> v2:
>   * Add a comment explaining the reason for introducing kernel_buf_size 

Thanks Alexander, applied.

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      reply	other threads:[~2021-04-17  7:21 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-12 11:18 [PATCH v2 1/1] arm: do not copy magic 4 bytes of appended DTB in zImage Alexander Egorenkov
2021-04-17  7:21 ` Simon Horman [this message]

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