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SubjectRe: [RESEND PATCH v2 0/2] Add support for ZSTD-compressed kernel
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Hi,

On 22 Mar 2018, at 13:35, Adam Borowski <kilobyte@angband.pl> wrote:

> On Thu, Mar 22, 2018 at 12:09:45PM +0100, René Rebe wrote:
>> Should this currently just work without any arch change on e.g.
>> ppc64, sparc64 et al.? I could do a test build and boot if that is
>> of any value, ...
>
> Initrd: no reason it wouldn't work, although for anything related to the
> boot process testing is a very good idea. If you test, you'd really want to
> apply that printk patch I posted, it's too easy to accidentally get a silent
> fallback to gzip or uncompressed. I wonder, perhaps such a printk could be
> permanently added, at a low message priority?

zstd initrd worked on sparc64/sun4u - Ultra 30:

https://www.youtube.com/watch?v=10q2OxHAzQ4

Any chance we could get this initrd zstd support upstream?

> Kernel itself: needs per-arch porting, but it's not advertised in kconfig
> outside x86 so that's not a problem.
>
> If you are knowledgeful about bootloaders on ppc64, sparc64, etc, such
> information would be great.


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