Re: [PR PATCH] [Merged]: linux6.x: backport fix for kexec regression

[sgn <sgn@users.noreply.github.com>]

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There's a merged pull request on the void-packages repository

linux6.x: backport fix for kexec regression
https://github.com/void-linux/void-packages/pull/49529

Description:
All of our `linux6.x` kernel series include a change that breaks `kexec` on certain hardware, notably AMD CPUs using various iterations of the Zen microarchitecture. I can reproduce the issue on my Zen 3 CPU, while [other reports](https://github.com/zbm-dev/zfsbootmenu/discussions/598) reveal that this problem affects ZFSBootMenu users on other iterations. I bisected the problem and confirmed that it is caused by the same commit that [seems to impact users more generally](https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjoseph.com/). Consequently, the current upstream fix is to [just revert the change](https://lore.kernel.org/linux-kernel/8142c0de-e3a4-4e78-aa1b-f5e6503752e4@intel.com/T/#m674760504b865936068602efca9a10fb72e7102e).

While I was backporting the reversion, I took the liberty of updating `linux6.1` as well.

I'm in the process of building and testing kernels with these patches to confirm that it fixes the ZFSBootMenu problem I observed and, assuming so, plan to bump our kernels to include the fix.

cc: @sgn @Duncaen 

[ci skip]

#### Testing the changes
- I tested the changes in this PR: **in process**