Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL)

From	Steven Shiau <steven.shiau@niar.org.tw>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL)
Date	2026-03-19 14:20 +0100
Message-ID	<MAls6-8HNW-7@gated-at.bofh.it> (permalink)
References	<MyKNY-7Bmp-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Salvatore,

> I believe this is the same as reported upstream in
> https://lore.kernel.org/all/b3e941b0-38d1-4809-a386-34659a20415e@gmail.com/
>
> In my understanding it was decided that that new created arrays will
> not be possible to assemble with older kernels. Future stable series
> kernels might get an additional patch to make it possible that array
> with default lbs can be still assembled again in old kernels.
>
Got it. Thank you very much for the info.

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Steven Shiau <steven _at_ stevenshiau org>
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Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL) Steven Shiau <steven@spider.nchc.org.tw> - 2026-03-15 05:00 +0100
  Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL) Salvatore Bonaccorso <carnil@debian.org> - 2026-03-15 09:00 +0100
  Processed: Re: Bug#1130775: Regression: MDRAID 1.2 superblock  created in Kernel 6.19 is rejected by older kernels (-EINVAL) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-03-15 09:00 +0100
  Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL) Steven Shiau <steven.shiau@niar.org.tw> - 2026-03-19 14:20 +0100
  Bug#1130775: Regression: MDRAID 1.2 superblock created in Kernel 6.19 is rejected by older kernels (-EINVAL) Steven Shiau <steven.shiau@niar.org.tw> - 2026-03-19 14:20 +0100

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