Re: [PATCH] linux-custom: Pin buster compat level to 10 to fix kernel builds

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 03.02.25 11:54, 'Jan Kiszka' via isar-users wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> Compat level 12 of buster selects dh_dwz which breaks in that old
> version with certain kernels, e.g. like this:
> 
>  dwz: dwz.c:9255: recompute_abbrevs: Assertion `off == cu_size' failed.
>  dh_dwz: dwz -q -- debian/linux-image-cip-dbg/usr/lib/debug/lib/modules/5.10.233-cip56/vmlinux died with signal 6
> 
> As buster is LTS now, we take the low-risk path and switch back to the
> compat level the recipe was once validated again, rather than trying to
> resolve this and possibly more issues.
> 
> Fixes: ca786c36bca9 ("meta/recipes-kernel: use debhelper-compat to generate compat file")
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
>  meta/recipes-kernel/linux/linux-custom.inc | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/meta/recipes-kernel/linux/linux-custom.inc b/meta/recipes-kernel/linux/linux-custom.inc
> index 77700a5d..d2fca3aa 100644
> --- a/meta/recipes-kernel/linux/linux-custom.inc
> +++ b/meta/recipes-kernel/linux/linux-custom.inc
> @@ -14,6 +14,9 @@ DESCRIPTION ?= "Custom kernel"
>  MAINTAINER ?= "isar-users <isar-users@googlegroups.com>"
>  DISTRIBUTOR ?= "ISAR"
>  
> +# pinned due to known or possible issues with compat 12
> +DEBIAN_COMPAT:buster = "10"
> +
>  KBUILD_DEPENDS ?= "build-essential:native, \
>                     libelf-dev:native, \
>                     libncurses-dev:native, \

This regression fix is still not merged - any blockers? Downstream, it
prevents isar updates.

Jan

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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