ACK: [SRU][xenial/hwe][PATCH 0/1] Fix boot failure on ppc64el (LP: #1922997)

[Kelsey Skunberg]

Thank you Kleber for getting this fix in.

Acked-by: Kelsey Skunberg <kelsey.skunberg at canonical.com>

On 2021-04-08 21:49:31 , Kleber Sacilotto de Souza wrote:
> [Impact]
> Enabling CONFIG_MODVERSIONS on xenial/linux-hwe (via rebase on bionic/linux, see
> bug 1898716) is causing the kernel to fail booting on ppc64el as the modules
> can't be loaded because of the mismatch of the module_layout symbol.
> 
> [ 7.635173] raid0: disagrees about version of symbol module_layout
> 
> [Fix]
> The proposed fix is to disable CONFIG_MODVERSIONS via the 'local-mangle' script
> which gets called by the 'open' script after the rebase. Making the changes
> directly on the config or annotations file is not persistent as these files are
> synced from master.
> 
> This is a temporary fix until the root cause can be found.
> 
> [Test case]
> Boot the kernel on a xenial ppc64el system.
> 
> [Regression potential]
> This config option has been enabled on Bionic to support rebuilding the lrm
> modules without the need to rebuild the kernel. There are no lrm modules in
> Xenial, so it should be safe to keep it disabled.
> 
> Kleber Sacilotto de Souza (1):
>   UBUNTU: [Packaging] HWE: disable CONFIG_MODVERSIONS
> 
>  debian.hwe/scripts/helpers/local-mangle | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> -- 
> 2.27.0
> 
> 
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