** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Committed
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Emil Renner Berthing (esmil)
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https://bugs.launchpad.net/bugs/1980061
Title:
RISC-V enables CONFIG_COMPAT in the unstable branch
Status in linux package in Ubuntu:
Fix Committed
Bug description:
[Impact]
* The 5.19 kernel adds RISC-V support for running 32bit binaries on
64bit systems, but only with hardware support.
So far no chips have been released that support it and it's not even
implemented in upstream Qemu. Also neither Ubuntu nor any other
mainstream Linux distro ships 32bit binaries, so this enables a
bunch of code that will most likely never be used.
[Test Plan]
* Setting CONFIG_COMPAT=n just disables a feature that was added in
5.19, so should have no impact on userspace compared to earlier
kernels.
[Where problems could occur]
* This was implemented by T-Head (Alibaba) so will most likely be
supported by one of their future designs. If it turns out to be
useful on these cores we can always enable it later.
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