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SubjectRe: [PATCH v4 2/3] Revert "livepatch: Remove reliable stacktrace check in klp_try_switch_task()"
On Tue, Jun 11, 2019 at 04:13:19PM +0200, Miroslav Benes wrote:
> This reverts commit 1d98a69e5cef3aeb68bcefab0e67e342d6bb4dad. Commit
> 31adf2308f33 ("livepatch: Convert error about unsupported reliable
> stacktrace into a warning") weakened the enforcement for architectures
> to have reliable stack traces support. The system only warns now about
> it.
> It only makes sense to reintroduce the compile time checking in
> klp_try_switch_task() again and bail out early.
> Signed-off-by: Miroslav Benes <>

Reviewed-by: Kamalesh Babulal <>

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