Re: [PATCH v4 01/10] kcsan: Add Kernel Concurrency Sanitizer infrastructure

From: Qian Cai
Date: Tue Nov 19 2019 - 16:42:32 EST

> On Nov 19, 2019, at 2:54 PM, Marco Elver <elver@xxxxxxxxxx> wrote:
> Regardless of approach, my guess is that the complexity outweighs any
> benefits this may provide in the end. Not only would a hypothetical
> kernel that combines these be extremely slow, it'd also diminish the
> practical value because testing and finding bugs would also be
> impaired due to performance.

On the other hand, it is valuable for distros to be able to select both for the debug kernel variant. Performance is usually not a major concern over there and could be migrated by other means like selecting powerful systems etc.