Re: [PATCH] mm: kill kmemcheck

On 03/11/2015 03:39 PM, Sasha Levin wrote:

On 03/11/2015 08:40 AM, Steven Rostedt wrote:

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On Wed, 11 Mar 2015 08:34:46 -0400
Sasha Levin [off-list ref] wrote:

quoted

quoted

Fair enough. We knew there are existing kmemcheck users, but KASan should be
superior both in performance and the scope of bugs it finds. It also shouldn't
impose new limitations beyond requiring gcc 4.9.2+.

Ouch! OK, then I can't use it. I'm currently compiling with gcc 4.6.3.

It will be a while before I upgrade my build farm to something newer.

Are you actually compiling new kernels with 4.6.3, or are you using older
kernels as well?

There's no real hurry to kill kmemcheck right now, but we do want to stop
supporting that in favour of KASan.

Just my $0.017 for me I wish there was the single config MEM_CHECK and
the new or old would be selected automatically depending on enabling
factors, for example gcc version, if arch dependent and so on.

Thanks
Boaz