linux-kernel - Re: regression/bisected commit 773688a6cb24b0b3c2ba40354d883348a2befa38 make my system completely unusable under high load

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Date: Fri, 19 Jan 2024 11:54:14 +0100
From: Marco Elver <elver@...gle.com>
To: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
Cc: andreyknvl@...gle.com, glider@...gle.com, dvyukov@...gle.com, 
	eugenis@...gle.com, Oscar Salvador <osalvador@...e.de>, Vlastimil Babka <vbabka@...e.cz>, 
	Andrew Morton <akpm@...ux-foundation.org>, 
	Linux List Kernel Mailing <linux-kernel@...r.kernel.org>, 
	Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: regression/bisected commit 773688a6cb24b0b3c2ba40354d883348a2befa38
 make my system completely unusable under high load

On Fri, 19 Jan 2024 at 11:46, Mikhail Gavrilov
<mikhail.v.gavrilov@...il.com> wrote:
>
> Hi,
> I use a system with KASAN sanitizer everyday.
> Because I want to catch difficult-to-repeat bugs.
> And all worked fine until commit 773688a6cb24b0b3c2ba40354d883348a2befa38.
> After commit 773688a6cb24b0b3c2ba40354d883348a2befa38 all working
> jerky when I compile something.
> The sound is interrupted, the cursor moves jerkily if I try to do
> anything when all the cores are loaded.
>
> > git bisect bad
> 773688a6cb24b0b3c2ba40354d883348a2befa38 is the first bad commit
> commit 773688a6cb24b0b3c2ba40354d883348a2befa38
> Author: Andrey Konovalov <andreyknvl@...gle.com>
> Date:   Mon Nov 20 18:47:19 2023 +0100
>
>     kasan: use stack_depot_put for Generic mode
[...]
>  mm/kasan/common.c     |  3 ++-
>  mm/kasan/generic.c    | 22 ++++++++++++++++++----
>  mm/kasan/quarantine.c | 26 ++++++++++++++++++++------
>  3 files changed, 40 insertions(+), 11 deletions(-)
>
> I attached here my build .config and kernel log.
> Who could dig into it, please?

I was afraid this would happen - could you try this patch series:
https://lore.kernel.org/all/20240118110216.2539519-2-elver@google.com/

Thanks,
-- Marco