Re: [PATCH v3 0/4] gcov: use -fprofile-update=atomic globally to fix concurrent access crashes on GCOV-enabled kernels

[Konstantin Khorenko]

On 4/2/26 03:46, Jakub Kicinski wrote:
> On Wed,  1 Apr 2026 17:20:16 +0300 Konstantin Khorenko wrote:
> > 1. Build fix for CONFIG_GCOV_PROFILE_ALL=y - skb_ext_total_length()
> >     BUILD_BUG_ON failure:
> >     https://lore.kernel.org/lkml/20260331165125.959833-1-khorenko@xxxxxxxxxxxxx/T/#t
> >
> > 2. Runtime crash fix for zlib inflate_fast() - GCOV counter merging
> >     with loop induction variables caused out-of-bounds writes on SMP:
> >     https://lore.kernel.org/lkml/20260330143256.306326-1-khorenko@xxxxxxxxxxxxx/T/#t
>
> Why are you merging these? The should go via different subsystems.
> How do you expect this series to be applied?

You are definitely right, Jakub.

i will create 3 different threads and note explicitly that the last commit should be applied only 
after first 2 series are merged.

Will do right now!

--
Konstantin Khorenko