linux-kernel - Re: [tip: x86/core] zstd: Increase DYNAMIC_BMI2 GCC version cutoff from 4.8 to 11.0 to work around compiler segfault

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Message-ID: <Z95qekGt2GHnph01@gmail.com>
Date: Sat, 22 Mar 2025 08:44:58 +0100
From: Ingo Molnar <mingo@...nel.org>
To: Borislav Petkov <bp@...en8.de>
Cc: linux-kernel@...r.kernel.org, Nick Terrell <terrelln@...com>,
	linux-tip-commits@...r.kernel.org,
	Michael Kelley <mhklinux@...look.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>, x86@...nel.org
Subject: Re: [tip: x86/core] zstd: Increase DYNAMIC_BMI2 GCC version cutoff
 from 4.8 to 11.0 to work around compiler segfault


* Borislav Petkov <bp@...en8.de> wrote:

> (cleanup the botched CC: line :))
> 
> + Nick.
> 
> Interesting - we were looking at a similar issue recently:
> 
> https://lore.kernel.org/r/20250317135539.GDZ9gp24DhTKBGmkd8@fat_crate.local
> 
> and upgrading my toolchain fixed it.

Applying the ZSTD version quirk would likely also fix it under the 
original compiler version (GCC 10.3.0).

Thanks,

	Ingo