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From: Petr Vorel <pvorel@suse.cz>
To: Martin Doucha <mdoucha@suse.cz>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH] cve-2015-3290: Bump up stack boundary requirement
Date: Fri, 4 Apr 2025 16:00:28 +0200	[thread overview]
Message-ID: <20250404140028.GA533593@pevik> (raw)
In-Reply-To: <bf93add4-f125-480a-8f13-3f5c9660703d@suse.cz>

Hi Siddhesh, Martin,

Siddhesh, I was not aware -mpreferred-stack-boundary is not supported on all archs:
powerpc64le-linux-gnu-gcc: error: unrecognized command-line option '-mpreferred-stack-boundary=5'

But it's even not supported on clang:
clang: error: unknown argument: '-mpreferred-stack-boundary=5'

You need to use -mstack-alignment.

All failures:
https://github.com/pevik/ltp/actions/runs/14243227637/job/39917780931

Good thing is that value 5 is supported on all gcc versions we use.
If clang works as well, we need just detect the compiler.
Maybe it'd be easiest to test with AX_CHECK_COMPILE_FLAG.

Ideally create LTP fork, enable github actions and test yourself before posting.

> Hello,
> I've tested the new compile options with a buggy kernel and the test can
> still reproduce the issue.

Martin, thanks for testing. I'm sorry to waste your time.

Kind regards,
Petr

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

  reply	other threads:[~2025-04-04 14:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-02 17:07 [LTP] [PATCH] cve-2015-3290: Bump up stack boundary requirement Siddhesh Poyarekar
2025-04-03 15:07 ` Martin Doucha
2025-04-04 14:00   ` Petr Vorel [this message]
2025-04-04 14:20     ` Martin Doucha
2025-04-04 14:23       ` Siddhesh Poyarekar
2025-04-04 18:14 ` [LTP] [PATCH v2 0/2] cve-2015-3290: Disable AVX Siddhesh Poyarekar
2025-04-04 18:14   ` [LTP] [PATCH v2 1/2] cve-2015-3290: Disable AVX for x86_64 Siddhesh Poyarekar
2025-04-07  8:29     ` Martin Doucha
2025-04-07  9:18       ` Petr Vorel
2025-04-07 10:09         ` Siddhesh Poyarekar
2025-04-04 18:14   ` [LTP] [PATCH v2 2/2] Add centos10 to test matrix Siddhesh Poyarekar
2025-04-07 10:24 ` [LTP] [PATCH v3 0/2] cve-2015-3290: Disable AVX Siddhesh Poyarekar
2025-04-07 10:24   ` [LTP] [PATCH v3 1/2] cve-2015-3290: Disable AVX for x86_64 Siddhesh Poyarekar
2025-04-07 11:18     ` Petr Vorel
2025-04-07 10:24   ` [LTP] [PATCH v3 2/2] Add centos10 to test matrix Siddhesh Poyarekar
2025-04-07 11:13     ` Petr Vorel
2025-04-07 13:43       ` Siddhesh Poyarekar
2025-04-10  3:03         ` Li Wang via ltp
2025-04-10 14:50           ` Siddhesh Poyarekar

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