From: "Johannes Nixdorf" <mixi@shadowice.org>
To: <linux-arm-kernel@lists.infradead.org>
Subject: [BUG] dm-crypt broken after 2632e2521769 ("arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD")
Date: Thu, 16 May 2024 18:22:05 +0200 [thread overview]
Message-ID: <D1B7GPIR9K1E.5JFV37G0YTIF@shadowice.org> (raw)
I noticed frequent FS corruption on my M1 MacBook running Linux after
the Asahi Linux Kernel was updated to 6.9.x (from 6.6.x).
A git bisect pointed me to 2632e2521769 ("arm64: fpsimd: Implement lazy
restore for kernel mode FPSIMD").
This was reproduced with fio's examples/basic-verify.fio (1GB of writing
was not reliably, 10GB triggered it reliably) on vanilla kernels and
happens on any storage backend behind dm-crypt.
I was advised to report it here on IRC.
This was independently described in [1].
Regards,
Johannes Nixdorf
[1]: https://github.com/tpwrules/nixos-apple-silicon/issues/200
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next reply other threads:[~2024-05-16 16:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-16 16:22 Johannes Nixdorf [this message]
2024-05-16 16:25 ` [BUG] dm-crypt broken after 2632e2521769 ("arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD") Marc Zyngier
2024-05-16 17:16 ` Dave Martin
2024-05-16 17:17 ` Ard Biesheuvel
2024-05-17 11:37 ` Will Deacon
2024-05-17 11:40 ` Mark Brown
2024-05-17 11:57 ` Mark Rutland
2024-05-16 17:34 ` Johannes Nixdorf
2024-05-21 6:22 ` Johannes Nixdorf
2024-05-21 8:55 ` Ard Biesheuvel
2024-05-21 12:56 ` Mark Brown
2024-05-21 18:34 ` Will Deacon
2024-05-21 18:44 ` Mark Brown
2024-05-21 18:57 ` Ard Biesheuvel
2024-05-21 20:06 ` Janne Grunau
2024-05-21 20:21 ` Mark Brown
2024-05-21 21:23 ` Janne Grunau
2024-05-22 11:14 ` Mark Brown
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