Bug#929557: linux: restore __kernel_fpu needed for zfs for AES-NI/AVX support [mainline not in debian yet]

From	Chris Zubrzycki <debian@mid-earth.net>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#929557: linux: restore __kernel_fpu needed for zfs for AES-NI/AVX support [mainline not in debian yet]
Date	2019-05-26 04:20 +0200
Message-ID	<y1QVr-2t6-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Source: linux
Severity: wishlist
Tags: upstream patch

Dear Maintainer,

GKH has been purging __kernel_fpu_{begin,end}() from all kernels
including LTS (4.19/5) and it's needed for AES-NI/AVX support in the zfs
package. If this commit makes it to debian it will break all older zfs
releases and will cause very high cpu and terrible speed with encrypted
zfs pools. Arch Linux has already reverted the offending commit in their
distro. Patch available at
https://raw.githubusercontent.com/Mic92/nixpkgs/7b77c27caa8617c82df5c5af6b9ce6ae010d7f9a/pkgs/os-specific/linux/kernel/export_kernel_fpu_functions.patch

Thank you!

-- System Information:
Debian Release: 9.9
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-0.bpo.4-amd64 (SMP w/32 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)




-chris zubrzycki
- --
PGP ID: 0xA2ABC070
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Bug#929557: linux: restore __kernel_fpu needed for zfs for AES-NI/AVX support [mainline not in debian yet] Chris Zubrzycki <debian@mid-earth.net> - 2019-05-26 04:20 +0200
  Bug#929557: linux: restore __kernel_fpu needed for zfs for AES-NI/AVX support [mainline not in debian yet] Bastian Blank <bblank@thinkmo.de> - 2019-05-26 14:10 +0200
    Bug#929557: linux: restore __kernel_fpu needed for zfs for AES-NI/AVX support [mainline not in debian yet] Ben Hutchings <ben@decadent.org.uk> - 2019-05-26 19:00 +0200
  Processed: Re: Bug#929557: linux: restore __kernel_fpu needed for  zfs for AES-NI/AVX support [mainline not in debian yet] "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-05-26 19:00 +0200
  Bug#929557: Please revert LTS kernel change that will break ZFS for Buster point releases Mo Zhou <lumin@debian.org> - 2019-06-04 03:50 +0200
  Processed: Re: Bug#929557: Please revert LTS kernel change that  will break ZFS for Buster point releases "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-06-04 04:50 +0200
  Bug#929557: additional point of view Geert Stappers <stappers@stappers.nl> - 2019-06-04 07:30 +0200
  Bug#929557: Some Thoughts Sam Hartman <hartmans@debian.org> - 2019-06-06 18:30 +0200
  Bug#929557: Some Thoughts Chris Zubrzycki <debian@mid-earth.net> - 2019-06-18 00:30 +0200

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