Re: ZFS in Buster

From	Dan <ganchya@gmail.com>
Newsgroups	linux.debian.devel, linux.debian.kernel
Subject	Re: ZFS in Buster
Date	2019-05-29 13:50 +0200
Message-ID	<y35fH-7Xe-1@gated-at.bofh.it> (permalink)
References	<y2Nsu-51T-3@gated-at.bofh.it> <y2Puj-6fO-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi Jonathan,

On Tue, May 28, 2019 at 8:50 PM Jonathan Carter <jcc@debian.org> wrote:
> On 2019/05/28 18:43, Dan wrote:
> > ZFS 0.8 has been released with lots of improvements, notably encryption.
>
> Yep, it's an exciting feature.
>
> > Sadly the Linux Kernel has introduced a commit in kernel 4.19 and 5.0
> > that prevents ZFS from using SIMD. The result is that ZFS won't be
> > usable in Buster. See the following issue
> > https://github.com/zfsonlinux/zfs/issues/8793
>
> Buster ships zfs-dkms version 0.7.12-2 though, which works just fine on
> buster.

My message was not accurate. I think that the commit has been
introduced in in 4.19.38 (released 2019-05-02). I think that Debian
Buster uses 4.19.37

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.38

The commit also affects ZFS 0.7 because SIMD is used for checksum operations.

There might be a performance penalty in ZFS only if Debian Buster
upgrades to 4.19.38.

Best,
Daniel

Thread

ZFS in Buster Dan <ganchya@gmail.com> - 2019-05-28 18:50 +0200
  Re: ZFS in Buster Jonathan Carter <jcc@debian.org> - 2019-05-28 21:00 +0200
    Re: ZFS in Buster Ian Jackson <ijackson@chiark.greenend.org.uk> - 2019-05-28 22:30 +0200
      Re: ZFS in Buster Dan <ganchya@gmail.com> - 2019-05-28 23:30 +0200
      Re: ZFS in Buster Ansgar <ansgar@debian.org> - 2019-05-29 09:00 +0200
        Re: ZFS in Buster Ian Jackson <ijackson@chiark.greenend.org.uk> - 2019-05-29 15:00 +0200
          Re: ZFS in Buster Aron Xu <aron@debian.org> - 2019-05-29 15:50 +0200
            Re: ZFS in Buster Sam Hartman <leader@debian.org> - 2019-05-29 16:20 +0200
              Re: ZFS in Buster Mo Zhou <lumin@debian.org> - 2019-05-29 16:50 +0200
              Re: ZFS in Buster Sam Hartman <hartmans@debian.org> - 2019-05-29 17:00 +0200
    Re: ZFS in Buster Dan <ganchya@gmail.com> - 2019-05-29 13:50 +0200
      Re: ZFS in Buster Ben Hutchings <ben@decadent.org.uk> - 2019-05-29 16:00 +0200
        Re: ZFS in Buster Bastian Blank <waldi@debian.org> - 2019-06-06 16:30 +0200
          Re: ZFS in Buster Ondřej Surý <ondrej@sury.org> - 2019-06-06 17:20 +0200
            Re: ZFS in Buster Aron Xu <aron@debian.org> - 2019-06-06 20:10 +0200
              Re: ZFS in Buster Aron Xu <aron@debian.org> - 2019-06-08 11:00 +0200
                Re: ZFS in Buster Ondřej Surý <ondrej@sury.org> - 2019-06-08 11:40 +0200
                Re: ZFS in Buster Aron Xu <aron@debian.org> - 2019-06-08 12:20 +0200
                Re: ZFS in Buster Jeremy Stanley <fungi@yuggoth.org> - 2019-06-08 16:50 +0200
                Re: ZFS in Buster Sam Hartman <hartmans@debian.org> - 2019-06-08 19:10 +0200
                Re: ZFS in Buster Jeremy Stanley <fungi@yuggoth.org> - 2019-06-09 01:20 +0200
              Re: ZFS in Buster "Enrico Weigelt, metux IT consult" <lkml@metux.net> - 2019-07-01 21:10 +0200
                Re: ZFS in Buster "Enrico Weigelt, metux IT consult" <lkml@metux.net> - 2019-07-01 22:00 +0200
                Re: ZFS in Buster Sam Hartman <hartmans@debian.org> - 2019-07-01 22:20 +0200
            Re: ZFS in Buster Mo Zhou <lumin@debian.org> - 2019-06-10 10:30 +0200
    Re: ZFS in Buster Mo Zhou <lumin@debian.org> - 2019-06-03 16:50 +0200
      Re: ZFS in Buster Mo Zhou <lumin@debian.org> - 2019-06-03 18:10 +0200
        Re: ZFS in Buster Ian Jackson <ijackson@chiark.greenend.org.uk> - 2019-06-04 15:20 +0200
          Re: ZFS in Buster Sam Hartman <hartmans@debian.org> - 2019-06-04 17:00 +0200
            Re: ZFS in Buster Ian Jackson <ijackson@chiark.greenend.org.uk> - 2019-06-04 17:40 +0200
      Re: ZFS in Buster Dan <ganchya@gmail.com> - 2019-06-03 20:40 +0200
        Re: ZFS in Buster Sam Hartman <hartmans@debian.org> - 2019-06-03 20:50 +0200
  Re: ZFS in Buster "Enrico Weigelt, metux IT consult" <lkml@metux.net> - 2019-05-29 13:10 +0200
  Re: ZFS in Buster "Theodore Ts'o" <tytso@mit.edu> - 2019-06-02 04:20 +0200

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