Re: ZFS in Buster

2019-07-01 Thread Sam Hartman
> "Enrico" == Enrico Weigelt, metux IT consult writes: Enrico> On 01.07.19 21:06, Enrico Weigelt, metux IT consult wrote: Enrico> Hi, >> IIRC the whole things is actually about crypto stuff. Why don't >> zfs> folks just use the standard linux crypto api (potentially >>

Re: ZFS in Buster

2019-07-01 Thread Enrico Weigelt, metux IT consult
On 01.07.19 21:06, Enrico Weigelt, metux IT consult wrote: Hi, > IIRC the whole things is actually about crypto stuff. Why don't zfs> folks > just use the standard linux crypto api (potentially introduce a> new algo if the existing ones aren't sufficient) ? Addendum: just had a quick scan

Re: ZFS in Buster

2019-07-01 Thread Enrico Weigelt, metux IT consult
On 07.06.19 10:16, Philipp Kern wrote: Hi, > This would not be the case here. But crippling the performance would be> > indeed an option, even though this would make Debian much less relevant> for ZFS deployments and people would just go and use Ubuntu instead. Is it really necessary to to have

Re: ZFS in Buster

2019-06-10 Thread Mo Zhou
nnot make the ZoL in Buster safe for our users it needs to be >> removed from the release > > My understanding is that the issue is only affecting the performance of > the encryption part of ZFS, right? If so, I don't see why we should > remove ZFS from Buster, if ZFS continues to work

Re: ZFS in Buster

2019-06-09 Thread Thomas Goirand
S from Buster, if ZFS continues to work perfectly, as long as one doesn't use the encryption feature. Some warning lines in the release notes, explicitly telling we recommend against using ZFS encryption would IMO be enough. Please let me know if I'm wrong. Cheers, Thomas Goirand (zigo)

Re: ZFS in Buster

2019-06-08 Thread Jeremy Stanley
[No need to Cc an extra copy, I've been a d-d subscriber since... the 1990s?] On 2019-06-08 13:00:02 -0400 (-0400), Sam Hartman wrote: > Jeremy Stanley writes: > > Your earlier message also implied the motives behind > > Conservancy's recommendations to be something other than a > > desire to

Re: ZFS in Buster

2019-06-08 Thread Sam Hartman
> "Jeremy" == Jeremy Stanley writes: Jeremy> Your earlier message also implied the motives behind Jeremy> Conservancy's recommendations to be something other than a Jeremy> desire to protect projects relying on free/libre open source Jeremy> software licenses from making

Re: ZFS in Buster

2019-06-08 Thread Jeremy Stanley
On 2019-06-08 18:11:28 +0800 (+0800), Aron Xu wrote: > On Sat, Jun 8, 2019 at 5:33 PM Ondřej Surý wrote: > > On 8 Jun 2019, at 10:56, Aron Xu wrote: > > > Even further, it's distributed in the form of dkms source and > > > theoretically not in Debian (contrib) to save people of > > > Software

Re: ZFS in Buster

2019-06-08 Thread Aron Xu
On Sat, Jun 8, 2019 at 5:33 PM Ondřej Surý wrote: > > > > On 8 Jun 2019, at 10:56, Aron Xu wrote: > > > > Even further, it's distributed in > > the form of dkms source and theoretically not in Debian (contrib) to > > save people of Software Freedom Conservancy from being upset about > > losing

Re: ZFS in Buster

2019-06-08 Thread Ondřej Surý
> On 8 Jun 2019, at 10:56, Aron Xu wrote: > > Even further, it's distributed in > the form of dkms source and theoretically not in Debian (contrib) to > save people of Software Freedom Conservancy from being upset about > losing their position of Linux GPL enforcement. I don’t care much about

Re: ZFS in Buster

2019-06-08 Thread Aron Xu
On Fri, Jun 7, 2019 at 4:16 PM Philipp Kern wrote: > > On 6/6/2019 8:09 PM, Aron Xu wrote: > > Key interest in the thread is getting some insights about how to deal > > with the awkward situation that affects ZFS experience dramatically - > > Linux will remove those symbols in LTS kernel release,

Re: ZFS in Buster

2019-06-07 Thread Philipp Kern
On 6/6/2019 8:09 PM, Aron Xu wrote: > Key interest in the thread is getting some insights about how to deal > with the awkward situation that affects ZFS experience dramatically - > Linux will remove those symbols in LTS kernel release, although > in-kernel symbols are never promised to be stable.

Re: ZFS in Buster

2019-06-06 Thread Aron Xu
On Thu, Jun 6, 2019 at 11:16 PM Ondřej Surý wrote: > > Hey all, > > I understand the woes on all sides, but I believe the correct “Debian" way > would be to drop ZoL from Buster release. Of course we can wait until it > breaks after Linux kernel upgrade, but I would say it’s better to prevent

Re: ZFS in Buster

2019-06-06 Thread Ondřej Surý
Hey all, I understand the woes on all sides, but I believe the correct “Debian" way would be to drop ZoL from Buster release. Of course we can wait until it breaks after Linux kernel upgrade, but I would say it’s better to prevent the dance around removing the package from the buster and just

Re: ZFS in Buster

2019-06-06 Thread Bastian Blank
Hi Zigo On Thu, Jun 06, 2019 at 02:43:16PM +0200, Thomas Goirand wrote: > In such case, would you consider maintaining this tiny patch? > https://github.com/NixOS/nixpkgs/pull/61076/commits/7b77c27caa8617c82df5c5af6b9ce6ae010d7f9a Please read https://bugs.debian.org/929557. Thanks for following

Re: ZFS in Buster

2019-06-06 Thread Thomas Goirand
On 5/29/19 3:52 PM, Ben Hutchings wrote: > On Wed, 2019-05-29 at 13:43 +0200, Dan wrote: >> 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. > > Which we will, some time

Re: ZFS in Buster

2019-06-04 Thread Ian Jackson
Sam Hartman writes ("Re: ZFS in Buster"): > Ian, the zfs maintainers have definitely been working in good faith ... > There has been no hiding here. OK, good. Thank you. I am very glad to hear that I got the wrong end of the stick. I wrote that mail yesterday so I could sleep

Re: ZFS in Buster

2019-06-04 Thread Sam Hartman
In our code of conduct we all made a commitment to start by assuming good faith of of our community. I'd like to remind us all to do that. Ian, the zfs maintainers have definitely been working in good faith. There was an unblock request filed May 9 attempting to address this issue. If you had

Re: ZFS in Buster

2019-06-04 Thread Ian Jackson
Mo Zhou writes ("Re: ZFS in Buster"): > I made a mistake at this point. There is no SIMD bug in zfs > 0.7.12-2. The true bug lies in the stable kernel update that > breaks stuff. We debian ZoL maintainers decided to do nothing > before the Buster release, and file an RC bu

Please revert LTS kernel change that will break ZFS for Buster point releases

2019-06-03 Thread Mo Zhou
control: severity -1 grave Dear kernel maintainers, Buster will be released with 4.19.37 kernel. That's fine and it doesn't break ZFS. However, the changes introduced in 4.19.38 and linux 5.0 break ZFS. That means the current 0.7.12-2 will fail to build everywhere after the first Buster point

Re: ZFS in Buster

2019-06-03 Thread Sam Hartman
Hi. Thanks for bringing up this issue originally. I think it has started some good discussion with the Debian zfs maintainers. However, I think this particular subthread about zfs has served its purpose. I cannot find anything in your message that is on topic for the debian-devel mailing list.

Re: ZFS in Buster

2019-06-03 Thread Dan
Hi Mo and Theodore, On Sun, Jun 2, 2019 at 4:04 AM Theodore Ts'o wrote: > Also, it's not accurate that "linux developers didn't accept". Ryan > sent a query to Linus, and Linus didn't respond. I don't know if he > sent a single message, or whether he retried a couple of times. A > failure to

Re: ZFS in Buster

2019-06-03 Thread Mo Zhou
Hi, On 2019-06-03 14:47, Mo Zhou wrote: > It seems that persuading the kernel team to patch the kernel > specifically for ZFS is impossible -- that's an dead end. I made a mistake at this point. There is no SIMD bug in zfs 0.7.12-2. The true bug lies in the stable kernel update that breaks

Re: ZFS in Buster

2019-06-03 Thread Mo Zhou
s 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 f

Re: ZFS in Buster

2019-06-01 Thread Theodore Ts'o
On Tue, May 28, 2019 at 06:43:55PM +0200, Dan wrote: > > The ZFS developers proposed the Linux developers to rewrite the whole > ZFS code and use GPL, but surprisingly the linux developers didn't > accept. See below: > https://github.com/zfsonlinux/zfs/issues/8314 I've read the thread, and there

Re: ZFS in Buster

2019-05-29 Thread Sam Hartman
> "Sam" == Sam Hartman writes: ke the Software Freedom Conservancy (SFC)'s Sam> position Sam> https://sfconservancy.org/blog/2016/feb/25/zfs-and-linux/-UUU:**--F1 Sam> *unsent wide reply to Aron Xu* Bot L50 (Message SC:f MML Abbre Ah, that's an interesting artifact of how cut

Re: ZFS in Buster

2019-05-29 Thread Mo Zhou
Hi, With my Debian ZoL maintainer hat + FTP trainee hat on, I didn't wish to jump into this topic too early without a in-depth investigation... On 2019-05-29 14:14, Sam Hartman wrote: > And if you take the Software Freedom Conservancy (SFC)'s position >

Re: ZFS in Buster

2019-05-29 Thread Sam Hartman
I hope that we do not choose to open the zfs discussion at this time. If it does get opened, I think my approach would be to try and educate the community about the various different viewpoints, find text for GRs that would allow key stakeholders to believe their positions were respected and

Re: ZFS in Buster

2019-05-29 Thread Ben Hutchings
n 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/i

Re: ZFS in Buster

2019-05-29 Thread Aron Xu
On Wed, May 29, 2019 at 8:55 PM Ian Jackson wrote: > > Ansgar writes ("Re: ZFS in Buster"): > > Ian Jackson writes: > > > I think this would be both unwise legally (without seeking additional > > > legal advice) and rather rude to the kernel upstream whose

Re: ZFS in Buster

2019-05-29 Thread Ian Jackson
Ansgar writes ("Re: ZFS in Buster"): > Ian Jackson writes: > > I think this would be both unwise legally (without seeking additional > > legal advice) and rather rude to the kernel upstream whose code is > > then being reused without permission - indeed, contrary

Re: ZFS in Buster

2019-05-29 Thread Dan
t 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. M

Re: ZFS in Buster

2019-05-29 Thread Enrico Weigelt, metux IT consult
On 28.05.19 18:43, Dan wrote: > 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 We recently had this discussion on

Re: ZFS in Buster

2019-05-29 Thread Ansgar
Ian Jackson writes: >> > Would it be possible to provide an alternative patched linux kernel >> > that works with ZFS? > > I think this would be both unwise legally (without seeking additional > legal advice) and rather rude to the kernel upstream whose code is > then being reused without

Re: ZFS in Buster

2019-05-28 Thread Dan
Hi Ian and Jonathan, On Tue, May 28, 2019 at 10:26 PM Ian Jackson wrote: > > I think this would be both unwise legally (without seeking additional > legal advice) and rather rude to the kernel upstream whose code is > then being reused without permission - indeed, contrary to their > explicitly

Re: ZFS in Buster

2019-05-28 Thread Ian Jackson
Jonathan Carter writes ("Re: ZFS in Buster"): > 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

Re: ZFS in Buster

2019-05-28 Thread Jonathan Carter
> 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. > NixOS reverted that particular commit: > https://www.phoronix.com/scan.php?page=news_item=NixOS-Linux-5.0-ZFS

ZFS in Buster

2019-05-28 Thread Dan
Dear Debian developers, ZFS 0.8 has been released with lots of improvements, notably encryption. 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