[lustre-devel] [EXTERNAL] mke2fs supported features: dirdata

[Patrick Farrell]

These days, the kernel patches make some fixes of note and improve our ability to support T10PI.  It would be good to sort out having them - you might get an unpleasant surprise without them - but it should basically work.

-Patrick
________________________________
From: lustre-devel <lustre-devel-bounces at lists.lustre.org> on behalf of Else Someone <else at someonex.net>
Sent: Tuesday, November 12, 2024 4:56 PM
To: Mohr, Rick <mohrrf at ornl.gov>; lustre-devel at lists.lustre.org <lustre-devel at lists.lustre.org>
Subject: Re: [lustre-devel] [EXTERNAL] mke2fs supported features: dirdata

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Hi, thanks all, it was sloppy of me to miss this section in the manual.
I'll keep this note brief: my current progress is that I reproduced, for
the most part, the 3-node KVM set-up from the wiki using declarative
"nixos tests". I'm currently not applying `lustre/kernel_patches`, not
sure what are the implications. Hope to follow up with public code soon.


Cheers


On 12/11/2024 21.45, Mohr, Rick wrote:
> E2fsprogs does require some patches.  Whamcloud's site has patched versions available for download:
>
> https://downloads.whamcloud.com/public/e2fsprogs/
>
> --Rick
>
>
> On 11/9/24, 8:09 PM, "lustre-devel on behalf of Else Someone" <lustre-devel-bounces at lists.lustre.org <mailto:lustre-devel-bounces at lists.lustre.org> on behalf of else at someonex.net <mailto:else at someonex.net>> wrote:
>
>
> Hello again! I posted here earlier about my attempts at building Lustre
> with Nix. There was another issue I was struggling with, related to
> e2fsprogs, that I thought I should ask here if I was supposed to patch
> it too?
>
>
>
>
> My mkfs.lustre (ldiskfs) is failing with mke2fs complaining about an
> "incompatible option set". Specifically it's complaining about the
> option `dirdata`. Looking at e2fsprogs' sources,
> `EXT4_FEATURE_INCOMPAT_DIRDATA` isn't listed in `ok_features` in
> `misc/mke2fs.c`. Even if I add it there, mke2fs fails later at
> `ext2fs_initialize`. I was surprised not to find any error reports in
> jira concerning dirdata specifically (there were similar errors reported
> for e.g. large_dir), surely I must be doing something wrong.
>
>
>
>
> Do I have to patch e2fsprogs?
>
>
>
>
> Do tell me if I'm being too noisy or if there's a better channel for
> this sort of questions. I actually have a few more, should I ask each in
> a separate thread or should I aggregate all under one SUBJECT?
>
>
>
>
> Thanks
>
>
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