Re: btrfs loses 32-bit application compatibility after a while

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* Chris Murphy:

> On Thu, Jul 20, 2023, at 11:55 AM, Florian Weimer wrote:
>> * Demi Marie Obenour:
>>
>>> From this thread, it appears that non-LFS 32-bit software is fundamentally
>>> unsupportable in the long run, just like software with 32-bit time_t is
>>> unsupportable.  That leaves two options:
>>>
>>> 1. Break the ABI, preferably in such a way that causes non-LFS
>>>    code to fail at load time rather than crashing.
>>>
>>> 2. Drop 32-bit support from the distribution altogether.
>>>
>>> It looks like trying to keep 32-bit non-LFS software working will be an
>>> endless time sink and is not sustainable in the long term.
>>
>> My impression is different.  It's btrfs that is a poor choice for people
>> who want to run 32-bit software, have a lot of file creations/deletions,
>> and do not want to reformat and reinstall periodically.  The situation
>> with XFS, for example, is different because you can supply the inode32
>> mount option and get 32-bit applications going again, maybe after making
>> in-place copies of a few files.
>
> It should be straightforward to have mock create a subvolume for each
> chroot instead of a directory. Subvolumes have their own inode pool.

Yes, for mock, because of its temporary chroots.  I'm more worried about
those who encounter the issue with their home directories.

Thanks,
Florian
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