Re: Discussion: what would not blocking on btrfs look like?

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On Fri, Aug 23, 2019 at 1:17 PM Adam Williamson
<adamwill@xxxxxxxxxxxxxxxxx> wrote:

> So, there was recently a Thing where btrfs installs were broken, and
> this got accepted as a release blocker:

Summary: This bug was introduced and discovered in linux-next, it
started to affect Fedora 5.3.0-rc0 kernels in openqa tests, patch
appeared during rc1, and the patch was merged into 5.3.0-rc2. The bug
resulted in a somewhat transient deadlock which caused installs to
hang, but no corruption. The fix, 2 files changed, 12 insertions, 8
deletions (1/2 the insertions are comments).

How remarkable or interesting is this bug? And in particular, exactly
how much faster should it have been fixed in order to avoid worrying
about it being a blocker bug?

7/25 14:27 utc bug patch was submitted to linux-btrfs@
7/25 22:33 utc bug was first reported in Fedora bugzilla
7/26 19:20 utc I confirmed upstream's patch related to this bug with
upstream and updated the Fedora bug
7/26 22:50 utc I confirmed it was merged into rc2, and updated the Fedora bug

So in the context of status quo, where Btrfs is presented as an option
in the installer and if there are bugs they Beta blocking, how could
or should this have been fixed sooner? What about the handling should
have been different?

I note here that ext2 and ext3 are offered as file systems in
Custom/Advanced partitioning and in this sense have parity with Btrfs.
If this same bug occurred in ext2 or ext3 would or should that cause
discussion to drop them from the installer, even if the bug were fixed
within 24 hours of discovery and patch? What about vfat? That's
literally the only truly required filesystem that must work, for the
most commonly supported hardware so it can't be dropped, we'd just be
stuck until it got fixed. That work would have to be done upstream,

Chris Murphy

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