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



On Fri, 2019-08-23 at 19:00 -0600, Chris Murphy wrote:
> On Fri, Aug 23, 2019 at 1:17 PM Adam Williamson
> <adamwill fedoraproject org> wrote:
> 
> > So, there was recently a Thing where btrfs installs were broken, and
> > this got accepted as a release blocker:
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=1733388
> 
> 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?

Nothing. The kernel team's concern is not related to this bug or the
handling of this bug in any way. The only relevance of the bug is that
it alerted the kernel team to the fact that we currently block on
btrfs, which they think we should not.

> 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,

You're misunderstanding here. It's not the fact that a bug showed up
which caused the concern.
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net
http://www.happyassassin.net


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