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From: Chris Murphy <>
To: Amir Goldstein <>
Cc: Chris Murphy <>,
	Miklos Szeredi <>,
	overlayfs <>
Subject: Re: btrfs+overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off.
Date: Sun, 11 Apr 2021 00:05:20 -0600	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Sat, Apr 10, 2021 at 11:12 PM Amir Goldstein <> wrote:

> Now I'm confused again.

So am I, and in retrospect I've posted here prematurely.

> Your reports starts by stating:
> "The primary problem is Bolt (Thunderbolt 3) tests that are
> experiencing a regression when run in a container using overlayfs,"
> But you say that the problem exists with kernel 5.9.
> When you say "regression" above, what are you referring to?

Overlayfs. Now that I've tested 5.9, I'm not so sure it's a kernel regression.

> Did those tests pass in a previous Bolt version?
> Did those tests ever pass in a container using overlayfs?

Yes and yes.

> There is surely a bug in overlayfs, but it's hard to find it without
> minimal bisection info. I'll keep looking.
> If it's a regression with newer distro, please try to understand
> from distro/package managers, what has changed in the container
> setup and kernel config w.r.t a container using overlayfs.

Exactly. The original report of the problem is Alpine linux, but I
can't reproduce it on Fedora except with podman using an Alpine image
base. As all the other suspects have fallen apart, what remains
untested for regressions is this.

Chris Murphy

  reply	other threads:[~2021-04-11  6:05 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09 22:03 btrfs+overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off Chris Murphy
2021-04-10  8:03 ` Amir Goldstein
2021-04-10 17:36   ` Chris Murphy
2021-04-10 17:55     ` Amir Goldstein
2021-04-10 19:36       ` Chris Murphy
2021-04-10 19:42         ` Chris Murphy
2021-04-10 19:43           ` Chris Murphy
2021-04-10 19:44             ` Chris Murphy
2021-04-10 20:03               ` Chris Murphy
2021-04-11  5:12                 ` Amir Goldstein
2021-04-11  6:05                   ` Chris Murphy [this message]
2021-04-11  7:28                     ` Amir Goldstein
2021-04-13 21:50                       ` Chris Murphy
2021-04-12  8:41       ` Miklos Szeredi

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