[Bug 210723] [Bug report] overlayfs over xfs whiteout operation may cause deadlock

[Bug 210723] [Bug report] overlayfs over xfs whiteout operation may cause deadlock

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210723

--- Comment #1 from Dave (chiluk@ubuntu.com) ---
Has there been any progress on this?  We've been regularly hitting what appears
to be an xfs deadlock on 5.8, 5.9, and now 5.10 on our kubernetes nodes that
also employ containers and overlayfs.  I haven't been able to do as much
digging as wenli yet so I don't have any more detailed information.

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Re: [Bug 210723] [Bug report] overlayfs over xfs whiteout operation may cause deadlock

[Brian Foster]

On Mon, Jan 04, 2021 at 03:09:23PM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=210723
> 
> --- Comment #1 from Dave (chiluk@ubuntu.com) ---
> Has there been any progress on this?  We've been regularly hitting what appears
> to be an xfs deadlock on 5.8, 5.9, and now 5.10 on our kubernetes nodes that
> also employ containers and overlayfs.  I haven't been able to do as much
> digging as wenli yet so I don't have any more detailed information.
> 

For whatever reason this bug report has not been synced between bugzilla
and the mailing list. I don't see the initial report on the list at all
and the subsequent replies to the initial thread appear on the list and
not in the bz.

In any event, I believe Darrick root caused and Wenli confirmed a fix
here:

https://lore.kernel.org/linux-xfs/20201217211117.GF38809@magnolia/

... which presumably just needs to be posted/reviewed as a proper patch.

Brian

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> You may reply to this email to add a comment.
> 
> You are receiving this mail because:
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[Bug 210723] [Bug report] overlayfs over xfs whiteout operation may cause deadlock

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210723

--- Comment #2 from bfoster@redhat.com ---
On Mon, Jan 04, 2021 at 03:09:23PM +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=210723
> 
> --- Comment #1 from Dave (chiluk@ubuntu.com) ---
> Has there been any progress on this?  We've been regularly hitting what
> appears
> to be an xfs deadlock on 5.8, 5.9, and now 5.10 on our kubernetes nodes that
> also employ containers and overlayfs.  I haven't been able to do as much
> digging as wenli yet so I don't have any more detailed information.
> 

For whatever reason this bug report has not been synced between bugzilla
and the mailing list. I don't see the initial report on the list at all
and the subsequent replies to the initial thread appear on the list and
not in the bz.

In any event, I believe Darrick root caused and Wenli confirmed a fix
here:

https://lore.kernel.org/linux-xfs/20201217211117.GF38809@magnolia/

... which presumably just needs to be posted/reviewed as a proper patch.

Brian

> -- 
> You may reply to this email to add a comment.
> 
> You are receiving this mail because:
> You are watching the assignee of the bug.
>

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