Re: cvs update hangs 'amd' in tstile when 'firefox' is running

[christos%astron.com@localhost (Christos Zoulas)]

In article <Pine.NEB.4.64.1602101127560.1432%david.technoskunk.fur@localhost>,
John D. Baker <jdbaker%mylinuxisp.com@localhost> wrote:
>On Wed, 10 Feb 2016 16:08:10 +0000 (UTC), christos%astron.com@localhost (Christos
>Zoulas) wrote:
>
>ksh: pid 557 proc c1c6a87c vmspace/map c1903778 flags 4000

    Ksh tries to open a file and gets stuck in genfs_lock.

>df: pid 4402 proc c18b9008 vmspace/map c19039f4 flags 4000

    Df tries to stat the filesystem and is stuck in vfs_busy.

>firefox: pid 418 proc c18b91b8 vmspace/map c19030d8 flags 4001

    Firefox tries to open a file and gets stuck in genfs_lock.

>firefox: pid 418 proc c18b91b8 vmspace/map c19030d8 flags 4001

    Firefox tries to creat a file on nfs and is stuck in vfs_busy.

    We don't really care much about sync, and other crap that happens during
    shutdown

>amd: pid 5064 proc c1852004 vmspace/map c19034fc flags 0

    Amd is trying to unmount a filesystem and is stuck in genfs_lock

And the million $ question is:

Is amd trying to unmount because of the shutdown, or because of the
periodic mount timeout? If the second, do we have a locking race
during unmount?

Unfortunately looks like you'll have to reboot and redo the test to
answer this.

christos