linux-kernel - BUG: workqueue lockup (after powerdown)

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Message-ID: <alpine.LRH.2.20.1707031031180.28253@math.ut.ee>
Date:   Mon, 3 Jul 2017 10:34:46 +0300 (EEST)
From:   Meelis Roos <mroos@...ux.ee>
To:     linux-parisc@...r.kernel.org,
        Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: BUG: workqueue lockup (after powerdown)

Today I tested 4.12 release on my RP3440 (HP parisc). It worked fine, 
then on shutdown I got this strange message from kernel after shutdown:

reboot: Power down
System shut down completed.
Please power this system off now.
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 40s!

and this continues with longer and longer times.

Is it something hppa specific or general?

-- 
Meelis Roos (mroos@...ux.ee)