linux-kernel - Re: System hangs if NVMe/SSD is removed during suspend

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Date:   Thu, 3 Oct 2019 09:50:33 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        AceLan Kao <acelan.kao@...onical.com>,
        Jens Axboe <axboe@...nel.dk>, Jan Kara <jack@...e.cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: System hangs if NVMe/SSD is removed during suspend

Hello, Mika.

On Wed, Oct 02, 2019 at 03:21:36PM +0300, Mika Westerberg wrote:
> but from that discussion I don't see more generic solution to be
> implemented.
> 
> Any ideas we should fix this properly?

Yeah, the only fix I can think of is not using freezable wq.  It's
just not a good idea and not all that difficult to avoid using.

Thanks.

-- 
tejun