linux-kernel - Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

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Message-ID: <20171123183232.GA2845@lst.de>
Date:   Thu, 23 Nov 2017 19:32:32 +0100
From:   Christoph Hellwig <hch@....de>
To:     Christian Borntraeger <borntraeger@...ibm.com>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        Bart Van Assche <Bart.VanAssche@....com>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with
        virtio-blk (also 4.12 stable)

On Thu, Nov 23, 2017 at 07:28:31PM +0100, Christian Borntraeger wrote:
> zfcp on s390.

Ok, so it can't be the interrupt code, but probably is the blk-mq-cpumap.c
changes.  Can you try to revert just those for a quick test?