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: <92ef1aae-90b5-f14f-390e-bfab97899431@de.ibm.com>
Date:   Thu, 23 Nov 2017 19:59:55 +0100
From:   Christian Borntraeger <borntraeger@...ibm.com>
To:     Christoph Hellwig <hch@....de>
Cc:     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 11/23/2017 07:32 PM, Christoph Hellwig wrote:
> 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?


Hmm, I get further in boot, but the system seems very sluggish and it does not
seem to be able to access the scsi disks (get data from them)