linux-kernel - Re: [linux-next][bock] WARNING: CPU: 22 PID: 0 at block/blk-core.c:2655 .blk_update

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Message-ID: <20170509090316.GA2378@lst.de>
Date:   Tue, 9 May 2017 11:03:16 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Abdul Haleem <abdhalee@...ux.vnet.ibm.com>,
        linux-block <linux-block@...r.kernel.org>,
        sachinp <sachinp@...ux.vnet.ibm.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [linux-next][bock] WARNING: CPU: 22 PID: 0 at
        block/blk-core.c:2655 .blk_update_request+0x4f8/0x500

On Mon, May 08, 2017 at 08:00:41AM -0600, Jens Axboe wrote:
> Christoph, Martin - any ideas? Trace from Abdul below.

Btw, what page size does the system have?

> 
> WARNING: CPU: 12 PID: 0 at block/blk-core.c:2651 .blk_update_request+0x4cc/0x4e0

Any knowledge from tracing or printk on what command is complete?
Both req_op type and SCSI command?