linux-kernel - Re: [PATCH] Revert "blk-mq: issue directly if hw queue isn't busy in case of 'none'"

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Message-ID: <211633e2-a812-d489-e11c-c3f271c465fc@kernel.dk>
Date:   Tue, 28 Aug 2018 09:48:56 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Ian W MORRISON <ianwmorrison@...il.com>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        kashyap.desai@...adcom.com, loberman@...hat.com, osandov@...com,
        hch@....de, bart.vanassche@....com, hare@...e.de,
        ming.lei@...hat.com
Subject: Re: [PATCH] Revert "blk-mq: issue directly if hw queue isn't busy in
 case of 'none'"

On 8/28/18 9:47 AM, Ian W MORRISON wrote:
> Kernel oops when booting on Bay and Cherry Trail devices
> such as Intel Compute Stick. Bisected as:
> 
> commit 6ce3dd6eec11 ("blk-mq: issue directly if hw queue isn't busy in case of 'none'")
> 
> This patch reverts the above commit.

Did I miss the posting of that oops? Just curious where this is
going wrong. Not adverse to reverting, but I'd like to try to
understand the issue first.

-- 
Jens Axboe