linux-kernel - Re: [PATCH v6] NVMe: conversion to blk-mq

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Date:	Mon, 9 Jun 2014 12:35:48 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	Matias Bjørling <m@...rling.me>
Cc:	willy@...ux.intel.com, keith.busch@...el.com, sbradshaw@...ron.com,
	axboe@...com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-nvme@...ts.infradead.org
Subject: Re: [PATCH v6] NVMe: conversion to blk-mq

On Fri, Jun 6, 2014 at 8:20 PM, Matias Bjørling <m@...rling.me> wrote:
> This converts the current NVMe driver to utilize the blk-mq layer.

Looks it can't be applied cleanly against 3.15-rc8 + Jens's for-linux
branch, when I fix the conflict manually, below failure is triggered:

[  487.696057] nvme 0000:00:07.0: Cancelling I/O 202 QID 1
[  487.699005] nvme 0000:00:07.0: Aborting I/O 202 QID 1
[  487.704074] nvme 0000:00:07.0: Cancelling I/O 202 QID 1
[  487.717881] nvme 0000:00:07.0: Aborting I/O 202 QID 1
[  487.736093] end_request: I/O error, dev nvme0n1, sector 91532352
[  487.747378] nvme 0000:00:07.0: completed id 0 twice on queue 0


when running fio randread(libaio, iodepth:64) with more than 3 jobs.

And looks no such failure when jobs is 1 or 2.

Thanks,
--
Ming Lei
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