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From: "Matias Bjørling" <m@bjorling.me>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>,
	Ming Lei <tom.leiming@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>,
	Huang Ying <ying.huang@intel.com>, Jens Axboe <axboe@kernel.dk>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: changes caused by 0d11e6ac("blk-mq: fix use-after-free of request")
Date: Wed, 18 Dec 2013 11:29:30 +0100	[thread overview]
Message-ID: <52B1790A.5070105@bjorling.me> (raw)
In-Reply-To: <20131218085007.GP31783@yliu-dev.sh.intel.com>

On 12/18/2013 09:50 AM, Yuanhan Liu wrote:
> Hi,
>
> FYI, we noticed some changes caused by 0d11e6ac("blk-mq: fix use-after-free of request"):
>

The blk-mq accounting was faulty up to that commit. We should compare 
the blk-mq with the previous block layer.

Could you try to revert the following patches:

f02b9ac virtio-blk: virtqueue_kick() must be ordered with other...
1cf7e9c virtio_blk: blk-mq support

and compare the two runs (upto 0d11e6ac applied, and the same, with the 
two patches reverted)

Thanks

<snip>

  reply	other threads:[~2013-12-18 10:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-18  8:50 Yuanhan Liu
2013-12-18 10:29 ` Matias Bjørling [this message]
2013-12-19 14:37   ` Yuanhan Liu

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