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From: Christoph Hellwig <hch@lst.de>
To: Bob Liu <bob.liu@oracle.com>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org, hare@suse.com,
	ming.lei@redhat.com, bvanassche@acm.org, hch@lst.de,
	martin.petersen@oracle.com, jinpuwang@gmail.com,
	rpenyaev@suse.de, Roman Pen <roman.penyaev@profitbricks.com>
Subject: Re: [RESEND PATCH v4] blk-mq: fix hang caused by freeze/unfreeze sequence
Date: Tue, 21 May 2019 09:04:52 +0200	[thread overview]
Message-ID: <20190521070452.GA30803@lst.de> (raw)
In-Reply-To: <20190521032555.31993-1-bob.liu@oracle.com>

On Tue, May 21, 2019 at 11:25:55AM +0800, Bob Liu wrote:
> How to reproduce:
>  - "insmod null_blk.ko shared_tags=1 nr_devices=0 queue_mode=2"
>  - cpu0: python Script.py 0; taskset the corresponding process running on cpu0
>  - cpu1: python Script.py 1; taskset the corresponding process running on cpu1
> 
>  Script.py:

Can you wire this up for blktests?

Otherwise looks fine:

Reviewed-by: Christoph Hellwig <hch@lst.de>

  parent reply	other threads:[~2019-05-21  7:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-21  3:25 [RESEND PATCH v4] blk-mq: fix hang caused by freeze/unfreeze sequence Bob Liu
2019-05-21  6:08 ` Hannes Reinecke
2019-05-21  7:04 ` Christoph Hellwig [this message]
2019-05-21 12:49 ` Jens Axboe

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