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Date:   Tue, 12 Jan 2021 17:36:01 +0000
From:   Johannes Thumshirn <>
To:     Feng Li <>,
        "Martin K. Petersen" <>
CC:     Li Feng <>, Jens Axboe <>,
        "open list:BLOCK LAYER" <>,
        open list <>
Subject: Re: [PATCH v2] blk: avoid divide-by-zero with zero granularity

On 12/01/2021 18:29, Feng Li wrote:
> I use the nvme-tcp as the host, the target is spdk nvme-tcp target,
> and set a wrong block size(i.g. bs=8), then the host prints this oops:

I think the better fix here is to reject devices which report a block size
small than a sector.

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