Re: crashblk: a block device crash emulator.

From: Andreas Dilger
Date: Thu Jan 14 2016 - 14:44:51 EST

On Jan 13, 2016, at 6:50 PM, Takashi HOSHINO <hoshino@xxxxxxxxxxxxxxxxx> wrote:
> Hi all,
> I'm developing 'crashblk'.
> It is a memory block device driver to emulate crash, IO error,
> and various response time.

Why not use/improve dm-flakey for this, rather than making yet another
device that does something similar?

Cheers, Andreas

> The source code repository is here:
> It is very useful to test wrapper block device drivers,
> and must be useful to test filesystems also.
> I used it to test WalB (,
> which is a wrapper block device driver for backup and asynchronous
> replication, and found/confirmed several bugs.
> If you are interested in crashblk, try it and give me feedback!
> Thank you.
> Takashi
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Cheers, Andreas

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