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From: Laurence Oberman <loberman@redhat.com>
To: dgilbert <dgilbert@interlog.com>,
	linux-scsi <linux-scsi@vger.kernel.org>
Subject: Request for input on new options for scsi_debug driver
Date: Sat, 03 Feb 2018 11:54:14 -0500	[thread overview]
Message-ID: <1517676854.18584.2.camel@redhat.com> (raw)

Hello

During various fault injection scenarios it would be useful to be able
to pick a specific starting sector and number of follow on sectors
where a MEDIUM ERROR for reads would be returned against a scsi-debug
device.

Right now this only works against sector 0x1234 and OPT_MEDIUM_ERR_NUM
follow on sectors.
However during testing of md-raid and other scenarios I wanted more
flexibility.

The idea is add 2 new parameters:
medium_error_start
medium_error_count

If medium_error_start is set then we don't use the default of
OPT_MEDIUM_ERR_ADDR, but use that set value.
If medium_error_count is set we use that value otherwise default to
OPT_MEDIUM_ERR_NUM.

Should I send a patch for this, wanted to find out if this would be
acceptable before I waste anybody's time having to review.

Regards
Laurence Oberman

                 reply	other threads:[~2018-02-03 16:54 UTC|newest]

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