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Date:   Tue, 19 Dec 2017 10:37:10 -0800
From:   Stephen Hemminger <>
To:     Cathy Avery <>
Subject: Re: [PATCH] scsi: storvsc: Fix scsi_cmd error assignments in

On Tue, 19 Dec 2017 13:32:48 -0500
Cathy Avery <> wrote:

> When an I/O is returned with an srb_status of SRB_STATUS_INVALID_LUN
> which has zero good_bytes it must be assigned an error. Otherwise
> the I/O will be continuously requeued and will cause a deadlock in the
> case where disks are being hot added and removed. sd_probe_async will
> wait forever for its I/O to complete while holding scsi_sd_probe_domain.
> Also returning the default error of DID_TARGET_FAILURE causes
> multipath to not retry the I/O resulting in applications receiving I/O
> errors before a failover can occur.
> Signed-off-by: Cathy Avery <>
> Signed-off-by: Long Li <>

When working on the DVD probe issue I saw that error handling was
problematic. Thanks for fixing.

Reviewed-by: Stephen Hemminger <>

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