RE: [PATCH] [SCSI] libsas panic when single phy disabled on a wide port

Mark Salyzyn
2011-10-05T12:11:09Z

Our duplication is to send an out-of-band CLI command to a downstream
expander's Firmware and tell it to disable one of it's phys. Sounds
simple, but not when someone else has all the customized pieces and
serial cables ;-/ and the duplicator has moved on in priority.

Pregnant thought, smp_phy_control --phy=? --op=dis (wrong side, probably
too 'wide' of an aim) has not been tried ...

Sincerely -- Mark Salyzyn

-----Original Message-----
From: dan.j.williams@gmail.com [mailto:dan.j.williams@gmail.com] On
Behalf Of Dan Williams
Sent: Tuesday, October 04, 2011 7:31 PM
To: Mark Salyzyn
Subject: Re: [PATCH] [SCSI] libsas panic when single phy disabled on a
wide port

. . .

What is your reproduction scenario for this bug? We see this in our
larger topology hotplug tests, but I don't think we have a simple
reproducer.
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