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Date:      Mon, 02 Oct 2017 23:43:20 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-usb@FreeBSD.org
Subject:   [Bug 222743] unable to boot/install from Supermicro IPMI emulated disks
Message-ID:  <bug-222743-17@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222743

            Bug ID: 222743
           Summary: unable to boot/install from Supermicro IPMI emulated
                    disks
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: usb
          Assignee: freebsd-usb@FreeBSD.org
          Reporter: bugzilla@globecorp.net

Created attachment 186869
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D186869&action=
=3Dedit
IPMI screenshot showing problem

The FreeBSD 10.2 and later, including 10.3-REL and 11.0-REL on both i386 and
amd64 can not be loaded or installed on all Supermicro X9 motherboards (tes=
ted
on X9DLR,  X9DBi, X9SCa, X9SCi-LN4F and many others) using IPMI emulated CD=
ROM.

after kernel loaded it stucks on umass1-device probe:

umass1: 8087i (ATAPI) over Blulk-Only; quirks =3D 0xc101
umass1:8:1: Attached to scbus0
(cd0:umass1-sim1:1:0:0): got CAM status 0x44
(cd0:umass1-sim1:1:0:0): fatal error, failed to attach to device
g_access(918): provider cd0 has error
g_access(918): provider cd0 has error
g_access(918): provider cd0 has error
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command
...
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Error 5, Retries exhaused.

we have digged deeply into the problem and found that it is related to how =
BSD
deals with CDROM cache. Using the best of our knowledge we found a way to f=
ix
it:

on the boot time escaping to loader prompt (press 3 in when loader menu
appears), and entering following command:

set hw.usb.quirk.0=3D"0x0ea0 0x2222 0 0xffff UQ_MSC_NO_SYNC_CACHE"
boot

after this kernel loads successfully and FreeBSD can be installed without a=
ny
troubles.

The problem appears only on FreeBSD 10.2 and later. Version 10.1 and previo=
us
including but not limited to : 10.0 , 9.3 , 8.4 , 7.4 and 6.4 have no such
problem.

Please add this fix to the further releases including 10.4 , as at the mome=
nt
its barely impossible to install or repair OS on the servers with mentioned
motherboards which are very popular.

Thanks,
Tech Support Team
Globecorp Networks

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