10.3-BETA2 regression in MPT

[Terry Kennedy]

  I have some systems which I plan to upgrade from 8.4 to 10.3 once 10.3
is released. In the meantime, I'm testing 10.3-BETA2 and have found what
appears to be a regression in the MPT driver.

  The system is a Dell PowerEdge R300 with a Dell SAS6 controller:

mpt0 at pci0:5:0:0:        class=0x010000 card=0x1f0e1028 chip=0x00581000 rev=0x08 hdr=0x00
    vendor     = 'LSI Logic / Symbios Logic'
    device     = 'SAS1068E PCI-Express Fusion-MPT SAS'
    class      = mass storage
    subclass   = SCSI

  Both the system BIOS and the SAS6 firmware are at the latest revisions
from Dell (which haven't changed in years).

  On the 8.4 system, "grep mpt /var/run/dmesg.boot" reports:

mpt0: <LSILogic SAS/SATA Adapter> port 0xec00-0xecff mem 0xdfcec000-0xdfceffff,0xdfcf0000-0xdfcfffff irq 16 at device 0.0 on pci5
mpt0: [ITHREAD]
mpt0: MPI Version=1.5.18.0
mpt0: Capabilities: ( RAID-0 RAID-1E RAID-1 )
mpt0: 1 Active Volume (2 Max)
mpt0: 2 Hidden Drive Members (14 Max)
mpt0:vol0(mpt0:0:0): Settings ( Hot-Plug-Spares High-Priority-ReSync )
mpt0:vol0(mpt0:0:0): Using Spare Pool: 0
mpt0:vol0(mpt0:0:0): 2 Members:
      (mpt0:1:9:0): Primary Online
      (mpt0:1:1:0): Secondary Online
mpt0:vol0(mpt0:0:0): RAID-1 - Optimal
mpt0:vol0(mpt0:0:0): Status ( Enabled )
(mpt0:vol0:1): Physical (mpt0:0:1:0), Pass-thru (mpt0:1:0:0)
(mpt0:vol0:1): Online
(mpt0:vol0:0): Physical (mpt0:0:9:0), Pass-thru (mpt0:1:1:0)
(mpt0:vol0:0): Online
(probe0:mpt0:0:0:0): REPORT LUNS. CDB: a0 00 00 00 00 00 00 00 00 10 00 00 
(probe0:mpt0:0:0:0): CAM status: SCSI Status Error
(probe0:mpt0:0:0:0): SCSI status: Check Condition
(probe0:mpt0:0:0:0): SCSI sense: ILLEGAL REQUEST info?:39000000 asc:0,0 (No additional sense information)
ses0 at mpt0 bus 0 scbus0 target 8 lun 0
pass2 at mpt0 bus 1 scbus1 target 0 lun 0
da0 at mpt0 bus 0 scbus0 target 0 lun 0

  [I'm not sure what that ILLEGAL REQUEST is about.]

  On the same system, running 10.3-BETA2 r295785, I see:

mpt0: <LSILogic SAS/SATA Adapter> port 0xec00-0xecff mem 0xdfcec000-0xdfceffff,0xdfcf0000-0xdfcfffff irq 16 at device 0.0 on pci5
mpt0: MPI Version=1.5.18.0
mpt0: Capabilities: ( RAID-0 RAID-1E RAID-1 )
mpt0: 1 Active Volume (2 Max)
mpt0: 2 Hidden Drive Members (14 Max)
mpt0:vol0(mpt0:0:0): Settings ( Hot-Plug-Spares High-Priority-ReSync )
mpt0:vol0(mpt0:0:0): Using Spare Pool:
mpt0:vol0(mpt0:0:0): 2 Members:
      (mpt0:1:9:0): Primary Online
      (mpt0:1:1:0): Secondary Online
mpt0:vol0(mpt0:0:0): RAID-1 - Optimal
mpt0:vol0(mpt0:0:0): Status ( Enabled )
(mpt0:vol0:1): Physical (mpt0:0:1:0), Pass-thru (mpt0:1:0:0)
(mpt0:vol0:1): Online
(mpt0:vol0:0): Physical (mpt0:0:9:0), Pass-thru (mpt0:1:1:0)
(mpt0:vol0:0): Online
(probe64:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe64:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe64:mpt0:1:1:0): Retrying command
(probe64:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe64:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe64:mpt0:1:1:0): Retrying command
(probe0:mpt0:0:0:0): REPORT LUNS. CDB: a0 00 00 00 00 00 00 00 00 10 00 00 
(probe0:mpt0:0:0:0): CAM status: SCSI Status Error
(probe0:mpt0:0:0:0): SCSI status: Check Condition
(probe0:mpt0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:ffffffff,ffffffff (Reserved ASC/ASCQ pair)
(probe0:mpt0:0:0:0): Error 22, Unretryable error
(probe64:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe64:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe64:mpt0:1:1:0): Retrying command
(probe64:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe64:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe64:mpt0:1:1:0): Retrying command
(probe64:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe64:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe64:mpt0:1:1:0): Error 5, Retries exhausted
(probe1:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe1:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe1:mpt0:1:1:0): Retrying command
(probe1:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe1:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe1:mpt0:1:1:0): Retrying command
(probe1:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe1:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe1:mpt0:1:1:0): Retrying command
(probe1:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe1:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe1:mpt0:1:1:0): Retrying command
(probe1:mpt0:1:1:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe1:mpt0:1:1:0): CAM status: Unrecoverable Host Bus Adapter Error
(probe1:mpt0:1:1:0): Error 5, Retries exhausted
da0 at mpt0 bus 0 scbus0 target 0 lun 0
ses0 at mpt0 bus 0 scbus0 target 8 lun 0
pass2 at mpt0 bus 1 scbus1 target 0 lun 0

  I can try to narrow down when this regression was introduced, but I fig-
ured I'd report it in case somebody has an "ah-hah" moment from seeing it.

  Also, there has always been an issue with passthru on these controllers -
as you can see above, there are 2 physical disks attached to the controller,
used as a mirror volume. But only one of the members appears as a passN de-
vice, which means that the other one can't be monitored with smartmontools.
If I'm remembering correctly, a volume with more than 2 drives creates a
passN device for all but one of the drives.

        Terry Kennedy     http://www.glaver.org      New York, NY USA