Re: 3.2.57 regression: isci driver broken: Unable to reset I T nexus?

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On Monday 28 April 2014 17:50:29 Jiang, Dave wrote:
> On Mon, 2014-04-28 at 13:03 +0200, Ondrej Zary wrote:
> > Hello,
> > just upgraded a server running 3.2.54-2 to 3.2.57-3 (Debian Wheezy) and
> > it does not boot anymore because of isci driver breakage.
>
> I would not run anything less than 3.8 for the isci controller. 3.2 is
> VERY old for that particular driver and likely very unstable. The
> product version of that driver plus libsas started with 3.8. Also I'm
> concerned that you aren't using the platform OEM parameters. You need to
> turn your OROM or EFI driver on for the SAS controller.

It's a Cisco UCS C22 M3 server with a crappy LSI fakeraid that cannot even be 
disabled. It was a pain to make it boot properly - had to use dmraid. But it 
has been working fine since then (2012). Until now.

I guess that it could be caused by the following commit but haven't tested it:
commit 584ec12265192bf49dfa270d517380f6723a6956
Author: Dan Williams <dan.j.williams@xxxxxxxxx>
Date:   Thu Feb 6 12:23:01 2014 -0800


> > A (partial) log transcription:
> > sas: DOING DISCOVERY on port 0, pid:5
> > sas: Enter sas_scsi_recover_host
> > ata1: sas eh calling libata port error handler
> > sas: sas_ata_hard_reset: Unable to reset I T nexus?
> > sas: sas_ata_hard_reset: Found ATA device.
> > sas: sas_ata_hard_reset: Unable to soft reset
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata1: reset failed (errno=-11), retrying in 10 secs
> > sas: sas_ata_hard_reset: Unable to reset I T nexus?
> > sas: sas_ata_hard_reset: Found ATA device.
> > sas: sas_ata_hard_reset: Unable to soft reset
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata1: reset failed (errno=-11), retrying in 35 secs
> > ata1: reset failed, giving up
> > sas: --- Exit sas_scsi_recover_host
> > sas: DONE DISCOVERY on port 0, pid: 5, result:0
> > sas: phy-0:1 added to port-0:1, phy_mask:0x2 (5fcfffff00000002)
> > sas: DOING DISCOVERY on port 1, pid:5
> > sas: Enter sas_scsi_recover_host
> > ata1: sas eh calling libata port error handler
> > sas: sas_ata_hard_reset: Unable to reset I T nexus?
> > sas: sas_ata_hard_reset: Found ATA device.
> > sas: sas_ata_hard_reset: Unable to soft reset
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata2: reset failed (errno=-11), retrying in 10 secs
> > sas: sas_ata_hard_reset: Unable to reset I T nexus?
> > sas: sas_ata_hard_reset: Found ATA device.
> > sas: sas_ata_hard_reset: Unable to soft reset
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata2: reset failed (errno=-11), retrying in 35 secs
> > ata2: reset failed, giving up
> >
> >
> > It should look like this (v3.2.54-2):
> > isci: Intel(R) C600 SAS Controller Driver - version 1.0.0
> > isci 0000:03:00.0: driver configured for rev: 6 silicon
> > isci 0000:03:00.0: firmware: agent loaded isci/isci_firmware.bin into
> > memory isci 0000:03:00.0: OEM SAS parameters (version: 1.3) loaded
> > (firmware) isci 0000:03:00.0: setting latency timer to 64
> > scsi0 : isci
> > scsi1 : isci
> > isci 0000:03:00.0: irq 81 for MSI/MSI-X
> > isci 0000:03:00.0: irq 82 for MSI/MSI-X
> > isci 0000:03:00.0: irq 83 for MSI/MSI-X
> > isci 0000:03:00.0: irq 84 for MSI/MSI-X
> > sas: phy-0:0 added to port-0:0, phy_mask:0x1 (5fcfffff00000001)
> > sas: DOING DISCOVERY on port 0, pid:5
> > sas: Enter sas_scsi_recover_host
> > ata1: sas eh calling libata port error handler
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata1.00: ATA-8: ST9500620NS, CC02, max UDMA/133
> > ata1.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> > ata1.00: configured for UDMA/133
> > sas: --- Exit sas_scsi_recover_host
> > scsi 0:0:0:0: Direct-Access     ATA      ST9500620NS      CC02 PQ: 0
> > ANSI: 5 sas: DONE DISCOVERY on port 0, pid:5, result:0
> > sas: phy-0:1 added to port-0:1, phy_mask:0x2 (5fcfffff00000002)
> > sas: DOING DISCOVERY on port 1, pid:5
> > sas: Enter sas_scsi_recover_host
> > ata1: sas eh calling libata port error handler
> > ata2: sas eh calling libata port error handler
> > sas: sas_ata_hard_reset: Found ATA device.
> > ata2.00: ATA-8: ST9500620NS, CC02, max UDMA/133
> > ata2.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> > ata2.00: configured for UDMA/133
> > sas: --- Exit sas_scsi_recover_host
> > scsi 0:0:1:0: Direct-Access     ATA      ST9500620NS      CC02 PQ: 0
> > ANSI: 5 sas: DONE DISCOVERY on port 1, pid:5, result:0


-- 
Ondrej Zary
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