[Bug 663094] [NEW] Ubuntu 10.10 crashes due to Marvell 88SE6440 SAS controller + LG Blu-ray drive

[mcof32]

Public bug reported:

This seems to be a regression between 10.04 and 10.10 so I'm hoping it
will be easy to fix.  I think the problem is with mvsas since I saw
another post a couple months ago about someone getting the same error
with same driver, same controller, and a Western Digital hard drive.

Basically, syslog gets flooded with "Oct 18 20:53:33 ubuntu1 kernel: [
44.443573] ata9: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ
0xb/00/00".  Then after 5 minutes to 12 hours the keyboard and mouse
stop working (including Ctrl+Alt+F#), and the screen is completely
locked up, i.e. if I disable the screen saver the system clock stops
updating.  Plus after reboot the last entry in syslog is at exactly the
time the freeze occurs.

The error message appears to be coming from ata_to_sense_error() in drivers/ata/libata-scsi.c in the kernel.
 - ata9 is my Blu-ray drive according to syslog
 - stat/err 0x01/04 => status=0x01 (Error), error=0x04 (DriveStatusError)

$ lspci | grep Marvell
07:00.0 RAID bus controller: Marvell Technology Group Ltd. 88SE6440 SAS/SATA PCIe controller (rev 02)	# <= Bad
08:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II Controller (rev b2)

$ modinfo mvsas
filename:       /lib/modules/2.6.35-22-generic/kernel/drivers/scsi/mvsas/mvsas.ko
license:        GPL
version:        0.8.2
description:    Marvell 88SE6440 SAS/SATA controller driver
author:         Jeff Garzik <jgarzik at pobox.com>
srcversion:     CD5D92D9B9A0DC0F46E7546
alias:          pci:v00009005d00000450sv*sd*bc*sc*i*
alias:          pci:v000017D3d00001320sv*sd*bc*sc*i*
alias:          pci:v000017D3d00001300sv*sd*bc*sc*i*
alias:          pci:v000011ABd00009180sv*sd*bc*sc*i*
alias:          pci:v000011ABd00009480sv*sd*bc*sc*i*
alias:          pci:v000011ABd00006485sv*sd*bc*sc*i*
alias:          pci:v000011ABd00006440sv*sd*bc*sc*i*
alias:          pci:v000011ABd00006440sv*sd00006480bc*sc*i*
alias:          pci:v000011ABd00006340sv*sd*bc*sc*i*
alias:          pci:v000011ABd00006320sv*sd*bc*sc*i*
depends:        libsas,scsi_transport_sas
vermagic:       2.6.35-22-generic SMP mod_unload modversions 

$ uname -a
Linux ubuntu1 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux

Syslog attached.  Notice errors start immediately after ata9 is loaded.
This started happening immediately after upgrading from 10.04 to 10.10.
Unplugging the Blu-ray drive stops the messages and the crashes.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Ubuntu 10.10 crashes due to Marvell 88SE6440 SAS controller + LG Blu-ray drive
https://bugs.launchpad.net/bugs/663094
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