[Precise SRU][PULL] fix Marvell SATA controller hang

Kamal Mostafa kamal at canonical.com
Mon Mar 25 18:30:32 UTC 2013


SRU Justification

Impact:
Ubuntu 12.04.2 causes the system to be hung after running command udevadm info --attribute-walk --path=/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/ata1/ata_port/ata1 | sed -n 's/ ATTR{\(.*\)}=="\(.*\)"/A: \1=\2/p'
for sata controller. Sata controller in question is Marvel 9125

Issue can be reproduce by running checkbox certification on Atom cartridge with MArvell sata controller.
There is patch provided by MArvell and submitted upstream but not yet accepted.
Here are the discussions happened so far.

https://patchwork.kernel.org/patch/2232391/
 http://www.spinics.net/lists/linux-pci/msg20596.html

Canonical can fix in kernel once patch has been accepted upstream. Patch details are as follows
http://comments.gmane.org/gmane.linux.kernel.pci/20678

Test Case:
See above.

---------- >8 ------------------------------------------------------

The following changes since commit f50fbb1c473d9242eea0936744e0f629ea4b6245:

  UBUNTU: SAUCE: Revert "[PATCH] UBUNTU: SAUCE: xen/pv-spinlock: Never enable interrupts in xen_spin_lock_slow()" (2013-03-25 08:24:48 -0400)

are available in the git repository at:

  git://kernel.ubuntu.com/kamal/ubuntu-precise.git marvell-sata

for you to fetch changes up to ee9c1e4813586568fe4c02d09203604fc438ee70:

  UBUNTU: SAUCE: PCI: fix system hang issue of Marvell SATA host controller (2013-03-25 11:23:33 -0700)

----------------------------------------------------------------
Xiangliang Yu (2):
      UBUNTU: SAUCE: PCI: define macro for marvell vendor ID
      UBUNTU: SAUCE: PCI: fix system hang issue of Marvell SATA host controller

 drivers/pci/quirks.c    |   15 +++++++++++++++
 include/linux/pci_ids.h |    1 +
 2 files changed, 16 insertions(+)




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