kernel-packages team mailing list archive

[dann frazier <dann.frazier@xxxxxxxxxxxxx>]

Public bug reported:

[Impact]
This impacts 2 socket Cavium ThunderX systems using pass-1.1 silicon, and can result in IO hangs.

[Test Case]
$ dmesg | grep "ITS command queue timeout"

[Regression Risk]
The workaround is in gicv3 specific code, and only activated when the hw revision in the IIDR matches ThunderX pass 1.x silicon, so risk to other platforms is minimal.

** Affects: linux (Ubuntu)
     Importance: High
     Assignee: dann frazier (dannf)
         Status: Confirmed

** Affects: linux (Ubuntu Xenial)
     Importance: High
     Assignee: dann frazier (dannf)
         Status: Confirmed

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => dann frazier (dannf)

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Confirmed

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => dann frazier (dannf)

** Description changed:

  [Impact]
- This impacts 2 socket Cavium ThunderX systems using pass-1.1 silicon.
+ This impacts 2 socket Cavium ThunderX systems using pass-1.1 silicon, and can result in IO hangs.
  
  [Test Case]
  $ dmesg | grep "ITS command queue timeout"
  
  [Regression Risk]
  The workaround is in gicv3 specific code, and only activated when the hw revision in the IIDR matches ThunderX pass 1.x silicon, so risk to other platforms is minimal.

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https://bugs.launchpad.net/bugs/1589704

Title:
  workaround cavium thunderx silicon erratum

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Confirmed

Bug description:
  [Impact]
  This impacts 2 socket Cavium ThunderX systems using pass-1.1 silicon, and can result in IO hangs.

  [Test Case]
  $ dmesg | grep "ITS command queue timeout"

  [Regression Risk]
  The workaround is in gicv3 specific code, and only activated when the hw revision in the IIDR matches ThunderX pass 1.x silicon, so risk to other platforms is minimal.

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