group.of.nepali.translators team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Per the commit message for commit dae55b6fef5, the requested patch is
also needed in Trusty and Xenial:

Fixes: 25f269f17316 ("[S390] qdio: EQBS retry after CCQ 96")
Cc: <stable@xxxxxxxxxxxxxxx> #v3.2+


** Changed in: linux (Ubuntu)
     Assignee: Skipper Bug Screeners (skipper-screen-team) => Joseph Salisbury (jsalisbury)

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

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

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

** Changed in: linux (Ubuntu Bionic)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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

** Changed in: linux (Ubuntu Bionic)
       Status: New => In Progress

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

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

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

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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

** Changed in: linux (Ubuntu Trusty)
       Status: New => In Progress

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

** Changed in: linux (Ubuntu Trusty)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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https://bugs.launchpad.net/bugs/1781535

Title:
  qdio: don't retry EQBS after CCQ 96

Status in Ubuntu on IBM z Systems:
  Triaged
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  In Progress
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  Description:  qdio: don't retry EQBS after CCQ 96

  Symptom:      Queue stalls, over-/underreporting of buffer errors.

  Problem:      Immediate retry of EQBS after CCQ 96 means that we
                potentially misreport the state of buffers inspected
                during the first EQBS call.

  Solution:     On CCQ 96, first process the discovered state.
                Afterwards, higher-level code will eventually trigger an
                EQBS/inspection of the remaining buffers. Their state is
                now processed independently from the state that was
                discovered during the first EQBS.

  Upstream-ID:  dae55b6fef58530c13df074bcc182c096609339e

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