group.of.nepali.translators team mailing list archive

[Jamie Strandboge <jamie@xxxxxxxxxx>]

** Changed in: snappy
       Status: Fix Committed => Fix Released

** Changed in: canonical-devices-system-image
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1661265

Title:
  [regression] sched_setscheduler denied with Qt/QML applications

Status in Canonical System Image:
  Fix Released
Status in Snappy:
  Fix Released
Status in snapd package in Ubuntu:
  Fix Released
Status in snapd source package in Trusty:
  Fix Released
Status in snapd source package in Xenial:
  Fix Released
Status in snapd source package in Yakkety:
  Fix Released
Status in snapd source package in Zesty:
  Fix Released

Bug description:
  2.22 added stricter mediation of sched_setscheduler which requires use
  of 'process-control' with certain invocations of sched_setsceduler.
  Testing and code searches for sched_setscheduler showed that this was
  not an issue for most applications and existing snaps, but after 2.22
  was released it was found that qtbase-opensource-src uses
  sched_setscheduler indirectly as part of QThread::Priority, and
  QThread::Priority is used extensively under the hood by the libraries
  to support (at least) QML applications.

  The fix is simple, adjust interfaces/seccomp/template.go from this:
    sched_setscheduler 0 - -

  back to:
    sched_setscheduler

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