group.of.nepali.translators team mailing list archive

[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

I have set this bug as "not a duplicate", in order to track the request
to have the fix backported to the 4.4 kernels (Xenial and Trusty-hwe ).

** This bug is no longer a duplicate of bug 1840076
   Disco update: upstream stable patchset 2019-08-13

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

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

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

** Changed in: linux (Ubuntu Bionic)
       Status: New => Fix Released

** Changed in: linux (Ubuntu Disco)
       Status: New => Fix Released

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

** Changed in: linux (Ubuntu Eoan)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1845033

Title:
  xenbus: Avoid deadlock during suspend due to open transactions

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  New
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Disco:
  Fix Released
Status in linux source package in Eoan:
  Fix Released

Bug description:
  [Impact]
  Xen guests may hang during resume after a migration or suspend.

  [Test Case]
  Create a Xen guest and run this script and then suspending the VM:

      import pyxs, time
      c = pyxs.client.Client(xen_bus_path="/dev/xen/xenbus")
      c.connect()
      c.transaction()
      time.sleep(3600)

  [Fix]
  The following upstream commit fixes the issue:

  "xenbus: Avoid deadlock during suspend due to open transactions"
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d10e0cc113c9e1b64b5c6e3db37b5c839794f3df

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