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[Bug 1742502] Re: 108 and 109 kernel hangs

 

** Tags added: pti

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

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

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

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

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

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https://bugs.launchpad.net/bugs/1742502

Title:
  108 and 109 kernel hangs

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

Bug description:
  Overnight I had 2 of 12  16.04 servers brick with the 108 kernel. They
  also do not work with 109.  They work fine with 104. The other 10
  worked fine on both 108 and 109.

  All are hosted on VMWARE. The two broken ones stop at the same place.
  I was able to go back to the 104 kernel to get them working and pin
  the kernel version.

  Just for fun, I set zswap.enabled=0 and they both crashed with kthread
  starved for jiffies. They are both multi-processor with lots of ram
  and disk.

  I have a task from the Ubuntu Kernel team to try this with 'nopti'.
  I'll report back.

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