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[TheKey84 <1590869@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Since installing Kubuntu 16.04 a freeze bug keeps appearing on my
system. It appears only in rare occassions and I don't know a way to
trigger it on purpose.

I activated kernel crash dumps according to
https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html, but that
didn't work as expected (no crashdump was saved). But after activating
that mechanism I was able to ssh into the system the last time it
happend and I was able to dump the output of dmesg into a file.

It seems to be related to the radeon driver. This bug is extremely
annoying as it freezes the system immediately without prior notice. And
I had to push the reset button, REISUB didn't work.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: freeze radeon

** Attachment added: "dmesg.log"
   https://bugs.launchpad.net/bugs/1590869/+attachment/4680514/+files/dmesg.log

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https://bugs.launchpad.net/bugs/1590869

Title:
  radeon freeze

Status in linux package in Ubuntu:
  New

Bug description:
  Since installing Kubuntu 16.04 a freeze bug keeps appearing on my
  system. It appears only in rare occassions and I don't know a way to
  trigger it on purpose.

  I activated kernel crash dumps according to
  https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html, but
  that didn't work as expected (no crashdump was saved). But after
  activating that mechanism I was able to ssh into the system the last
  time it happend and I was able to dump the output of dmesg into a
  file.

  It seems to be related to the radeon driver. This bug is extremely
  annoying as it freezes the system immediately without prior notice.
  And I had to push the reset button, REISUB didn't work.

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