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[Bug 1559918] Re: [Bug]SKL-H boot hang when c8+c9+c10 enabled by intel_idle driver


This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
wily' to 'verification-done-wily'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!

** Tags added: verification-needed-wily

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  [Bug]SKL-H boot hang when c8+c9+c10 enabled by intel_idle driver

Status in HWE Next:
Status in intel:
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Wily:
  In Progress
Status in linux source package in Xenial:
  Fix Released

Bug description:
  System will hang immediately with 4.3 kernel above on SKL-H GT4 sdv.
  The workaround for this is intel_idle.max_cstate=6/7 boot option. 
  But intel_idle.max_cstate=8 will generate system hang 


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