** Information type changed from Proprietary to Public
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Fix Released
** Changed in: intel
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1519647
Title:
[Bug]intel_pstate: divide by zero do to same mperf
Status in intel:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Released
Bug description:
On KNL, very rarely, it may happen that mperf read twice in a row has
the same value. It results in kernel panic due to divide by zero
Platform: KNL
This is fixed in 4.3 kernel with:
8e601a9 cpufreq: intel_pstate: Fix divide by zero on Knights Landing (KNL)
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