** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-z-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: ubuntu-z-systems
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1772593
Title:
cpum_sf: ensure sample freq is non-zero
Status in Ubuntu on IBM z Systems:
New
Status in linux package in Ubuntu:
New
Bug description:
Description: cpum_sf: ensure sample freq is non-zero
Symptom: A kernel crash might occur.
Problem: An FP divide exception during the sample rate
initialization for the hardware sampling facility.
Solution: Ensure that the sample frequency of the perf
event attribute is non-zero.
Reproduction: Run trinity against the perf_event_open() syscall.
Upstream-ID: 4bbaf2584b86b0772413edeac22ff448f36351b1
Component: kernel
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