This bug is missing log files that will aid in diagnosing the problem.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1641859
Title:
perf compiled without auxtrace
Status in linux package in Ubuntu:
Incomplete
Bug description:
perf in linux-tools-common_4.8.0-27.29 seems to be compiled without auxtrace
support. This prevents perf from using Intel Processor Trace (PT) or Branch
Trace Store (BTS). Unfortunately, rather than indicating that auxtrace is
missing, perf just records no samples:
# grep -c intel_pt /proc/cpuinfo
8
# perf list | grep intel_pt
# grep intel_pt /proc/cpuinfo
# perf record -e intel_pt// -- ls
...
# perf script
I am able to successfully to use PT on my machine if I compile perf
myself.
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