From: Thomas Richter
Using perf on 4.16.0 kernel on s390 shows this warning:
failed: can't open node sysfs data
each time I run command perf record ... for example:
[root@s35lp76 perf]# ./perf record -e rB -- sleep 1
[ perf record: Woken up 1 times to write
From: Thomas Richter
Using perf on 4.16.0 kernel on s390 shows this warning:
failed: can't open node sysfs data
each time I run command perf record ... for example:
[root@s35lp76 perf]# ./perf record -e rB -- sleep 1
[ perf record: Woken up 1 times to write data ]
failed: can't
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