failed to sample program on ubuntu

[Shihao Xia]

flamegraph -o xxxxx.svg -- /some/binary

After executed this command, the perf.data is generated but no svg file.

---

.... (normal stdout)
[ perf record: Woken up 4 times to write data ]
[ perf record: Captured and wrote 1.242 MB perf.data (75 samples) ]
failed to sample program

Does anyone know what would be the possible reason for "failed to sample program" or reason for no svg file?

[Dirkjan Ochtman]

No. Try searching for this problem with perf (which flamegraph is using to generate the profile).