'perf record' emits a perf.data such that 'perf report' throws: 0x3d1e0 [0x20]: failed to process type: 9 I'm only seeing this on ppc64 so far.
Not seeing this anymore, so, cool.
I saw this today too, on amd64. "perf report" worked, but "perf report -s dso" failed with this error. I suspect this is possibly from having done kernel upgrades via yum, but having not rebooted yet. 3.6.10-2.fc17 is installed, but I'm still running 3.6.9-2.fc17.x86_64 (So probably NOTABUG, but this might help anyone googling this error...)