Em Fri, Sep 11, 2015 at 03:56:44PM -0400, Raphaël Beamonte escreveu: > Another possibility would be to have another perf command, sort of a > "perf remountfs", to run with sudo and that would make itself both > checks and remount accordingly the two fs.
This part maybe more interesting, so I'll focus on it, yeah, having a: 'perf fixperms' command (have a better name? :) ) may make sense, would need context tho, i.e. something like: perf fixperms trace Or: perf fixperms top But then, perhaps in that case: $ trace ls Error: No permissions to read /sys/kernel/debug/tracing/events/raw_syscalls/sys_(enter|exit) Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug' We could just add some more text saying that please check as well that the other parts of the path we're trying to access are available once the suggestion is followed. - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/