2025-09-11 10:27 UTC-0700 ~ Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> > Hi Quentin, > > since last merge window bpftool triggers a warn: > $ bpftool prog tracelog > [ 72.942082] NOTICE: Automounting of tracing to debugfs is > deprecated and will be removed in 2030 > > > I suspect it happens because get_tracefs_pipe() > accesses debug/tracing first which causes automnount > and triggers this warning. > > Pls take a look. Hi Alexei, sure, I'll look into it. I haven't tested yet, but the check on /sys/kernel/debug/tracing is likely to be the cause indeed. If that's the case, would that be OK to move it to the end of the "known_mnts" list in the function? Or do you prefer to avoid the warning completely, even at the cost of missing the tracefs on older systems? Quentin
