https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77684
--- Comment #8 from andi at firstfloor dot org --- > The log shows the same errors: > spawn [open ...] > Permission error mapping pages. > Consider increasing /proc/sys/kernel/perf_event_mlock_kb, > or try again with a smaller value of -m/--mmap_pages. > (current value: 4294967295,0) That's strange. it should be smaller with the -m flag. Perhaps missed some case. -Andi > FAIL: gcc.dg/tree-prof/pr52150.c execution, -g