Hi, 'perf test' is failed on linux 2.6.37-rc2/rc3, follows log info: root at beagleboard:/mnt/omap/linux-2.6-omap/tools/perf# ./perf test -v 3 1: vmlinux symtab matches kallsyms: --- start --- dso__find_symbol_by_name ---- end ---- vmlinux symtab matches kallsyms: FAILED! Any suggestions? -- Lei Ming