관리-도구

편집 파일: hw_watch_sym.meta

title: Watch a Kernel Symbol Using Breakpoint Hardware name: hw_watch_sym.stp version: 1.0 author: William Cohen keywords: memory watchpoint subsystem: memory status: production exit: user-controlled output: trace scope: system-wide description: The script will watch accesses to the starting address of a single kernel symbol and prints a traceback each time the symbol is accessed. This script needs to be run as root to allow access to the breakpoint hardware. test_support: perf stat -a --event=mem:0x`grep "vm_dirty_ratio" /proc/kallsyms | awk '{print $1}'` /bin/true test_check: stap --all-modules -p4 hw_watch_sym.stp vm_dirty_ratio test_installcheck: stap --all-modules hw_watch_sym.stp vm_dirty_ratio -T 5