The script test-ftrace.sh fails with the following error: $ sudo ./test-ftrace.sh TEST: livepatch interaction with ftrace_enabled sysctl ... not ok
- expected + result livepatch: kernel.ftrace_enabled = 0 % insmod test_modules/test_klp_livepatch.ko livepatch: enabling patch 'test_klp_livepatch' -livepatch: 'test_klp_livepatch': initializing patching transition -livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16) +transition: 'test_klp_livepatch': initializing patching transition livepatch: failed to patch object 'vmlinux' livepatch: failed to enable patch 'test_klp_livepatch' -livepatch: 'test_klp_livepatch': canceling patching transition, going to unpatch -livepatch: 'test_klp_livepatch': completing unpatching transition -livepatch: 'test_klp_livepatch': unpatching complete +transition: 'test_klp_livepatch': canceling patching transition, going to unpatch +transition: 'test_klp_livepatch': completing unpatching transition +transition: 'test_klp_livepatch': unpatching complete insmod: ERROR: could not insert module test_modules/test_klp_livepatch.ko: Device or resource busy livepatch: kernel.ftrace_enabled = 1 % insmod test_modules/test_klp_livepatch.ko livepatch: enabling patch 'test_klp_livepatch' -livepatch: 'test_klp_livepatch': initializing patching transition -livepatch: 'test_klp_livepatch': starting patching transition -livepatch: 'test_klp_livepatch': completing patching transition -livepatch: 'test_klp_livepatch': patching complete +transition: 'test_klp_livepatch': initializing patching transition +transition: 'test_klp_livepatch': starting patching transition +transition: 'test_klp_livepatch': completing patching transition +transition: 'test_klp_livepatch': patching complete livepatch: sysctl: setting key "kernel.ftrace_enabled": Device or resource busy % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled -livepatch: 'test_klp_livepatch': initializing unpatching transition -livepatch: 'test_klp_livepatch': starting unpatching transition -livepatch: 'test_klp_livepatch': completing unpatching transition -livepatch: 'test_klp_livepatch': unpatching complete +transition: 'test_klp_livepatch': initializing unpatching transition +transition: 'test_klp_livepatch': starting unpatching transition +transition: 'test_klp_livepatch': completing unpatching transition +transition: 'test_klp_livepatch': unpatching complete % rmmod test_klp_livepatch ERROR: livepatch kselftest(s) failed The issue arises due to a mismatch in expected log output during livepatch transition. Specifically, the logs previously contained "livepatch:" but have now been updated to "transition:". This results in test failures when comparing the output with the expected values. This patch updates the expected test output to reflect the new log format. Signed-off-by: George Guo <guodong...@kylinos.cn> --- .../selftests/livepatch/test-ftrace.sh | 25 +++++++++---------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/livepatch/test-ftrace.sh b/tools/testing/selftests/livepatch/test-ftrace.sh index 730218bce99c..04561e433e05 100755 --- a/tools/testing/selftests/livepatch/test-ftrace.sh +++ b/tools/testing/selftests/livepatch/test-ftrace.sh @@ -37,27 +37,26 @@ unload_lp $MOD_LIVEPATCH check_result "livepatch: kernel.ftrace_enabled = 0 % insmod test_modules/$MOD_LIVEPATCH.ko livepatch: enabling patch '$MOD_LIVEPATCH' -livepatch: '$MOD_LIVEPATCH': initializing patching transition -livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16) +transition: '$MOD_LIVEPATCH': initializing patching transition livepatch: failed to patch object 'vmlinux' livepatch: failed to enable patch '$MOD_LIVEPATCH' -livepatch: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch -livepatch: '$MOD_LIVEPATCH': completing unpatching transition -livepatch: '$MOD_LIVEPATCH': unpatching complete +transition: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch +transition: '$MOD_LIVEPATCH': completing unpatching transition +transition: '$MOD_LIVEPATCH': unpatching complete insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Device or resource busy livepatch: kernel.ftrace_enabled = 1 % insmod test_modules/$MOD_LIVEPATCH.ko livepatch: enabling patch '$MOD_LIVEPATCH' -livepatch: '$MOD_LIVEPATCH': initializing patching transition -livepatch: '$MOD_LIVEPATCH': starting patching transition -livepatch: '$MOD_LIVEPATCH': completing patching transition -livepatch: '$MOD_LIVEPATCH': patching complete +transition: '$MOD_LIVEPATCH': initializing patching transition +transition: '$MOD_LIVEPATCH': starting patching transition +transition: '$MOD_LIVEPATCH': completing patching transition +transition: '$MOD_LIVEPATCH': patching complete livepatch: sysctl: setting key \"kernel.ftrace_enabled\": Device or resource busy % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled -livepatch: '$MOD_LIVEPATCH': initializing unpatching transition -livepatch: '$MOD_LIVEPATCH': starting unpatching transition -livepatch: '$MOD_LIVEPATCH': completing unpatching transition -livepatch: '$MOD_LIVEPATCH': unpatching complete +transition: '$MOD_LIVEPATCH': initializing unpatching transition +transition: '$MOD_LIVEPATCH': starting unpatching transition +transition: '$MOD_LIVEPATCH': completing unpatching transition +transition: '$MOD_LIVEPATCH': unpatching complete % rmmod $MOD_LIVEPATCH" -- 2.39.2
