Hi,
On Thu, 21 Nov 2024, George Guo wrote:
From: George Guo guodongtai@kylinos.cn
The script test-callbacks.sh fails with the following error: $ sudo ./test-callbacks.sh TEST: target module before livepatch ... not ok
- expected
- result
test_klp_callbacks_mod: test_klp_callbacks_mod_init % insmod test_modules/test_klp_callbacks_demo.ko livepatch: enabling patch 'test_klp_callbacks_demo' -livepatch: 'test_klp_callbacks_demo': initializing patching transition +transition: 'test_klp_callbacks_demo': initializing patching transition test_klp_callbacks_demo: pre_patch_callback: vmlinux test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state -livepatch: 'test_klp_callbacks_demo': starting patching transition -livepatch: 'test_klp_callbacks_demo': completing patching transition +transition: 'test_klp_callbacks_demo': starting patching transition +transition: 'test_klp_callbacks_demo': completing patching transition test_klp_callbacks_demo: post_patch_callback: vmlinux test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state -livepatch: 'test_klp_callbacks_demo': patching complete +transition: 'test_klp_callbacks_demo': patching complete % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled -livepatch: 'test_klp_callbacks_demo': initializing unpatching transition +transition: 'test_klp_callbacks_demo': initializing unpatching transition test_klp_callbacks_demo: pre_unpatch_callback: vmlinux test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state -livepatch: 'test_klp_callbacks_demo': starting unpatching transition -livepatch: 'test_klp_callbacks_demo': completing unpatching transition +transition: 'test_klp_callbacks_demo': starting unpatching transition +transition: 'test_klp_callbacks_demo': completing unpatching transition test_klp_callbacks_demo: post_unpatch_callback: vmlinux test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state -livepatch: 'test_klp_callbacks_demo': unpatching complete +transition: 'test_klp_callbacks_demo': unpatching complete % rmmod test_klp_callbacks_demo % rmmod test_klp_callbacks_mod test_klp_callbacks_mod: test_klp_callbacks_mod_exit
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.
are you sure? I have just run livepatch selftests on v6.12 and everything was fine.
The above suggests that something happened to KBUILD_MODNAME in your case (which would also mean that the fix should be different). Could you verify or provide more information, please?
Miroslav