[  135.385724] livepatch: kernel.ftrace_enabled = 1
[  135.390161] ===== TEST: system state modification =====
[  135.399023] % modprobe test_klp_state
[  135.403630] livepatch: enabling patch 'test_klp_state'
[  135.404735] livepatch: 'test_klp_state': initializing patching transition
[  135.404775] test_klp_state: pre_patch_callback: vmlinux
[  135.405928] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel
[  135.407647] livepatch: 'test_klp_state': starting patching transition
[  136.385919] livepatch: 'test_klp_state': completing patching transition
[  136.386042] test_klp_state: post_patch_callback: vmlinux
[  136.387281] test_klp_state: fix_console_loglevel: fixing console_loglevel
[  136.388808] livepatch: 'test_klp_state': patching complete
[  136.447384] % echo 0 > /sys/kernel/livepatch/test_klp_state/enabled
[  136.448891] livepatch: 'test_klp_state': initializing unpatching transition
[  136.450318] test_klp_state: pre_unpatch_callback: vmlinux
[  136.451410] test_klp_state: restore_console_loglevel: restoring console_loglevel
[  136.452867] livepatch: 'test_klp_state': starting unpatching transition
[  137.409819] livepatch: 'test_klp_state': completing unpatching transition
[  137.409933] test_klp_state: post_unpatch_callback: vmlinux
[  137.411162] test_klp_state: free_loglevel_state: freeing space for the stored console_loglevel
[  137.412935] livepatch: 'test_klp_state': unpatching complete
[  137.474742] % rmmod test_klp_state
[  137.495606] ===== TEST: taking over system state modification =====
[  137.504419] % modprobe test_klp_state
[  137.508874] livepatch: enabling patch 'test_klp_state'
[  137.509929] livepatch: 'test_klp_state': initializing patching transition
[  137.509975] test_klp_state: pre_patch_callback: vmlinux
[  137.511188] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel
[  137.512996] livepatch: 'test_klp_state': starting patching transition
[  137.514484] livepatch: 'test_klp_state': completing patching transition
[  137.514503] test_klp_state: post_patch_callback: vmlinux
[  137.515568] test_klp_state: fix_console_loglevel: fixing console_loglevel
[  137.516908] livepatch: 'test_klp_state': patching complete
[  137.528710] % modprobe test_klp_state2
[  137.533273] livepatch: enabling patch 'test_klp_state2'
[  137.534353] livepatch: 'test_klp_state2': initializing patching transition
[  137.535743] test_klp_state2: pre_patch_callback: vmlinux
[  137.536811] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated
[  137.538695] livepatch: 'test_klp_state2': starting patching transition
[  138.369614] livepatch: 'test_klp_state2': completing patching transition
[  138.371036] test_klp_state2: post_patch_callback: vmlinux
[  138.372128] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change
[  138.373771] livepatch: 'test_klp_state2': patching complete
[  138.478998] % rmmod test_klp_state
[  138.489326] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  138.490680] livepatch: 'test_klp_state2': initializing unpatching transition
[  138.492134] test_klp_state2: pre_unpatch_callback: vmlinux
[  138.493239] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  138.494715] livepatch: 'test_klp_state2': starting unpatching transition
[  139.393671] livepatch: 'test_klp_state2': completing unpatching transition
[  139.393791] test_klp_state2: post_unpatch_callback: vmlinux
[  139.394952] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  139.396827] livepatch: 'test_klp_state2': unpatching complete
[  139.415428] % rmmod test_klp_state2
[  139.439868] ===== TEST: compatible cumulative livepatches =====
[  139.449107] % modprobe test_klp_state2
[  139.454675] livepatch: enabling patch 'test_klp_state2'
[  139.455752] livepatch: 'test_klp_state2': initializing patching transition
[  139.455801] test_klp_state2: pre_patch_callback: vmlinux
[  139.456995] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel
[  139.458754] livepatch: 'test_klp_state2': starting patching transition
[  139.460279] livepatch: 'test_klp_state2': completing patching transition
[  139.460315] test_klp_state2: post_patch_callback: vmlinux
[  139.461413] test_klp_state2: fix_console_loglevel: fixing console_loglevel
[  139.462850] livepatch: 'test_klp_state2': patching complete
[  139.474690] % modprobe test_klp_state3
[  139.479182] livepatch: enabling patch 'test_klp_state3'
[  139.480401] livepatch: 'test_klp_state3': initializing patching transition
[  139.481817] test_klp_state3: pre_patch_callback: vmlinux
[  139.482910] test_klp_state3: allocate_loglevel_state: space to store console_loglevel already allocated
[  139.484781] livepatch: 'test_klp_state3': starting patching transition
[  140.417689] livepatch: 'test_klp_state3': completing patching transition
[  140.419672] test_klp_state3: post_patch_callback: vmlinux
[  140.420899] test_klp_state3: fix_console_loglevel: taking over the console_loglevel change
[  140.422728] livepatch: 'test_klp_state3': patching complete
[  140.427955] % rmmod test_klp_state2
[  140.449532] % modprobe test_klp_state2
[  140.454579] livepatch: enabling patch 'test_klp_state2'
[  140.455786] livepatch: 'test_klp_state2': initializing patching transition
[  140.457350] test_klp_state2: pre_patch_callback: vmlinux
[  140.458542] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated
[  140.460617] livepatch: 'test_klp_state2': starting patching transition
[  140.462268] livepatch: 'test_klp_state2': completing patching transition
[  140.463818] test_klp_state2: post_patch_callback: vmlinux
[  140.465040] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change
[  140.466877] livepatch: 'test_klp_state2': patching complete
[  140.471458] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  140.472983] livepatch: 'test_klp_state2': initializing unpatching transition
[  140.474603] test_klp_state2: pre_unpatch_callback: vmlinux
[  140.475835] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  140.477492] livepatch: 'test_klp_state2': starting unpatching transition
[  140.479124] livepatch: 'test_klp_state2': completing unpatching transition
[  140.479156] test_klp_state2: post_unpatch_callback: vmlinux
[  140.480402] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  140.482340] livepatch: 'test_klp_state2': unpatching complete
[  140.485696] % rmmod test_klp_state2
[  140.498984] % rmmod test_klp_state3
[  140.522452] ===== TEST: incompatible cumulative livepatches =====
[  140.531980] % modprobe test_klp_state2
[  140.536963] livepatch: enabling patch 'test_klp_state2'
[  140.538183] livepatch: 'test_klp_state2': initializing patching transition
[  140.538219] test_klp_state2: pre_patch_callback: vmlinux
[  140.539524] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel
[  140.541466] livepatch: 'test_klp_state2': starting patching transition
[  140.543129] livepatch: 'test_klp_state2': completing patching transition
[  140.543147] test_klp_state2: post_patch_callback: vmlinux
[  140.544356] test_klp_state2: fix_console_loglevel: fixing console_loglevel
[  140.545881] livepatch: 'test_klp_state2': patching complete
[  140.550480] % modprobe test_klp_state
[  140.555521] livepatch: Livepatch patch (test_klp_state) is not compatible with the already installed livepatches.
[  140.570232] modprobe: ERROR: could not insert 'test_klp_state': Invalid argument
[  140.571991] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  140.573468] livepatch: 'test_klp_state2': initializing unpatching transition
[  140.575062] test_klp_state2: pre_unpatch_callback: vmlinux
[  140.576289] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  140.577946] livepatch: 'test_klp_state2': starting unpatching transition
[  141.377609] livepatch: 'test_klp_state2': completing unpatching transition
[  141.377735] test_klp_state2: post_unpatch_callback: vmlinux
[  141.379046] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  141.380987] livepatch: 'test_klp_state2': unpatching complete
[  141.397328] % rmmod test_klp_state2