[  313.352405] livepatch: kernel.ftrace_enabled = 1
[  313.393672] ===== TEST: system state modification =====
[  313.460929] % modprobe test_klp_state
[  313.494085] livepatch: enabling patch 'test_klp_state'
[  313.497714] livepatch: 'test_klp_state': initializing patching transition
[  313.497934] test_klp_state: pre_patch_callback: vmlinux
[  313.502017] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel
[  313.506549] livepatch: 'test_klp_state': starting patching transition
[  313.512786] livepatch: 'test_klp_state': completing patching transition
[  313.512948] test_klp_state: post_patch_callback: vmlinux
[  313.516625] test_klp_state: fix_console_loglevel: fixing console_loglevel
[  313.520626] livepatch: 'test_klp_state': patching complete
[  313.553480] % echo 0 > /sys/kernel/livepatch/test_klp_state/enabled
[  313.558218] livepatch: 'test_klp_state': initializing unpatching transition
[  313.562669] test_klp_state: pre_unpatch_callback: vmlinux
[  313.566349] test_klp_state: restore_console_loglevel: restoring console_loglevel
[  313.570503] livepatch: 'test_klp_state': starting unpatching transition
[  313.576536] livepatch: 'test_klp_state': completing unpatching transition
[  313.576898] test_klp_state: post_unpatch_callback: vmlinux
[  313.580913] test_klp_state: free_loglevel_state: freeing space for the stored console_loglevel
[  313.585822] livepatch: 'test_klp_state': unpatching complete
[  313.608955] % rmmod test_klp_state
[  313.769819] ===== TEST: taking over system state modification =====
[  313.836896] % modprobe test_klp_state
[  313.868324] livepatch: enabling patch 'test_klp_state'
[  313.871987] livepatch: 'test_klp_state': initializing patching transition
[  313.872195] test_klp_state: pre_patch_callback: vmlinux
[  313.876354] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel
[  313.880755] livepatch: 'test_klp_state': starting patching transition
[  313.887122] livepatch: 'test_klp_state': completing patching transition
[  313.887307] test_klp_state: post_patch_callback: vmlinux
[  313.890866] test_klp_state: fix_console_loglevel: fixing console_loglevel
[  313.894767] livepatch: 'test_klp_state': patching complete
[  314.000174] % modprobe test_klp_state2
[  314.033738] livepatch: enabling patch 'test_klp_state2'
[  314.037485] livepatch: 'test_klp_state2': initializing patching transition
[  314.041677] test_klp_state2: pre_patch_callback: vmlinux
[  314.045248] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated
[  314.049908] livepatch: 'test_klp_state2': starting patching transition
[  314.056740] livepatch: 'test_klp_state2': completing patching transition
[  314.061424] test_klp_state2: post_patch_callback: vmlinux
[  314.065149] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change
[  314.069561] livepatch: 'test_klp_state2': patching complete
[  314.119590] % rmmod test_klp_state
[  314.169031] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  314.174721] livepatch: 'test_klp_state2': initializing unpatching transition
[  314.179323] test_klp_state2: pre_unpatch_callback: vmlinux
[  314.183124] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  314.187436] livepatch: 'test_klp_state2': starting unpatching transition
[  314.194445] livepatch: 'test_klp_state2': completing unpatching transition
[  314.194684] test_klp_state2: post_unpatch_callback: vmlinux
[  314.198757] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  314.203485] livepatch: 'test_klp_state2': unpatching complete
[  314.225400] % rmmod test_klp_state2
[  314.392727] ===== TEST: compatible cumulative livepatches =====
[  314.462238] % modprobe test_klp_state2
[  314.499326] livepatch: enabling patch 'test_klp_state2'
[  314.503406] livepatch: 'test_klp_state2': initializing patching transition
[  314.503695] test_klp_state2: pre_patch_callback: vmlinux
[  314.508298] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel
[  314.513551] livepatch: 'test_klp_state2': starting patching transition
[  314.520531] livepatch: 'test_klp_state2': completing patching transition
[  314.520731] test_klp_state2: post_patch_callback: vmlinux
[  314.524628] test_klp_state2: fix_console_loglevel: fixing console_loglevel
[  314.528821] livepatch: 'test_klp_state2': patching complete
[  314.628359] % modprobe test_klp_state3
[  314.661967] livepatch: enabling patch 'test_klp_state3'
[  314.665946] livepatch: 'test_klp_state3': initializing patching transition
[  314.670490] test_klp_state3: pre_patch_callback: vmlinux
[  314.674316] test_klp_state3: allocate_loglevel_state: space to store console_loglevel already allocated
[  314.679226] livepatch: 'test_klp_state3': starting patching transition
[  314.686189] livepatch: 'test_klp_state3': completing patching transition
[  314.691016] test_klp_state3: post_patch_callback: vmlinux
[  314.694863] test_klp_state3: fix_console_loglevel: taking over the console_loglevel change
[  314.699444] livepatch: 'test_klp_state3': patching complete
[  314.751092] % rmmod test_klp_state2
[  314.867871] % modprobe test_klp_state2
[  314.899940] livepatch: enabling patch 'test_klp_state2'
[  314.903812] livepatch: 'test_klp_state2': initializing patching transition
[  314.908216] test_klp_state2: pre_patch_callback: vmlinux
[  314.911963] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated
[  314.916789] livepatch: 'test_klp_state2': starting patching transition
[  314.923572] livepatch: 'test_klp_state2': completing patching transition
[  314.928240] test_klp_state2: post_patch_callback: vmlinux
[  314.932067] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change
[  314.936628] livepatch: 'test_klp_state2': patching complete
[  314.970888] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  314.976323] livepatch: 'test_klp_state2': initializing unpatching transition
[  314.981549] test_klp_state2: pre_unpatch_callback: vmlinux
[  314.985622] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  314.990314] livepatch: 'test_klp_state2': starting unpatching transition
[  314.997125] livepatch: 'test_klp_state2': completing unpatching transition
[  314.998388] test_klp_state2: post_unpatch_callback: vmlinux
[  315.002591] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  315.007764] livepatch: 'test_klp_state2': unpatching complete
[  315.032853] % rmmod test_klp_state2
[  315.101963] % rmmod test_klp_state3
[  315.270837] ===== TEST: incompatible cumulative livepatches =====
[  315.341593] % modprobe test_klp_state2
[  315.374728] livepatch: enabling patch 'test_klp_state2'
[  315.378810] livepatch: 'test_klp_state2': initializing patching transition
[  315.379021] test_klp_state2: pre_patch_callback: vmlinux
[  315.383588] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel
[  315.388346] livepatch: 'test_klp_state2': starting patching transition
[  315.395103] livepatch: 'test_klp_state2': completing patching transition
[  315.395288] test_klp_state2: post_patch_callback: vmlinux
[  315.399130] test_klp_state2: fix_console_loglevel: fixing console_loglevel
[  315.403278] livepatch: 'test_klp_state2': patching complete
[  315.435415] % modprobe test_klp_state
[  315.467276] livepatch: Livepatch patch (test_klp_state) is not compatible with the already installed livepatches.
[  315.501394] modprobe: ERROR: could not insert 'test_klp_state': Invalid argument
[  315.507508] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled
[  315.512691] livepatch: 'test_klp_state2': initializing unpatching transition
[  315.517845] test_klp_state2: pre_unpatch_callback: vmlinux
[  315.521991] test_klp_state2: restore_console_loglevel: restoring console_loglevel
[  315.526709] livepatch: 'test_klp_state2': starting unpatching transition
[  315.533966] livepatch: 'test_klp_state2': completing unpatching transition
[  315.534187] test_klp_state2: post_unpatch_callback: vmlinux
[  315.538221] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel
[  315.543045] livepatch: 'test_klp_state2': unpatching complete
[  315.567469] % rmmod test_klp_state2