[  246.303332] Running test [R:12695763 T:6 - Livepatch kselftests - Kernel: 5.14.0-171.mr1410_221002_1052.el9.x86_64+debug] 
[  283.813827] livepatch: kernel.ftrace_enabled = 1 
[  283.851652] ===== TEST: target module before livepatch ===== 
[  283.920930] % modprobe test_klp_callbacks_mod 
[  283.953500] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  284.034688] % modprobe test_klp_callbacks_demo 
[  284.062886] test_klp_callbacks_demo: tainting kernel with TAINT_LIVEPATCH 
[  284.067605] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  284.070685] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  284.072686] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  284.075974] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  285.423909] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  285.426446] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  285.429764] livepatch: 'test_klp_callbacks_demo': patching complete 
[  285.465941] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  285.470644] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  285.473345] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  285.476733] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  285.482804] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  285.484928] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  285.488330] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  285.509785] % rmmod test_klp_callbacks_demo 
[  285.576683] % rmmod test_klp_callbacks_mod 
[  285.599790] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  285.740443] ===== TEST: module_coming notifier ===== 
[  285.805442] % modprobe test_klp_callbacks_demo 
[  285.834615] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  285.836807] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  285.838756] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  285.844060] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  285.845887] livepatch: 'test_klp_callbacks_demo': patching complete 
[  285.938190] % modprobe test_klp_callbacks_mod 
[  285.970028] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  285.975520] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  285.984310] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  285.994775] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  286.010889] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  286.017636] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  286.022135] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  286.027678] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  286.035415] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  286.040229] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  286.046289] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  286.068909] % rmmod test_klp_callbacks_demo 
[  286.132053] % rmmod test_klp_callbacks_mod 
[  286.158149] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  286.297511] ===== TEST: module_going notifier ===== 
[  286.366201] % modprobe test_klp_callbacks_mod 
[  286.398063] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  286.478050] % modprobe test_klp_callbacks_demo 
[  286.510419] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  286.514936] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  286.519162] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  286.524558] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  286.531910] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  286.536273] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  286.541773] livepatch: 'test_klp_callbacks_demo': patching complete 
[  286.594405] % rmmod test_klp_callbacks_mod 
[  286.621317] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  286.626432] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  286.631967] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  286.637286] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  286.665544] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  286.671467] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  286.676076] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  288.430847] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  288.435845] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  288.545009] % rmmod test_klp_callbacks_demo 
[  288.709580] ===== TEST: module_coming and module_going notifiers ===== 
[  288.782013] % modprobe test_klp_callbacks_demo 
[  288.814935] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  288.820072] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  288.824668] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  288.832662] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  288.837418] livepatch: 'test_klp_callbacks_demo': patching complete 
[  288.933080] % modprobe test_klp_callbacks_mod 
[  288.964533] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  288.970112] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  288.978895] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  288.989302] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  289.022161] % rmmod test_klp_callbacks_mod 
[  289.048698] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  289.054091] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  289.059720] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  289.065108] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  289.093617] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  289.099898] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  289.104430] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  289.111998] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  289.116535] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  289.139883] % rmmod test_klp_callbacks_demo 
[  289.307436] ===== TEST: target module not present ===== 
[  289.378904] % modprobe test_klp_callbacks_demo 
[  289.412432] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  289.417332] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  289.421754] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  289.429611] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  289.434402] livepatch: 'test_klp_callbacks_demo': patching complete 
[  289.468960] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  289.475242] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  289.479790] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  289.487400] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  289.492257] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  289.515272] % rmmod test_klp_callbacks_demo 
[  289.671814] ===== TEST: pre-patch callback -ENODEV ===== 
[  289.741547] % modprobe test_klp_callbacks_mod 
[  289.773755] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  289.789163] % modprobe test_klp_callbacks_demo pre_patch_ret=-19 
[  289.822514] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  289.827095] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  289.831338] livepatch: pre-patch callback failed for object 'vmlinux' 
[  289.835668] livepatch: failed to enable patch 'test_klp_callbacks_demo' 
[  289.840977] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  289.875651] modprobe: ERROR: could not insert 'test_klp_callbacks_demo': No such device 
[  289.898502] % rmmod test_klp_callbacks_mod 
[  289.924708] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  290.062807] ===== TEST: module_coming + pre-patch callback -ENODEV ===== 
[  290.132125] % modprobe test_klp_callbacks_demo 
[  290.164374] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  290.168939] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  290.173173] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  290.180569] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  290.185071] livepatch: 'test_klp_callbacks_demo': patching complete 
[  290.217736] % echo -19 > /sys/module/test_klp_callbacks_demo/parameters/pre_patch_ret 
[  290.241794] % modprobe test_klp_callbacks_mod 
[  290.272948] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  290.278231] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  290.286506] livepatch: pre-patch callback failed for object 'test_klp_callbacks_mod' 
[  290.291141] livepatch: patch 'test_klp_callbacks_demo' failed for module 'test_klp_callbacks_mod', refusing to load module 'test_klp_callbacks_mod' 
[  290.329611] modprobe: ERROR: could not insert 'test_klp_callbacks_mod': No such device 
[  290.335343] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  290.341005] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  290.345425] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  291.438489] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  291.443055] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  291.521880] % rmmod test_klp_callbacks_demo 
[  291.686281] ===== TEST: multiple target modules ===== 
[  291.756368] % modprobe test_klp_callbacks_busy block_transition=N 
[  291.788689] test_klp_callbacks_busy: test_klp_callbacks_busy_init 
[  291.794193] test_klp_callbacks_busy: busymod_work_func enter 
[  291.798790] test_klp_callbacks_busy: busymod_work_func exit 
[  291.876336] % modprobe test_klp_callbacks_demo 
[  291.911241] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  291.915784] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  291.919959] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  291.930847] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  291.938285] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  291.942525] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  291.947916] livepatch: 'test_klp_callbacks_demo': patching complete 
[  292.044724] % modprobe test_klp_callbacks_mod 
[  292.076859] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  292.082444] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  292.091097] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  292.102209] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  292.134395] % rmmod test_klp_callbacks_mod 
[  292.160905] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  292.166627] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  292.172347] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  292.177896] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  292.205802] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  292.212319] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  292.217117] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  292.223058] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  292.252879] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  292.257665] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  292.263549] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  292.291135] % rmmod test_klp_callbacks_demo 
[  292.360959] % rmmod test_klp_callbacks_busy 
[  292.387340] test_klp_callbacks_busy: test_klp_callbacks_busy_exit 
[  292.535231] ===== TEST: busy target module ===== 
[  292.603727] % modprobe test_klp_callbacks_busy block_transition=Y 
[  292.636838] test_klp_callbacks_busy: test_klp_callbacks_busy_init 
[  292.642207] test_klp_callbacks_busy: busymod_work_func enter 
[  292.719539] % modprobe test_klp_callbacks_demo 
[  292.753059] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  292.757711] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  292.761969] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  292.772137] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  292.871783] % modprobe test_klp_callbacks_mod 
[  292.902324] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  292.907795] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  292.917781] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  292.950214] % rmmod test_klp_callbacks_mod 
[  292.977530] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  292.982837] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  292.988419] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  293.015663] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  293.022391] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  294.474630] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  294.479595] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  294.485464] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  294.543651] % rmmod test_klp_callbacks_demo 
[  294.613534] % rmmod test_klp_callbacks_busy 
[  294.644164] test_klp_callbacks_busy: busymod_work_func exit 
[  294.649005] test_klp_callbacks_busy: test_klp_callbacks_busy_exit 
[  294.802818] ===== TEST: multiple livepatches ===== 
[  294.874281] % modprobe test_klp_callbacks_demo 
[  294.907955] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  294.912617] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  294.916867] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  294.924368] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  294.928837] livepatch: 'test_klp_callbacks_demo': patching complete 
[  295.026690] % modprobe test_klp_callbacks_demo2 
[  295.060535] livepatch: enabling patch 'test_klp_callbacks_demo2' 
[  295.065187] test_klp_callbacks_demo2: pre_patch_callback: vmlinux 
[  295.069402] livepatch: 'test_klp_callbacks_demo2': starting patching transition 
[  295.076823] test_klp_callbacks_demo2: post_patch_callback: vmlinux 
[  295.081384] livepatch: 'test_klp_callbacks_demo2': patching complete 
[  295.114552] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo2/enabled 
[  295.120588] test_klp_callbacks_demo2: pre_unpatch_callback: vmlinux 
[  295.124940] livepatch: 'test_klp_callbacks_demo2': starting unpatching transition 
[  295.132623] test_klp_callbacks_demo2: post_unpatch_callback: vmlinux 
[  295.137265] livepatch: 'test_klp_callbacks_demo2': unpatching complete 
[  295.143297] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  295.149055] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  295.153587] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  295.161195] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  295.165849] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  295.189605] % rmmod test_klp_callbacks_demo2 
[  295.257569] % rmmod test_klp_callbacks_demo 
[  295.427461] ===== TEST: atomic replace ===== 
[  295.496767] % modprobe test_klp_callbacks_demo 
[  295.531033] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  295.535575] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  295.539699] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  295.547124] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  295.551310] livepatch: 'test_klp_callbacks_demo': patching complete 
[  295.650536] % modprobe test_klp_callbacks_demo2 replace=1 
[  295.685128] livepatch: enabling patch 'test_klp_callbacks_demo2' 
[  295.689556] test_klp_callbacks_demo2: pre_patch_callback: vmlinux 
[  295.693556] livepatch: 'test_klp_callbacks_demo2': starting patching transition 
[  295.701058] test_klp_callbacks_demo2: post_patch_callback: vmlinux 
[  295.705271] livepatch: 'test_klp_callbacks_demo2': patching complete 
[  295.737805] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo2/enabled 
[  295.743593] test_klp_callbacks_demo2: pre_unpatch_callback: vmlinux 
[  295.747627] livepatch: 'test_klp_callbacks_demo2': starting unpatching transition 
[  295.754752] test_klp_callbacks_demo2: post_unpatch_callback: vmlinux 
[  295.758974] livepatch: 'test_klp_callbacks_demo2': unpatching complete 
[  295.782779] % rmmod test_klp_callbacks_demo2 
[  295.852866] % rmmod test_klp_callbacks_demo 
[  299.506636] livepatch: kernel.ftrace_enabled = 1 
[  299.553859] ===== TEST: livepatch interaction with ftrace_enabled sysctl ===== 
[  299.596786] livepatch: kernel.ftrace_enabled = 0 
[  299.601678] % modprobe test_klp_livepatch 
[  299.667113] livepatch: enabling patch 'test_klp_livepatch' 
[  299.672489] livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16) 
[  299.678480] livepatch: failed to patch object 'vmlinux' 
[  299.682430] livepatch: failed to enable patch 'test_klp_livepatch' 
[  299.687761] livepatch: 'test_klp_livepatch': unpatching complete 
[  299.728824] modprobe: ERROR: could not insert 'test_klp_livepatch': Device or resource busy 
[  299.774557] livepatch: kernel.ftrace_enabled = 1 
[  299.845781] % modprobe test_klp_livepatch 
[  299.909605] livepatch: enabling patch 'test_klp_livepatch' 
[  299.918313] livepatch: 'test_klp_livepatch': starting patching transition 
[  299.926384] livepatch: 'test_klp_livepatch': patching complete 
[  300.017150] livepatch: sysctl: setting key "kernel.ftrace_enabled": Device or resource busy 
[  300.022692] kernel.ftrace_enabled = 1 
[  300.043880] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  300.050336] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  300.080048] livepatch: 'test_klp_livepatch': unpatching complete 
[  300.105339] % rmmod test_klp_livepatch 
[  303.261833] livepatch: kernel.ftrace_enabled = 1 
[  303.302073] ===== TEST: basic function patching ===== 
[  303.371804] % modprobe test_klp_livepatch 
[  303.431483] livepatch: enabling patch 'test_klp_livepatch' 
[  303.439719] livepatch: 'test_klp_livepatch': starting patching transition 
[  303.446433] livepatch: 'test_klp_livepatch': patching complete 
[  303.498421] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  303.503958] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  303.533100] livepatch: 'test_klp_livepatch': unpatching complete 
[  303.555507] % rmmod test_klp_livepatch 
[  303.735245] ===== TEST: multiple livepatches ===== 
[  303.804465] % modprobe test_klp_livepatch 
[  303.863348] livepatch: enabling patch 'test_klp_livepatch' 
[  303.871681] livepatch: 'test_klp_livepatch': starting patching transition 
[  303.878890] livepatch: 'test_klp_livepatch': patching complete 
[  303.930158] test_klp_livepatch: this has been live patched 
[  304.021902] % modprobe test_klp_atomic_replace replace=0 
[  304.083311] livepatch: enabling patch 'test_klp_atomic_replace' 
[  304.091950] livepatch: 'test_klp_atomic_replace': starting patching transition 
[  305.390693] livepatch: 'test_klp_atomic_replace': patching complete 
[  305.493529] test_klp_livepatch: this has been live patched 
[  305.519651] test_klp_atomic_replace: this has been live patched 
[  305.528162] % echo 0 > /sys/kernel/livepatch/test_klp_atomic_replace/enabled 
[  305.533946] livepatch: 'test_klp_atomic_replace': starting unpatching transition 
[  305.565599] livepatch: 'test_klp_atomic_replace': unpatching complete 
[  305.588538] % rmmod test_klp_atomic_replace 
[  305.660341] test_klp_livepatch: this has been live patched 
[  305.687913] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  305.693734] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  305.721811] livepatch: 'test_klp_livepatch': unpatching complete 
[  305.743660] % rmmod test_klp_livepatch 
[  305.944906] ===== TEST: atomic replace livepatch ===== 
[  306.011175] % modprobe test_klp_livepatch 
[  306.070669] livepatch: enabling patch 'test_klp_livepatch' 
[  306.078795] livepatch: 'test_klp_livepatch': starting patching transition 
[  306.085520] livepatch: 'test_klp_livepatch': patching complete 
[  306.137072] test_klp_livepatch: this has been live patched 
[  306.228791] % modprobe test_klp_atomic_replace replace=1 
[  306.317011] livepatch: enabling patch 'test_klp_atomic_replace' 
[  306.325690] livepatch: 'test_klp_atomic_replace': starting patching transition 
[  306.356835] livepatch: 'test_klp_atomic_replace': patching complete 
[  306.427246] test_klp_atomic_replace: this has been live patched 
[  306.452205] % rmmod test_klp_livepatch 
[  306.544218] test_klp_atomic_replace: this has been live patched 
[  306.551948] % echo 0 > /sys/kernel/livepatch/test_klp_atomic_replace/enabled 
[  306.557377] livepatch: 'test_klp_atomic_replace': starting unpatching transition 
[  306.586869] livepatch: 'test_klp_atomic_replace': unpatching complete 
[  306.611942] % rmmod test_klp_atomic_replace 
[  309.781118] livepatch: kernel.ftrace_enabled = 1 
[  309.821333] ===== TEST: basic shadow variable API ===== 
[  309.896574] % modprobe test_klp_shadow_vars 
[  309.931330] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0 
[  309.935813] test_klp_shadow_vars:   got expected NULL result 
[  309.941150] test_klp_shadow_vars: shadow_ctor: PTR3 -> PTR2 
[  309.945706] test_klp_shadow_vars: klp_shadow_get_or_alloc(obj=PTR1, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR2 = PTR3 
[  309.954266] test_klp_shadow_vars: shadow_ctor: PTR6 -> PTR5 
[  309.958163] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR1, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR5 = PTR6 
[  309.966747] test_klp_shadow_vars: shadow_ctor: PTR8 -> PTR7 
[  309.970756] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR9, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR7 = PTR8 
[  309.979326] test_klp_shadow_vars: shadow_ctor: PTR11 -> PTR10 
[  309.983409] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR9, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR10 = PTR11 
[  309.992196] test_klp_shadow_vars: shadow_ctor: PTR13 -> PTR12 
[  309.996360] test_klp_shadow_vars: klp_shadow_get_or_alloc(obj=PTR14, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR12 = PTR13 
[  310.005597] test_klp_shadow_vars: shadow_ctor: PTR16 -> PTR15 
[  310.009876] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR14, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR15 = PTR16 
[  310.018550] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR3 
[  310.023253] test_klp_shadow_vars:   got expected PTR3 -> PTR2 result 
[  310.027763] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6 
[  310.032461] test_klp_shadow_vars:   got expected PTR6 -> PTR5 result 
[  310.036930] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1234) = PTR8 
[  310.041584] test_klp_shadow_vars:   got expected PTR8 -> PTR7 result 
[  310.046043] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11 
[  310.050754] test_klp_shadow_vars:   got expected PTR11 -> PTR10 result 
[  310.055245] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1234) = PTR13 
[  310.059934] test_klp_shadow_vars:   got expected PTR13 -> PTR12 result 
[  310.064421] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16 
[  310.069119] test_klp_shadow_vars:   got expected PTR16 -> PTR15 result 
[  310.073666] test_klp_shadow_vars: klp_shadow_get_or_alloc(obj=PTR1, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR2 = PTR3 
[  310.082679] test_klp_shadow_vars:   got expected PTR3 -> PTR2 result 
[  310.087264] test_klp_shadow_vars: klp_shadow_get_or_alloc(obj=PTR9, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR7 = PTR8 
[  310.096401] test_klp_shadow_vars:   got expected PTR8 -> PTR7 result 
[  310.101046] test_klp_shadow_vars: klp_shadow_get_or_alloc(obj=PTR14, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR12 = PTR13 
[  310.110445] test_klp_shadow_vars:   got expected PTR13 -> PTR12 result 
[  310.115255] test_klp_shadow_vars: shadow_dtor(obj=PTR1, shadow_data=PTR3) 
[  310.120610] test_klp_shadow_vars: klp_shadow_free(obj=PTR1, id=0x1234, dtor=PTR17) 
[  310.125770] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0 
[  310.130735] test_klp_shadow_vars:   got expected NULL result 
[  310.135242] test_klp_shadow_vars: shadow_dtor(obj=PTR9, shadow_data=PTR8) 
[  310.140124] test_klp_shadow_vars: klp_shadow_free(obj=PTR9, id=0x1234, dtor=PTR17) 
[  310.145206] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1234) = PTR0 
[  310.150107] test_klp_shadow_vars:   got expected NULL result 
[  310.154594] test_klp_shadow_vars: shadow_dtor(obj=PTR14, shadow_data=PTR13) 
[  310.159506] test_klp_shadow_vars: klp_shadow_free(obj=PTR14, id=0x1234, dtor=PTR17) 
[  310.164565] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1234) = PTR0 
[  310.169438] test_klp_shadow_vars:   got expected NULL result 
[  310.173849] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6 
[  310.178591] test_klp_shadow_vars:   got expected PTR6 -> PTR5 result 
[  310.183077] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11 
[  310.187799] test_klp_shadow_vars:   got expected PTR11 -> PTR10 result 
[  310.192302] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16 
[  310.196802] test_klp_shadow_vars:   got expected PTR16 -> PTR15 result 
[  310.201276] test_klp_shadow_vars: klp_shadow_free_all(id=0x1235, dtor=PTR0) 
[  310.205823] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR0 
[  310.210321] test_klp_shadow_vars:   got expected NULL result 
[  310.214401] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR0 
[  310.218849] test_klp_shadow_vars:   got expected NULL result 
[  310.222817] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR0 
[  310.227223] test_klp_shadow_vars:   got expected NULL result 
[  310.257621] % rmmod test_klp_shadow_vars 
[  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' 
[  313.497934] 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 
[  313.512948] 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 
[  313.576898] 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' 
[  313.872195] 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 
[  313.887307] 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 
[  314.194684] 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' 
[  314.503695] 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 
[  314.520731] 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 
[  314.998388] 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' 
[  315.379021] 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 
[  315.395288] 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 
[  315.534187] 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