[  122.900952] Running test [R:12696837 T:6 - Livepatch kselftests - Kernel: 5.14.0-171.mr1393_221002_1550.el9.x86_64] 
[  139.576435] livepatch: kernel.ftrace_enabled = 1 
[  139.585273] ===== TEST: target module before livepatch ===== 
[  139.614112] % modprobe test_klp_callbacks_mod 
[  139.623289] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  139.644232] % modprobe test_klp_callbacks_demo 
[  139.652779] test_klp_callbacks_demo: tainting kernel with TAINT_LIVEPATCH 
[  139.660619] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  139.667390] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  139.674096] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  139.685736] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  141.173387] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  141.180196] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  141.191942] livepatch: 'test_klp_callbacks_demo': patching complete 
[  141.244400] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  141.252452] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  141.259357] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  141.271200] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  142.197369] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  142.204376] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  142.216316] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  142.295896] % rmmod test_klp_callbacks_demo 
[  142.312587] % rmmod test_klp_callbacks_mod 
[  142.319265] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  142.341056] ===== TEST: module_coming notifier ===== 
[  142.354534] % modprobe test_klp_callbacks_demo 
[  142.363530] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  142.370292] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  142.377002] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  144.117270] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  144.124081] livepatch: 'test_klp_callbacks_demo': patching complete 
[  144.147487] % modprobe test_klp_callbacks_mod 
[  144.155894] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  144.166678] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  144.180465] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  144.194417] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  144.201908] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  144.209885] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  144.216789] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  144.228645] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  145.141211] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  145.148215] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  145.160160] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  145.253725] % rmmod test_klp_callbacks_demo 
[  145.276522] % rmmod test_klp_callbacks_mod 
[  145.283201] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  145.316459] ===== TEST: module_going notifier ===== 
[  145.329265] % modprobe test_klp_callbacks_mod 
[  145.337542] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  145.352553] % modprobe test_klp_callbacks_demo 
[  145.361637] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  145.368312] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  145.375020] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  145.386671] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  147.125124] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  147.131957] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state 
[  147.143704] livepatch: 'test_klp_callbacks_demo': patching complete 
[  147.255570] % rmmod test_klp_callbacks_mod 
[  147.262356] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  147.269041] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  147.280792] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  147.291859] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  147.309762] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  147.317830] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  147.324734] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  148.149098] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  148.156118] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  148.248124] % rmmod test_klp_callbacks_demo 
[  148.276428] ===== TEST: module_coming and module_going notifiers ===== 
[  148.291607] % modprobe test_klp_callbacks_demo 
[  148.300468] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  148.307148] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  148.313855] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  149.173080] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  149.179890] livepatch: 'test_klp_callbacks_demo': patching complete 
[  149.260125] % modprobe test_klp_callbacks_mod 
[  149.268344] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  149.279135] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  149.292922] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  149.306850] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  149.315964] % rmmod test_klp_callbacks_mod 
[  149.322642] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  149.329394] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  149.341169] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  149.352239] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  149.370713] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  149.378689] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  149.385594] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  151.157018] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  151.164023] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  151.222453] % rmmod test_klp_callbacks_demo 
[  151.248514] ===== TEST: target module not present ===== 
[  151.262099] % modprobe test_klp_callbacks_demo 
[  151.270999] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  151.277689] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  151.284387] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  152.244948] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  152.251755] livepatch: 'test_klp_callbacks_demo': patching complete 
[  152.326322] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  152.334335] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  152.341241] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  153.204946] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  153.211948] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  153.265088] % rmmod test_klp_callbacks_demo 
[  153.291668] ===== TEST: pre-patch callback -ENODEV ===== 
[  153.305123] % modprobe test_klp_callbacks_mod 
[  153.313606] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  153.321073] % modprobe test_klp_callbacks_demo pre_patch_ret=-19 
[  153.331682] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  153.338412] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  153.345119] livepatch: pre-patch callback failed for object 'vmlinux' 
[  153.352309] livepatch: failed to enable patch 'test_klp_callbacks_demo' 
[  153.359907] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  153.381451] modprobe: ERROR: could not insert 'test_klp_callbacks_demo': No such device 
[  153.392146] % rmmod test_klp_callbacks_mod 
[  153.398773] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  153.421401] ===== TEST: module_coming + pre-patch callback -ENODEV ===== 
[  153.436555] % modprobe test_klp_callbacks_demo 
[  153.445433] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  153.452120] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  153.458830] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  155.188900] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  155.195709] livepatch: 'test_klp_callbacks_demo': patching complete 
[  155.222761] % echo -19 > /sys/module/test_klp_callbacks_demo/parameters/pre_patch_ret 
[  155.233284] % modprobe test_klp_callbacks_mod 
[  155.241588] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  155.252370] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  155.266160] livepatch: pre-patch callback failed for object 'test_klp_callbacks_mod' 
[  155.274808] livepatch: patch 'test_klp_callbacks_demo' failed for module 'test_klp_callbacks_mod', refusing to load module 'test_klp_callbacks_mod' 
[  155.308540] modprobe: ERROR: could not insert 'test_klp_callbacks_mod': No such device 
[  155.317523] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  155.325537] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  155.332440] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  156.148833] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  156.155837] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  156.256767] % rmmod test_klp_callbacks_demo 
[  156.286890] ===== TEST: multiple target modules ===== 
[  156.303963] % modprobe test_klp_callbacks_busy block_transition=N 
[  156.314303] test_klp_callbacks_busy: test_klp_callbacks_busy_init 
[  156.321124] test_klp_callbacks_busy: busymod_work_func enter 
[  156.327460] test_klp_callbacks_busy: busymod_work_func exit 
[  156.342130] % modprobe test_klp_callbacks_demo 
[  156.351833] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  156.358517] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  156.365225] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  156.379776] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  158.132825] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  158.139633] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  158.151479] livepatch: 'test_klp_callbacks_demo': patching complete 
[  158.255504] % modprobe test_klp_callbacks_mod 
[  158.263747] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  158.274528] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  158.288327] test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  158.302275] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  158.311419] % rmmod test_klp_callbacks_mod 
[  158.318220] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  158.324950] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  158.336702] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  158.347771] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  158.370414] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  158.378413] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  158.385317] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  158.397259] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  160.223742] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  160.230749] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  160.242801] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  160.336220] % rmmod test_klp_callbacks_demo 
[  160.356969] % rmmod test_klp_callbacks_busy 
[  160.363826] test_klp_callbacks_busy: test_klp_callbacks_busy_exit 
[  160.388702] ===== TEST: busy target module ===== 
[  160.401351] % modprobe test_klp_callbacks_busy block_transition=Y 
[  160.411557] test_klp_callbacks_busy: test_klp_callbacks_busy_init 
[  160.418390] test_klp_callbacks_busy: busymod_work_func enter 
[  160.433213] % modprobe test_klp_callbacks_demo 
[  160.442819] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  160.449537] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  160.456243] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  160.470898] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  160.489566] % modprobe test_klp_callbacks_mod 
[  160.497711] livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' 
[  160.508501] test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init 
[  160.522336] test_klp_callbacks_mod: test_klp_callbacks_mod_init 
[  160.531487] % rmmod test_klp_callbacks_mod 
[  160.538266] test_klp_callbacks_mod: test_klp_callbacks_mod_exit 
[  160.544947] livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' 
[  160.556020] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away 
[  160.574294] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  160.582364] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  162.195668] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  162.202672] test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_busy -> [MODULE_STATE_LIVE] Normal state 
[  162.214713] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  162.318302] % rmmod test_klp_callbacks_demo 
[  162.338109] % rmmod test_klp_callbacks_busy 
[  162.362461] test_klp_callbacks_busy: busymod_work_func exit 
[  162.368730] test_klp_callbacks_busy: test_klp_callbacks_busy_exit 
[  162.395070] ===== TEST: multiple livepatches ===== 
[  162.408199] % modprobe test_klp_callbacks_demo 
[  162.417127] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  162.423796] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  162.430503] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  164.148573] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  164.155384] livepatch: 'test_klp_callbacks_demo': patching complete 
[  164.208368] % modprobe test_klp_callbacks_demo2 
[  164.217195] livepatch: enabling patch 'test_klp_callbacks_demo2' 
[  164.223952] test_klp_callbacks_demo2: pre_patch_callback: vmlinux 
[  164.230756] livepatch: 'test_klp_callbacks_demo2': starting patching transition 
[  165.172493] test_klp_callbacks_demo2: post_patch_callback: vmlinux 
[  165.179406] livepatch: 'test_klp_callbacks_demo2': patching complete 
[  165.273268] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo2/enabled 
[  165.281399] test_klp_callbacks_demo2: pre_unpatch_callback: vmlinux 
[  165.288400] livepatch: 'test_klp_callbacks_demo2': starting unpatching transition 
[  166.196492] test_klp_callbacks_demo2: post_unpatch_callback: vmlinux 
[  166.203596] livepatch: 'test_klp_callbacks_demo2': unpatching complete 
[  166.311781] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled 
[  166.319764] test_klp_callbacks_demo: pre_unpatch_callback: vmlinux 
[  166.326668] livepatch: 'test_klp_callbacks_demo': starting unpatching transition 
[  167.156456] test_klp_callbacks_demo: post_unpatch_callback: vmlinux 
[  167.163460] livepatch: 'test_klp_callbacks_demo': unpatching complete 
[  167.250403] % rmmod test_klp_callbacks_demo2 
[  167.273893] % rmmod test_klp_callbacks_demo 
[  167.305190] ===== TEST: atomic replace ===== 
[  167.317914] % modprobe test_klp_callbacks_demo 
[  167.326889] livepatch: enabling patch 'test_klp_callbacks_demo' 
[  167.333653] test_klp_callbacks_demo: pre_patch_callback: vmlinux 
[  167.340365] livepatch: 'test_klp_callbacks_demo': starting patching transition 
[  168.180408] test_klp_callbacks_demo: post_patch_callback: vmlinux 
[  168.187231] livepatch: 'test_klp_callbacks_demo': patching complete 
[  168.287169] % modprobe test_klp_callbacks_demo2 replace=1 
[  168.297240] livepatch: enabling patch 'test_klp_callbacks_demo2' 
[  168.303984] test_klp_callbacks_demo2: pre_patch_callback: vmlinux 
[  168.310788] livepatch: 'test_klp_callbacks_demo2': starting patching transition 
[  169.140391] test_klp_callbacks_demo2: post_patch_callback: vmlinux 
[  169.147315] livepatch: 'test_klp_callbacks_demo2': patching complete 
[  169.252543] % echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo2/enabled 
[  169.260612] test_klp_callbacks_demo2: pre_unpatch_callback: vmlinux 
[  169.267633] livepatch: 'test_klp_callbacks_demo2': starting unpatching transition 
[  170.164371] test_klp_callbacks_demo2: post_unpatch_callback: vmlinux 
[  170.171471] livepatch: 'test_klp_callbacks_demo2': unpatching complete 
[  170.191580] % rmmod test_klp_callbacks_demo2 
[  170.207651] % rmmod test_klp_callbacks_demo 
[  170.709359] livepatch: kernel.ftrace_enabled = 1 
[  170.718196] ===== TEST: livepatch interaction with ftrace_enabled sysctl ===== 
[  170.729754] livepatch: kernel.ftrace_enabled = 0 
[  170.735058] % modprobe test_klp_livepatch 
[  170.765265] livepatch: enabling patch 'test_klp_livepatch' 
[  170.771542] livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16) 
[  170.781263] livepatch: failed to patch object 'vmlinux' 
[  170.787107] livepatch: failed to enable patch 'test_klp_livepatch' 
[  170.794280] livepatch: 'test_klp_livepatch': unpatching complete 
[  170.814902] modprobe: ERROR: could not insert 'test_klp_livepatch': Device or resource busy 
[  170.827711] livepatch: kernel.ftrace_enabled = 1 
[  170.840386] % modprobe test_klp_livepatch 
[  170.865992] livepatch: enabling patch 'test_klp_livepatch' 
[  170.874550] livepatch: 'test_klp_livepatch': starting patching transition 
[  172.212280] livepatch: 'test_klp_livepatch': patching complete 
[  172.230438] livepatch: sysctl: setting key "kernel.ftrace_enabled": Device or resource busy 
[  172.239767] kernel.ftrace_enabled = 1 
[  172.245557] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  172.253121] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  173.195278] livepatch: 'test_klp_livepatch': unpatching complete 
[  173.278032] % rmmod test_klp_livepatch 
[  173.688557] livepatch: kernel.ftrace_enabled = 1 
[  173.697191] ===== TEST: basic function patching ===== 
[  173.710552] % modprobe test_klp_livepatch 
[  173.736251] livepatch: enabling patch 'test_klp_livepatch' 
[  173.744891] livepatch: 'test_klp_livepatch': starting patching transition 
[  175.220241] livepatch: 'test_klp_livepatch': patching complete 
[  175.304603] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  175.312101] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  176.203180] livepatch: 'test_klp_livepatch': unpatching complete 
[  176.235085] % rmmod test_klp_livepatch 
[  176.271506] ===== TEST: multiple livepatches ===== 
[  176.284660] % modprobe test_klp_livepatch 
[  176.310472] livepatch: enabling patch 'test_klp_livepatch' 
[  176.319109] livepatch: 'test_klp_livepatch': starting patching transition 
[  177.204134] livepatch: 'test_klp_livepatch': patching complete 
[  177.260022] test_klp_livepatch: this has been live patched 
[  177.279952] % modprobe test_klp_atomic_replace replace=0 
[  177.307201] livepatch: enabling patch 'test_klp_atomic_replace' 
[  177.316111] livepatch: 'test_klp_atomic_replace': starting patching transition 
[  178.164097] livepatch: 'test_klp_atomic_replace': patching complete 
[  178.256804] test_klp_livepatch: this has been live patched 
[  178.264743] test_klp_atomic_replace: this has been live patched 
[  178.271642] % echo 0 > /sys/kernel/livepatch/test_klp_atomic_replace/enabled 
[  178.279753] livepatch: 'test_klp_atomic_replace': starting unpatching transition 
[  179.147106] livepatch: 'test_klp_atomic_replace': unpatching complete 
[  179.203528] % rmmod test_klp_atomic_replace 
[  179.220222] test_klp_livepatch: this has been live patched 
[  179.228508] % echo 0 > /sys/kernel/livepatch/test_klp_livepatch/enabled 
[  179.236030] livepatch: 'test_klp_livepatch': starting unpatching transition 
[  180.236039] livepatch: 'test_klp_livepatch': unpatching complete 
[  180.261176] % rmmod test_klp_livepatch 
[  180.291601] ===== TEST: atomic replace livepatch ===== 
[  180.305059] % modprobe test_klp_livepatch 
[  180.331108] livepatch: enabling patch 'test_klp_livepatch' 
[  180.339725] livepatch: 'test_klp_livepatch': starting patching transition 
[  181.108192] livepatch: 'test_klp_livepatch': patching complete 
[  181.177154] test_klp_livepatch: this has been live patched 
[  181.192960] % modprobe test_klp_atomic_replace replace=1 
[  181.236911] livepatch: enabling patch 'test_klp_atomic_replace' 
[  181.245795] livepatch: 'test_klp_atomic_replace': starting patching transition 
[  182.220985] livepatch: 'test_klp_atomic_replace': patching complete 
[-- MARK -- Sun Oct  2 20:30:00 2022] 
[  182.291560] test_klp_atomic_replace: this has been live patched 
[  182.300172] % rmmod test_klp_livepatch 
[  182.322876] test_klp_atomic_replace: this has been live patched 
[  182.329828] % echo 0 > /sys/kernel/livepatch/test_klp_atomic_replace/enabled 
[  182.337840] livepatch: 'test_klp_atomic_replace': starting unpatching transition 
[  183.287937] livepatch: 'test_klp_atomic_replace': unpatching complete 
[  183.363174] % rmmod test_klp_atomic_replace 
[  183.778643] livepatch: kernel.ftrace_enabled = 1 
[  183.787297] ===== TEST: basic shadow variable API ===== 
[  183.801440] % modprobe test_klp_shadow_vars 
[  183.809999] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0 
[  183.817874] test_klp_shadow_vars:   got expected NULL result 
[  183.824220] test_klp_shadow_vars: shadow_ctor: PTR3 -> PTR2 
[  183.830446] 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 
[  183.844723] test_klp_shadow_vars: shadow_ctor: PTR6 -> PTR5 
[  183.850946] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR1, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR5 = PTR6 
[  183.864567] test_klp_shadow_vars: shadow_ctor: PTR8 -> PTR7 
[  183.870791] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR9, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR7 = PTR8 
[  183.884381] test_klp_shadow_vars: shadow_ctor: PTR11 -> PTR10 
[  183.890798] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR9, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR10 = PTR11 
[  183.904582] test_klp_shadow_vars: shadow_ctor: PTR13 -> PTR12 
[  183.910997] 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 
[  183.925555] test_klp_shadow_vars: shadow_ctor: PTR16 -> PTR15 
[  183.931978] test_klp_shadow_vars: klp_shadow_alloc(obj=PTR14, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR15 = PTR16 
[  183.945851] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR3 
[  183.953720] test_klp_shadow_vars:   got expected PTR3 -> PTR2 result 
[  183.960813] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6 
[  183.968682] test_klp_shadow_vars:   got expected PTR6 -> PTR5 result 
[  183.975775] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1234) = PTR8 
[  183.983656] test_klp_shadow_vars:   got expected PTR8 -> PTR7 result 
[  183.990739] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11 
[  183.998704] test_klp_shadow_vars:   got expected PTR11 -> PTR10 result 
[  184.005990] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1234) = PTR13 
[  184.014052] test_klp_shadow_vars:   got expected PTR13 -> PTR12 result 
[  184.021338] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16 
[  184.029401] test_klp_shadow_vars:   got expected PTR16 -> PTR15 result 
[  184.036688] 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 
[  184.050957] test_klp_shadow_vars:   got expected PTR3 -> PTR2 result 
[  184.058050] 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 
[  184.072319] test_klp_shadow_vars:   got expected PTR8 -> PTR7 result 
[  184.079414] 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 
[  184.093980] test_klp_shadow_vars:   got expected PTR13 -> PTR12 result 
[  184.101266] test_klp_shadow_vars: shadow_dtor(obj=PTR1, shadow_data=PTR3) 
[  184.108847] test_klp_shadow_vars: klp_shadow_free(obj=PTR1, id=0x1234, dtor=PTR17) 
[  184.117298] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0 
[  184.125158] test_klp_shadow_vars:   got expected NULL result 
[  184.131476] test_klp_shadow_vars: shadow_dtor(obj=PTR9, shadow_data=PTR8) 
[  184.139056] test_klp_shadow_vars: klp_shadow_free(obj=PTR9, id=0x1234, dtor=PTR17) 
[  184.147506] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1234) = PTR0 
[  184.155366] test_klp_shadow_vars:   got expected NULL result 
[  184.161684] test_klp_shadow_vars: shadow_dtor(obj=PTR14, shadow_data=PTR13) 
[  184.169458] test_klp_shadow_vars: klp_shadow_free(obj=PTR14, id=0x1234, dtor=PTR17) 
[  184.178006] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1234) = PTR0 
[  184.185969] test_klp_shadow_vars:   got expected NULL result 
[  184.192285] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6 
[  184.200154] test_klp_shadow_vars:   got expected PTR6 -> PTR5 result 
[  184.207246] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11 
[  184.215213] test_klp_shadow_vars:   got expected PTR11 -> PTR10 result 
[  184.222501] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16 
[  184.230565] test_klp_shadow_vars:   got expected PTR16 -> PTR15 result 
[  184.237848] test_klp_shadow_vars: klp_shadow_free_all(id=0x1235, dtor=PTR0) 
[  184.245620] test_klp_shadow_vars: klp_shadow_get(obj=PTR1, id=0x1235) = PTR0 
[  184.253489] test_klp_shadow_vars:   got expected NULL result 
[  184.259805] test_klp_shadow_vars: klp_shadow_get(obj=PTR9, id=0x1235) = PTR0 
[  184.267676] test_klp_shadow_vars:   got expected NULL result 
[  184.273993] test_klp_shadow_vars: klp_shadow_get(obj=PTR14, id=0x1235) = PTR0 
[  184.281973] test_klp_shadow_vars:   got expected NULL result 
[  184.290809] % rmmod test_klp_shadow_vars 
[  184.698418] livepatch: kernel.ftrace_enabled = 1 
[  184.707080] ===== TEST: system state modification ===== 
[  184.721037] % modprobe test_klp_state 
[  184.729026] livepatch: enabling patch 'test_klp_state' 
[  184.734900] test_klp_state: pre_patch_callback: vmlinux 
[  184.740743] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel 
[  184.750458] livepatch: 'test_klp_state': starting patching transition 
[  186.163849] test_klp_state: post_patch_callback: vmlinux 
[  186.169785] test_klp_state: fix_console_loglevel: fixing console_loglevel 
[  186.177364] livepatch: 'test_klp_state': patching complete 
[  186.204663] % echo 0 > /sys/kernel/livepatch/test_klp_state/enabled 
[  186.211730] livepatch: 'test_klp_state': initializing unpatching transition 
[  186.219534] test_klp_state: pre_unpatch_callback: vmlinux 
[  186.225562] test_klp_state: restore_console_loglevel: restoring console_loglevel 
[  186.233822] livepatch: 'test_klp_state': starting unpatching transition 
[  187.187750] test_klp_state: post_unpatch_callback: vmlinux 
[  187.193879] test_klp_state: free_loglevel_state: freeing space for the stored console_loglevel 
[  187.203498] livepatch: 'test_klp_state': unpatching complete 
[  187.257964] % rmmod test_klp_state 
[  187.281438] ===== TEST: taking over system state modification ===== 
[  187.295979] % modprobe test_klp_state 
[  187.304007] livepatch: enabling patch 'test_klp_state' 
[  187.309802] test_klp_state: pre_patch_callback: vmlinux 
[  187.315637] test_klp_state: allocate_loglevel_state: allocating space to store console_loglevel 
[  187.325348] livepatch: 'test_klp_state': starting patching transition 
[  188.147740] test_klp_state: post_patch_callback: vmlinux 
[  188.153676] test_klp_state: fix_console_loglevel: fixing console_loglevel 
[  188.161258] livepatch: 'test_klp_state': patching complete 
[  188.271776] % modprobe test_klp_state2 
[  188.280066] livepatch: enabling patch 'test_klp_state2' 
[  188.285905] livepatch: 'test_klp_state2': initializing patching transition 
[  188.293616] test_klp_state2: pre_patch_callback: vmlinux 
[  188.299545] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated 
[  188.310031] livepatch: 'test_klp_state2': starting patching transition 
[  189.235587] livepatch: 'test_klp_state2': completing patching transition 
[  189.243217] test_klp_state2: post_patch_callback: vmlinux 
[  189.249248] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change 
[  189.258473] livepatch: 'test_klp_state2': patching complete 
[  189.353046] % rmmod test_klp_state 
[  189.374408] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled 
[  189.381578] livepatch: 'test_klp_state2': initializing unpatching transition 
[  189.389505] test_klp_state2: pre_unpatch_callback: vmlinux 
[  189.395629] test_klp_state2: restore_console_loglevel: restoring console_loglevel 
[  189.403985] livepatch: 'test_klp_state2': starting unpatching transition 
[  191.155631] test_klp_state2: post_unpatch_callback: vmlinux 
[  191.161859] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel 
[  191.171575] livepatch: 'test_klp_state2': unpatching complete 
[  191.240408] % rmmod test_klp_state2 
[  191.270907] ===== TEST: compatible cumulative livepatches ===== 
[  191.285510] % modprobe test_klp_state2 
[  191.293739] livepatch: enabling patch 'test_klp_state2' 
[  191.299701] test_klp_state2: pre_patch_callback: vmlinux 
[  191.305633] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel 
[  191.315445] livepatch: 'test_klp_state2': starting patching transition 
[  192.179615] test_klp_state2: post_patch_callback: vmlinux 
[  192.185648] test_klp_state2: fix_console_loglevel: fixing console_loglevel 
[  192.193323] livepatch: 'test_klp_state2': patching complete 
[  192.262010] % modprobe test_klp_state3 
[  192.270342] livepatch: enabling patch 'test_klp_state3' 
[  192.276180] livepatch: 'test_klp_state3': initializing patching transition 
[  192.283893] test_klp_state3: pre_patch_callback: vmlinux 
[  192.289823] test_klp_state3: allocate_loglevel_state: space to store console_loglevel already allocated 
[  192.300312] livepatch: 'test_klp_state3': starting patching transition 
[  193.203459] livepatch: 'test_klp_state3': completing patching transition 
[  193.211091] test_klp_state3: post_patch_callback: vmlinux 
[  193.217113] test_klp_state3: fix_console_loglevel: taking over the console_loglevel change 
[  193.226342] livepatch: 'test_klp_state3': patching complete 
[  193.240580] % rmmod test_klp_state2 
[  193.268742] % modprobe test_klp_state2 
[  193.276971] livepatch: enabling patch 'test_klp_state2' 
[  193.282811] livepatch: 'test_klp_state2': initializing patching transition 
[  193.290524] test_klp_state2: pre_patch_callback: vmlinux 
[  193.296455] test_klp_state2: allocate_loglevel_state: space to store console_loglevel already allocated 
[  193.306943] livepatch: 'test_klp_state2': starting patching transition 
[  194.227395] livepatch: 'test_klp_state2': completing patching transition 
[  194.235036] test_klp_state2: post_patch_callback: vmlinux 
[  194.241057] test_klp_state2: fix_console_loglevel: taking over the console_loglevel change 
[  194.250289] livepatch: 'test_klp_state2': patching complete 
[  194.355722] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled 
[  194.362896] livepatch: 'test_klp_state2': initializing unpatching transition 
[  194.370805] test_klp_state2: pre_unpatch_callback: vmlinux 
[  194.376929] test_klp_state2: restore_console_loglevel: restoring console_loglevel 
[  194.385283] livepatch: 'test_klp_state2': starting unpatching transition 
[  195.187496] test_klp_state2: post_unpatch_callback: vmlinux 
[  195.193726] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel 
[  195.203438] livepatch: 'test_klp_state2': unpatching complete 
[  195.308661] % rmmod test_klp_state2 
[  195.324845] % rmmod test_klp_state3 
[  195.353170] ===== TEST: incompatible cumulative livepatches ===== 
[  195.367702] % modprobe test_klp_state2 
[  195.375996] livepatch: enabling patch 'test_klp_state2' 
[  195.381924] test_klp_state2: pre_patch_callback: vmlinux 
[  195.387857] test_klp_state2: allocate_loglevel_state: allocating space to store console_loglevel 
[  195.397663] livepatch: 'test_klp_state2': starting patching transition 
[  196.211461] test_klp_state2: post_patch_callback: vmlinux 
[  196.217496] test_klp_state2: fix_console_loglevel: fixing console_loglevel 
[  196.225172] livepatch: 'test_klp_state2': patching complete 
[  196.233664] % modprobe test_klp_state 
[  196.241768] livepatch: Livepatch patch (test_klp_state) is not compatible with the already installed livepatches. 
[  196.267043] modprobe: ERROR: could not insert 'test_klp_state': Invalid argument 
[  196.275411] % echo 0 > /sys/kernel/livepatch/test_klp_state2/enabled 
[  196.282576] livepatch: 'test_klp_state2': initializing unpatching transition 
[  196.290484] test_klp_state2: pre_unpatch_callback: vmlinux 
[  196.296621] test_klp_state2: restore_console_loglevel: restoring console_loglevel 
[  196.304973] livepatch: 'test_klp_state2': starting unpatching transition 
[  197.171423] test_klp_state2: post_unpatch_callback: vmlinux 
[  197.177652] test_klp_state2: free_loglevel_state: freeing space for the stored console_loglevel 
[  197.187365] livepatch: 'test_klp_state2': unpatching complete 
[  197.227588] % rmmod test_klp_state2