yuvald-sweet-security wrote: > Thanks @yuvald-sweet-security I am not sure whether I can add default v1->v3 > in llvm20 or not. But let me check anyway. > > Also, if the verification failure can be easily reproduced, could you submit > the test case, we can do some analysis to see why and maybe verifier could be > improved due to this. Thanks!
The specific case I was researching is in proprietary code, but I can see eBPF verifier/codegen degradations caused by moving from v1 to v3 in many public repos, e.g. try to compile Tracee (https://github.com/aquasecurity/tracee): ``` $ cd tracee/pkg/ebpf/c $ clang-20 -D__TARGET_ARCH_x86 -I. -I/usr/x86_64-linux-gnu/include -I/lib/modules/`uname -r`/build/include -target bpf -O2 -g -c ./tracee.bpf.c -mcpu=v1 -o /tmp/test-v1.o $ clang-20 -D__TARGET_ARCH_x86 -I. -I/usr/x86_64-linux-gnu/include -I/lib/modules/`uname -r`/build/include -target bpf -O2 -g -c ./tracee.bpf.c -mcpu=v3 -o /tmp/test-v3.o $ sudo /root/veristat /tmp/test-v1.o Processing 'test-v1.o'... File Program Verdict Duration (us) Insns States Program size Jited size --------- ---------------------------------------------- ------- ------------- ------ ------ ------------ ---------- test-v1.o cgroup_bpf_run_filter_skb success 2016 5446 368 1396 6388 test-v1.o cgroup_mkdir_signal success 124 281 17 199 933 test-v1.o cgroup_rmdir_signal success 116 276 17 194 915 test-v1.o cgroup_skb_egress success 3642 6425 251 3616 19650 test-v1.o cgroup_skb_ingress success 5026 6425 251 3616 19650 test-v1.o empty_kprobe success 24 2 0 2 23 test-v1.o kernel_write_magic_enter success 56 56 3 55 255 test-v1.o kernel_write_magic_return success 12523 29526 1020 4573 22096 test-v1.o lkm_seeker_kset_tail success 264372 437356 22484 14711 68504 test-v1.o lkm_seeker_mod_tree_tail success 92 111 9 206 671 test-v1.o lkm_seeker_modtree_loop success 168335 198161 12446 13947 65075 test-v1.o lkm_seeker_new_mod_only_tail success 80150 15844 1159 13138 52462 test-v1.o lkm_seeker_proc_tail failure 50660 189384 3693 13806 0 test-v1.o process_execute_failed_tail success 1606 5182 368 2572 12010 test-v1.o sched_process_exec_event_submit_tail success 2632 6923 471 2850 13651 test-v1.o sched_process_exec_signal success 3947 11860 796 5305 24294 test-v1.o sched_process_exit_signal success 280 378 23 280 1275 test-v1.o sched_process_fork_signal success 527 1383 75 1080 4563 test-v1.o send_bin success 1348 6804 452 3464 18131 test-v1.o send_bin_tp success 1137 6804 452 3464 18131 test-v1.o sys_dup_exit_tail success 2497 2912 188 2345 11493 test-v1.o sys_enter_init success 1619 610 43 574 2849 test-v1.o sys_enter_submit success 8256 6961 484 3774 19483 test-v1.o sys_exit_init success 745 507 34 477 2349 test-v1.o sys_exit_submit success 2742 4081 276 2370 12202 test-v1.o syscall__accept4 success 1416 2314 140 1679 8480 test-v1.o syscall__execve_enter failure 1496 2086 155 4033 0 test-v1.o syscall__execve_exit failure 768 2086 155 4034 0 test-v1.o syscall__execveat_enter failure 755 2087 155 4088 0 test-v1.o syscall__execveat_exit failure 754 2087 155 4089 0 test-v1.o syscall__init_module success 82 108 7 101 639 test-v1.o syscall_checker success 13500 8445 529 6642 13343 test-v1.o trace___register_chrdev success 47 27 1 29 139 test-v1.o trace_arch_prctl success 279 689 48 558 2683 test-v1.o trace_bpf_check success 961 1934 120 1267 5785 test-v1.o trace_call_usermodehelper failure 1008 3097 228 4642 0 test-v1.o trace_cap_capable success 1974 2316 147 1695 7461 test-v1.o trace_check_helper_call success 910 2040 125 1331 6032 test-v1.o trace_check_map_func_compatibility success 1018 2048 123 1326 6032 test-v1.o trace_chmod_common success 2962 6917 471 3704 16611 test-v1.o trace_commit_creds success 2478 2830 177 2217 9832 test-v1.o trace_debugfs_create_dir success 2022 3992 224 3065 13387 test-v1.o trace_debugfs_create_file success 2200 4081 228 3125 13864 test-v1.o trace_device_add success 1231 2475 156 1773 7889 test-v1.o trace_do_exit success 1058 2310 148 1643 7179 test-v1.o trace_do_init_module success 41 27 1 29 139 test-v1.o trace_do_mmap success 192 27 1 29 139 test-v1.o trace_do_sigaction success 1681 3311 199 2057 9499 test-v1.o trace_do_splice success 34 27 1 29 139 test-v1.o trace_do_truncate success 2044 4063 231 3161 14142 test-v1.o trace_dup success 255 689 48 558 2683 test-v1.o trace_dup2 success 583 689 48 558 2683 test-v1.o trace_dup3 success 319 689 48 558 2683 test-v1.o trace_exec_binprm success 3000 6903 467 3642 18836 test-v1.o trace_execute_finished failure 1291 2779 207 4861 0 test-v1.o trace_fd_install success 2741 6550 447 3413 15668 test-v1.o trace_file_modified success 175 107 7 114 380 test-v1.o trace_file_update_time success 1814 105 7 112 366 test-v1.o trace_filldir64 success 1523 2350 150 1686 7399 test-v1.o trace_filp_close success 3817 6507 447 3401 15604 test-v1.o trace_inotify_find_inode success 36 27 1 29 139 test-v1.o trace_kallsyms_lookup_name success 89 27 1 29 139 test-v1.o trace_kernel_write success 38 27 1 29 139 test-v1.o trace_load_elf_phdrs success 3650 8868 596 3861 17314 test-v1.o trace_mmap_alert success 4484 8337 554 4148 19263 test-v1.o trace_proc_create success 1179 2404 153 1709 7538 test-v1.o trace_process_vm_writev success 235 689 48 558 2683 test-v1.o trace_ptrace success 632 689 48 558 2683 test-v1.o trace_register_kprobe success 35 27 1 29 139 test-v1.o trace_ret__register_chrdev success 1256 2564 162 1807 8027 test-v1.o trace_ret_arch_prctl success 1921 4134 281 2342 11958 test-v1.o trace_ret_do_init_module success 2553 4161 259 2966 13387 test-v1.o trace_ret_do_mmap success 6177 8487 557 4064 18518 test-v1.o trace_ret_do_splice success 3744 7691 515 4173 18862 test-v1.o trace_ret_dup success 2017 4134 281 2342 11958 test-v1.o trace_ret_dup2 success 11822 4134 281 2342 11958 test-v1.o trace_ret_dup3 success 2809 4134 281 2342 11958 test-v1.o trace_ret_file_modified success 4267 7455 506 3953 18706 test-v1.o trace_ret_file_update_time success 3973 7385 505 3908 18532 test-v1.o trace_ret_inotify_find_inode success 3251 7120 485 3810 17082 test-v1.o trace_ret_kallsyms_lookup_name success 1185 2427 155 1735 7661 test-v1.o trace_ret_kernel_write success 4231 7494 512 3987 21369 test-v1.o trace_ret_kernel_write_tail success 21127 25666 1941 7241 39000 test-v1.o trace_ret_process_vm_writev success 8746 4134 281 2342 11958 test-v1.o trace_ret_ptrace success 1946 4134 281 2342 11958 test-v1.o trace_ret_register_kprobe success 1315 2559 160 1831 8062 test-v1.o trace_ret_sock_alloc_file success 823 1806 111 1316 6476 test-v1.o trace_ret_vfs_read success 4373 7494 512 3987 21369 test-v1.o trace_ret_vfs_read_tail success 10738 19518 1474 4531 24728 test-v1.o trace_ret_vfs_readv success 4152 7494 512 3987 21366 test-v1.o trace_ret_vfs_readv_tail success 9378 19504 1478 4539 24752 test-v1.o trace_ret_vfs_write success 3775 7494 512 3987 21366 test-v1.o trace_ret_vfs_write_tail success 15466 25666 1941 7241 39000 test-v1.o trace_ret_vfs_writev success 4094 7494 512 3987 21366 test-v1.o trace_ret_vfs_writev_tail success 20126 25292 1874 7163 38486 test-v1.o trace_security_bpf success 2974 4685 297 3318 17233 test-v1.o trace_security_bpf_map success 1436 2420 154 1719 7572 test-v1.o trace_security_bpf_prog success 2152 3980 247 1904 8817 test-v1.o trace_security_bprm_check failure 1033 2799 205 6717 0 test-v1.o trace_security_bprm_creds_for_exec success 3786 6824 462 3638 18806 test-v1.o trace_security_file_ioctl success 1816 3157 195 2271 10614 test-v1.o trace_security_file_mprotect success 14868 25144 1570 7532 38909 test-v1.o trace_security_file_open success 48591 93652 5090 10608 48878 test-v1.o trace_security_file_permission success 1201 2503 159 1805 7925 test-v1.o trace_security_inode_mknod success 2044 3884 220 3074 13591 test-v1.o trace_security_inode_rename success 2656 5199 285 4353 18881 test-v1.o trace_security_inode_symlink success 2319 3852 218 3065 13387 test-v1.o trace_security_inode_unlink success 2071 4023 233 3183 13953 test-v1.o trace_security_kernel_post_read_file success 3526 7043 482 3845 19694 test-v1.o trace_security_kernel_read_file success 3287 7303 492 3915 17602 test-v1.o trace_security_mmap_file success 17428 39070 1604 7674 34796 test-v1.o trace_security_path_notify success 3052 7194 486 3843 17475 test-v1.o trace_security_sb_mount success 3163 7219 482 3814 17223 test-v1.o trace_security_settime64 success 1170 2558 160 1810 7952 test-v1.o trace_security_sk_clone success 62 71 5 69 351 test-v1.o trace_security_socket_accept success 1663 2774 177 2171 10463 test-v1.o trace_security_socket_bind success 1441 2727 177 2019 9761 test-v1.o trace_security_socket_connect success 1489 2684 170 1928 9311 test-v1.o trace_security_socket_create success 1186 2504 157 1754 7768 test-v1.o trace_security_socket_listen success 1390 2825 173 2070 10024 test-v1.o trace_security_socket_recvmsg success 862 1853 113 1358 6692 test-v1.o trace_security_socket_sendmsg success 1099 1853 113 1358 6692 test-v1.o trace_security_socket_setsockopt success 1765 2853 178 2128 10252 test-v1.o trace_security_task_setrlimit success 1273 2523 159 1776 7888 test-v1.o trace_set_fs_pwd success 3927 7177 488 3800 17082 test-v1.o trace_sock_alloc_file success 71 68 5 76 300 test-v1.o trace_switch_task_namespaces success 1333 2809 178 2076 9277 test-v1.o trace_sys_enter success 2199 2371 153 1681 7391 test-v1.o trace_sys_exit success 2136 2385 153 1688 7420 test-v1.o trace_tracepoint_probe_register_prio_may_exist success 1701 2743 171 1938 8981 test-v1.o trace_utimes_common success 3153 7460 499 3883 17583 test-v1.o trace_vfs_read success 34 27 1 29 139 test-v1.o trace_vfs_readv success 41 27 1 29 139 test-v1.o trace_vfs_utimes success 3491 7460 499 3883 17583 test-v1.o trace_vfs_write success 38 27 1 29 139 test-v1.o trace_vfs_writev success 40 27 1 29 139 test-v1.o tracepoint__cgroup__cgroup_attach_task success 1341 2517 157 1797 7896 test-v1.o tracepoint__cgroup__cgroup_mkdir success 2275 2529 159 1801 7866 test-v1.o tracepoint__cgroup__cgroup_rmdir success 1253 2529 159 1801 7866 test-v1.o tracepoint__exec_test success 6377 10452 690 6059 27752 test-v1.o tracepoint__module__module_free success 1813 2430 154 1845 8190 test-v1.o tracepoint__module__module_load success 3817 7576 513 4163 18635 test-v1.o tracepoint__raw_syscalls__sys_enter success 537 30 2 29 236 test-v1.o tracepoint__raw_syscalls__sys_exit success 47 41 3 36 272 test-v1.o tracepoint__sched__sched_process_exec success 6346 12680 766 4439 23370 test-v1.o tracepoint__sched__sched_process_exit success 1876 2472 156 1803 7950 test-v1.o tracepoint__sched__sched_process_fork success 4367 5733 345 5015 18189 test-v1.o tracepoint__sched__sched_process_free success 72 46 3 46 255 test-v1.o tracepoint__sched__sched_switch success 1233 2597 162 1842 8191 test-v1.o tracepoint__task__task_rename success 1145 2442 155 1743 7717 test-v1.o uprobe_lkm_seeker success 4966 9861 509 9810 46314 test-v1.o uprobe_lkm_seeker_submitter success 751 1536 100 1402 5524 test-v1.o uprobe_mem_dump_trigger success 757 1525 103 1392 5826 test-v1.o uprobe_seq_ops_trigger success 1700 4325 287 2125 9847 test-v1.o uprobe_syscall_table_check success 143613 502821 8445 12761 50590 test-v1.o vfs_write_magic_enter success 54 56 3 55 255 test-v1.o vfs_write_magic_return success 9359 29526 1020 4573 22096 test-v1.o vfs_writev_magic_enter success 52 56 3 55 255 test-v1.o vfs_writev_magic_return success 9231 29733 1024 4685 22899 --------- ---------------------------------------------- ------- ------------- ------ ------ ------------ ---------- Done. Processed 1 files, 0 programs. Skipped 159 files, 0 programs. $ sudo /root/veristat /tmp/test-v3.o Processing 'test-v3.o'... File Program Verdict Duration (us) Insns States Program size Jited size --------- ---------------------------------------------- ------- ------------- ------ ------ ------------ ---------- test-v3.o cgroup_bpf_run_filter_skb success 2238 5427 368 1388 6317 test-v3.o cgroup_mkdir_signal failure 79 115 7 193 0 test-v3.o cgroup_rmdir_signal failure 73 110 7 188 0 test-v3.o cgroup_skb_egress success 3192 6547 251 3563 18647 test-v3.o cgroup_skb_ingress success 3275 6547 251 3563 18647 test-v3.o empty_kprobe success 24 2 0 2 23 test-v3.o kernel_write_magic_enter success 53 56 3 55 252 test-v3.o kernel_write_magic_return failure 702 1461 98 4441 0 test-v3.o lkm_seeker_kset_tail failure 14339 33296 744 14561 0 test-v3.o lkm_seeker_mod_tree_tail success 94 112 9 208 673 test-v3.o lkm_seeker_modtree_loop failure 1715 4533 157 13848 0 test-v3.o lkm_seeker_new_mod_only_tail failure 3847 11669 926 13135 0 test-v3.o lkm_seeker_proc_tail failure 816 633 40 13732 0 test-v3.o process_execute_failed_tail success 12175 26610 1934 2431 11300 test-v3.o sched_process_exec_event_submit_tail failure 386 321 22 2712 0 test-v3.o sched_process_exec_signal failure 463 727 43 5018 0 test-v3.o sched_process_exit_signal success 323 362 23 265 1191 test-v3.o sched_process_fork_signal success 577 1306 75 1037 4290 test-v3.o send_bin success 1061 5578 451 3448 17841 test-v3.o send_bin_tp success 1077 5578 451 3448 17841 test-v3.o sys_dup_exit_tail success 1648 2910 188 2317 11252 test-v3.o sys_enter_init success 314 611 43 576 2840 test-v3.o sys_enter_submit success 11305 27798 2053 3650 18832 test-v3.o sys_exit_init success 232 489 33 468 2316 test-v3.o sys_exit_submit failure 488 1254 81 2350 0 test-v3.o syscall__accept4 success 1503 2301 140 1656 8309 test-v3.o syscall__execve_enter failure 792 1954 155 3782 0 test-v3.o syscall__execve_exit failure 886 1946 155 3776 0 test-v3.o syscall__execveat_enter failure 784 1960 155 3843 0 test-v3.o syscall__execveat_exit failure 870 1943 155 3826 0 test-v3.o syscall__init_module success 76 110 8 101 643 test-v3.o syscall_checker success 4588 8499 532 6638 13322 test-v3.o trace___register_chrdev success 41 27 1 29 139 test-v3.o trace_arch_prctl success 389 690 48 559 2673 test-v3.o trace_bpf_check success 848 1939 120 1269 5760 test-v3.o trace_call_usermodehelper failure 669 1675 113 4412 0 test-v3.o trace_cap_capable success 1090 2303 147 1678 7339 test-v3.o trace_check_helper_call success 885 2024 125 1317 5944 test-v3.o trace_check_map_func_compatibility success 1298 2030 123 1313 5951 test-v3.o trace_chmod_common success 12663 28357 2039 3573 15979 test-v3.o trace_commit_creds success 1655 2805 176 2210 9747 test-v3.o trace_debugfs_create_dir failure 623 1261 84 2906 0 test-v3.o trace_debugfs_create_file failure 481 1265 84 2976 0 test-v3.o trace_device_add failure 476 1276 83 1767 0 test-v3.o trace_do_exit success 1078 2229 144 1642 7143 test-v3.o trace_do_init_module success 42 27 1 29 139 test-v3.o trace_do_mmap success 60 27 1 29 139 test-v3.o trace_do_sigaction success 1618 3186 195 2035 9210 test-v3.o trace_do_splice success 52 27 1 29 139 test-v3.o trace_do_truncate success 2120 3896 232 3008 13286 test-v3.o trace_dup success 247 690 48 559 2673 test-v3.o trace_dup2 success 257 690 48 559 2673 test-v3.o trace_dup3 success 257 690 48 559 2673 test-v3.o trace_exec_binprm success 4046 10508 752 3536 18320 test-v3.o trace_execute_finished failure 999 2673 206 4628 0 test-v3.o trace_fd_install success 12266 29817 2148 3294 15118 test-v3.o trace_file_modified success 67 107 7 114 376 test-v3.o trace_file_update_time success 66 105 7 112 363 test-v3.o trace_filldir64 success 1128 2284 146 1681 7331 test-v3.o trace_filp_close success 11391 29767 2147 3282 15057 test-v3.o trace_inotify_find_inode success 39 27 1 29 139 test-v3.o trace_kallsyms_lookup_name success 37 27 1 29 139 test-v3.o trace_kernel_write success 80 27 1 29 139 test-v3.o trace_load_elf_phdrs success 12417 30778 2229 3713 16404 test-v3.o trace_mmap_alert success 14513 30137 2184 4008 18468 test-v3.o trace_proc_create success 1148 2307 148 1701 7453 test-v3.o trace_process_vm_writev success 247 690 48 559 2673 test-v3.o trace_ptrace success 246 690 48 559 2673 test-v3.o trace_register_kprobe success 40 27 1 29 139 test-v3.o trace_ret__register_chrdev failure 420 1286 86 1818 0 test-v3.o trace_ret_arch_prctl failure 463 1193 81 2323 0 test-v3.o trace_ret_do_init_module failure 1147 2235 148 2952 0 test-v3.o trace_ret_do_mmap success 15312 30570 2184 3924 17686 test-v3.o trace_ret_do_splice failure 835 1511 99 4020 0 test-v3.o trace_ret_dup failure 581 1193 81 2323 0 test-v3.o trace_ret_dup2 failure 454 1193 81 2323 0 test-v3.o trace_ret_dup3 failure 445 1193 81 2323 0 test-v3.o trace_ret_file_modified success 13600 29092 2135 3768 17699 test-v3.o trace_ret_file_update_time success 13022 29303 2136 3800 17898 test-v3.o trace_ret_inotify_find_inode success 14193 28579 2055 3688 16495 test-v3.o trace_ret_kallsyms_lookup_name success 1203 2333 150 1727 7580 test-v3.o trace_ret_kernel_write success 12249 33908 2380 3852 20596 test-v3.o trace_ret_kernel_write_tail failure 23911 69324 5021 6978 0 test-v3.o trace_ret_process_vm_writev failure 504 1193 81 2323 0 test-v3.o trace_ret_ptrace failure 421 1193 81 2323 0 test-v3.o trace_ret_register_kprobe success 1244 2434 155 1811 7925 test-v3.o trace_ret_sock_alloc_file success 860 1809 111 1317 6442 test-v3.o trace_ret_vfs_read success 12208 33908 2380 3852 20596 test-v3.o trace_ret_vfs_read_tail failure 5179 14346 1101 4419 0 test-v3.o trace_ret_vfs_readv success 13480 33908 2380 3852 20593 test-v3.o trace_ret_vfs_readv_tail failure 5327 14448 1108 4454 0 test-v3.o trace_ret_vfs_write success 12264 33908 2380 3852 20593 test-v3.o trace_ret_vfs_write_tail failure 31831 69324 5021 6978 0 test-v3.o trace_ret_vfs_writev success 14108 33908 2380 3852 20593 test-v3.o trace_ret_vfs_writev_tail failure 27103 69207 4990 6927 0 test-v3.o trace_security_bpf failure 1152 2366 163 3300 0 test-v3.o trace_security_bpf_map success 1074 2324 149 1730 7519 test-v3.o trace_security_bpf_prog failure 465 1297 86 1897 0 test-v3.o trace_security_bprm_check failure 1148 2678 204 6351 0 test-v3.o trace_security_bprm_creds_for_exec success 11275 28380 2031 3517 18155 test-v3.o trace_security_file_ioctl failure 671 1427 95 2257 0 test-v3.o trace_security_file_mprotect success 38868 70891 4991 7215 37239 test-v3.o trace_security_file_open failure 1208 2139 141 10138 0 test-v3.o trace_security_file_permission success 1651 2542 162 1799 7873 test-v3.o trace_security_inode_mknod success 1892 3694 219 2929 12760 test-v3.o trace_security_inode_rename success 2673 5816 344 4014 16957 test-v3.o trace_security_inode_symlink failure 503 1261 84 2906 0 test-v3.o trace_security_inode_unlink success 2447 4488 286 2971 12785 test-v3.o trace_security_kernel_post_read_file success 9965 28494 2048 3682 18828 test-v3.o trace_security_kernel_read_file success 13696 29863 2116 3786 16926 test-v3.o trace_security_mmap_file failure 4228 11974 384 7406 0 test-v3.o trace_security_path_notify success 9457 28043 2054 3652 16370 test-v3.o trace_security_sb_mount failure 900 1266 85 3685 0 test-v3.o trace_security_settime64 success 1149 2424 154 1801 7848 test-v3.o trace_security_sk_clone success 110 71 5 69 348 test-v3.o trace_security_socket_accept success 1523 2795 178 2152 10280 test-v3.o trace_security_socket_bind failure 700 1890 129 2000 0 test-v3.o trace_security_socket_connect success 1373 2659 170 1926 9193 test-v3.o trace_security_socket_create success 1302 2392 152 1744 7661 test-v3.o trace_security_socket_listen success 1355 2783 172 2051 9853 test-v3.o trace_security_socket_recvmsg success 826 1856 113 1359 6671 test-v3.o trace_security_socket_sendmsg success 1017 1856 113 1359 6671 test-v3.o trace_security_socket_setsockopt success 1765 2840 178 2109 10075 test-v3.o trace_security_task_setrlimit success 1181 2408 154 1766 7781 test-v3.o trace_set_fs_pwd failure 551 1342 90 3679 0 test-v3.o trace_sock_alloc_file success 58 68 5 76 296 test-v3.o trace_switch_task_namespaces success 1671 2844 181 2060 9096 test-v3.o trace_sys_enter success 1076 2344 151 1676 7330 test-v3.o trace_sys_exit success 1151 2386 153 1683 7359 test-v3.o trace_tracepoint_probe_register_prio_may_exist failure 461 1273 84 1946 0 test-v3.o trace_utimes_common success 13381 28968 2069 3755 16966 test-v3.o trace_vfs_read success 39 27 1 29 139 test-v3.o trace_vfs_readv success 36 27 1 29 139 test-v3.o trace_vfs_utimes success 15867 28968 2069 3755 16966 test-v3.o trace_vfs_write success 38 27 1 29 139 test-v3.o trace_vfs_writev success 37 27 1 29 139 test-v3.o tracepoint__cgroup__cgroup_attach_task failure 400 1249 82 1787 0 test-v3.o tracepoint__cgroup__cgroup_mkdir failure 420 1253 82 1794 0 test-v3.o tracepoint__cgroup__cgroup_rmdir failure 419 1253 82 1794 0 test-v3.o tracepoint__exec_test success 15166 32548 2319 5971 27254 test-v3.o tracepoint__module__module_free failure 690 1273 84 1854 0 test-v3.o tracepoint__module__module_load failure 898 1575 105 4008 0 test-v3.o tracepoint__raw_syscalls__sys_enter success 33 30 2 29 234 test-v3.o tracepoint__raw_syscalls__sys_exit success 55 41 3 36 270 test-v3.o tracepoint__sched__sched_process_exec failure 699 2029 132 4243 0 test-v3.o tracepoint__sched__sched_process_exit success 1207 2476 157 1791 7835 test-v3.o tracepoint__sched__sched_process_fork success 5368 6713 401 5006 17921 test-v3.o tracepoint__sched__sched_process_free success 56 46 3 46 255 test-v3.o tracepoint__sched__sched_switch success 1210 2478 157 1827 8046 test-v3.o tracepoint__task__task_rename failure 410 1246 82 1754 0 test-v3.o uprobe_lkm_seeker success 4442 9816 508 9813 46305 test-v3.o uprobe_lkm_seeker_submitter failure 336 1146 76 1400 0 test-v3.o uprobe_mem_dump_trigger success 700 1580 107 1389 5769 test-v3.o uprobe_seq_ops_trigger failure 329 905 58 2163 0 test-v3.o uprobe_syscall_table_check success 157258 495540 8469 12633 49492 test-v3.o vfs_write_magic_enter success 52 56 3 55 252 test-v3.o vfs_write_magic_return failure 674 1461 98 4441 0 test-v3.o vfs_writev_magic_enter success 54 56 3 55 252 test-v3.o vfs_writev_magic_return failure 788 1469 99 4450 0 --------- ---------------------------------------------- ------- ------------- ------ ------ ------------ ---------- Done. Processed 1 files, 0 programs. Skipped 159 files, 0 programs. ``` As I said I haven't had the time to research this deeply, but I think that all cases are the result of kernel verifier getting less refutability from 32-bit jump instructions introduced in v3. But I might be wrong. https://github.com/llvm/llvm-project/pull/107008 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
