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96053670002f05c8aae39a668bddd54eb253dca7 ("rcutorture: Make Trivial RCU ignore onoff_interval and shuffle_interval") https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev.2025.06.04a in testcase: rcutorture version: with following parameters: runtime: 300s test: default torture_type: trivial config: x86_64-randconfig-071-20250605 compiler: gcc-12 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +-------------------------------------------------------------------------------+------------+------------+ | | 964687d8d4 | 9605367000 | +-------------------------------------------------------------------------------+------------+------------+ | WARNING:at_kernel/rcu/rcutorture.c:#rcu_sync_torture_init_trivial[rcutorture] | 0 | 12 | | RIP:rcu_sync_torture_init_trivial[rcutorture] | 0 | 12 | +-------------------------------------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202506101435.e96fc5f7-lkp@intel.com The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250610/202506101435.e96fc5f7-lkp@intel.com [ 1078.501737][ T1445] torture module --- trivial: disable_onoff_at_boot=0 ftrace_dump_at_shutdown=0 verbose_sleep_frequency=0 verbose_sleep_duration=1 random_shuffle=0 [ 1078.531216][ T1445] ------------[ cut here ]------------ [ 1078.542757][ T1445] rcu_sync_torture_init_trivial: Non-zero onoff_interval (0) or shuffle_interval (3) breaks trivial RCU, resetting to zero [ 1078.543244][ T1445] WARNING: CPU: 0 PID: 1445 at kernel/rcu/rcutorture.c:990 rcu_sync_torture_init_trivial+0x42/0x5e [rcutorture] [ 1078.589843][ T1445] Modules linked in: rcutorture(+) torture ipmi_devintf processor drm fuse drm_panel_orientation_quirks font stm_p_basic [ 1078.614928][ T1445] CPU: 0 UID: 0 PID: 1445 Comm: modprobe Not tainted 6.15.0-rc1-00080-g96053670002f #1 PREEMPT(voluntary) [ 1078.636870][ T1445] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 1078.656604][ T1445] RIP: 0010:rcu_sync_torture_init_trivial+0x42/0x5e [rcutorture] [ 1078.672737][ T1445] Code: 00 89 d0 09 c8 74 33 80 3d 66 03 17 00 00 75 1c 48 c7 c6 c0 0a 3f c0 48 c7 c7 20 ba 3e c0 c6 05 4f 03 17 00 01 e8 f2 dc 83 e6 <0f> 0b 31 c0 89 05 29 3b 17 00 89 05 e3 29 16 00 5d 31 c0 31 d2 31 [ 1078.708709][ T1445] RSP: 0018:ffff8881bb48f6a0 EFLAGS: 00210246 [ 1078.720639][ T1445] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1078.736089][ T1445] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1078.751748][ T1445] RBP: ffff8881bb48f6a0 R08: 0000000000000000 R09: 0000000000000000 [ 1078.768592][ T1445] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffc06382a0 [ 1078.784896][ T1445] R13: ffffffffc03f0f80 R14: ffff8881bb48f730 R15: dffffc0000000000 [ 1078.801843][ T1445] FS: 0000000000000000(0000) GS:0000000000000000(0063) knlGS:00000000f79f1700 [ 1078.820215][ T1445] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 1078.833348][ T1445] CR2: 00000000f7e7e51c CR3: 00000001bb406000 CR4: 00000000000006b0 [ 1078.850385][ T1445] Call Trace: [ 1078.858560][ T1445] [ 1078.865009][ T1445] rcu_torture_init+0x2ee/0x1c88 [rcutorture] [ 1078.878454][ T1445] ? rcu_torture_fwd_prog_init+0x378/0x378 [rcutorture] [ 1078.892547][ T1445] ? rcu_torture_fwd_prog_init+0x378/0x378 [rcutorture] [ 1078.907288][ T1445] do_one_initcall+0xfc/0x316 [ 1078.915264][ T1445] ? kasan_save_alloc_info+0x3b/0x51 [ 1078.925474][ T1445] ? trace_initcall_level+0x8d/0x8d [ 1078.936365][ T1445] ? kasan_poison+0x57/0x63 [ 1078.945140][ T1445] ? kasan_unpoison+0x45/0x54 [ 1078.954319][ T1445] ? kasan_poison+0x57/0x63 [ 1078.963549][ T1445] ? __asan_register_globals+0x5e/0x73 [ 1078.973664][ T1445] do_init_module+0x228/0x584 [ 1078.983443][ T1445] load_module+0xf35/0x1332 [ 1079.041071][ T1445] ? layout_and_allocate+0x4ec/0x4ec [ 1079.053668][ T1445] ? __kasan_check_write+0x18/0x22 [ 1079.063917][ T1445] ? kernel_read_file+0x55a/0x59e [ 1079.074280][ T1445] ? mode_strip_umask+0xa0/0xa0 [ 1079.084161][ T1445] init_module_from_file+0xf6/0x13c [ 1079.094886][ T1445] ? init_module_from_file+0xf6/0x13c [ 1079.106003][ T1445] ? __ia32_sys_init_module+0x90/0x90 [ 1079.117160][ T1445] ? idempotent_init_module+0x2cb/0x5cd [ 1079.128590][ T1445] ? lock_release+0xaa/0xdb [ 1079.137666][ T1445] idempotent_init_module+0x2e9/0x5cd [ 1079.148390][ T1445] ? init_module_from_file+0x13c/0x13c [ 1079.159804][ T1445] ? __fget_light+0x89/0xe6 [ 1079.170011][ T1445] __do_sys_finit_module+0x77/0x9e [ 1079.181158][ T1445] __ia32_sys_finit_module+0x83/0x90 [ 1079.200369][ T1445] ia32_sys_call+0x22ae/0x26a2 [ 1079.210966][ T1445] __do_fast_syscall_32+0xb0/0xdb [ 1079.221826][ T1445] ? vm_mmap_pgoff+0x18b/0x1de [ 1079.231317][ T1445] ? randomize_page+0x62/0x62 [ 1079.240493][ T1445] ? rcu_read_unlock+0x5f/0x69 [ 1079.250537][ T1445] ? __kasan_check_write+0x18/0x22 [ 1079.260322][ T1445] ? fput+0x43/0x6e [ 1079.268784][ T1445] ? __kasan_check_read+0x15/0x1f [ 1079.278856][ T1445] ? lockdep_hardirqs_on_prepare+0x109/0x12c [ 1079.291496][ T1445] ? syscall_exit_to_user_mode+0xe6/0xf5 [ 1079.303131][ T1445] ? __do_fast_syscall_32+0xca/0xdb [ 1079.314090][ T1445] ? lockdep_hardirqs_on_prepare+0x109/0x12c [ 1079.331846][ T1445] ? irqentry_exit_to_user_mode+0xdc/0xeb [ 1079.343611][ T1445] do_fast_syscall_32+0x36/0x6e [ 1079.354071][ T1445] do_SYSENTER_32+0x23/0x27 [ 1079.363734][ T1445] entry_SYSENTER_compat_after_hwframe+0x58/0x5f [ 1079.376376][ T1445] RIP: 0023:0xf7f05579 [ 1079.385512][ T1445] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 [ 1079.421603][ T1445] RSP: 002b:00000000ffa4760c EFLAGS: 00200296 ORIG_RAX: 000000000000015e [ 1079.439014][ T1445] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000584e6eb0 [ 1079.459721][ T1445] RDX: 0000000000000000 RSI: 00000000584e7220 RDI: 00000000584e6fa0 [ 1079.476023][ T1445] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 1079.492738][ T1445] R10: 0000000000000000 R11: 0000000000200246 R12: 0000000000000000 [ 1079.508981][ T1445] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1079.525796][ T1445] [ 1079.533122][ T1445] irq event stamp: 7135 [ 1079.542197][ T1445] hardirqs last enabled at (7147): [] __up_console_sem+0x54/0x5d [ 1079.560760][ T1445] hardirqs last disabled at (7160): [] __up_console_sem+0x39/0x5d [ 1079.580657][ T1445] softirqs last enabled at (7088): [] handle_softirqs+0x4a4/0x54c [ 1079.603955][ T1445] softirqs last disabled at (7183): [] __do_softirq+0xf/0x13 [ 1079.622009][ T1445] ---[ end trace 0000000000000000 ]--- [ 1079.633479][ T1445] trivial-torture:--- Start of test: nreaders=1 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=0 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 test_boost_holdoff=0 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 stall_cpu_irqsoff=0 stall_cpu_block=0 stall_cpu_repeat=0 n_barrier_cbs=0 onoff_interval=0 onoff_holdoff=0 read_exit_delay=13 read_exit_burst=16 reader_flavor=1 nocbs_nthreads=0 nocbs_toggle=1000 test_nmis=0 preempt_duration=0 preempt_interval=1000 n_up_down=32 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki