rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6950/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=14193, q=2864 ncpus=2)
task:syz.1.289       state:R  running task     stack:27360 pid:6950  tgid:6949  ppid:5853   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x184f/0x4c30 kernel/sched/core.c:6693
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7015
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:850 [inline]
RIP: 0010:class_rcu_constructor include/linux/rcupdate.h:1161 [inline]
RIP: 0010:sched_mm_cid_remote_clear_old kernel/sched/core.c:10392 [inline]
RIP: 0010:task_mm_cid_work+0x3ab/0x790 kernel/sched/core.c:10452
Code: c7 a0 7d 93 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 48 89 44 24 10 50 e8 90 48 0b 00 48 83 c4 08 e8 17 d0 62 0a 85 c0 <74> 3a e8 9e c8 15 00 84 c0 75 31 e8 05 d0 62 0a 85 c0 74 28 80 3d
RSP: 0018:ffffc9000b33fd20 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b873f5b8 RCX: ffff88807a470000
RDX: dffffc0000000000 RSI: ffffffff8c0adc40 RDI: ffffffff8c610ce0
RBP: ffffc9000b33fdf0 R08: ffffffff942d0807 R09: 1ffffffff285a100
R10: dffffc0000000000 R11: fffffbfff285a101 R12: dffffc0000000000
R13: 0000000000000001 R14: ffff8880b8700000 R15: ffffe8ffffd1c2b8
 task_work_run+0x251/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efda477e719
RSP: 002b:00007efda5608038 EFLAGS: 00000246 ORIG_RAX: 00000000000000cb
RAX: 0000000000000000 RBX: 00007efda4935f80 RCX: 00007efda477e719
RDX: 0000000020000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: 00007efda47f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efda4935f80 R15: 00007ffd3a658bc8
 </TASK>