rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P18903/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=82137, q=2832 ncpus=2)
task:syz.2.4224      state:R  running task     stack:23808 pid:18903 tgid:18903 ppid:17400  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
 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:debug_lockdep_rcu_enabled+0x0/0x40 kernel/rcu/update.c:319
Code: 0a 8c 48 c7 c6 80 f6 0a 8c e8 9c e2 86 f5 90 0f 0b 90 90 90 eb c6 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 31 c0 83 3d e7 2f 4f 04 00 74 1e 83 3d 6a 61 4f 04 00
RSP: 0000:ffffc9000c3ffd58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880b863f3c0 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffffffff8c0ae4e0 RDI: ffffffff8c6131e0
RBP: ffffc9000c3ffe30 R08: ffffffff9430c887 R09: 1ffffffff2861910
R10: dffffc0000000000 R11: fffffbfff2861911 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88802b6f0000 R15: ffffe8ffffc22b00
 rcu_read_unlock include/linux/rcupdate.h:878 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1161 [inline]
 sched_mm_cid_remote_clear_old kernel/sched/core.c:10497 [inline]
 task_mm_cid_work+0x488/0x790 kernel/sched/core.c:10557
 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:329 [inline]
 irqentry_exit_to_user_mode+0xec/0x250 kernel/entry/common.c:231
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f9ad5a55845
RSP: 002b:00007ffc6b19ab60 EFLAGS: 00000293
RAX: 00007f9ad51aacf8 RBX: 00007f9ad51a9090 RCX: ffffffff8bc70f10
RDX: ffffffff8bc70f10 RSI: ffffffff8bc70f10 RDI: 00007f9ad51abf28
RBP: 00007f9ad51a7e68 R08: 00007f9ad51a9ec0 R09: 00007f9ad5d22000
R10: 00007f9ad4dfd008 R11: 000000000000000a R12: 00007f9ad51a7e60
R13: 000000000000001a R14: 00007f9ad4dfd008 R15: ffffffffffffffff
 </TASK>