rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...0: (1 GPs behind) idle=d54c/1/0x4000000000000000 softirq=127757/127758 fqs=2099 rcu: hardirqs softirqs csw/system rcu: number: 0 0 0 rcu: cputime: 0 0 0 ==> 52500(ms) rcu: (detected by 0, t=10505 jiffies, g=199645, q=1255 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9663 Comm: syz-executor.2 Not tainted 6.5.0-rc7-syzkaller-00013-g53663f4103ff #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:__lock_acquire+0x407/0x7f70 kernel/locking/lockdep.c:5078 Code: 89 d8 48 c1 e8 03 42 80 3c 00 00 45 89 cd 74 1a 48 89 df e8 2b 73 79 00 45 89 e9 49 b8 00 00 00 00 00 fc ff df 48 8b 74 24 60 <4c> 89 3b 4c 8b 7c 24 38 49 8d 5c f7 10 48 89 d8 48 c1 e8 03 48 89 RSP: 0018:ffffc900001e0820 EFLAGS: 00000046 RAX: 1ffff1100684815f RBX: ffff888034240af8 RCX: 0000000000000020 RDX: ffffffff8d329401 RSI: 0000000000000005 RDI: ffffffff8d329420 RBP: ffffc900001e0ae8 R08: dffffc0000000000 R09: 0000000000000020 R10: dffffc0000000000 R11: fffffbfff1d30efe R12: ffff888034240000 R13: 0000000000000020 R14: 0000000000000000 R15: ffffffff88dcdb65 FS: 00007f46304976c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d521000 CR3: 0000000033679000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761 rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:303 rcu_read_lock include/linux/rcupdate.h:749 [inline] advance_sched+0xa09/0xc80 net/sched/sch_taprio.c:996 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x59f/0xd10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline] __sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1115 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1109 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ce 95 1d f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 b3 e9 97 f6 65 8b 05 d4 c0 3c 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc9000b3a7900 EFLAGS: 00000206 RAX: aaa02dd465636a00 RBX: 1ffff92001674f24 RCX: ffffffff816bdd8a RDX: dffffc0000000000 RSI: ffffffff8b0a9860 RDI: 0000000000000001 RBP: ffffc9000b3a7990 R08: ffffffff907b4307 R09: 1ffffffff20f6860 R10: dffffc0000000000 R11: fffffbfff20f6861 R12: dffffc0000000000 R13: 1ffff92001674f20 R14: ffffc9000b3a7920 R15: 0000000000000246 clock_was_set+0x6a1/0x830 kernel/time/hrtimer.c:972 timekeeping_inject_offset+0x663/0x710 kernel/time/timekeeping.c:1395 do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2444 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline] __do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline] __se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline] __x64_sys_clock_adjtime+0x1e0/0x290 kernel/time/posix-timers.c:1162 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f462f67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f46304970c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131 RAX: ffffffffffffffda RBX: 00007f462f79bf80 RCX: 00007f462f67cae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f462f6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000004d R14: 00007f462f79bf80 R15: 00007ffc7c616938