rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 ticks this GP) idle=1514/1/0x4000000000000000 softirq=86904/86904 fqs=1
rcu: 	(detected by 1, t=10502 jiffies, g=148141, q=9 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2732 Comm: syz-executor.1 Not tainted 6.7.0-rc5-next-20231213-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x28/0xb0 kernel/rcu/tree.c:700
Code: 00 00 f3 0f 1e fa 55 53 65 ff 05 bb 62 93 7e e8 8e 2b 1a 09 48 c7 c3 68 69 03 00 83 f8 07 89 c5 77 7a 48 8d 3c ed 60 4a a8 8c <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75
RSP: 0018:ffffc90000007bd0 EFLAGS: 00000097
RAX: 0000000000000000 RBX: 0000000000036968 RCX: ffffffff81687fcb
RDX: fffffbfff1e73813 RSI: ffffffff8b2f6fc0 RDI: ffffffff8ca84a60
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1e73812
R10: ffffffff8f39c097 R11: 0000000000000002 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff92ba4948 R15: 0000000000000000
FS:  00007f8367e586c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000202c3030 CR3: 00000000394e1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x477/0x530 kernel/locking/lockdep.c:5725
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
 debug_object_activate+0x195/0x540 lib/debugobjects.c:708
 debug_hrtimer_activate kernel/time/hrtimer.c:422 [inline]
 debug_activate kernel/time/hrtimer.c:477 [inline]
 enqueue_hrtimer+0x25/0x320 kernel/time/hrtimer.c:1087
 __run_hrtimer kernel/time/hrtimer.c:1705 [inline]
 __hrtimer_run_queues+0xa0f/0xc20 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x10c/0x410 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_pc+0x48/0x60 kernel/kcov.c:212
Code: f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00 00 83 f8 02 75 20 48 8b 8a e0 15 00 00 8b 92 dc 15 00 00 48 8b 01 <48> 83 c0 01 48 39 d0 73 07 48 89 01 48 89 34 c1 c3 0f 1f 80 00 00
RSP: 0018:ffffc9000aba6d60 EFLAGS: 00000246
RAX: 000000000003ffff RBX: ffffc9000aba6e30 RCX: ffffc9000581a000
RDX: 0000000000040000 RSI: ffffffff813a33d2 RDI: ffffc9000aba6e30
RBP: ffffc9000aba79f8 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000002 R11: dffffc0000000000 R12: ffffc9000aba6e38
R13: ffffc9000aba7a00 R14: ffffffff906e2eee R15: 0000000000000002
 stack_access_ok+0x22/0x270 arch/x86/kernel/unwind_orc.c:390
 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
 unwind_next_frame+0xd85/0x2390 arch/x86/kernel/unwind_orc.c:585
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 save_stack+0x15e/0x1f0 mm/page_owner.c:130
 __set_page_owner+0x1f/0x60 mm/page_owner.c:196
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1540
 prep_new_page mm/page_alloc.c:1547 [inline]
 get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3355
 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4611
 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
 vma_alloc_folio+0xad/0x220 mm/mempolicy.c:2172
 folio_prealloc mm/memory.c:1001 [inline]
 wp_page_copy mm/memory.c:3131 [inline]
 do_wp_page+0x172a/0x3750 mm/memory.c:3518
 handle_pte_fault mm/memory.c:5151 [inline]
 __handle_mm_fault+0x1f7c/0x48f0 mm/memory.c:5276
 handle_mm_fault+0x476/0xa00 mm/memory.c:5441
 do_user_addr_fault+0x3cf/0x1000 arch/x86/mm/fault.c:1413
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:__put_user_nocheck_4+0x7/0x10 arch/x86/lib/putuser.S:97
Code: 01 ca c3 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb 89 01 31 c9 0f 01 ca c3 0f 1f 80 00 00 00 00 f3 0f 1e fa 0f 01 cb <89> 01 31 c9 0f 01 ca c3 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09
RSP: 0018:ffffc9000aba79f8 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000202c3030
RDX: 0000000000040000 RSI: ffffffff886d3a3a RDI: 0000000000000005
RBP: ffffc9000aba7db0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000202c3000 R14: ffffc9000aba7df4 R15: 0000000000000002
 ____sys_recvmsg+0x2f5/0x5c0 net/socket.c:2814
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2843
 do_recvmmsg+0x2af/0x740 net/socket.c:2937
 __sys_recvmmsg net/socket.c:3016 [inline]
 __do_sys_recvmmsg net/socket.c:3039 [inline]
 __se_sys_recvmmsg net/socket.c:3032 [inline]
 __x64_sys_recvmmsg+0x235/0x290 net/socket.c:3032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f836707cba9
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:00007f8367e580c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f836719c050 RCX: 00007f836707cba9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f83670c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f836719c050 R15: 00007ffdc93dba38
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g148141 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27872 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5399 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6726
 __schedule_loop kernel/sched/core.c:6801 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6816
 schedule_timeout+0x136/0x290 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0x245/0x380 kernel/rcu/tree.c:1830
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 2836 Comm: syz-executor.0 Not tainted 6.7.0-rc5-next-20231213-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x4e9/0x1570 kernel/smp.c:855
Code: 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 7e c7 0b 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 44 0e 00 00 8b 43 08 31 ff 83 e0 01 41
RSP: 0018:ffffc9000abcf958 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880b9844240 RCX: ffffc90003aa9000
RDX: 0000000000040000 RSI: ffffffff817c4a32 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffffed1017308849
R13: 0000000000000001 R14: ffff8880b9844248 R15: ffff8880b993d8c0
FS:  00007fc42696a6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a37000 CR3: 000000004a45c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 clock_was_set+0x646/0x850 kernel/time/hrtimer.c:976
 timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1395
 do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
 __do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fc425c7cba9
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:00007fc42696a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007fc425d9bf80 RCX: 00007fc425c7cba9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fc425cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc425d9bf80 R15: 00007ffeda72cf58
 </TASK>