rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=613/1/0x4000000000000000 softirq=61170/61171 fqs=396
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3732/1:b..l P17302/1:b..l
(detected by 0, t=10502 jiffies, g=75997, q=190)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 17317 Comm: syz-executor.0 Not tainted 5.15.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:kasan_check_range+0x3/0x290 mm/kasan/generic.c:188
Code: 48 89 c7 e8 1f 27 53 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 <41> 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5 0f 82
RSP: 0018:ffffc90000dd0a48 EFLAGS: 00000046
RAX: 0000000000000045 RBX: 000000000000116d RCX: ffffffff81629439
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fbd9328
RBP: 7b733d05420727b5 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff88803cfbc668 R14: ffff88803cfbbb80 R15: ffff88803cfbc6b8
FS: 00007fe09bbba6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe09d200000 CR3: 00000000745fb000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:197 [inline]
__lock_acquire+0x1209/0x1ff0 kernel/locking/lockdep.c:5008
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
advance_sched+0x47/0x940 net/sched/sch_taprio.c:716
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 52 fa a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 e7 59 31 f7 65 8b 05 38 96 dc 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900037bf920 EFLAGS: 00000206
RAX: b12c6439e2fb3d00 RBX: 1ffff920006f7f28 RCX: ffffffff8162e998
RDX: dffffc0000000000 RSI: ffffffff8a8b0b60 RDI: 0000000000000001
RBP: ffffc900037bf9b0 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920006f7f24 R14: ffffc900037bf940 R15: 0000000000000246
clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
do_clock_adjtime kernel/time/posix-timers.c:1149 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe09d67aae9
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:00007fe09bbba0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007fe09d79a120 RCX: 00007fe09d67aae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fe09d6c647a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe09d79a120 R15: 00007fff541fb4a8
task:syz-executor.2 state:R running task stack:24128 pid:17302 ppid: 3550 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6372
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6548
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6573
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock_irq+0x3c/0x40 kernel/locking/spinlock.c:202
spin_unlock_irq include/linux/spinlock.h:413 [inline]
loop_queue_work drivers/block/loop.c:1068 [inline]
loop_queue_rq+0x9f7/0xae0 drivers/block/loop.c:2201
__blk_mq_issue_directly block/blk-mq.c:1992 [inline]
__blk_mq_try_issue_directly+0x541/0x8b0 block/blk-mq.c:2048
blk_mq_request_issue_directly block/blk-mq.c:2096 [inline]
blk_mq_try_issue_list_directly+0x245/0x650 block/blk-mq.c:2114
blk_mq_sched_insert_requests+0x284/0x570 block/blk-mq-sched.c:512
blk_mq_flush_plug_list+0x5de/0x6b0 block/blk-mq.c:1949
blk_flush_plug_list+0x44b/0x490 block/blk-core.c:1740
blk_finish_plug+0x59/0x80 block/blk-core.c:1757
read_pages+0x4cb/0x8e0 mm/readahead.c:150
page_cache_ra_unbounded+0x7b0/0x930 mm/readahead.c:239
do_sync_mmap_readahead+0x610/0x800 mm/filemap.c:2987
filemap_fault+0x77a/0x1470 mm/filemap.c:3080
__do_fault+0x139/0x340 mm/memory.c:3898
do_read_fault mm/memory.c:4234 [inline]
do_fault mm/memory.c:4362 [inline]
handle_pte_fault mm/memory.c:4621 [inline]
__handle_mm_fault mm/memory.c:4756 [inline]
handle_mm_fault+0x376f/0x5950 mm/memory.c:4854
do_user_addr_fault arch/x86/mm/fault.c:1397 [inline]
handle_page_fault arch/x86/mm/fault.c:1485 [inline]
exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1541
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0010:__get_user_4+0x1c/0x30 arch/x86/lib/getuser.S:85
Code: 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 ba fd ef ff ff ff 7f 00 00 48 39 d0 0f 83 90 00 00 00 48 19 d2 48 21 d0 0f 01 cb <8b> 10 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 ba
RSP: 0018:ffffc9000370fc78 EFLAGS: 00050206
RAX: 0000000020000000 RBX: ffff888076e76c18 RCX: ffffc9000370fb03
RDX: ffffffffffffffff RSI: ffffffff8a8b1e00 RDI: ffffffff8ad87980
RBP: ffffc9000370fe78 R08: dffffc0000000000 R09: fffffbfff1bc8296
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880351e1000
R13: dffffc0000000000 R14: ffff888076e76c00 R15: 000000000000002f
sock_getsockopt+0xdd/0x22d0 net/core/sock.c:1439
__sys_getsockopt+0x23b/0x550 net/socket.c:2219
__do_sys_getsockopt net/socket.c:2238 [inline]
__se_sys_getsockopt net/socket.c:2235 [inline]
__x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2235
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f83568faae9
RSP: 002b:00007f8354e7c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007f8356a19f80 RCX: 00007f83568faae9
RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007f835694647a R08: 0000000020000000 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8356a19f80 R15: 00007ffca99b9318
task:kworker/0:18 state:R running task stack:24408 pid: 3732 ppid: 2 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6372
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6776
irqentry_exit+0x53/0x80 kernel/entry/common.c:426
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:seqcount_lockdep_reader_access+0x1dc/0x220 include/linux/seqlock.h:106
Code: f9 4d 85 ed 75 16 e8 b3 b7 05 f9 eb 15 e8 ac b7 05 f9 e8 67 ee a1 01 4d 85 ed 74 ea e8 9d b7 05 f9 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00
RSP: 0018:ffffc90004a27a40 EFLAGS: 00000293
RAX: ffffffff887a6a43 RBX: 0000000000000000 RCX: ffff88807cb8d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004a27af0 R08: ffffffff887a6a19 R09: fffffbfff1f7b233
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000046 R15: 1ffff92000944f48
nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:330 [inline]
gc_worker+0x30f/0x14b0 net/netfilter/nf_conntrack_core.c:1472
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: rcu_preempt kthread starved for 9710 jiffies! g75997 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27000 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1959
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2132
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_check_gp_kthread_starvation+0x1d2/0x240 kernel/rcu/tree_stall.h:481
print_other_cpu_stall+0x137a/0x14d0 kernel/rcu/tree_stall.h:586
check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
rcu_pending kernel/rcu/tree.c:3911 [inline]
rcu_sched_clock_irq+0x94f/0x1770 kernel/rcu/tree.c:2606
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:254 [inline]
tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:132 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:570
Code: 55 5a f7 48 83 e3 08 0f 85 0a 01 00 00 4c 8d 74 24 20 e8 84 d2 60 f7 0f 1f 44 00 00 e8 aa 51 5a f7 0f 00 2d c3 a9 bc 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 eb 03 a4 f7
RSP: 0018:ffffffff8c607b80 EFLAGS: 000002d3
RAX: ffffffff8a25d036 RBX: 0000000000000000 RCX: ffffffff8c6bd5c0
RDX: 0000000000000000 RSI: ffffffff8a8b0b60 RDI: ffffffff8ad87980
RBP: ffffffff8c607c10 R08: ffffffff8186a2e0 R09: fffffbfff18d7ab9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff18c0f70
R13: ffff888018a1e804 R14: ffffffff8c607ba0 R15: dffffc0000000000
acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:705
cpuidle_enter_state+0x521/0xef0 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:158 [inline]
cpuidle_idle_call kernel/sched/idle.c:239 [inline]
do_idle+0x3e4/0x670 kernel/sched/idle.c:306
cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:404
start_kernel+0x48c/0x535 init/main.c:1133
secondary_startup_64_no_verify+0xb1/0xbb