rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=630c/1/0x4000000000000000 softirq=183823/183824 fqs=2
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P27721/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=281589, q=156 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 27722 Comm: syz-executor.0 Not tainted 6.5.0-rc6-syzkaller-00253-g9e6c269de404 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:do_raw_spin_unlock+0x0/0x8b0 kernel/locking/spinlock_debug.c:138
Code: ff ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 2c ff ff ff e8 b2 07 78 00 e9 22 ff ff ff e8 d8 4d 50 09 0f 1f 84 00 00 00 00 00 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 ff 48
RSP: 0018:ffffc900001e0c78 EFLAGS: 00000046
RAX: 8fc297f12095f800 RBX: ffff888023dad2e8 RCX: ffffc900001e0b03
RDX: 0000000000000001 RSI: ffffffff8b0aa9e0 RDI: ffff888023dad2e8
RBP: 177d0ae72fb10000 R08: ffffffff8e98772f R09: 1ffffffff1d30ee5
R10: dffffc0000000000 R11: fffffbfff1d30ee6 R12: dffffc0000000000
R13: 177d0ae72fb00000 R14: ffff88803564c800 R15: ffff888023dad340
FS: 00007f3cd4b476c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7b57d9bf84 CR3: 000000002e070000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_unlock+0x1e/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
advance_sched+0x9bd/0xc80 net/sched/sch_taprio.c:992
__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 ee 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:ffffc9000417f900 EFLAGS: 00000206
RAX: 8fc297f12095f800 RBX: 1ffff9200082ff24 RCX: ffffffff816bdd8a
RDX: dffffc0000000000 RSI: ffffffff8b0a9860 RDI: 0000000000000001
RBP: ffffc9000417f990 R08: ffffffff907b4307 R09: 1ffffffff20f6860
R10: dffffc0000000000 R11: fffffbfff20f6861 R12: dffffc0000000000
R13: 1ffff9200082ff20 R14: ffffc9000417f920 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: 0033:0x7f3cd3e7cae9
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:00007f3cd4b470c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f3cd3f9c050 RCX: 00007f3cd3e7cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f3cd3ec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3cd3f9c050 R15: 00007ffc1257bc68
task:syz-executor.3 state:R running task stack:26952 pid:27721 ppid:5050 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7022
irqentry_exit+0x57/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:mt_validate+0x22a3/0x5ca0 lib/maple_tree.c:7223
Code: 23 08 31 f7 48 8b 9c 24 68 01 00 00 4c 89 ef 48 89 de e8 10 38 d8 f6 49 39 dd 0f 87 f4 01 00 00 e8 f2 35 d8 f6 44 8b 74 24 28 <8b> 5c 24 18 48 8b 84 24 80 00 00 00 42 80 3c 38 00 74 0a 48 8b 7c
RSP: 0018:ffffc90004c07760 EFLAGS: 00000293
RAX: ffffffff8ab3823e RBX: 00007f7b577fffff RCX: ffff888086029dc0
RDX: 0000000000000000 RSI: 00007f7b577fffff RDI: 0000555556c05fff
RBP: ffffc90004c07950 R08: ffffffff8ab38230 R09: ffffffff8ab37e7b
R10: 0000000000000003 R11: ffff888086029dc0 R12: dffffc0000000000
R13: 0000555556c05fff R14: 0000000000000006 R15: dffffc0000000000
validate_mm+0xe7/0x500 mm/mmap.c:300
mmap_region+0x1c5f/0x2310 mm/mmap.c:2869
do_mmap+0x8cf/0xf80 mm/mmap.c:1363
vm_mmap_pgoff+0x1db/0x410 mm/util.c:543
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: 0033:0x7f7b57c7cb23
RSP: 002b:00007ffe3d75b968 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f7b56fff6c0 RCX: 00007f7b57c7cb23
RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffe3d75bc10
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10490 jiffies! g281589 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:26216 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted 6.5.0-rc6-syzkaller-00253-g9e6c269de404 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline]
RIP: 0010:smp_call_function_many_cond+0x1856/0x27d0 kernel/smp.c:835
Code: 03 84 c0 75 7e 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 de 17 0b 00 41 83 e5 01 4c 8b 6c 24 60 75 07 e8 1e 14 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 04 24
RSP: 0018:ffffc90000b87780 EFLAGS: 00000293
RAX: ffffffff8180a437 RBX: 1ffff1101732857d RCX: ffff8880162b5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000b87980 R08: ffffffff8180a402 R09: 1ffffffff20f6860
R10: dffffc0000000000 R11: fffffbfff20f6861 R12: ffff8880b9942be8
R13: ffff8880b983d0c8 R14: ffff8880b983d0c0 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd6d47a05c CR3: 000000000d130000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1003
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1997 [inline]
text_poke_bp_batch+0x615/0x960 arch/x86/kernel/alternative.c:2269
text_poke_flush arch/x86/kernel/alternative.c:2398 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2405
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
static_key_disable_cpuslocked+0xce/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate+0x1b8/0x250 mm/kfence/core.c:836
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304