rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=0a64/1/0x4000000000000000 softirq=18468/18470 fqs=1
rcu: 	(detected by 0, t=10502 jiffies, g=15453, q=1803 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6418 Comm: syz.2.17 Not tainted 6.12.0-syzkaller-11677-g2ba9f676d0a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__hrtimer_run_queues+0x67b/0xd10 kernel/time/hrtimer.c:1803
Code: 12 80 3d f5 70 19 0e 01 0f 85 61 01 00 00 e8 1c 90 12 00 4c 89 ff e8 64 2c e5 09 31 ff 44 89 ee e8 2a 94 12 00 45 85 ed 74 4e <49> bd 00 00 00 00 00 fc ff df 48 8b 84 24 b8 00 00 00 42 0f b6 04
RSP: 0018:ffffc90000a18620 EFLAGS: 00000002
RAX: 0000000000010100 RBX: ffff8880b872c9c8 RCX: 0000000000000001
RDX: ffff888020b49e00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000a18778 R08: ffffffff8182baf6 R09: fffff520001430a0
R10: dffffc0000000000 R11: fffff520001430a0 R12: 1ffff110170e593b
R13: 0000000000000001 R14: ffff88806069d340 R15: ffff8880b872c880
FS:  00007fd4b9d9f6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055de96cd5000 CR3: 000000002ecec000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 hrtimer_interrupt+0x3ff/0xa30 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10c/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kasan_check_range+0x8/0x290 mm/kasan/generic.c:188
Code: 48 89 df 48 c7 c6 ca e2 a0 8d e8 63 c1 e1 ff 0f 0b cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 54 53 <b0> 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02
RSP: 0018:ffffc90000a18990 EFLAGS: 00000246
RAX: 1ffffffff338694c RBX: ffff8881400003e8 RCX: ffffffff81ce0c2a
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881400003e8
RBP: 00fff5800000422e R08: ffffffff81ce0bde R09: 1ffffffff2757f11
R10: dffffc0000000000 R11: fffffbfff2757f12 R12: ffffea0001de15f4
R13: 1ffffd40003bc2be R14: ffff88813fffb540 R15: ffffea0001de15c0
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 acct_reclaim_writeback mm/internal.h:354 [inline]
 folio_end_writeback+0x28a/0x6d0 mm/filemap.c:1635
 ext4_finish_bio+0x789/0xdf0 fs/ext4/page-io.c:144
 ext4_end_bio+0x264/0x4c0
 blk_update_request+0x5e1/0x1150 block/blk-mq.c:981
 scsi_end_request+0x80/0x880 drivers/scsi/scsi_lib.c:631
 scsi_io_completion+0x1b9/0x430 drivers/scsi/scsi_lib.c:1067
 blk_complete_reqs block/blk-mq.c:1218 [inline]
 blk_done_softirq+0xfc/0x150 block/blk-mq.c:1223
 handle_softirqs+0x2d0/0x990 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf3/0x210 kernel/softirq.c:655
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:278
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:lockdep_unregister_key+0x567/0x600 kernel/locking/lockdep.c:6593
Code: a6 93 48 c7 c6 20 4f 71 81 e8 c5 c9 09 00 e8 10 de 09 00 e9 e5 fb ff ff e8 36 04 ed 09 41 f7 c7 00 02 00 00 74 d0 fb 45 84 f6 <75> cf eb e0 0f 0b 45 31 f6 e9 64 ff ff ff 0f 0b e9 a5 fe ff ff 0f
RSP: 0018:ffffc900032270c0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff92000644e20 RCX: ffffffff99bc6903
RDX: 0000000000000001 RSI: ffffffff8baae280 RDI: ffffffff8bfcea60
RBP: ffffc90003227188 R08: ffffffff93a7068f R09: 1ffffffff274e0d1
R10: dffffc0000000000 R11: fffffbfff274e0d2 R12: ffffc90003227100
R13: 1ffff92000644e1c R14: 0000000000000000 R15: 0000000000000a02
 __qdisc_destroy+0x165/0x400 net/sched/sch_generic.c:1085
 taprio_attach+0x24a/0x390 net/sched/sch_taprio.c:2149
 qdisc_graft+0x1336/0x1660 net/sched/sch_api.c:1175
 tc_modify_qdisc+0xf41/0x1e30 net/sched/sch_api.c:1793
 rtnetlink_rcv_msg+0x73b/0xcf0 net/core/rtnetlink.c:6926
 netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2542
 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
 netlink_unicast+0x7f2/0x990 net/netlink/af_netlink.c:1347
 netlink_sendmsg+0x8d9/0xcb0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:726
 ____sys_sendmsg+0x526/0x7d0 net/socket.c:2583
 ___sys_sendmsg net/socket.c:2637 [inline]
 __sys_sendmsg+0x265/0x350 net/socket.c:2669
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd4b8f80809
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd4b9d9f058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd4b9145fa0 RCX: 00007fd4b8f80809
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 00007fd4b8ff393e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd4b9145fa0 R15: 00007fff9573c028
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10495 jiffies! g15453 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=4890
rcu: rcu_preempt kthread starved for 10496 jiffies! g15453 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26152 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x184c/0x4bd0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x147/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x156/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2db/0x1320 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2ec/0x380 kernel/kthread.c:389
 ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>