rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=72c4/1/0x4000000000000000 softirq=67465/67465 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P19342/3:b..l
rcu: 	(detected by 1, t=10506 jiffies, g=53865, q=381 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5830 Comm: syz-executor Not tainted 6.13.0-rc4-syzkaller-00004-gf07044dd0df0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:mark_lock+0x8e/0xc60 kernel/locking/lockdep.c:4718
Code: 40 10 00 00 00 f3 c7 40 14 f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 08 01 00 00 31 c0 41 83 fe 09 0f 87 e3 00 00 00 <41> 83 fe 08 49 89 fc 48 89 f3 0f 84 97 00 00 00 41 bd 01 00 00 00
RSP: 0018:ffffc900000079f0 EFLAGS: 00000097
RAX: 0000000000000000 RBX: ffff888066df0b02 RCX: 1ffffffff2ddd00f
RDX: dffffc0000000000 RSI: ffff888066df0ae0 RDI: ffff888066df0000
RBP: ffffc90000007b28 R08: 0000000000000000 R09: fffffbfff2dca3c7
R10: ffffffff96e51e3f R11: 0000000000000001 R12: 0000000000000002
R13: ffff888066df0000 R14: 0000000000000008 R15: 1ffff92000000f44
FS:  00005555724c8500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa17ff8 CR3: 0000000033c4c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4670 [inline]
 __lock_acquire+0x9f1/0x3c40 kernel/locking/lockdep.c:5180
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xd8/0xc60 net/sched/sch_taprio.c:924
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/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+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:sk_alloc+0x6/0xb90 net/core/sock.c:2215
Code: ff 4c 89 e7 e8 ab cf fb f8 e9 79 fe ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 89 f7 41 56 45 89 c6 41 55 41 89 d5 41 54 49 89 cc 55 48 89 fd
RSP: 0018:ffffc90003347d80 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff90040de0
RDX: 0000000000000cc0 RSI: 0000000000000002 RDI: ffff888064448000
RBP: 0000000000000006 R08: 0000000000000000 R09: fffffbfff20be6aa
R10: ffffffff905f3557 R11: 0000000000000000 R12: ffffffff90040de0
R13: 0000000000000006 R14: 0000000000000001 R15: dffffc0000000000
 inet_create net/ipv4/af_inet.c:326 [inline]
 inet_create+0x3a1/0x10a0 net/ipv4/af_inet.c:252
 __sock_create+0x335/0x8d0 net/socket.c:1558
 sock_create net/socket.c:1616 [inline]
 __sys_socket_create net/socket.c:1653 [inline]
 __sys_socket+0x14f/0x260 net/socket.c:1700
 __do_sys_socket net/socket.c:1714 [inline]
 __se_sys_socket net/socket.c:1712 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1712
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab69787c47
Code: f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 29 00 00 00 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:00007ffd4546c088 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fab699452e0 RCX: 00007fab69787c47
RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 00007ffd4546c79c R08: 0000000000000000 R09: 00007ffd4546c4b7
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032
R13: 000000000011c9d8 R14: 0000000000000000 R15: 000000000000023f
 </TASK>
task:syz-executor    state:R  running task     stack:28432 pid:19342 tgid:19342 ppid:18289  flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:page_ref_add_unless.constprop.0+0xa2/0x390 include/linux/page_ref.h:237
Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c1 02 00 00 44 8b 65 34 <31> ff 44 89 e6 e8 94 6b ca ff 45 85 e4 0f 85 11 02 00 00 31 ed e8
RSP: 0000:ffffc900047879f8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffffea00012b1ab4 RCX: ffffffff81cfac24
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea00012b1ab4
RBP: ffffea00012b1a80 R08: 0000000000000000 R09: fffff94000256356
R10: ffffea00012b1ab7 R11: 0000000000000003 R12: 000000000000000f
R13: 000000000000013f R14: dffffc0000000000 R15: 1ffff920008f0f6e
 folio_ref_add_unless include/linux/page_ref.h:248 [inline]
 folio_try_get include/linux/page_ref.h:264 [inline]
 next_uptodate_folio+0xac/0x4a0 mm/filemap.c:3504
 filemap_map_pages+0x1c6/0x16b0 mm/filemap.c:3646
 do_fault_around mm/memory.c:5280 [inline]
 do_read_fault mm/memory.c:5313 [inline]
 do_fault mm/memory.c:5456 [inline]
 do_pte_missing+0xda6/0x3e00 mm/memory.c:3979
 handle_pte_fault mm/memory.c:5801 [inline]
 __handle_mm_fault+0x103c/0x2a40 mm/memory.c:5944
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6112
 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f53be53b960
RSP: 002b:00007ffd5a671728 EFLAGS: 00010246
RAX: 00007f53be74bca0 RBX: 0000000000000000 RCX: 00007f53be74bca0
RDX: 0000000000000000 RSI: 00007f53be74bca0 RDI: 000055558b6327e0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 000055558b6327d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000011c9d8 R14: 00007ffd5a6718b0 R15: 0000000000000028
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g53865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=87637
rcu: rcu_preempt kthread starved for 10506 jiffies! g53865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25568 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>