rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2659 jiffies s: 2881 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4653 Comm: syz.3.74 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:perf_trace_preemptirq_template+0x238/0x330 include/trace/events/preemptirq.h:14
Code: 24 08 29 c2 49 8d 7e 08 48 89 f8 48 c1 e8 03 48 bb 00 00 00 00 00 fc ff df 0f b6 04 18 84 c0 0f 85 ad 00 00 00 41 89 54 24 08 <48> c7 c0 00 00 00 81 48 8b 54 24 18 29 c2 49 83 c6 0c 4c 89 f0 48
RSP: 0018:ffffc90000007580 EFLAGS: 00000046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: 0000000009400e86 RSI: 0000000000000000 RDI: ffffe8ffffcab008
RBP: ffffc90000007648 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: ffffe8ffffcab000
R13: ffff8880b8e35518 R14: ffffe8ffffcab000 R15: 1ffff92000000eb4
FS:  00007f8c203e96c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000a5000 CR3: 0000000055789000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 2d 97 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007740 EFLAGS: 00000206
RAX: 99fab00553c59300 RBX: 1ffff92000000ef0 RCX: 99fab00553c59300
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffc90000007840 R08: dffffc0000000000 R09: fffffbfff215c451
R10: fffffbfff215c451 R11: 1ffffffff215c450 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 netif_receive_skb_list_internal+0x9e1/0xc50 net/core/dev.c:5816
 gro_normal_list include/net/gro.h:433 [inline]
 napi_complete_done+0x37d/0x830 net/core/dev.c:6156
 virtqueue_napi_complete drivers/net/virtio_net.c:403 [inline]
 virtnet_poll+0x991/0x1150 drivers/net/virtio_net.c:1717
 __napi_poll+0xc0/0x460 net/core/dev.c:6590
 napi_poll net/core/dev.c:6657 [inline]
 net_rx_action+0x5b1/0xad0 net/core/dev.c:6771
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 common_interrupt+0xb5/0xd0 arch/x86/kernel/irq.c:242
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682
RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline]
RIP: 0010:lock_release+0xcd/0x910 kernel/locking/lockdep.c:5673
Code: 09 03 bc 0c 0f 83 22 05 00 00 41 89 de c1 eb 06 48 8d 3c dd 28 75 1f 8e be 08 00 00 00 e8 1b 7f 6d 00 4c 0f a3 35 db 00 bc 0c <73> 0d e8 ec 99 07 00 84 c0 0f 84 29 05 00 00 48 c7 c0 e4 a9 1f 8e
RSP: 0018:ffffc90008847800 EFLAGS: 00000257
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81637445
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1f7528
RBP: ffffc90008847908 R08: dffffc0000000000 R09: fffffbfff1c3eea6
R10: fffffbfff1c3eea6 R11: 1ffffffff1c3eea5 R12: 1ffff92001108f0c
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92001108f0c
 local_lock_release include/linux/local_lock_internal.h:38 [inline]
 folio_add_lru+0x51e/0xd50 mm/swap.c:527
 shmem_get_folio_gfp+0x1676/0x3400 mm/shmem.c:1976
 shmem_get_folio mm/shmem.c:2072 [inline]
 shmem_write_begin+0xee/0x3f0 mm/shmem.c:2556
 generic_perform_write+0x2db/0x560 mm/filemap.c:3846
 __generic_file_write_iter+0x172/0x430 mm/filemap.c:3974
 generic_file_write_iter+0xab/0x2e0 mm/filemap.c:4006
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x44c/0x960 fs/read_write.c:584
 ksys_write+0x143/0x240 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8c1f58eba9
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:00007f8c203e9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8c1f7d5fa0 RCX: 00007f8c1f58eba9
RDX: 00000000002a979d RSI: 0000200000000000 RDI: 000000000000000b
RBP: 00007f8c1f611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8c1f7d6038 R14: 00007f8c1f7d5fa0 R15: 00007fff7da609a8
 </TASK>