loop6: detected capacity change from 0 to 40 tmpfs: Bad value for 'nr_inodes' watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.0:7104] Modules linked in: irq event stamp: 5721921 hardirqs last enabled at (5721920): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5721921): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5671394): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (5671397): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 7104 Comm: syz-executor.0 Not tainted 6.2.0-rc7-next-20230210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_read_lock_held+0x4/0x50 Code: 90 90 90 90 90 90 f3 0f 1e fa e9 77 fe ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 07 c5 11 03 41 b8 01 00 00 00 85 c0 75 08 44 89 c0 e9 c9 ef 13 RSP: 0018:ffff88806ce09168 EFLAGS: 00000246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000100 RDX: ffff888015815040 RSI: ffffffff8390a91b RDI: 0000000000000007 RBP: ffffffff87f1bd40 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880446acdc0 R13: ffff8880446ace18 R14: ffff8880197d6401 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561a65b655f8 CR3: 0000000005482000 CR4: 0000000000350ef0 Call Trace: ip_output+0x280/0x8e0 ip_local_out+0x357/0x4c0 __ip_queue_xmit+0x852/0x1ac0 __tcp_transmit_skb+0x2ad5/0x3540 __tcp_send_ack.part.0+0x3b1/0x620 tcp_send_ack+0x81/0xa0 __tcp_ack_snd_check+0x156/0x9e0 tcp_rcv_established+0x91e/0x2150 tcp_v4_do_rcv+0x683/0x9e0 tcp_v4_rcv+0x2e61/0x3120 ip_protocol_deliver_rcu+0xba/0x490 ip_local_deliver_finish+0x2e0/0x4f0 ip_local_deliver+0x1b2/0x200 ip_sublist_rcv_finish+0x274/0x570 ip_list_rcv_finish.constprop.0+0x3a5/0x530 ip_list_rcv+0x2bd/0x3b0 __netif_receive_skb_list_core+0x695/0x8d0 netif_receive_skb_list_internal+0x6d0/0xce0 napi_complete_done+0x242/0x850 e1000_clean+0x9b5/0x2510 __napi_poll+0xb9/0x530 net_rx_action+0x8cd/0xbe0 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:percpu_counter_add_batch+0xcd/0x180 Code: 8f 27 ff 65 45 01 2e e8 31 8f 27 ff 31 ff 48 89 de e8 27 8b 27 ff 48 85 db 74 0b e8 1d 8f 27 ff e8 28 af 2e ff fb 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 04 8f 27 ff e8 ff 8e 27 ff e8 ea RSP: 0018:ffff8880447c76b8 EFLAGS: 00000286 RAX: 00000000003beb89 RBX: 0000000000000200 RCX: ffffffff812cb06f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8223e088 RBP: 0000000000000020 R08: 0000000000000001 R09: ffffffff87761947 R10: fffffbfff0eec328 R11: 0000000000000001 R12: ffff88800e492880 R13: ffffffffffffff7a R14: 0000000000000000 R15: ffffffffffffff7a unmap_page_range+0x1281/0x2da0 unmap_single_vma+0x194/0x2a0 unmap_vmas+0x233/0x390 exit_mmap+0x15b/0x6a0 mmput+0xd5/0x390 do_exit+0x9c6/0x2800 do_group_exit+0xd4/0x2a0 get_signal+0x23c8/0x2450 arch_do_signal_or_restart+0x79/0x590 exit_to_user_mode_prepare+0xeb/0x180 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ffa78cdfb19 Code: Unable to access opcode bytes at 0x7ffa78cdfaef. RSP: 002b:00007ffa76255188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: fffffffffffffe00 RBX: 00007ffa78df2f60 RCX: 00007ffa78cdfb19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007ffa78d39f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf644f46f R14: 00007ffa76255300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 233 Comm: sshd Not tainted 6.2.0-rc7-next-20230210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc50 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 d5 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6e 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff888019ccf908 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84489c1b RDX: ffffed1002dde194 RSI: 0000000000000004 RDI: ffff888016ef0c98 RBP: ffff888016ef0c98 R08: 0000000000000000 R09: ffff888016ef0c9b R10: ffffed1002dde193 R11: 0000000000000001 R12: 0000000000000003 R13: ffffed1002dde193 R14: 0000000000000001 R15: 1ffff11003399f22 FS: 00007ffb87ed6900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561a65b82648 CR3: 00000000160dc000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 lock_sock_nested+0x5f/0xf0 tcp_recvmsg+0xf8/0x640 inet_recvmsg+0x12b/0x6c0 sock_recvmsg+0x16c/0x1d0 sock_read_iter+0x2c1/0x3b0 vfs_read+0x806/0x940 ksys_read+0x1f4/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ffb883b8e8e Code: c0 e9 b6 fe ff ff 50 48 8d 3d 6e 18 0a 00 e8 b9 e7 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007fff0b1e79c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fff0b1eba5f RCX: 00007ffb883b8e8e RDX: 0000000000004000 RSI: 00007fff0b1e79d0 RDI: 0000000000000004 RBP: 0000000000000004 R08: 000000000000047c R09: 00007fff0b1f1080 R10: 00007fff0b1f10f0 R11: 0000000000000246 R12: 0000564ffe679ec0 R13: 00007fff0b1e79d0 R14: 0000000000000004 R15: 0000564ffcd29a80 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: f3 0f 1e fa endbr64 a: e9 77 fe ff ff jmpq 0xfffffe86 f: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: f3 0f 1e fa endbr64 * 2a: e8 07 c5 11 03 callq 0x311c536 <-- trapping instruction 2f: 41 b8 01 00 00 00 mov $0x1,%r8d 35: 85 c0 test %eax,%eax 37: 75 08 jne 0x41 39: 44 89 c0 mov %r8d,%eax 3c: e9 .byte 0xe9 3d: c9 leaveq 3e: ef out %eax,(%dx) 3f: 13 .byte 0x13