watchdog: BUG: soft lockup - CPU#1 stuck for 141s! [syz-executor.1:1357] Modules linked in: CPU: 1 PID: 1357 Comm: syz-executor.1 Not tainted 6.1.75-syzkaller-00003-g4d55129aea65 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__unwind_start+0x1ec/0x3a0 arch/x86/kernel/unwind_frame.c:407 Code: 08 48 89 df e8 e5 ac 84 00 48 8b 1b 48 83 c3 28 eb 03 48 89 eb 49 8d 4f 20 48 89 df 4c 89 ee 4c 89 fa e8 77 5f f7 ff 4c 89 ff <48> 89 de e8 7c f6 ff ff 4c 89 f9 48 c1 e9 03 48 b8 00 00 00 00 00 RSP: 0018:ffffc900001b0620 EFLAGS: 00000286 RAX: 0000000000000000 RBX: ffffc900001b0690 RCX: 0000000000000002 RDX: ffffc900001b1000 RSI: ffffffff864b2382 RDI: ffffc900001b06a0 RBP: ffffc900001b0690 R08: dffffc0000000000 R09: ffffc900001b06a0 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888111aee540 R14: ffffc900001b0700 R15: ffffc900001b06a0 FS: 00007fa7e2cb46c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0016c1010 CR3: 000000011fa96000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] kmem_cache_alloc_node+0x18a/0x2d0 mm/slub.c:3466 __alloc_skb+0xcc/0x2d0 net/core/skbuff.c:505 alloc_skb include/linux/skbuff.h:1283 [inline] ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:422 ndisc_send_rs+0x264/0x5f0 net/ipv6/ndisc.c:703 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3968 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1480 expire_timers kernel/time/timer.c:1525 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1796 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1809 __do_softirq+0x1d8/0x661 kernel/softirq.c:617 invoke_softirq kernel/softirq.c:472 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:7045 Code: 4c 89 e7 e8 80 38 be fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 94 25 51 fc fb bf 01 00 00 00 a9 e4 ff ff fa bf 01 00 00 00 e8 1e 27 51 fc 65 48 8b 1d f6 3c RSP: 0018:ffffc90001b86e80 EFLAGS: 00000246 RAX: 1ffff1102235de01 RBX: 1ffff92000370dd4 RCX: ffffffff85001800 RDX: 1ffffffff0f25c08 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90001b86f18 R08: ffffffff8792e040 R09: ffffffff8792e048 R10: ffffffff8792e058 R11: ffffffff8792e050 R12: ffffc90001b86ea0 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000370dd0 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:390 irqentry_exit+0x30/0x40 kernel/entry/common.c:433 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__kernel_text_address+0x0/0x40 kernel/extable.c:78 Code: 89 f0 5b 41 5e 5d c3 48 c7 c1 c0 e6 6e 87 80 e1 07 80 c1 03 38 c1 7c c3 48 c7 c7 c0 e6 6e 87 e8 f6 d1 6f 00 eb b5 0f 1f 40 00 <55> 48 89 e5 53 48 89 fb e8 33 00 00 00 85 c0 0f 95 c0 48 c7 c1 00 RSP: 0018:ffffc90001b87010 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90001b87088 RCX: 1ffff92000370e0f RDX: 1ffff92000370e0a RSI: ffffc90001b870d0 RDI: ffffffff816593f3 RBP: ffffc90001b87030 R08: dffffc0000000001 R09: ffffc90001b87040 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888111aee540 R13: ffffffff816594a0 R14: dffffc0000000000 R15: 1ffff92000370e11 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] slab_alloc mm/slub.c:3429 [inline] __kmem_cache_alloc_lru mm/slub.c:3436 [inline] kmem_cache_alloc+0x175/0x2c0 mm/slub.c:3445 kmem_cache_zalloc include/linux/slab.h:679 [inline] start_this_handle+0x351/0x2080 fs/jbd2/transaction.c:370 jbd2__journal_start+0x2ea/0x720 fs/jbd2/transaction.c:520 __ext4_journal_start_sb+0x24d/0x4b0 fs/ext4/ext4_jbd2.c:105 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_dirty_inode+0x8f/0x100 fs/ext4/inode.c:6071 __mark_inode_dirty+0x200/0xa60 fs/fs-writeback.c:2433 generic_update_time fs/inode.c:1903 [inline] inode_update_time fs/inode.c:1916 [inline] __file_update_time+0x241/0x260 fs/inode.c:2104 file_modified_flags+0x3e1/0x480 fs/inode.c:2177 file_modified+0x17/0x20 fs/inode.c:2193 ext4_write_checks fs/ext4/file.c:264 [inline] ext4_buffered_write_iter+0x309/0x640 fs/ext4/file.c:280 ext4_file_write_iter+0x194/0x1570 call_write_iter include/linux/fs.h:2258 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x902/0xeb0 fs/read_write.c:584 ksys_write+0x199/0x2c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa7e1e7dd69 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:00007fa7e2cb40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa7e1fabf80 RCX: 00007fa7e1e7dd69 RDX: 000000000000001b RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007fa7e1eca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa7e1fabf80 R15: 00007fffaf1e11b8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 1355 Comm: syz-executor.3 Not tainted 6.1.75-syzkaller-00003-g4d55129aea65 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:230 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline] RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline] RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:205 Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 eb d9 89 f6 31 d2 e8 8a 35 6a 01 5d c3 0f 1f 84 00 00 00 00 RSP: 0018:ffffc90000007088 EFLAGS: 00000046 RAX: 0000000000000129 RBX: ffffffff8650ca30 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000129 RDI: 0000000000000838 RBP: ffffc90000007088 R08: ffffffff8169e44b R09: ffffffff8169e33d R10: 0000000000000002 R11: ffff888111aea880 R12: 0000000000000020 R13: dffffc0000000000 R14: 0000000000000129 R15: dffffc0000000000 FS: 00007f148b1dc6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5521ab44c0 CR3: 000000011fbc7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:393 [inline] lapic_next_event+0x5f/0x70 arch/x86/kernel/apic/apic.c:478 clockevents_program_event+0x1c1/0x300 kernel/time/clockevents.c:334 tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x625/0xaa0 kernel/time/hrtimer.c:1824 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:update_stack_state+0x328/0x460 arch/x86/kernel/unwind_frame.c:243 Code: 38 00 74 08 4c 89 ef e8 36 b3 84 00 41 f6 45 00 03 4c 8b 75 b8 74 66 45 31 f6 e9 af 00 00 00 48 8b 45 d0 4c 8d 70 38 4c 89 f0 <48> c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 4c RSP: 0018:ffffc90000007350 EFLAGS: 00000246 RAX: ffffc900000074d8 RBX: ffffc900000074c8 RCX: ffffc90000007c08 RDX: 1ffff92000000e96 RSI: ffffc90000007bf8 RDI: ffffc900000074f8 RBP: ffffc90000007408 R08: ffffc90000007588 R09: 0000000000000007 R10: ffffc90000007590 R11: dffffc0000000001 R12: 1ffff92000000e9c R13: 0000000000000000 R14: ffffc900000074d8 R15: 0000000000000002 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] slab_alloc mm/slub.c:3429 [inline] __kmem_cache_alloc_lru mm/slub.c:3436 [inline] kmem_cache_alloc+0x175/0x2c0 mm/slub.c:3445 dst_alloc+0x164/0x1e0 net/core/dst.c:92 ip6_dst_alloc net/ipv6/route.c:344 [inline] icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3265 ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3968 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1480 expire_timers kernel/time/timer.c:1525 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1796 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1809 __do_softirq+0x1d8/0x661 kernel/softirq.c:617 invoke_softirq kernel/softirq.c:472 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:7045 Code: 4c 89 e7 e8 80 38 be fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 94 25 51 fc fb bf 01 00 00 00 a9 e4 ff ff fa bf 01 00 00 00 e8 1e 27 51 fc 65 48 8b 1d f6 3c RSP: 0018:ffffc90001b07660 EFLAGS: 00000246 RAX: 1ffff1102235d669 RBX: 1ffff92000360ed0 RCX: ffffffff85001800 RDX: 1ffffffff0f25c00 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90001b076e8 R08: ffffffff8792e000 R09: ffffffff8792e008 R10: ffffffff8792e018 R11: ffffffff8792e010 R12: ffffc90001b07680 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000360ecc raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:390 irqentry_exit+0x30/0x40 kernel/entry/common.c:433 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__should_failslab+0x2a/0xf0 mm/failslab.c:22 Code: 55 48 89 e5 41 57 41 56 41 54 53 89 f3 49 89 fe 48 c7 c0 28 7a 96 87 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 20 00 <74> 0c 48 c7 c7 28 7a 96 87 e8 b8 88 ff ff 31 c0 f7 c3 00 80 00 00 RSP: 0018:ffffc90001b077e8 EFLAGS: 00000246 RAX: 1ffffffff0f2cf45 RBX: 0000000000000dc0 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000dc0 RDI: ffff8881002a1380 RBP: ffffc90001b07808 R08: ffffffff81454cd4 R09: ffffed1021f9fb21 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffffff817631c1 R14: ffff8881002a1380 R15: ffff8881002a1380 should_failslab+0x9/0x20 mm/slab_common.c:1458 slab_pre_alloc_hook mm/slab.h:743 [inline] slab_alloc_node mm/slub.c:3341 [inline] slab_alloc mm/slub.c:3429 [inline] __kmem_cache_alloc_lru mm/slub.c:3436 [inline] kmem_cache_alloc+0x3b/0x2c0 mm/slub.c:3445 kmem_cache_zalloc include/linux/slab.h:679 [inline] taskstats_tgid_alloc kernel/taskstats.c:583 [inline] taskstats_exit+0x211/0xb50 kernel/taskstats.c:622 do_exit+0x9f7/0x2b80 kernel/exit.c:860 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025 get_signal+0x169d/0x1820 kernel/signal.c:2880 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f148a47dd69 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:00007f148b1dc178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f148a5abf88 RCX: 00007f148a47dd69 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f148a5abf88 RBP: 00007f148a5abf80 R08: 00007f148b1dc6c0 R09: 00007f148b1dc6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f148a5abf8c R13: 000000000000000b R14: 00007ffc9d7eba70 R15: 00007ffc9d7ebb58