device geneve2 entered promiscuous mode device geneve2 entered promiscuous mode device geneve2 entered promiscuous mode INFO: rcu_preempt self-detected stall on CPU 1-...: (1 GPs behind) idle=63e/140000000000002/0 softirq=53233/53234 fqs=1 (t=10501 jiffies g=14787 c=14786 q=393) rcu_preempt kthread starved for 10499 jiffies! g14787 c14786 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 rcu_preempt R running task 29904 8 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x8a6/0x1d70 kernel/sched/core.c:3384 schedule+0x8d/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x4df/0xe50 kernel/time/timer.c:1746 rcu_gp_kthread+0xb3d/0x1ce0 kernel/rcu/tree.c:2255 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 NMI backtrace for cpu 1 CPU: 1 PID: 23764 Comm: syz-executor.1 Not tainted 4.14.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x17f lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline] rcu_dump_cpu_stacks+0x16d/0x1b8 kernel/rcu/tree.c:1396 print_cpu_stall kernel/rcu/tree.c:1542 [inline] check_cpu_stall kernel/rcu/tree.c:1610 [inline] __rcu_pending kernel/rcu/tree.c:3390 [inline] rcu_pending kernel/rcu/tree.c:3452 [inline] rcu_check_callbacks.cold+0x490/0xdaa kernel/rcu/tree.c:2792 update_process_times+0x29/0x60 kernel/time/timer.c:1590 tick_sched_handle.isra.0+0x73/0x150 kernel/time/tick-sched.c:165 tick_sched_timer+0x41/0x120 kernel/time/tick-sched.c:1223 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x24b/0xb90 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x117/0x5f0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:deref_stack_reg+0x2/0xc0 arch/x86/kernel/unwind_orc.c:292 RSP: 0018:ffff8880aed07300 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffff8880aed076c0 RBX: 1ffff11015da0e69 RCX: ffffffff88d1304c RDX: ffff8880aed07408 RSI: ffff8880aed076b8 RDI: ffff8880aed073c0 RBP: 0000000000000002 R08: ffffffff88d13050 R09: 0000000000000001 R10: 000000000001feb6 R11: 0000000000056071 R12: ffff8880aed073f5 R13: ffff8880aed073f8 R14: ffff8880aed07410 R15: ffff8880aed073c0 unwind_next_frame+0xc7b/0x1700 arch/x86/kernel/unwind_orc.c:429 __save_stack_trace+0x6b/0xd0 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc.part.0+0x4f/0xd0 mm/kasan/kasan.c:551 kmem_cache_alloc_node_trace+0x153/0x400 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x35/0xd0 net/core/skbuff.c:137 __alloc_skb+0xca/0x4c0 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] sctp_packet_transmit+0x30c/0x2d40 net/sctp/output.c:580 sctp_outq_flush+0xc55/0x2e10 net/sctp/outqueue.c:1187 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1787 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1179 [inline] sctp_do_sm+0x41f/0x49f0 net/sctp/sm_sideeffect.c:1150 sctp_generate_heartbeat_event+0x1da/0x3f0 net/sctp/sm_sideeffect.c:391 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279 expire_timers+0x233/0x4d0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1636 [inline] run_timer_softirq+0x1d8/0x5b0 kernel/time/timer.c:1649 __do_softirq+0x254/0x9bf kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5f0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:compound_head include/linux/page-flags.h:149 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:406 [inline] RIP: 0010:zap_pte_range mm/memory.c:1332 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1444 [inline] RIP: 0010:zap_pud_range mm/memory.c:1473 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1494 [inline] RIP: 0010:unmap_page_range+0xceb/0x1d80 mm/memory.c:1515 RSP: 0018:ffff88809e9e77d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffffea0002149f20 RBX: dffffc0000000000 RCX: ffff88809e9e79e0 RDX: 0000000000000000 RSI: ffff88809e9e79e0 RDI: ffff88809e9e79f8 RBP: ffffea000217d040 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880494dadf0 R11: ffff8880494da540 R12: 000000000042a000 R13: ffff88808b9ce148 R14: ffffea000217d060 R15: 0000000000429000 unmap_single_vma+0x147/0x2b0 mm/memory.c:1560 unmap_vmas+0x9d/0x160 mm/memory.c:1590 exit_mmap+0x271/0x4b0 mm/mmap.c:3056 __mmput kernel/fork.c:930 [inline] mmput kernel/fork.c:951 [inline] mmput+0xfa/0x3a0 kernel/fork.c:946 exit_mm kernel/exit.c:545 [inline] do_exit+0x93c/0x2ae0 kernel/exit.c:845 do_group_exit+0x100/0x2e0 kernel/exit.c:955 get_signal+0x385/0x1c90 kernel/signal.c:2423 do_signal+0x7c/0x15d0 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45ca59 RSP: 002b:00007fa20143ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: fffffffffffffe00 RBX: 000000000050d5a0 RCX: 000000000045ca59 RDX: 0000000000000078 RSI: 0000000020001240 RDI: 0000000000000004 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000d0d R14: 00000000004cf62c R15: 00007fa20143f6d4 watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.4:23760] Modules linked in: irq event stamp: 28196093 hardirqs last enabled at (28196092): [] restore_regs_and_return_to_kernel+0x0/0x2a hardirqs last disabled at (28196093): [] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793 softirqs last enabled at (1555082): [] __do_softirq+0x664/0x9bf kernel/softirq.c:314 softirqs last disabled at (1559759): [] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (1559759): [] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 CPU: 0 PID: 23760 Comm: syz-executor.4 Not tainted 4.14.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888082eba140 task.stack: ffff888089e18000 RIP: 0010:__lockdep_init_map+0x3e/0x560 kernel/locking/lockdep.c:3232 RSP: 0018:ffff8880aec07790 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: dffffc0000000000 RBX: ffff888082233c48 RCX: 0000000000000000 RDX: 1ffff1101044678d RSI: ffffffff871872e0 RDI: ffff888082233c70 RBP: ffff888082233c60 R08: ffff888082ebab18 R09: 0000000000000000 R10: ffff888082ebab08 R11: ffff888082eba140 R12: ffffffff8ae21860 R13: ffff888092b3d068 R14: 0000000000000000 R15: ffff8880960f7900 FS: 00007f704f00a700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7404fad8 CR3: 00000000a7e54000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_init+0x28/0x100 kernel/locking/spinlock_debug.c:24 neigh_alloc net/core/neighbour.c:330 [inline] __neigh_create+0x2dc/0x1980 net/core/neighbour.c:499 ip6_finish_output2+0x869/0x21b0 net/ipv6/ip6_output.c:117 ip6_finish_output+0x702/0xaf0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip6_output+0x1c5/0x660 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:462 [inline] NF_HOOK include/linux/netfilter.h:250 [inline] ndisc_send_skb+0x88b/0x1390 net/ipv6/ndisc.c:483 ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677 addrconf_rs_timer+0x280/0x5a0 net/ipv6/addrconf.c:3765 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279 expire_timers+0x233/0x4d0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1636 [inline] run_timer_softirq+0x1d8/0x5b0 kernel/time/timer.c:1649 __do_softirq+0x254/0x9bf kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5f0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x90 kernel/locking/spinlock.c:200 RSP: 0018:ffff888089e1f368 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff0f62cd3 RBX: ffff888082eba140 RCX: 1ffff110105d7551 RDX: dffffc0000000000 RSI: ffff888082ebaa68 RDI: ffff888082eba9c4 RBP: ffff8880aec2b580 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aec2b580 R13: ffff88806df0a500 R14: 0000000000000000 R15: ffff8880aec2bed0 finish_lock_switch kernel/sched/sched.h:1352 [inline] finish_task_switch+0x178/0x610 kernel/sched/core.c:2675 context_switch kernel/sched/core.c:2811 [inline] __schedule+0x8ae/0x1d70 kernel/sched/core.c:3384 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3611 retint_kernel+0x1b/0x2d RIP: 0010:inb arch/x86/include/asm/io.h:309 [inline] RIP: 0010:inb_p arch/x86/include/asm/io.h:309 [inline] RIP: 0010:vga_io_r include/video/vga.h:204 [inline] RIP: 0010:vga_io_rgfx include/video/vga.h:389 [inline] RIP: 0010:setmode drivers/video/fbdev/vga16fb.c:124 [inline] RIP: 0010:vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1162 [inline] RIP: 0010:vga16fb_imageblit+0x6eb/0x2160 drivers/video/fbdev/vga16fb.c:1261 RSP: 0018:ffff888089e1f560 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffffffff81277510 RBX: ffff8882191d79d0 RCX: ffffc90008c85000 RDX: 00000000000003ce RSI: ffffffff831fc6b9 RDI: ffff8882191d7a70 RBP: ffff888089e1f6f4 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1043242327 R11: ffff88821921193f R12: ffff888089e1f710 R13: ffff8882191d7580 R14: ffff888089e1f6f0 R15: 0000000000000000 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline] bit_putcs+0x65c/0xc00 drivers/video/fbdev/core/bitblit.c:188 fbcon_putcs+0x3bb/0x480 drivers/video/fbdev/core/fbcon.c:1301 fbcon_redraw.isra.0+0x24b/0x460 drivers/video/fbdev/core/fbcon.c:1764 fbcon_scroll+0x6b2/0x33c0 drivers/video/fbdev/core/fbcon.c:1917 con_scroll+0x294/0x310 drivers/tty/vt/vt.c:327 lf+0x226/0x270 drivers/tty/vt/vt.c:1134 do_con_write.part.0+0x1223/0x1a20 drivers/tty/vt/vt.c:2407 do_con_write drivers/tty/vt/vt.c:2218 [inline] con_write+0x33/0xc0 drivers/tty/vt/vt.c:2798 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x375/0xe20 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f1/0x6e0 drivers/tty/tty_io.c:1043 __vfs_write+0xe4/0x630 fs/read_write.c:480 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45ca59 RSP: 002b:00007f704f009c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050d5a0 RCX: 000000000045ca59 RDX: 0000000000000078 RSI: 0000000020001240 RDI: 0000000000000004 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000d0d R14: 00000000004cf62c R15: 00007f704f00a6d4 Code: d4 55 48 89 fd 48 83 c7 08 48 89 fa 53 48 c1 ea 03 48 83 ec 08 80 3c 02 00 0f 85 7f 04 00 00 48 8d 7d 10 48 c7 45 08 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 23764 Comm: syz-executor.1 Not tainted 4.14.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880494da540 task.stack: ffff88809e9e0000 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:42 [inline] RIP: 0010:stack_access_ok+0x6e/0x130 arch/x86/kernel/unwind_orc.c:283 RSP: 0018:ffff8880aed07778 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8880aed00000 RCX: ffff8880aed078c8 RDX: 0000000000000008 RSI: ffff8880aed07f20 RDI: ffff8880aed078c8 RBP: ffff8880aed07f20 R08: ffffffff88cc17b0 R09: 0000000000000001 R10: 0000000000012546 R11: 0000000000056071 R12: ffff8880aed078b8 R13: dffffc0000000000 R14: ffff8880aed07908 R15: ffff8880aed078b8 FS: 00007fa20143f700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000144b758 CR3: 000000006be7b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: deref_stack_reg+0x56/0xc0 arch/x86/kernel/unwind_orc.c:293 unwind_next_frame+0xc7b/0x1700 arch/x86/kernel/unwind_orc.c:429 __save_stack_trace+0x6b/0xd0 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc.part.0+0x4f/0xd0 mm/kasan/kasan.c:551 kmem_cache_alloc_node+0x146/0x400 mm/slab.c:3642 __alloc_skb+0x9a/0x4c0 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] new_skb+0x24/0x1c0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline] aoecmd_cfg+0x155/0x570 drivers/block/aoe/aoecmd.c:1392 discover_timer drivers/block/aoe/aoemain.c:44 [inline] discover_timer+0xc5/0x160 drivers/block/aoe/aoemain.c:21 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279 expire_timers+0x233/0x4d0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1636 [inline] run_timer_softirq+0x1d8/0x5b0 kernel/time/timer.c:1649 __do_softirq+0x254/0x9bf kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5f0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:compound_head include/linux/page-flags.h:149 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:406 [inline] RIP: 0010:zap_pte_range mm/memory.c:1332 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1444 [inline] RIP: 0010:zap_pud_range mm/memory.c:1473 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1494 [inline] RIP: 0010:unmap_page_range+0xceb/0x1d80 mm/memory.c:1515 RSP: 0018:ffff88809e9e77d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffffea0002149f20 RBX: dffffc0000000000 RCX: ffff88809e9e79e0 RDX: 0000000000000000 RSI: ffff88809e9e79e0 RDI: ffff88809e9e79f8 RBP: ffffea000217d040 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880494dadf0 R11: ffff8880494da540 R12: 000000000042a000 R13: ffff88808b9ce148 R14: ffffea000217d060 R15: 0000000000429000 unmap_single_vma+0x147/0x2b0 mm/memory.c:1560 unmap_vmas+0x9d/0x160 mm/memory.c:1590 exit_mmap+0x271/0x4b0 mm/mmap.c:3056 __mmput kernel/fork.c:930 [inline] mmput kernel/fork.c:951 [inline] mmput+0xfa/0x3a0 kernel/fork.c:946 exit_mm kernel/exit.c:545 [inline] do_exit+0x93c/0x2ae0 kernel/exit.c:845 do_group_exit+0x100/0x2e0 kernel/exit.c:955 get_signal+0x385/0x1c90 kernel/signal.c:2423 do_signal+0x7c/0x15d0 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45ca59 RSP: 002b:00007fa20143ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: fffffffffffffe00 RBX: 000000000050d5a0 RCX: 000000000045ca59 RDX: 0000000000000078 RSI: 0000000020001240 RDI: 0000000000000004 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000d0d R14: 00000000004cf62c R15: 00007fa20143f6d4 Code: fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 99 00 00 00 49 8d 7c 24 10 49 8b 5c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 f9 <48> c1 e9 03 80 3c 01 00 0f 85 86 00 00 00 48 39 eb 49 8b 44 24