NILFS (loop4): unable to read secondary superblock (blocksize = 1024) NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:14620] Modules linked in: irq event stamp: 2744793 hardirqs last enabled at (2744792): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2744793): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2723496): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2723499): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2723499): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 14620 Comm: syz-executor.2 Not tainted 4.19.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ip6_xmit+0x82d/0x20a0 net/ipv6/ip6_output.c:292 Code: 0f 85 1c 14 00 00 48 8b 95 78 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 66 83 3c 02 00 0f 85 0b 14 00 00 49 8b 47 38 <48> 8d 7b 18 49 8b 57 40 4c 8b ad e0 fe ff ff 48 89 43 08 48 89 f8 RSP: 0018:ffff8880ba007530 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff88804ea429f0 RCX: 0000000000000001 RDX: 1ffff1101675d655 RSI: 0000000000000001 RDI: ffff88804ea429f8 RBP: ffff8880ba0076e8 R08: 0000000000000001 R09: 0000000000002060 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aa062e40 R13: 0000000000000040 R14: 0000000000000000 R15: ffff8880b3aeb270 FS: 00007f4cd017c700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a886809160 CR3: 00000000b4d99000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sctp_v6_xmit+0x377/0x710 net/sctp/ipv6.c:229 sctp_packet_transmit+0x1e21/0x3660 net/sctp/output.c:641 sctp_outq_flush_transports+0x19d/0x340 net/sctp/outqueue.c:1166 sctp_outq_flush net/sctp/outqueue.c:1214 [inline] sctp_outq_uncork+0x185/0x200 net/sctp/outqueue.c:777 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1815 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x72a/0x5110 net/sctp/sm_sideeffect.c:1170 sctp_generate_heartbeat_event+0x2af/0x490 net/sctp/sm_sideeffect.c:406 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:317 [inline] RIP: 0010:PageCompound include/linux/page-flags.h:156 [inline] RIP: 0010:page_mapcount include/linux/mm.h:640 [inline] RIP: 0010:zap_pte_range mm/memory.c:1351 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1463 [inline] RIP: 0010:zap_pud_range mm/memory.c:1492 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1513 [inline] RIP: 0010:unmap_page_range+0x1480/0x2c50 mm/memory.c:1534 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 39 15 00 00 83 ac 9c 00 01 00 00 01 31 f6 4c 89 ef e8 a3 92 04 00 4c 89 e8 <48> c1 e8 03 42 80 3c 30 00 0f 85 08 15 00 00 49 8b 5d 00 31 ff 48 RSP: 0018:ffff88805072f770 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffffea00023a2e80 RBX: 0000000000000000 RCX: 1ffff1100a18392e RDX: 0000000000000000 RSI: ffffffff818b8f3d RDI: 0000000000000282 RBP: ffffea00023a2e88 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000100 R13: ffffea00023a2e80 R14: dffffc0000000000 R15: 00007f4cd18e0000 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007f4cd017c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: fffffffffffffe00 RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffe3c3af3f R14: 00007f4cd017c300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14618 Comm: syz-executor.5 Not tainted 4.19.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109 Code: 3d 4c f9 3c 0b 01 7f 02 5d c3 89 ef 5d e9 d0 86 c9 06 48 c7 c7 00 77 65 8c e8 c4 d2 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48 RSP: 0018:ffff8880ba1074e8 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff89cfa1a0 RCX: 0000000000000020 RDX: 1ffffffff139f436 RSI: 0000000000000108 RDI: 0000000000000380 RBP: ffff8880ba11e280 R08: ffffffff8c663058 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66305b R12: 0000000000000108 R13: 0000000000000000 R14: ffff8880ba124c80 R15: ffff8880ba124cf0 FS: 00007f3e30f31700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a886815e28 CR3: 00000000b4d99000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:389 [inline] lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460 clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48 hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1552 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:152 [inline] RIP: 0010:unwind_next_frame+0x2eb/0x1400 arch/x86/kernel/unwind_orc.c:422 Code: 24 30 89 4c 24 28 44 89 5c 24 20 e8 cf cc 6e 00 48 8b 54 24 38 48 8b 74 24 30 8b 4c 24 28 44 8b 5c 24 20 8b 14 95 c8 76 17 8c <89> c8 48 8d 3c 40 4c 8d 8c 3f f8 ba 8c 8b 83 c2 01 49 81 f9 c6 76 RSP: 0018:ffff8880ba107708 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 1ffff11017420eea RCX: 00000000000203c5 RDX: 00000000000203cd RSI: 0000000000008ba8 RDI: ffffffff8c19a56c RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: ffff8880ba107897 R11: 0000000000074071 R12: ffff8880ba107880 R13: ffff8880ba10786d R14: ffff8880ba107838 R15: ffffffff818ba8a7 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node_trace+0x13c/0x3b0 mm/slab.c:3666 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 __netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407 netdev_alloc_skb include/linux/skbuff.h:2680 [inline] dev_alloc_skb include/linux/skbuff.h:2693 [inline] __ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4332 ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4443 ieee80211_beacon_get include/net/mac80211.h:4484 [inline] mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:PageHuge+0x2/0x160 mm/hugetlb.c:1373 Code: 00 eb bd e8 d0 42 04 00 eb 94 e8 c9 42 04 00 e9 68 ff ff ff e8 bf 42 04 00 e9 3b ff ff ff e8 b5 42 04 00 e9 0b ff ff ff 41 54 <55> 53 48 89 fb e8 a4 73 ce ff 48 89 da 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff8880526476f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81518a43 RDX: 1ffffd40002d2f77 RSI: 0000000000000004 RDI: ffffea0001697b80 RBP: ffffea0001697b80 R08: 0000000000000000 R09: ffffed1017424552 R10: ffff8880ba122a93 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea0001697b80 R15: 00007f3e336e3000 page_remove_file_rmap+0x3e/0xa30 mm/rmap.c:1215 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007f3e30f31188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: fffffffffffffe00 RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffef3299d1f R14: 00007f3e30f31300 R15: 0000000000022000