panic: kernel diagnostic assertion "ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/netinet/if_ether.c", line 776 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 136998 11749 0 0x1000 0x4080000 1 syz-executor.2 *507869 21834 0 0x14000 0x40000200 0K softclock db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a8820) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82620c5c,ffffffff8261f1db,308,ffffffff825798e6) at __assert+0x25 sys/kern/subr_prf.c:157 arptfree(fffffd80682dc328) at arptfree+0x12e sys/netinet/if_ether.c:776 arptimer(ffffffff82aef8f0) at arptimer+0x88 sys/netinet/if_ether.c:135 timeout_run(ffffffff82aef8f0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_thread(ffff8000211e87e0) at softclock_thread+0x134 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: 8 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/netinet/if_ether.c", line 776 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a8820) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82620c5c,ffffffff8261f1db,308,ffffffff825798e6) at __assert+0x25 sys/kern/subr_prf.c:157 arptfree(fffffd80682dc328) at arptfree+0x12e sys/netinet/if_ether.c:776 arptimer(ffffffff82aef8f0) at arptimer+0x88 sys/netinet/if_ether.c:135 timeout_run(ffffffff82aef8f0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_thread(ffff8000211e87e0) at softclock_thread+0x134 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000211f5310 rbx 0xffffffff82925b8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff8000211e87e0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x260720bcab11d6be r11 0x3e54dc6e9215fb2a r12 0xffffffff82925990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff8142b318 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000211f5300 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (softclock) pid=507869 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000211e8a80,0xffff8000211e82b0 process=0xffff8000ffffcc90 user=0xffff8000211f0000, vmspace=0xffffffff82a6d988 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56036 60531 438 0 2 0x480 syz-executor.3 56036 212509 438 0 3 0x4000080 fsleep syz-executor.3 56036 325236 438 0 2 0x4000000 syz-executor.3 56036 121684 438 0 3 0x4000080 fsleep syz-executor.3 11749 291130 41160 0 3 0x3000 suspend syz-executor.2 11749 136998 41160 0 7 0x4081000 syz-executor.2 41709 71834 87751 0 2 0x480 syz-executor.5 41709 446894 87751 0 3 0x4000080 netio syz-executor.5 41709 332414 87751 0 3 0x4000080 fsleep syz-executor.5 41709 147760 87751 0 3 0x4000080 fsleep syz-executor.5 92649 29103 94338 0 3 0x82 piperd syz-executor.7 438 248895 94338 0 2 0x482 syz-executor.3 41160 128714 94338 0 2 0x482 syz-executor.2 55882 35187 94338 0 2 0x2 syz-executor.1 24493 462339 0 0 3 0x14280 nfsidl nfsio 48071 179793 0 0 3 0x14280 nfsidl nfsio 69923 314509 0 0 3 0x14280 nfsidl nfsio 52757 114092 0 0 3 0x14280 nfsidl nfsio 43790 61859 0 0 3 0x14280 nfsidl nfsio 82207 126860 0 0 3 0x14280 nfsidl nfsio 11270 490515 0 0 3 0x14280 nfsidl nfsio 8016 100401 0 0 3 0x14280 nfsidl nfsio 39806 432659 0 0 3 0x14280 nfsidl nfsio 99538 419487 0 0 3 0x14280 nfsidl nfsio 32241 481479 0 0 3 0x14280 nfsidl nfsio 99423 339807 0 0 3 0x14280 nfsidl nfsio 82525 203911 0 0 3 0x14280 nfsidl nfsio 87408 77451 0 0 3 0x14280 nfsidl nfsio 36920 487987 0 0 3 0x14280 nfsidl nfsio 69692 211771 0 0 3 0x14280 nfsidl nfsio 31863 480605 0 0 3 0x14280 nfsidl nfsio 57302 222846 0 0 3 0x14280 nfsidl nfsio 95073 287367 0 0 3 0x14280 nfsidl nfsio 43305 465437 0 0 3 0x14280 nfsidl nfsio 19275 232463 1 0 3 0 vmmaplk syz-executor.0 19275 133929 1 0 3 0x4000000 vmmaplk syz-executor.0 19275 193327 1 0 3 0x4000000 vmmaplk syz-executor.0 70955 91434 1 0 3 0x100083 ttyopn getty 75070 358044 0 0 3 0x14200 bored sosplice 93327 90892 94338 0 2 0x2 syz-executor.6 87751 324153 94338 0 2 0x482 syz-executor.5 94338 499807 17020 0 3 0x82 thrsleep syz-fuzzer 94338 404800 17020 0 2 0x4000482 syz-fuzzer 94338 143766 17020 0 3 0x4000082 wait syz-fuzzer 94338 402529 17020 0 2 0x4000002 syz-fuzzer 94338 150926 17020 0 3 0x4000082 thrsleep syz-fuzzer 94338 502463 17020 0 3 0x4000082 kqread syz-fuzzer 94338 180658 17020 0 2 0x4000002 syz-fuzzer 94338 366880 17020 0 3 0x4000082 wait syz-fuzzer 94338 134284 17020 0 3 0x4000082 thrsleep syz-fuzzer 94338 72628 17020 0 3 0x4000082 thrsleep syz-fuzzer 94338 198449 17020 0 3 0x4000082 wait syz-fuzzer 94338 252225 17020 0 3 0x4000082 wait syz-fuzzer 94338 456657 17020 0 3 0x4000082 thrsleep syz-fuzzer 94338 240993 17020 0 3 0x4000082 wait syz-fuzzer 94338 219458 17020 0 3 0x4000082 wait syz-fuzzer 94338 58941 17020 0 3 0x4000082 wait syz-fuzzer 17020 398151 78452 0 3 0x10008a sigsusp ksh 78452 517663 44429 0 3 0x9a kqread sshd 44429 511577 1 0 3 0x88 kqread sshd 42133 130976 44792 74 3 0x1100092 bpf pflogd 44792 51682 1 0 3 0x80 netio pflogd 17076 405840 19114 73 3 0x1100090 kqread syslogd 19114 229999 1 0 3 0x100082 netio syslogd 8680 468988 1 0 3 0x100080 kqread resolvd 63158 331661 78759 77 3 0x100092 kqread dhcpleased 25672 80012 78759 77 3 0x100092 kqread dhcpleased 78759 367686 1 0 3 0x80 kqread dhcpleased 55300 387116 0 0 2 0x14200 smr 70318 72613 0 0 2 0x14200 zerothread 59300 290250 0 0 3 0x14200 aiodoned aiodoned 71448 141165 0 0 3 0x14200 syncer update 48372 223737 0 0 3 0x14200 cleaner cleaner 46675 292505 0 0 3 0x14200 reaper reaper 95294 399143 0 0 3 0x14200 pgdaemon pagedaemon 10647 169556 0 0 3 0x14200 bored viomb 5172 132107 0 0 3 0x40014200 acpi0 acpi0 49759 327106 0 0 3 0x40014200 idle1 92428 253283 0 0 3 0x14200 bored softnet 91182 275011 0 0 3 0x14200 bored softnet 81890 218146 0 0 3 0x14200 bored softnet 51586 376816 0 0 3 0x14200 bored softnet 26805 501271 0 0 3 0x14200 bored systqmp 55125 245441 0 0 3 0x14200 bored systq *21834 507869 0 0 7 0x40014200 softclock 42110 80310 0 0 3 0x40014200 idle0 1 483266 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 55882 (syz-executor.1) thread 0xffff800021339ce0 (35187) exclusive rrwlock inode r = 0 (0xfffffd8066e1fd60) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #10 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069601920) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 Process 19275 (syz-executor.0) thread 0xffff800021318a80 (133929) shared rwlock vmmaplk r = 0 (0xfffffd8069e48678) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5332 #3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293 #4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:834 #5 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #5 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #6 Xsyscall+0x128 Process 93327 (syz-executor.6) thread 0xffff80002131aa80 (90892) exclusive rrwlock inode r = 0 (0xfffffd8069ec81a8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560 #11 namei+0x36a sys/kern/vfs_lookup.c:244 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8067ed43d8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 Process 21834 (softclock) thread 0xffff8000211e87e0 (507869) exclusive rwlock netlock r = 0 (0xffffffff8295d1b0) #0 witness_lock+0x44d #1 arptimer+0x22 sys/netinet/if_ether.c:132 #2 timeout_run+0xcc sys/kern/kern_timeout.c:641 #3 softclock_thread+0x134 sys/kern/kern_timeout.c:765 #4 proc_trampoline+0x1c shared rwlock timeout r = 0 (0xffffffff8291e078) #0 witness_lock+0x44d #1 timeout_run+0xb7 sys/kern/kern_timeout.c:637 #2 softclock_thread+0x134 sys/kern/kern_timeout.c:765 #3 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82aaf200) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 softclock_thread+0xd9 sys/kern/kern_timeout.c:760 #5 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10236 6497K 8068K 78643K 33096 0 pcb 13 18K 22K 78643K 2266 0 rtable 195 15K 16K 78643K 1712 0 ifaddr 81 18K 20K 78643K 493 0 sysctl 2 0K 2K 78643K 9 0 counters 58 35K 36K 78643K 266 0 ioctlops 0 0K 4K 78643K 2153 0 iov 0 0K 32K 78643K 5415 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1768 111K 111K 78643K 9051 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 59 0 VM map 2 1K 1K 78643K 2 0 sem 19 10K 20K 78643K 745 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 85K 78643K 7626 0 sigio 0 0K 0K 78643K 271 0 proc 71 91K 128K 78643K 1543 0 subproc 104 6K 7K 78643K 384 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 635 0 in_multi 80 5K 6K 78643K 626 0 ether_multi 1 0K 0K 78643K 80 0 mrt 1 0K 0K 78643K 26 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 1K 78643K 1654 0 pfkey data 0 0K 0K 78643K 17 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 373 93K 110K 78643K 56910 0 UVM aobj 131 4K 4K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 215 0 NDP 14 0K 1K 78643K 167 0 temp 138 4694K 5718K 78643K 75125 0 kqueue 12 18K 26K 78643K 854 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 536 0 533 7 6 1 3 0 8 0 rtentry 112 558 0 477 4 1 3 4 0 8 0 unpcb 144 10884 0 10865 79 73 6 8 0 8 5 syncache 296 32 0 32 10 10 0 1 0 8 0 tcpqe 32 405 7266 405 5 5 0 1 0 8 0 tcpcb 776 2542 0 2536 91 87 4 14 0 8 2 arp 120 69 0 54 1 0 1 1 0 8 0 inpcb 368 9496 0 9487 158 150 8 16 0 8 6 nd6 48 101 0 82 1 0 1 1 0 8 0 pkpcb 40 62 0 62 5 5 0 1 0 8 0 kcovpl 48 29 0 21 1 0 1 1 0 8 0 ppxss 1256 46 0 46 10 10 0 1 0 8 0 pppxif 1448 20 0 20 6 6 0 1 0 8 0 pfstscr 40 9 0 9 2 2 0 1 0 8 0 pffrag 232 112 0 112 4 4 0 1 0 482 0 pffrnode 88 112 0 112 4 4 0 1 0 8 0 pffrent 40 245 0 245 5 5 0 1 0 8 0 pfosfp 40 1435 0 1010 5 0 5 5 0 8 0 pfosfpen 112 1435 0 719 21 0 21 21 0 8 0 pfanchor 1280 812 0 441 48 12 36 37 0 8 0 pfstitem 24 24 0 22 1 0 1 1 0 8 0 pfstkey 128 103 0 101 1 0 1 1 0 8 0 pfstate 384 65 0 63 3 2 1 3 0 8 0 pfrule 1344 21 0 20 2 1 1 2 0 8 0 rttmr 136 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2781 0 2395 40 15 25 29 0 8 0 art_table 32 2782 0 2395 4 0 4 4 0 8 0 art_node 16 543 0 473 1 0 1 1 0 8 0 semupl 112 7 0 7 2 2 0 1 0 8 0 semapl 112 732 0 715 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12474 0 11023 92 0 92 92 0 8 0 ffsino 272 12474 0 11023 98 0 98 98 0 8 0 nchpl 144 22921 0 21293 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 86822 0 86821 6 5 1 2 0 8 0 percpumem 16 145 0 104 1 0 1 1 0 8 0 vmpool 696 41 0 41 8 8 0 1 0 8 0 kstatmem 264 192 0 164 4 1 3 3 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 74596 0 74596 41 39 2 8 0 8 2 plimitpl 152 1409 0 1393 1 0 1 1 0 8 0 sigapl 424 7935 0 7870 13 5 8 9 0 8 0 futexpl 64 73850 0 73846 5 4 1 1 0 8 0 knotepl 120 708 0 0 11 0 11 11 0 8 0 kqueuepl 216 1896 0 1887 33 32 1 5 0 8 0 pipepl 320 1821 0 1796 47 39 8 9 0 8 5 fdescpl 496 7875 0 7849 6 1 5 5 0 8 0 filepl 152 67779 0 67540 138 119 19 29 0 8 7 lockfpl 104 10675 0 10673 26 25 1 4 0 8 0 lockfspl 48 3363 0 3361 3 2 1 2 0 8 0 sessionpl 144 46 0 29 1 0 1 1 0 8 0 pgrppl 48 68 0 51 1 0 1 1 0 8 0 ucredpl 104 9614 0 9602 1 0 1 1 0 8 0 zombiepl 144 7873 0 7870 2 1 1 1 0 8 0 processpl 1072 7935 0 7870 5 0 5 5 0 8 0 procpl 672 23766 0 23677 20 11 9 10 0 8 0 srpgc 96 31 0 31 12 12 0 1 0 8 0 sosppl 168 88 0 88 17 17 0 1 0 8 0 sockpl 488 20984 0 20953 478 465 13 29 0 8 8 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 26 0 0 4 1 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 414 0 0 39 2 37 39 0 8 0 mtagpl 96 1434 0 0 33 0 33 33 0 8 0 mbufpl 256 2168 0 0 128 0 128 128 0 8 0 bufpl 288 16722 0 10396 453 0 453 453 0 8 0 anonpl 24 1697765 0 1677922 259 116 143 181 0 186 2 amapchunkpl 152 161286 0 160459 110 64 46 62 0 158 4 amappl16 200 15223 0 14590 82 40 42 43 0 8 6 amappl15 192 5 0 4 2 1 1 1 0 8 0 amappl14 184 213 0 197 2 1 1 2 0 8 0 amappl13 176 13 0 13 3 3 0 1 0 8 0 amappl12 168 676 0 674 1 0 1 1 0 8 0 amappl11 160 69 0 52 1 0 1 1 0 8 0 amappl10 152 60 0 48 1 0 1 1 0 8 0 amappl9 144 979 0 979 12 11 1 1 0 8 1 amappl8 136 393 0 302 4 0 4 4 0 8 0 amappl7 128 210 0 182 2 0 2 2 0 8 0 amappl6 120 317 0 297 2 1 1 2 0 8 0 amappl5 112 311 0 302 1 0 1 1 0 8 0 amappl4 104 829 0 797 2 1 1 2 0 8 0 amappl3 96 24025 0 23968 2 0 2 2 0 8 0 amappl2 88 8671 0 8585 7 4 3 3 0 8 0 amappl1 80 185602 0 184784 25 6 19 24 0 8 0 amappl 88 55620 0 55403 8 0 8 8 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 7916 0 7890 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7916 0 7890 1 0 1 1 0 8 0 vmmpekpl 168 68348 0 68288 4 0 4 4 0 8 0 vmmpepl 168 746133 0 743179 363 212 151 172 0 357 4 vmsppl 368 7915 0 7890 4 1 3 4 0 8 0 rwobjpl 56 204922 0 196908 122 7 115 115 0 8 0 pdppl 4096 15839 0 15780 485 414 71 79 0 8 12 pvpl 32 3360578 0 3335287 523 284 239 323 0 265 4 pmappl 248 7915 0 7890 9 7 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1533 0 600 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a8820) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82620c5c,ffffffff8261f1db,308,ffffffff825798e6) at __assert+0x25 sys/kern/subr_prf.c:157 arptfree(fffffd80682dc328) at arptfree+0x12e sys/netinet/if_ether.c:776 arptimer(ffffffff82aef8f0) at arptimer+0x88 sys/netinet/if_ether.c:135 timeout_run(ffffffff82aef8f0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_thread(ffff8000211e87e0) at softclock_thread+0x134 sys/kern/kern_timeout.c:765 end trace frame: 0x0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 copy_fault() at copy_fault syscall(ffff80002e4ba5f0) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4ba5f0) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x85a42c64a0, count: 9 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 copy_fault() at copy_fault syscall(ffff80002e4ba5f0) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4ba5f0) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x85a42c64a0, count: -6