panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 305 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *333339 60103 0 0 0x4000000 0K syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579d6f) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebeb2,ffffffff82631f2a,131,ffffffff825fcbe7) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000db5800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002e369240) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80670cad30,80206979,ffff80002e369240,ffff8000ffff4540) at soo_ioctl+0x26c sys_ioctl(ffff8000ffff4540,ffff80002e369358,ffff80002e3693b0) at sys_ioctl+0x4a2 syscall(ffff80002e369420) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e369420) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc73adacfd80, count: 6 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 "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 305 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579d6f) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebeb2,ffffffff82631f2a,131,ffffffff825fcbe7) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000db5800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002e369240) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80670cad30,80206979,ffff80002e369240,ffff8000ffff4540) at soo_ioctl+0x26c sys_ioctl(ffff8000ffff4540,ffff80002e369358,ffff80002e3693b0) at sys_ioctl+0x4a2 syscall(ffff80002e369420) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e369420) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc73adacfd80, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e369050 rbx 0xffffffff82936bff cpu_info_full_primary+0x2bff rdx 0xffff800000db6580 rcx 0 rax 0xffff8000ffff4540 r8 0 r9 0x8080808080808080 r10 0xa502e81758617fb0 r11 0x493d14a9735895d8 r12 0xffffffff82936a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81a3d338 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e369040 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) pid=333339 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4fc0,0xffff8000ffff42b0 process=0xffff8000211a1d28 user=0xffff80002e364000, vmspace=0xfffffd80747ce738 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1365 29726 13164 0 2 0 syz-executor.3 98509 392601 46362 0 2 0 syz-executor.0 98509 515601 46362 0 3 0x4000080 fsleep syz-executor.0 77546 367957 49121 0 2 0 syz-executor.5 60103 136323 80401 0 2 0 syz-executor.7 *60103 333339 80401 0 7 0x4000000 syz-executor.7 41306 265282 29698 0 2 0 syz-executor.1 41306 454059 29698 0 3 0x4000080 fsleep syz-executor.1 80401 324490 98545 0 2 0x482 syz-executor.7 29698 122055 98545 0 3 0x82 nanoslp syz-executor.1 46362 201777 98545 0 2 0x482 syz-executor.0 4094 193046 98545 0 2 0x2 syz-executor.6 37429 82535 98545 0 3 0x82 piperd syz-executor.2 3024 521188 0 0 3 0x14280 nfsidl nfsio 35774 181587 0 0 3 0x14280 nfsidl nfsio 27817 147796 0 0 3 0x14280 nfsidl nfsio 25639 68595 0 0 3 0x14280 nfsidl nfsio 65538 224952 0 0 3 0x14280 nfsidl nfsio 50789 500222 0 0 3 0x14280 nfsidl nfsio 12853 81507 0 0 3 0x14280 nfsidl nfsio 86972 305443 0 0 3 0x14280 nfsidl nfsio 72480 110078 0 0 3 0x14280 nfsidl nfsio 13627 511345 0 0 3 0x14280 nfsidl nfsio 56428 496541 0 0 3 0x14280 nfsidl nfsio 73408 332180 0 0 3 0x14280 nfsidl nfsio 62779 274354 0 0 3 0x14280 nfsidl nfsio 94956 52069 0 0 3 0x14280 nfsidl nfsio 22651 334323 0 0 3 0x14280 nfsidl nfsio 34961 96640 0 0 3 0x14280 nfsidl nfsio 77789 167023 0 0 3 0x14280 nfsidl nfsio 16032 369798 0 0 3 0x14280 nfsidl nfsio 62452 143363 0 0 3 0x14280 nfsidl nfsio 88170 199372 0 0 3 0x14280 nfsidl nfsio 13164 1462 98545 0 3 0x82 nanoslp syz-executor.3 49121 160071 98545 0 2 0x482 syz-executor.5 93114 497477 0 0 3 0x14200 bored sosplice 98545 311502 14092 0 2 0x2 syz-fuzzer 98545 81566 14092 0 3 0x4000082 nanoslp syz-fuzzer 98545 68713 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 158190 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 17918 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 32730 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 425289 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 275868 14092 0 3 0x4000082 thrsleep syz-fuzzer 98545 367848 14092 0 3 0x4000082 kqread syz-fuzzer 14092 147512 70026 0 3 0x10008a sigsusp ksh 70026 480976 59996 0 3 0x9a kqread sshd 93765 481519 1 0 3 0x100083 ttyopn getty 59996 118621 1 0 3 0x88 kqread sshd 13109 206185 16932 74 3 0x1100092 bpf pflogd 16932 28188 1 0 3 0x80 netio pflogd 30276 489653 16017 73 3 0x1100090 kqread syslogd 16017 347407 1 0 3 0x100082 netio syslogd 80 395109 1 0 3 0x100080 kqread resolvd 95730 23110 54543 77 3 0x100092 kqread dhcpleased 23589 215996 54543 77 3 0x100092 kqread dhcpleased 54543 427182 1 0 3 0x80 kqread dhcpleased 78874 177492 0 0 3 0x14200 bored smr 23586 232624 0 0 2 0x14200 zerothread 22053 204846 0 0 3 0x14200 aiodoned aiodoned 1564 382420 0 0 3 0x14200 syncer update 17450 206588 0 0 3 0x14200 cleaner cleaner 84942 336933 0 0 3 0x14200 reaper reaper 7732 27908 0 0 3 0x14200 pgdaemon pagedaemon 61559 127449 0 0 3 0x14200 bored viomb 8808 461760 0 0 3 0x40014200 acpi0 acpi0 67245 302827 0 0 7 0x40014200 idle1 53708 501462 0 0 3 0x14200 bored softnet 98268 272497 0 0 3 0x14200 bored systqmp 26725 313009 0 0 3 0x14200 bored systq 8659 157531 0 0 2 0x40014200 softclock 93669 89642 0 0 3 0x40014200 idle0 1 41505 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 60103 (syz-executor.7) thread 0xffff8000ffff4540 (333339) exclusive rwlock clonelk r = 0 (0xffffffff8293a3b0) #0 witness_lock+0x44d #1 if_clone_destroy+0x49 #2 soo_ioctl+0x26c #3 sys_ioctl+0x4a2 #4 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82aa6470) #0 witness_lock+0x44d #1 soo_ioctl+0x25a sys/kern/sys_socket.c:136 #2 sys_ioctl+0x4a2 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 Process 4094 (syz-executor.6) thread 0xffff80002ad08a80 (193046) exclusive rrwlock inode r = 0 (0xfffffd80677640a0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8067764920) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 6710K 7551K 78643K 72643 0 pcb 13 18K 22K 78643K 6451 0 rtable 193 10K 14K 78643K 3812 0 ifaddr 95 21K 23K 78643K 1603 0 sysctl 3 1K 3K 78643K 10 0 counters 58 35K 36K 78643K 350 0 ioctlops 0 0K 8K 78643K 5616 0 iov 0 0K 24K 78643K 1257 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1529 96K 96K 78643K 17648 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 115 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1254 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 89K 78643K 19449 0 sigio 0 0K 0K 78643K 128 0 proc 70 87K 124K 78643K 2123 0 subproc 91 5K 6K 78643K 640 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 735 0 in_multi 69 4K 6K 78643K 1298 0 ether_multi 1 0K 0K 78643K 72 0 mrt 1 0K 0K 78643K 102 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 2K 78643K 2927 0 pfkey data 0 0K 0K 78643K 70 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 7 26K 26K 78643K 7 0 UVM amap 601 1312K 1321K 78643K 241936 0 UVM aobj 97 8K 8K 78643K 116 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 7661 0 NDP 15 0K 1K 78643K 354 0 temp 147 4721K 4791K 78643K 164944 0 kqueue 12 18K 28K 78643K 774 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 120 938 0 935 16 15 1 5 0 8 0 rtentry 112 1105 0 1031 3 0 3 3 0 8 0 unpcb 136 12236 0 12221 116 113 3 8 0 8 2 syncache 296 20 0 20 5 5 0 1 0 8 0 tcpqe 32 37 0 37 2 2 0 1 0 8 0 tcpcb 736 14833 0 14825 208 199 9 23 0 8 8 arp 120 109 0 95 1 0 1 1 0 8 0 inpcb 304 37542 0 37533 202 193 9 19 0 8 8 rttmr 72 38 0 38 7 6 1 1 0 8 1 nd6 48 248 0 232 1 0 1 1 0 8 0 pkpcb 40 19 0 19 5 5 0 1 0 8 0 kcovpl 48 49 0 42 1 0 1 1 0 8 0 ppxss 1248 31 0 30 3 2 1 1 0 8 0 pfstscr 40 215 0 215 5 5 0 1 0 8 0 pffrag 232 45 0 45 5 5 0 1 0 482 0 pffrnode 88 45 0 45 5 5 0 1 0 8 0 pffrent 40 153 0 153 5 5 0 1 0 8 0 pfosfp 40 1435 0 1011 5 0 5 5 0 8 0 pfosfpen 112 1435 0 720 21 0 21 21 0 8 0 pfrktable 1344 401 0 393 5 4 1 2 0 8 0 pftag 88 22 0 14 3 2 1 1 0 8 0 pfqueue 264 37 0 37 2 2 0 1 0 8 0 pfstitem 24 45 0 43 1 0 1 1 0 8 0 pfstkey 112 479 0 477 1 0 1 1 0 8 0 pfstate 320 252 0 250 3 2 1 2 0 8 0 pfsrctr 152 25 0 25 1 1 0 1 0 8 0 pfrule 1360 520 0 457 13 7 6 6 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 5583 0 5258 54 28 26 40 0 8 0 art_table 32 5585 0 5259 7 3 4 6 0 8 0 art_node 16 1096 0 1029 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 1 0 1 0 8 0 semapl 112 1252 0 1242 1 0 1 1 0 8 0 shmpl 112 113 0 19 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 24673 0 23212 92 0 92 92 0 8 0 ffsino 272 24673 0 23212 98 0 98 98 0 8 0 nchpl 144 50363 0 48750 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 174599 0 174598 5 4 1 2 0 8 0 percpumem 16 187 0 146 1 0 1 1 0 8 0 vcpupl 2048 206 0 0 26 0 26 26 0 8 0 vmpool 560 214 0 8 16 1 15 15 0 8 0 pfiaddrpl 120 129 0 120 5 4 1 1 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 139013 0 139013 21 20 1 7 0 8 1 plimitpl 152 1045 0 1031 1 0 1 1 0 8 0 sigapl 424 19711 0 19649 9 1 8 8 0 8 0 futexpl 64 217799 0 217797 1 0 1 1 0 8 0 knotepl 120 244 0 0 6 1 5 6 0 8 0 kqueuepl 216 4083 0 4075 80 79 1 12 0 8 0 pipepl 336 2716 0 2691 75 72 3 13 0 8 0 fdescpl 496 19655 0 19628 7 3 4 5 0 8 0 filepl 152 143776 0 143555 189 175 14 26 0 8 4 lockfpl 104 3167 0 3165 11 10 1 4 0 8 0 lockfspl 48 1005 0 1003 1 0 1 1 0 8 0 sessionpl 144 65 0 49 1 0 1 1 0 8 0 pgrppl 48 88 0 72 1 0 1 1 0 8 0 ucredpl 96 10658 0 10644 1 0 1 1 0 8 0 zombiepl 144 19649 0 19649 1 0 1 1 0 8 1 processpl 1064 19711 0 19649 5 0 5 5 0 8 0 procpl 672 51520 0 51447 25 17 8 9 0 8 1 srpgc 96 68 0 68 12 12 0 1 0 8 0 sosppl 168 222 0 222 13 13 0 1 0 8 0 sockpl 480 50847 0 50820 717 701 16 40 0 8 12 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 418 0 0 32 1 31 32 0 8 0 mtagpl 96 2301 0 0 45 0 45 45 0 8 0 mbufpl 256 14839 0 0 893 0 893 893 0 8 0 bufpl 288 28380 0 22044 453 0 453 453 0 8 0 anonpl 24 5244806 0 5229112 220 91 129 146 0 186 0 amapchunkpl 152 578376 0 577589 82 44 38 45 0 158 0 amappl16 200 43459 0 42791 113 76 37 50 0 8 0 amappl15 192 4645 0 4638 1 0 1 1 0 8 0 amappl14 184 171 0 168 1 0 1 1 0 8 0 amappl13 176 333 0 331 1 0 1 1 0 8 0 amappl12 168 4691 0 4686 1 0 1 1 0 8 0 amappl11 160 1958 0 1942 1 0 1 1 0 8 0 amappl10 152 4273 0 4265 1 0 1 1 0 8 0 amappl9 144 1794 0 1789 1 0 1 1 0 8 0 amappl8 136 4444 0 4280 6 0 6 6 0 8 0 amappl7 128 2640 0 2627 1 0 1 1 0 8 0 amappl6 120 1665 0 1633 5 3 2 2 0 8 1 amappl5 112 21041 0 21021 1 0 1 1 0 8 0 amappl4 104 4579 0 4546 2 0 2 2 0 8 0 amappl3 96 5672 0 5658 1 0 1 1 0 8 0 amappl2 88 3537 0 3468 4 2 2 3 0 8 0 amappl1 80 343606 0 343072 18 4 14 18 0 8 0 amappl 88 240453 0 240136 9 0 9 9 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 72 115 0 19 2 0 2 2 0 8 0 uaddrrnd 24 19869 0 19636 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 19869 0 19636 2 0 2 2 0 8 0 vmmpekpl 168 120354 0 120267 5 0 5 5 0 8 0 vmmpepl 168 1748555 0 1745670 337 191 146 157 0 357 1 vmsppl 368 19868 0 19636 26 4 22 22 0 8 0 rwobjpl 56 406168 0 398355 132 20 112 116 0 8 0 pdppl 4096 39745 0 39478 771 496 275 276 0 8 8 pvpl 32 8843600 0 8823532 515 310 205 255 0 265 2 pmappl 248 19868 0 19636 18 3 15 15 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2766 0 814 56 0 56 56 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:440 panic(ffffffff82579d6f) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebeb2,ffffffff82631f2a,131,ffffffff825fcbe7) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000db5800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002e369240) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80670cad30,80206979,ffff80002e369240,ffff8000ffff4540) at soo_ioctl+0x26c sys_ioctl(ffff8000ffff4540,ffff80002e369358,ffff80002e3693b0) at sys_ioctl+0x4a2 syscall(ffff80002e369420) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e369420) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc73adacfd80, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) 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 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) 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 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5