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 *191753 79105 0 0 0x4000000 0K syz-executor.6 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff82632dac,131,ffffffff825fdeb9) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000d78800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002a20f910) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80690a2a20,80206979,ffff80002a20f910,ffff80002a1a3260) at soo_ioctl+0x26c sys_ioctl(ffff80002a1a3260,ffff80002a20fa28,ffff80002a20fa80) at sys_ioctl+0x4a2 syscall(ffff80002a20faf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a20faf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71df6650320, 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(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff82632dac,131,ffffffff825fdeb9) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000d78800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002a20f910) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80690a2a20,80206979,ffff80002a20f910,ffff80002a1a3260) at soo_ioctl+0x26c sys_ioctl(ffff80002a1a3260,ffff80002a20fa28,ffff80002a20fa80) at sys_ioctl+0x4a2 syscall(ffff80002a20faf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a20faf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71df6650320, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a20f720 rbx 0xffffffff82920bff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff80002a1a3260 r8 0 r9 0x8080808080808080 r10 0xf678861676fc9de2 r11 0x56edf71d6034b41c r12 0xffffffff82920a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8147cfe8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002a20f710 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.6) pid=191753 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002a1a27e0,0xffff80002a1a2a90 process=0xffff80002a2114f0 user=0xffff80002a20a000, vmspace=0xfffffd8059882d18 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85398 106464 84039 0 2 0 syz-executor.7 85398 182114 84039 0 3 0x4000080 fsleep syz-executor.7 79105 160952 94641 0 2 0 syz-executor.6 *79105 191753 94641 0 7 0x4000000 syz-executor.6 98244 309001 45141 0 2 0 syz-executor.1 98244 106532 45141 0 3 0x4000080 fsleep syz-executor.1 29038 261509 43881 0 2 0 syz-executor.2 29038 114996 43881 0 3 0x4000080 fsleep syz-executor.2 77194 117541 48648 0 2 0x480 syz-executor.0 77194 507349 48648 0 3 0x4000080 nanoslp syz-executor.0 77194 184340 48648 0 3 0x4000080 fsleep syz-executor.0 29690 176533 58932 0 2 0 syz-executor.5 29690 250527 58932 0 3 0x4000080 fsleep syz-executor.5 48648 212649 46485 0 2 0x482 syz-executor.0 3076 126646 46485 0 2 0x2 syz-executor.3 43881 284408 46485 0 2 0x482 syz-executor.2 84039 178329 46485 0 2 0x482 syz-executor.7 45141 260629 46485 0 2 0x482 syz-executor.1 97433 379629 0 0 3 0x14280 nfsidl nfsio 83298 359662 0 0 3 0x14280 nfsidl nfsio 63738 276942 0 0 3 0x14280 nfsidl nfsio 14976 50513 0 0 3 0x14280 nfsidl nfsio 5711 368378 0 0 3 0x14280 nfsidl nfsio 85383 457136 0 0 3 0x14280 nfsidl nfsio 87196 71261 0 0 3 0x14280 nfsidl nfsio 44395 140298 0 0 3 0x14280 nfsidl nfsio 17497 84394 0 0 3 0x14280 nfsidl nfsio 2088 66561 0 0 3 0x14280 nfsidl nfsio 82136 251877 0 0 3 0x14280 nfsidl nfsio 68721 157845 0 0 3 0x14280 nfsidl nfsio 64044 92130 0 0 3 0x14280 nfsidl nfsio 4560 185213 0 0 3 0x14280 nfsidl nfsio 17504 122537 0 0 3 0x14280 nfsidl nfsio 55217 361322 0 0 3 0x14280 nfsidl nfsio 88350 67420 0 0 3 0x14280 nfsidl nfsio 76742 108079 0 0 3 0x14280 nfsidl nfsio 94956 2723 0 0 3 0x14280 nfsidl nfsio 64798 212481 0 0 3 0x14280 nfsidl nfsio 58932 407013 46485 0 2 0x482 syz-executor.5 94641 18362 46485 0 3 0x82 nanoslp syz-executor.6 1262 521884 1 0 3 0x100083 ttyin getty 21195 222178 0 0 3 0x14200 bored sosplice 46485 95068 88456 0 2 0x482 syz-fuzzer 46485 93841 88456 0 3 0x4000082 nanoslp syz-fuzzer 46485 71158 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 224239 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 275474 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 115195 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 202071 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 209201 88456 0 3 0x4000082 thrsleep syz-fuzzer 46485 377114 88456 0 2 0x4000002 syz-fuzzer 88456 233783 57349 0 3 0x10008a sigsusp ksh 57349 212591 15615 0 3 0x9a kqread sshd 15615 468794 1 0 3 0x88 kqread sshd 95428 430834 96355 74 3 0x100092 bpf pflogd 96355 185363 1 0 3 0x80 netio pflogd 22705 261355 75958 73 3 0x100090 kqread syslogd 75958 6670 1 0 3 0x100082 netio syslogd 66915 32333 1 0 3 0x100080 kqread resolvd 30552 236928 34990 77 2 0x100092 dhcpleased 60565 223024 34990 77 3 0x100092 kqread dhcpleased 34990 358793 1 0 3 0x80 kqread dhcpleased 23202 521797 0 0 3 0x14200 bored smr 9491 209275 0 0 2 0x14200 zerothread 33711 210707 0 0 3 0x14200 aiodoned aiodoned 87209 392498 0 0 3 0x14200 syncer update 68244 98675 0 0 3 0x14200 cleaner cleaner 58474 248707 0 0 3 0x14200 reaper reaper 89295 481690 0 0 3 0x14200 pgdaemon pagedaemon 76056 476594 0 0 3 0x14200 bored viomb 65921 218406 0 0 3 0x40014200 acpi0 acpi0 18944 307158 0 0 7 0x40014200 idle1 94140 8473 0 0 3 0x14200 bored softnet 94878 424422 0 0 3 0x14200 bored systqmp 99992 443050 0 0 3 0x14200 bored systq 5904 350842 0 0 2 0x40014200 softclock 45167 226900 0 0 3 0x40014200 idle0 1 42891 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 79105 (syz-executor.6) thread 0xffff80002a1a3260 (191753) exclusive rwlock clonelk r = 0 (0xffffffff828e4a20) #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 (0xffffffff82a3d4a8) #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 3076 (syz-executor.3) thread 0xffff80002a1af260 (126646) exclusive rrwlock inode r = 0 (0xfffffd805aef64e0) #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:3100 #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 (0xfffffd806e981a38) #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:3085 #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 10226 6510K 7330K 78643K 62906 0 pcb 15 24K 28K 78643K 8247 0 rtable 272 33K 35K 78643K 9263 0 ifaddr 106 30K 35K 78643K 5404 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 716 0 ioctlops 0 0K 8K 78643K 8073 0 iov 0 0K 28K 78643K 3792 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1499 94K 94K 78643K 19904 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 312 0 VM map 2 1K 1K 78643K 2 0 sem 11 16K 32K 78643K 20 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 81K 78643K 35589 0 sigio 1 0K 0K 78643K 4715 0 proc 73 87K 136K 78643K 5020 0 subproc 91 5K 7K 78643K 1537 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2456 0 in_multi 75 5K 7K 78643K 3567 0 ether_multi 1 0K 0K 78643K 726 0 mrt 2 0K 0K 78643K 219 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 271 1208K 1208K 78643K 271 0 exec 0 0K 2K 78643K 8450 0 pfkey data 0 0K 1K 78643K 7 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 744 1575K 1602K 78643K 435264 0 UVM aobj 131 4K 4K 78643K 153 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 2741 0 NDP 12 0K 2K 78643K 717 0 temp 161 4767K 8857K 78643K 382128 0 kqueue 12 18K 28K 78643K 1823 0 SYN cache 2 8K 16K 78643K 3 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 2453 0 2450 28 27 1 3 0 8 0 rtentry 112 2126 0 2043 4 0 4 4 0 8 0 unpcb 136 38735 0 38717 241 235 6 8 0 8 5 syncache 296 79 0 79 27 27 0 1 0 8 0 tcpqe 32 26 0 26 12 12 0 1 0 8 0 tcpcb 736 16502 0 16495 431 429 2 25 0 8 1 arp 120 276 0 259 1 0 1 1 0 8 0 inpcb 304 46365 0 46354 495 486 9 20 0 8 8 rttmr 72 68 0 68 19 19 0 1 0 8 0 nd6 48 531 0 509 1 0 1 1 0 8 0 pkpcb 40 296 0 296 17 16 1 1 0 8 1 kcovpl 48 116 0 109 1 0 1 1 0 8 0 ppxss 1248 104 0 104 27 27 0 1 0 8 0 pfstscr 40 122 0 122 11 11 0 1 0 8 0 pffrag 232 180 0 177 17 16 1 1 0 482 0 pffrnode 88 180 0 177 17 16 1 1 0 8 0 pffrent 40 1224 0 1221 19 18 1 1 0 8 0 pfosfp 40 1445 0 1019 5 0 5 5 0 8 0 pfosfpen 112 1445 0 716 21 0 21 21 0 8 0 pfrke_plain 168 26 0 26 1 1 0 1 0 8 0 pfrktable 1344 1383 0 1348 28 25 3 4 0 8 0 pftag 88 124 0 106 3 2 1 1 0 8 0 pfqueue 264 4 0 0 1 0 1 1 0 8 0 pfstitem 24 201 0 199 1 0 1 1 0 8 0 pfstkey 112 279 0 277 1 0 1 1 0 8 0 pfstate 320 160 0 158 3 2 1 3 0 8 0 pfrule 1360 1840 0 1615 24 5 19 19 0 8 0 art_heap8 4096 4 0 3 4 3 1 2 0 8 0 art_heap4 256 10068 0 9691 53 26 27 32 0 8 0 art_table 32 10072 0 9694 5 1 4 5 0 8 0 art_node 16 2107 0 2032 1 0 1 1 0 8 0 sysvmsgpl 40 40 0 0 1 0 1 1 0 8 0 semapl 112 11 0 2 1 0 1 1 0 8 0 shmpl 112 150 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 48184 0 46655 97 0 97 97 0 8 0 ffsino 272 48184 0 46655 103 0 103 103 0 8 0 nchpl 144 105614 0 103996 63 0 63 63 0 8 0 rtmask 32 8 0 8 1 1 0 1 0 8 0 uvmvnodes 80 6520 0 0 134 0 134 134 0 8 0 vnodes 224 6520 0 0 384 0 384 384 0 8 0 namei 1024 358353 0 358352 18 16 2 2 0 8 1 percpumem 16 370 0 330 1 0 1 1 0 8 0 vcpupl 2048 467 0 1 59 0 59 59 0 8 0 vmpool 560 513 0 47 35 1 34 34 0 8 0 pfiaddrpl 120 848 0 757 5 2 3 3 0 8 0 scsiplug 72 12 0 12 4 4 0 1 0 8 0 scxspl 216 295278 0 295278 50 49 1 8 0 8 1 plimitpl 152 4505 0 4491 1 0 1 1 0 8 0 sigapl 424 35748 0 35685 11 3 8 8 0 8 0 futexpl 64 372247 0 372242 13 12 1 1 0 8 0 knotepl 120 900 0 0 11 3 8 10 0 8 0 kqueuepl 216 7707 0 7699 165 164 1 8 0 8 0 pipepl 336 8134 0 8109 213 207 6 14 0 8 3 fdescpl 496 35662 0 35634 9 5 4 5 0 8 0 filepl 152 288925 0 288697 389 374 15 25 0 8 5 lockfpl 104 9786 0 9655 47 43 4 6 0 8 0 lockfspl 48 2400 0 2372 4 3 1 2 0 8 0 sessionpl 144 133 0 117 1 0 1 1 0 8 0 pgrppl 48 350 0 334 1 0 1 1 0 8 0 ucredpl 96 34950 0 34931 1 0 1 1 0 8 0 zombiepl 144 35685 0 35685 9 8 1 1 0 8 1 processpl 1064 35748 0 35685 6 1 5 5 0 8 0 procpl 672 90538 0 90460 25 17 8 9 0 8 0 srpgc 96 101 0 101 21 20 1 1 0 8 1 sosppl 168 339 0 339 62 61 1 1 0 8 1 sockpl 480 87984 0 87952 1484 1472 12 35 0 8 7 mcl64k 65536 18 0 0 3 1 2 3 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 12 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 17 0 0 3 1 2 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 805 0 0 36 11 25 35 0 8 0 mtagpl 96 1837 0 0 24 4 20 24 0 8 0 mbufpl 256 10778 0 0 569 1 568 568 0 8 0 bufpl 288 74764 0 68570 466 1 465 466 0 8 0 anonpl 24 10113426 0 10091988 613 447 166 181 0 186 0 amapchunkpl 152 1075087 0 1074220 236 198 38 51 0 158 1 amappl16 200 107006 0 106049 339 286 53 64 0 8 0 amappl15 192 6778 0 6772 1 0 1 1 0 8 0 amappl14 184 7644 0 7640 1 0 1 1 0 8 0 amappl13 176 7608 0 7607 1 0 1 1 0 8 0 amappl12 168 4097 0 4088 1 0 1 1 0 8 0 amappl11 160 2664 0 2647 1 0 1 1 0 8 0 amappl10 152 3635 0 3623 1 0 1 1 0 8 0 amappl9 144 3589 0 3580 1 0 1 1 0 8 0 amappl8 136 6784 0 6577 8 0 8 8 0 8 0 amappl7 128 3995 0 3982 1 0 1 1 0 8 0 amappl6 120 3694 0 3663 4 2 2 2 0 8 1 amappl5 112 29384 0 29361 1 0 1 1 0 8 0 amappl4 104 10729 0 10687 2 0 2 2 0 8 0 amappl3 96 10507 0 10487 1 0 1 1 0 8 0 amappl2 88 13724 0 13661 3 1 2 3 0 8 0 amappl1 80 631299 0 630715 21 7 14 19 0 8 0 amappl 88 432074 0 431694 11 1 10 10 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 72 152 0 22 3 0 3 3 0 8 0 uaddrrnd 24 36175 0 35681 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 36175 0 35681 3 0 3 3 0 8 0 vmmpekpl 168 232067 0 231963 8 2 6 6 0 8 0 vmmpepl 168 3240391 0 3236430 703 505 198 220 0 357 7 vmsppl 368 36174 0 35681 49 3 46 46 0 8 0 rwobjpl 56 766985 0 758101 172 43 129 130 0 8 0 pdppl 4096 72357 0 71828 1838 1303 535 535 0 8 6 pvpl 32 17222281 0 17200117 1055 835 220 283 0 265 0 pmappl 248 36174 0 35681 35 3 32 32 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 3978 0 2010 57 0 57 57 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(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff82632dac,131,ffffffff825fdeb9) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000d78800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305 if_clone_destroy(ffff80002a20f910) at if_clone_destroy+0x132 sys/net/if.c:1218 soo_ioctl(fffffd80690a2a20,80206979,ffff80002a20f910,ffff80002a1a3260) at soo_ioctl+0x26c sys_ioctl(ffff80002a1a3260,ffff80002a20fa28,ffff80002a20fa80) at sys_ioctl+0x4a2 syscall(ffff80002a20faf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002a20faf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71df6650320, 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