panic: malloc: allocation too large, type = 2, size = 1768304430 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 54121 85087 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830a5007) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff80000140d200) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff80000140d200,ffff80002f162600) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(71700,8020426c,ffff80002f162600,1,ffff8000ffff67c0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd8065c9bcb8,8020426c,ffff80002f162600,1,fffffd807f7d3138,ffff8000ffff67c0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8069941608,8020426c,ffff80002f162600,ffff8000ffff67c0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff67c0,ffff80002f1627e0,ffff80002f162730) at sys_ioctl+0x5c3 syscall(ffff80002f1627e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f1627e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf6cea3320, count: 4 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: malloc: allocation too large, type = 2, size = 1768304430 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830a5007) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff80000140d200) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff80000140d200,ffff80002f162600) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(71700,8020426c,ffff80002f162600,1,ffff8000ffff67c0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd8065c9bcb8,8020426c,ffff80002f162600,1,fffffd807f7d3138,ffff8000ffff67c0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8069941608,8020426c,ffff80002f162600,ffff8000ffff67c0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff67c0,ffff80002f1627e0,ffff80002f162730) at sys_ioctl+0x5c3 syscall(ffff80002f1627e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f1627e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf6cea3320, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002f162180 rbx 0xffffffff834e4dc7 cpu_info_full_primary+0x2dc7 rdx 0xffff8000012992c0 rcx 0xffff8000ffff67c0 rax 0xffffffff834e3ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9f3dd823399547c6 r11 0x8d142de0db32fa33 r12 0xffffffff834e4bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f162170 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=54121 pid=85087 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff6a48,0xffff8000ffffa020 process=0xffff80003c63a240 user=0xffff80002f15d000, vmspace=0xfffffd805d9bb918 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44299 436752 37525 0 2 0 syz-executor 44299 339962 37525 0 3 0x4000080 fsleep syz-executor 85087 225121 92606 0 2 0 syz-executor *85087 54121 92606 0 7 0x4000000 syz-executor 95781 473022 25505 0 2 0 syz-executor 7671 69622 60581 0 2 0 syz-executor 7671 6353 60581 0 3 0x4000080 fsleep syz-executor 85489 218569 92318 0 2 0 syz-executor 85489 227306 92318 0 3 0x4000080 fsleep syz-executor 35936 64933 64740 0 2 0 syz-executor 35936 374034 64740 0 2 0x4000000 syz-executor 94187 16734 82604 0 2 0 syz-executor 94187 70237 82604 0 2 0x4000000 syz-executor 14242 192648 48226 0 2 0 syz-executor 14242 243390 48226 0 3 0x4000080 kqsel syz-executor 14242 329784 48226 0 3 0x4000080 fsleep syz-executor 7393 427305 1 0 3 0x80 nanoslp init 92318 73543 93105 0 2 0x482 syz-executor 58529 301853 0 0 3 0x14280 nfsidl nfsio 90892 424748 0 0 3 0x14280 nfsidl nfsio 55417 484491 0 0 3 0x14280 nfsidl nfsio 13224 111557 0 0 3 0x14280 nfsidl nfsio 40986 491093 0 0 3 0x14280 nfsidl nfsio 72885 300378 0 0 3 0x14280 nfsidl nfsio 41393 50244 0 0 3 0x14280 nfsidl nfsio 80836 172785 0 0 3 0x14280 nfsidl nfsio 42981 11038 0 0 3 0x14280 nfsidl nfsio 7238 123247 0 0 3 0x14280 nfsidl nfsio 26447 398788 0 0 3 0x14280 nfsidl nfsio 35580 315927 0 0 3 0x14280 nfsidl nfsio 33045 270126 0 0 3 0x14280 nfsidl nfsio 64835 7918 0 0 3 0x14280 nfsidl nfsio 97263 45616 0 0 3 0x14280 nfsidl nfsio 24514 49236 0 0 3 0x14280 nfsidl nfsio 47854 283798 0 0 3 0x14280 nfsidl nfsio 85952 248143 0 0 3 0x14280 nfsidl nfsio 87259 351736 0 0 3 0x14280 nfsidl nfsio 28246 339363 0 0 3 0x14280 nfsidl nfsio 18695 483475 0 0 3 0x14200 bored sosplice 48226 400388 93105 0 3 0x82 nanoslp syz-executor 82604 31482 93105 0 3 0x82 nanoslp syz-executor 60581 346792 93105 0 2 0x482 syz-executor 37525 393146 93105 0 3 0x82 nanoslp syz-executor 92606 438318 93105 0 3 0x82 nanoslp syz-executor 64740 305308 93105 0 2 0x482 syz-executor 25505 170102 93105 0 3 0x82 nanoslp syz-executor 93105 10355 81975 0 3 0x82 kqread syz-executor 81975 345223 80839 0 3 0x10008a sigsusp ksh 80839 218184 85334 0 3 0x98 kqread sshd-session 85334 131042 17699 0 3 0x92 kqread sshd-session 17699 115839 1 0 3 0x88 kqread sshd 9525 6372 42418 74 3 0x1100092 bpf pflogd 42418 266036 1 0 3 0x80 sbwait pflogd 46628 257730 62443 73 3 0x1100090 kqread syslogd 62443 396811 1 0 3 0x100082 sbwait syslogd 54830 345092 1 0 3 0x100080 kqread resolvd 54469 254046 95773 77 3 0x100092 kqread dhcpleased 13868 177552 95773 77 3 0x100092 kqread dhcpleased 95773 408574 1 0 3 0x80 kqread dhcpleased 26587 91581 0 0 3 0x14200 bored smr 26938 53240 0 0 2 0x14200 zerothread 83383 26240 0 0 3 0x14200 aiodoned aiodoned 87197 475747 0 0 3 0x14200 syncer update 32462 307914 0 0 3 0x14200 cleaner cleaner 54697 351217 0 0 3 0x14200 reaper reaper 97456 348327 0 0 3 0x14200 pgdaemon pagedaemon 57770 102077 0 0 3 0x14200 bored viomb 49363 345702 0 0 3 0x40014200 acpi0 acpi0 87397 176016 0 0 7 0x40014200 idle1 97048 346689 0 0 3 0x14200 bored softnet3 41413 416819 0 0 3 0x14200 bored softnet2 81342 410194 0 0 3 0x14200 bored softnet1 75936 439203 0 0 3 0x14200 bored softnet0 79266 267293 0 0 3 0x14200 bored systqmp 79257 137206 0 0 3 0x14200 bored systq 97058 212864 0 0 3 0x14200 tmoslp softclockmp 57176 171320 0 0 3 0x40014200 tmoslp softclock 6077 200337 0 0 3 0x40014200 idle0 1 56954 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &bd->bd_mtx r = 0 (0xffff80000140d218) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 bpf_setif+0x97 sys/net/bpf.c:1200 #4 bpfioctl+0xd2a sys/net/bpf.c:955 #5 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #6 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #7 sys_ioctl+0x5c3 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 85087 (syz-executor) thread 0xffff8000ffff67c0 (54121) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836710f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vn_ioctl+0x4d sys/kern/vfs_vnops.c:514 #2 sys_ioctl+0x5c3 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 exclusive mutex &bd->bd_mtx r = 0 (0xffff80000140d218) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 bpf_setif+0x97 sys/net/bpf.c:1200 #4 bpfioctl+0xd2a sys/net/bpf.c:955 #5 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #6 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #7 sys_ioctl+0x5c3 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10246 11243K 11447K 166960K 14388 0 pcb 18 16K 17K 166960K 355 0 rtable 166 7K 8K 166960K 589 0 pf 37 18K 21K 166960K 125 0 ifaddr 35 5K 7K 166960K 99 0 ifgroup 55 2K 2K 166960K 147 0 sysctl 4 1K 1K 166960K 4 0 counters 64 36K 37K 166960K 124 0 ioctlops 0 0K 4K 166960K 1707 0 iov 0 0K 20K 166960K 141 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1511 95K 96K 166960K 3200 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 33 0 VM map 2 1K 1K 166960K 2 0 sem 25 16K 16K 166960K 87 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 81K 166960K 2089 0 sigio 0 0K 0K 166960K 160 0 proc 64 79K 128K 166960K 810 0 subproc 72 4K 4K 166960K 83 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 338 0 in_multi 62 4K 7K 166960K 237 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 881 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 232 73K 89K 166960K 21111 0 UVM aobj 56 6K 6K 166960K 63 0 pinsyscall 42 84K 98K 166960K 3306 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 122 0 NDP 12 0K 2K 166960K 69 0 temp 76 6900K 7028K 166960K 95566 0 kqueue 14 22K 29K 166960K 334 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 163 0 160 1 0 1 1 0 8 0 rtentry 112 177 0 109 4 0 4 4 0 8 0 unpcb 144 1724 0 1706 15 14 1 6 0 8 0 syncache 336 20 0 20 5 4 1 1 0 8 1 tcpqe 32 7 0 7 3 3 0 1 0 8 0 tcpcb 808 927 0 911 24 19 5 10 0 8 3 arp 120 28 0 12 1 0 1 1 0 8 0 inpcb 376 2826 0 2806 44 35 9 15 0 8 6 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 33 0 20 1 0 1 1 0 8 0 pkpcb 40 13 0 13 7 6 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 19 0 19 3 2 1 1 0 8 1 pffrag 232 24 0 19 1 0 1 1 0 482 0 pffrnode 88 24 0 19 1 0 1 1 0 8 0 pffrent 40 46 0 41 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 261 0 144 1 0 1 1 0 8 0 pfstkey 128 276 0 92 7 0 7 7 0 8 0 pfstate 376 234 0 118 13 0 13 13 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 759 0 451 31 6 25 29 0 8 0 art_table 32 764 0 451 4 0 4 4 0 8 0 art_node 16 168 0 108 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 13 1 0 1 1 0 8 0 semupl 112 8 0 8 5 4 1 1 0 8 1 semapl 112 81 0 58 1 0 1 1 0 8 0 shmpl 112 60 0 7 2 0 2 2 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 5312 0 3813 95 0 95 95 0 8 0 ffsino 280 5312 0 3813 109 0 109 109 0 8 0 nchpl 144 8423 0 7872 64 40 24 64 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 30778 0 30778 5 4 1 2 0 8 1 percpumem 16 76 0 30 1 0 1 1 0 8 0 kstatmem 264 84 0 60 4 2 2 3 0 8 0 scsiplug 72 6 0 6 4 3 1 1 0 8 1 scxspl 216 26866 0 26866 16 15 1 8 1 8 1 plimitpl 152 639 0 622 1 0 1 1 0 8 0 sigapl 424 2435 0 2364 10 1 9 9 0 8 0 futexpl 64 30852 0 30848 1 0 1 1 0 8 0 knotepl 120 811 0 0 25 0 25 25 0 8 0 kqueuepl 216 658 0 647 9 8 1 5 0 8 0 pipepl 328 493 0 466 13 7 6 8 0 8 3 fdescpl 504 2392 0 2360 5 0 5 5 0 8 0 filepl 152 17430 0 17202 37 23 14 19 0 8 2 lockfpl 104 813 0 810 2 1 1 2 0 8 0 lockfspl 48 276 0 273 1 0 1 1 0 8 0 sessionpl 144 46 0 38 1 0 1 1 0 8 0 pgrppl 48 68 0 52 1 0 1 1 0 8 0 ucredpl 104 2896 0 2883 1 0 1 1 0 8 0 zombiepl 144 2364 0 2364 2 1 1 1 0 8 1 processpl 1168 2435 0 2364 6 0 6 6 0 8 0 procpl 648 5497 0 5418 9 1 8 8 0 8 0 srpgc 96 5 0 5 3 2 1 1 0 8 1 sosppl 168 21 0 21 3 3 0 1 0 8 0 sockpl 688 4820 0 4779 54 44 10 16 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 1 14 15 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 29 0 0 1 0 1 1 0 8 0 mbufpl 256 272 0 0 16 0 16 16 0 8 0 bufpl 280 7652 0 1486 441 0 441 441 0 8 0 anonpl 24 331743 0 323006 180 81 99 104 0 185 21 amapchunkpl 152 69198 0 68599 60 30 30 35 0 158 4 amappl16 200 7150 0 6884 84 52 32 40 0 8 6 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 224 0 213 1 0 1 1 0 8 0 amappl13 176 18 0 18 1 1 0 1 0 8 0 amappl12 168 3066 0 3036 3 1 2 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 256 0 255 3 2 1 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 132 0 119 1 0 1 1 0 8 0 amappl6 120 200 0 197 1 0 1 1 0 8 0 amappl5 112 133 0 122 1 0 1 1 0 8 0 amappl4 104 403 0 384 1 0 1 1 0 8 0 amappl3 96 14352 0 14239 4 0 4 4 0 8 0 amappl2 88 856 0 794 2 0 2 2 0 8 0 amappl1 80 18252 0 17707 16 2 14 14 0 8 0 amappl 88 20468 0 20289 5 0 5 5 0 92 0 dma8192 8192 2 0 2 2 2 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 2 0 2 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 62 0 7 2 0 2 2 0 8 0 uaddrrnd 24 2392 0 2360 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2392 0 2360 1 0 1 1 0 8 0 vmmpekpl 168 20949 0 20902 3 0 3 3 0 8 0 vmmpepl 168 154279 0 152159 155 41 114 117 0 357 12 vmsppl 456 2391 0 2360 7 2 5 5 0 8 0 rwobjpl 64 47579 0 40460 129 10 119 124 0 8 2 pdppl 4096 4791 0 4720 125 54 71 79 0 8 0 pvpl 32 23603 0 0 190 0 190 190 0 265 0 pmappl 248 2391 0 2360 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 351 0 96 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830a5007) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff80000140d200) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff80000140d200,ffff80002f162600) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(71700,8020426c,ffff80002f162600,1,ffff8000ffff67c0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd8065c9bcb8,8020426c,ffff80002f162600,1,fffffd807f7d3138,ffff8000ffff67c0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8069941608,8020426c,ffff80002f162600,ffff8000ffff67c0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff67c0,ffff80002f1627e0,ffff80002f162730) at sys_ioctl+0x5c3 syscall(ffff80002f1627e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f1627e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf6cea3320, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b5bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b5bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029b5bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b5bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5