login: panic: malloc: allocation too large, type = 2, size = 1768304430 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 361348 76837 0 0 0 1 syz-executor *295163 76837 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff800001315a00) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff800001315a00,ffff80003c1e2990) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c1e2990,1,ffff80003c1e47d0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd800afbca58,8020426c,ffff80003c1e2990,1,fffffd807f7d34e0,ffff80003c1e47d0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8062d40010,8020426c,ffff80003c1e2990,ffff80003c1e47d0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c1e47d0,ffff80003c1e2b70,ffff80003c1e2ac0) at sys_ioctl+0x5c3 syscall(ffff80003c1e2b70) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c1e2b70) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3cc32fb5d0, 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(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff800001315a00) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff800001315a00,ffff80003c1e2990) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c1e2990,1,ffff80003c1e47d0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd800afbca58,8020426c,ffff80003c1e2990,1,fffffd807f7d34e0,ffff80003c1e47d0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8062d40010,8020426c,ffff80003c1e2990,ffff80003c1e47d0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c1e47d0,ffff80003c1e2b70,ffff80003c1e2ac0) at sys_ioctl+0x5c3 syscall(ffff80003c1e2b70) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c1e2b70) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3cc32fb5d0, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c1e2510 rbx 0xffffffff834cddc7 cpu_info_full_primary+0x2dc7 rdx 0xffff80000129d5c0 rcx 0xffff80003c1e47d0 rax 0xffffffff834ccff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa84dedfed426b553 r11 0x1fa163b896cc69f6 r12 0xffffffff834cdbc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82a6fbd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c1e2500 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=295163 pid=76837 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=0xffff80003c1e4f68,0xffff80003c1e5c20 process=0xffff80003c5ccb58 user=0xffff80003c1dd000, vmspace=0xfffffd806ecab8f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 5038 342224 18311 0 2 0 syz-executor 94989 410415 20178 0 2 0 syz-executor 76837 361348 31501 0 7 0 syz-executor *76837 295163 31501 0 7 0x4000000 syz-executor 35601 110614 21841 0 2 0 syz-executor 35601 199510 21841 0 3 0x4000080 fsleep syz-executor 99590 85364 20856 0 2 0 syz-executor 99590 254792 20856 0 3 0x4000080 fsleep syz-executor 82724 69039 31277 0 3 0x80 nanoslp syz-executor 82724 364008 31277 0 3 0x4000080 sbwait syz-executor 82724 376388 31277 0 3 0x4000080 fsleep syz-executor 57319 497406 1 0 3 0x100083 ttyin getty 2734 513685 0 0 3 0x14280 nfsidl nfsio 79818 484583 0 0 3 0x14280 nfsidl nfsio 48826 258855 0 0 3 0x14280 nfsidl nfsio 16724 256682 0 0 3 0x14280 nfsidl nfsio 54828 144251 0 0 3 0x14280 nfsidl nfsio 75344 516367 0 0 3 0x14280 nfsidl nfsio 83908 121885 0 0 3 0x14280 nfsidl nfsio 40915 34586 0 0 3 0x14280 nfsidl nfsio 43560 459097 0 0 3 0x14280 nfsidl nfsio 84394 430476 0 0 3 0x14280 nfsidl nfsio 17062 354489 0 0 3 0x14280 nfsidl nfsio 76250 43520 0 0 3 0x14280 nfsidl nfsio 72365 185419 0 0 3 0x14280 nfsidl nfsio 99428 239340 0 0 3 0x14280 nfsidl nfsio 18607 473944 0 0 3 0x14280 nfsidl nfsio 55067 91091 0 0 3 0x14280 nfsidl nfsio 75975 463516 0 0 3 0x14280 nfsidl nfsio 53523 74815 0 0 3 0x14280 nfsidl nfsio 59770 365598 0 0 3 0x14280 nfsidl nfsio 619 516706 0 0 3 0x14280 nfsidl nfsio 21841 122374 18206 0 3 0x82 nanoslp syz-executor 37319 368941 0 0 3 0x14200 acct acct 84193 488462 0 0 3 0x14200 bored sosplice 12621 42363 18206 0 3 0x82 wait syz-executor 31501 344835 18206 0 3 0x82 nanoslp syz-executor 31277 296347 18206 0 3 0x82 nanoslp syz-executor 25882 481875 18206 0 3 0x82 wait syz-executor 20856 251583 18206 0 3 0x82 nanoslp syz-executor 18311 451311 18206 0 3 0x82 nanoslp syz-executor 20178 82348 18206 0 3 0x82 nanoslp syz-executor 18206 491908 68198 0 3 0x82 kqread syz-executor 68198 413970 70022 0 3 0x10008a sigsusp ksh 70022 399675 80600 0 3 0x98 kqread sshd-session 80600 413315 69332 0 3 0x92 kqread sshd-session 69332 159253 1 0 3 0x88 kqread sshd 66375 495683 7904 74 3 0x1100092 bpf pflogd 7904 161353 1 0 3 0x80 sbwait pflogd 94058 234898 90212 73 3 0x1100090 kqread syslogd 90212 408425 1 0 3 0x100082 sbwait syslogd 11108 507914 1 0 3 0x100080 kqread resolvd 28799 521329 52806 77 3 0x100092 kqread dhcpleased 48864 181372 52806 77 3 0x100092 kqread dhcpleased 52806 214123 1 0 3 0x80 kqread dhcpleased 68249 331111 0 0 3 0x14200 bored smr 23932 414162 0 0 2 0x14200 zerothread 63081 89876 0 0 3 0x14200 aiodoned aiodoned 35514 324738 0 0 3 0x14200 syncer update 21956 299851 0 0 3 0x14200 cleaner cleaner 96399 317810 0 0 3 0x14200 reaper reaper 4030 457945 0 0 3 0x14200 pgdaemon pagedaemon 22970 393732 0 0 3 0x14200 bored viomb 72009 18109 0 0 3 0x40014200 acpi0 acpi0 80032 22976 0 0 3 0x40014200 idle1 15737 10060 0 0 3 0x14200 bored softnet3 72589 100442 0 0 3 0x14200 bored softnet2 24297 307973 0 0 3 0x14200 bored softnet1 67537 18620 0 0 3 0x14200 bored softnet0 53236 222473 0 0 3 0x14200 bored systqmp 97132 316454 0 0 3 0x14200 bored systq 42725 257434 0 0 3 0x14200 tmoslp softclockmp 59212 343071 0 0 3 0x40014200 tmoslp softclock 44912 262995 0 0 3 0x40014200 idle0 1 426667 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &bd->bd_mtx r = 0 (0xffff800001315a18) #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 76837 (syz-executor) thread 0xffff80003c1e47d0 (295163) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8360db10) #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 (0xffff800001315a18) #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 10205 11104K 11829K 166960K 13124 0 pcb 17 13K 13K 166960K 185 0 rtable 169 6K 7K 166960K 570 0 pf 34 17K 22K 166960K 95 0 ifaddr 33 5K 7K 166960K 71 0 ifgroup 54 2K 2K 166960K 105 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 96 0 ioctlops 0 0K 4K 166960K 1666 0 iov 0 0K 17K 166960K 169 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1421 89K 90K 166960K 2418 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 24 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 85 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 93K 166960K 1214 0 sigio 1 0K 0K 166960K 24 0 proc 73 91K 128K 166960K 673 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 124 0 in_multi 66 4K 6K 166960K 164 0 ether_multi 1 0K 0K 166960K 10 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 736 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 73K 89K 166960K 13264 0 UVM aobj 30 2K 2K 166960K 31 0 pinsyscall 43 86K 104K 166960K 2391 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 73 0 NDP 11 0K 2K 166960K 48 0 temp 61 6895K 6964K 166960K 49373 0 kqueue 13 20K 31K 166960K 218 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 120 150 0 146 2 1 1 2 0 8 0 rtentry 112 155 0 82 3 0 3 3 0 8 0 unpcb 144 744 0 724 7 6 1 4 0 8 0 syncache 336 12 0 12 4 4 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 808 413 0 406 14 12 2 7 0 8 1 arp 120 26 0 13 1 0 1 1 0 8 0 inpcb 376 1429 0 1418 18 13 5 8 0 8 3 nd6 136 32 0 16 1 0 1 1 0 8 0 pkpcb 40 12 0 12 3 3 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 11 0 11 4 3 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 7 0 3 1 0 1 1 0 482 0 pffrnode 88 7 0 3 1 0 1 1 0 8 0 pffrent 40 58 0 54 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 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 94 0 27 1 0 1 1 0 8 0 pfstkey 128 95 0 28 3 0 3 3 0 8 0 pfstate 376 95 0 28 8 0 8 8 0 8 0 pfrule 1344 28 0 20 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 614 0 300 26 4 22 26 0 8 0 art_table 32 617 0 300 4 0 4 4 0 8 0 art_node 16 153 0 88 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 3 1 0 1 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 28 0 1 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3632 0 2133 95 0 95 95 0 8 0 ffsino 280 3632 0 2133 108 0 108 108 0 8 0 nchpl 144 5453 0 4910 63 40 23 63 0 8 0 uvmvnodes 80 4351 0 0 89 0 89 89 0 8 0 vnodes 216 4351 0 0 242 0 242 242 0 8 0 namei 1024 20078 0 20078 5 4 1 2 0 8 1 percpumem 16 62 0 17 1 0 1 1 0 8 0 kstatmem 264 56 0 34 2 0 2 2 0 8 0 scsiplug 72 8 0 8 4 4 0 1 0 8 0 scxspl 216 15675 0 15675 14 13 1 8 1 8 1 plimitpl 152 180 0 162 1 0 1 1 0 8 0 sigapl 424 1551 0 1479 10 1 9 9 0 8 0 futexpl 64 16365 0 16362 1 0 1 1 0 8 0 knotepl 120 418 0 0 12 0 12 12 0 8 0 kqueuepl 216 403 0 394 4 3 1 3 0 8 0 pipepl 328 225 0 197 3 0 3 3 0 8 0 fdescpl 504 1510 0 1478 5 0 5 5 0 8 0 filepl 152 10403 0 10181 24 12 12 16 0 8 2 lockfpl 104 336 0 334 1 0 1 1 0 8 0 lockfspl 48 143 0 141 1 0 1 1 0 8 0 sessionpl 144 32 0 23 1 0 1 1 0 8 0 pgrppl 48 56 0 39 1 0 1 1 0 8 0 ucredpl 104 1685 0 1670 1 0 1 1 0 8 0 zombiepl 144 1724 0 1722 2 1 1 1 0 8 0 processpl 1168 1551 0 1479 7 1 6 6 0 8 0 procpl 648 3429 0 3352 8 0 8 8 0 8 0 srpgc 96 10 0 10 4 4 0 1 0 8 0 sosppl 168 5 0 5 4 4 0 1 0 8 0 sockpl 688 2459 0 2425 24 17 7 10 0 8 3 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 109 0 0 14 0 14 14 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 94 0 0 3 0 3 3 0 8 0 mbufpl 256 302 0 0 18 0 18 18 0 8 0 bufpl 280 4661 0 134 324 0 324 324 0 8 0 anonpl 24 217394 0 212385 90 34 56 57 0 185 17 amapchunkpl 152 47334 0 46784 44 19 25 40 0 158 0 amappl16 200 4536 0 4471 48 31 17 17 0 8 9 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 131 0 118 1 0 1 1 0 8 0 amappl13 176 5 0 5 2 2 0 1 0 8 0 amappl12 168 2185 0 2155 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 249 0 248 1 0 1 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 141 0 128 1 0 1 1 0 8 0 amappl6 120 196 0 193 1 0 1 1 0 8 0 amappl5 112 133 0 123 1 0 1 1 0 8 0 amappl4 104 354 0 335 1 0 1 1 0 8 0 amappl3 96 8658 0 8549 4 0 4 4 0 8 0 amappl2 88 747 0 685 2 0 2 2 0 8 0 amappl1 80 12987 0 12416 14 0 14 14 0 8 0 amappl 88 12748 0 12575 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 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 128 257 0 257 4 4 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 30 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1510 0 1478 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1510 0 1478 1 0 1 1 0 8 0 vmmpekpl 168 13618 0 13568 3 0 3 3 0 8 0 vmmpepl 168 99283 0 97337 117 22 95 98 0 357 4 vmsppl 456 1509 0 1478 6 1 5 5 0 8 0 rwobjpl 64 32735 0 27389 94 3 91 91 0 8 3 pdppl 4096 3027 0 2956 117 46 71 85 0 8 0 pvpl 32 17124 0 0 138 0 138 138 0 265 0 pmappl 248 1509 0 1478 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 327 0 79 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(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff800001315a00) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff800001315a00,ffff80003c1e2990) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c1e2990,1,ffff80003c1e47d0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd800afbca58,8020426c,ffff80003c1e2990,1,fffffd807f7d34e0,ffff80003c1e47d0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8062d40010,8020426c,ffff80003c1e2990,ffff80003c1e47d0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c1e47d0,ffff80003c1e2b70,ffff80003c1e2ac0) at sys_ioctl+0x5c3 syscall(ffff80003c1e2b70) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c1e2b70) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3cc32fb5d0, 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 end of kernel end trace frame: 0x75796d163400, count: 12 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 end of kernel end trace frame: 0x75796d163400, count: -3