panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 72449 92587 32767 0x10 0 1 syz-executor *215901 92587 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bbfb0) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,7) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80002b1422d4,3,20000140,ffff80002b142308,0,0,db6d75892292ddae) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff8000303cb218,ffff80002b142440,ffff80002b142390) at sys_sysctl+0x422 syscall(ffff80002b142440) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002b142440) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3b9cd48890, 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: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bbfb0) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,7) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80002b1422d4,3,20000140,ffff80002b142308,0,0,db6d75892292ddae) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff8000303cb218,ffff80002b142440,ffff80002b142390) at sys_sysctl+0x422 syscall(ffff80002b142440) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002b142440) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3b9cd48890, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002b142050 rbx 0xffffffff8341bdcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff8000303cb218 rax 0xffffffff8341aff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6b48832a43bec50e r11 0x777d9e7707cf6a50 r12 0xffffffff8341bbd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff816bc715 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002b142040 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=215901 pid=92587 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=83, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000303ca2e8,0xffff800029fe7c20 process=0xffff8000fffedb50 user=0xffff80002b13d000, vmspace=0xfffffd80566c26f8 estcpu=33, cpticks=2, pctcpu=0.1, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92587 72449 37864 32767 7 0x10 syz-executor *92587 215901 37864 32767 7 0x4000010 syz-executor 92587 107868 37864 32767 2 0x4000010 syz-executor 92587 239211 37864 32767 2 0x4000010 syz-executor 80950 74295 34006 32767 3 0x90 nanoslp syz-executor 80950 57661 34006 32767 3 0x4000090 kqsel syz-executor 80950 375704 34006 32767 3 0x4000090 sbwait syz-executor 80950 434937 34006 32767 3 0x4000090 fsleep syz-executor 8138 109088 32592 32767 2 0x490 syz-executor 8138 427353 32592 32767 3 0x4000090 ttyout syz-executor 8138 158953 32592 32767 3 0x4000090 ttyout syz-executor 8138 365892 32592 32767 3 0x4000090 fsleep syz-executor 8138 459752 32592 32767 3 0x4000090 fsleep syz-executor 20362 318426 95183 32767 2 0x490 syz-executor 20362 20765 95183 32767 3 0x4000090 ttyout syz-executor 20362 367280 95183 32767 3 0x4000090 fsleep syz-executor 20362 478220 95183 32767 3 0x4000090 fsleep syz-executor 62575 112172 81580 32767 3 0x90 nanoslp syz-executor 62575 345493 81580 32767 3 0x4000090 kqsel syz-executor 62575 430868 81580 32767 3 0x4000090 fsleep syz-executor 32341 82640 35638 32767 2 0x490 syz-executor 32341 346669 35638 32767 3 0x4000090 ttyin syz-executor 95183 272266 27697 32767 3 0x90 nanoslp syz-executor 27697 43244 15093 0 3 0x82 wait syz-executor 35638 217371 84137 32767 2 0x490 syz-executor 84137 21036 15093 0 3 0x82 wait syz-executor 23109 162618 61132 32767 2 0x490 syz-executor 61132 305141 15093 0 3 0x82 wait syz-executor 81580 117802 66806 32767 2 0x490 syz-executor 66806 421937 15093 0 3 0x82 wait syz-executor 32592 364399 513 32767 2 0x490 syz-executor 513 145502 15093 0 3 0x82 wait syz-executor 56121 219675 82361 32767 3 0x90 wait syz-executor 82361 517422 15093 0 3 0x82 wait syz-executor 37864 49099 27707 32767 3 0x90 nanoslp syz-executor 27707 27562 15093 0 3 0x82 wait syz-executor 34006 206081 28044 32767 3 0x90 nanoslp syz-executor 28044 285470 15093 0 3 0x82 wait syz-executor 26957 270285 41659 0 3 0x100082 sbwait arp 41659 107674 33268 0 3 0x10008a sigsusp sh 33268 238889 1 0 3 0x80 wait syz-executor 1418 191577 42024 0 3 0x100082 sbwait ndp 42024 495224 7229 0 3 0x10008a sigsusp sh 7229 251780 1 0 3 0x80 wait syz-executor 23670 327891 0 0 3 0x14200 bored sosplice 15093 273889 54136 0 3 0x82 kqread syz-executor 54136 195170 76038 0 3 0x10008a sigsusp ksh 76038 308367 60042 0 3 0x98 kqread sshd-session 60042 438148 64070 0 3 0x92 kqread sshd-session 39143 136014 1 0 3 0x100083 ttyin getty 64070 118520 1 0 3 0x88 kqread sshd 5696 109215 68959 73 3 0x1100090 kqread syslogd 68959 428627 1 0 3 0x100082 sbwait syslogd 88144 277067 1 0 3 0x100080 kqread resolvd 6488 336211 26740 77 3 0x100092 kqread dhcpleased 34284 314227 26740 77 3 0x100092 kqread dhcpleased 26740 508883 1 0 3 0x80 kqread dhcpleased 10616 28749 0 0 3 0x14200 bored smr 64825 290966 0 0 3 0x14200 pgzero zerothread 77476 160819 0 0 3 0x14200 aiodoned aiodoned 99815 237624 0 0 3 0x14200 syncer update 13070 27043 0 0 3 0x14200 cleaner cleaner 89850 436241 0 0 3 0x14200 reaper reaper 40295 469938 0 0 3 0x14200 pgdaemon pagedaemon 32552 348732 0 0 3 0x14200 bored viomb 97416 187086 0 0 3 0x40014200 acpi0 acpi0 3848 72688 0 0 3 0x40014200 idle1 1288 279793 0 0 3 0x14200 bored softnet3 13236 180140 0 0 3 0x14200 bored softnet2 90696 250674 0 0 3 0x14200 bored softnet1 37868 121886 0 0 3 0x14200 bored softnet0 84851 199971 0 0 3 0x14200 bored systqmp 80936 354923 0 0 3 0x14200 bored systq 82595 475239 0 0 2 0x14200 softclockmp 62262 259366 0 0 2 0x40014200 softclock 29140 355170 0 0 3 0x40014200 idle0 1 449495 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 92587 (syz-executor) thread 0xffff8000303ca2e8 (72449) exclusive rwlock amaplk r = 0 (0xfffffd8075469478) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80566c27e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 92587 (syz-executor) thread 0xffff8000303cb218 (215901) shared rwlock vmmaplk r = 0 (0xfffffd80566c27e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #3 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 #4 net_sysctl+0x69a sys/kern/uipc_domain.c:251 #5 sys_sysctl+0x422 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83523de8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #6 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 #7 net_sysctl+0x69a sys/kern/uipc_domain.c:251 #8 sys_sysctl+0x422 #9 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #9 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8345ed50) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 11052K 11059K 166960K 13754 0 pcb 17 28K 30K 166960K 29 0 rtable 246 7K 7K 166960K 28942 0 pf 31 16K 16K 166960K 1673 0 ifaddr 42 15K 18K 166960K 3319 0 ifgroup 50 2K 2K 166960K 3326 0 sysctl 4 1K 5K 166960K 146 0 counters 64 36K 36K 166960K 1698 0 ioctlops 0 0K 2K 166960K 2258 0 iov 0 0K 36K 166960K 5728 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1470 92K 92K 166960K 23341 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 1089 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 3086 0 dirhash 27 5K 5K 166960K 1296 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 33 122K 177K 166960K 58910 0 sigio 0 0K 0K 166960K 2227 0 proc 58 79K 176K 166960K 28699 0 subproc 130 8K 13K 166960K 11739 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 4 0K 0K 166960K 14275 0 in_multi 99 7K 8K 166960K 11578 0 ether_multi 1 0K 0K 166960K 393 0 mrt 1 0K 0K 166960K 15 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 277 1235K 1235K 166960K 277 0 exec 0 0K 1K 166960K 22885 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 340 94K 140K 166960K 514141 0 UVM aobj 131 4K 6K 166960K 143 0 pinsyscall 55 110K 144K 166960K 83279 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 4185 0 NDP 11 0K 2K 166960K 2473 0 temp 87 6824K 6954K 166960K 452077 0 kqueue 14 22K 35K 166960K 10213 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 8996 0 8991 52 51 1 3 0 8 0 rtentry 112 9681 0 9565 14 10 4 4 0 8 0 unpcb 144 58824 0 58809 249 243 6 10 0 8 5 syncache 336 1215 0 1215 30 29 1 1 0 8 1 tcpqe 32 577 0 577 48 47 1 1 0 8 1 tcpcb 808 41409 0 41353 321 308 13 31 0 8 0 arp 120 1689 0 1670 1 0 1 1 0 8 0 ipq 40 321 0 319 1 0 1 1 0 8 0 ipqe 40 5648 0 5644 1 0 1 1 0 8 0 inpcb 336 91291 0 91226 340 325 15 27 0 8 0 ip6q 72 20 0 20 17 17 0 1 0 8 0 ip6af 40 39 0 39 17 17 0 1 0 8 0 nd6 136 3030 0 3001 13 11 2 2 0 8 0 kcovpl 48 903 0 893 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 39380 0 38898 209 177 32 33 0 8 1 art_table 32 39381 0 38898 17 12 5 5 0 8 1 art_node 16 9680 0 9574 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 13 3 2 1 1 0 8 0 semapl 112 2988 0 2978 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 888 0 853 27 22 5 5 0 8 0 dino2pl 256 78476 0 73835 292 1 291 291 0 8 0 ffsino 272 78476 0 73835 310 0 310 310 0 8 0 nchpl 144 144950 0 141764 119 0 119 119 0 8 0 uvmvnodes 80 11381 0 0 233 0 233 233 0 8 0 vnodes 216 11381 0 0 633 0 633 633 0 8 0 namei 1024 616733 0 616733 51 50 1 2 0 8 1 percpumem 16 863 0 817 1 0 1 1 0 8 0 kstatmem 264 1656 0 1634 3 1 2 2 0 8 0 scxspl 216 552505 0 552505 131 128 3 8 1 8 3 plimitpl 152 19338 0 19309 2 0 2 2 0 8 0 sigapl 424 57828 0 57765 22 14 8 9 0 8 0 futexpl 64 716635 0 716629 31 30 1 1 0 8 0 knotepl 120 2242 0 0 32 1 31 31 0 8 0 kqueuepl 216 22316 0 22302 174 170 4 10 0 8 3 pipepl 320 12927 0 12892 156 152 4 14 0 8 0 fdescpl 496 57809 0 57765 18 11 7 8 0 8 0 filepl 152 433318 0 433016 285 268 17 30 0 8 2 lockfpl 104 17500 0 17497 8 6 2 2 0 8 1 lockfspl 48 4941 0 4938 1 0 1 1 0 8 0 sessionpl 144 1270 0 1252 1 0 1 1 0 8 0 pgrppl 48 3511 0 3485 1 0 1 1 0 8 0 ucredpl 104 86592 0 86573 1 0 1 1 0 8 0 zombiepl 144 57767 0 57765 1 0 1 1 0 8 0 processpl 1160 57828 0 57765 6 0 6 6 0 8 0 procpl 648 138721 0 138642 13 5 8 8 0 8 0 srpgc 96 28 0 28 12 12 0 1 0 8 0 sosppl 168 719 0 712 18 17 1 1 0 8 0 sockpl 664 160723 0 160635 519 500 19 32 0 8 1 mcl64k 65536 78 0 0 4 0 4 4 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 311 0 0 21 10 11 21 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 653 0 0 17 11 6 12 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 7510 0 0 418 0 418 418 0 8 0 bufpl 280 101113 0 89674 818 0 818 818 0 8 0 anonpl 24 7090492 0 7073190 653 518 135 144 0 185 1 amapchunkpl 152 1691270 0 1690272 483 434 49 54 0 158 3 amappl16 200 168355 0 167761 701 658 43 49 0 8 4 amappl15 192 15 0 15 11 10 1 1 0 8 1 amappl14 184 2666 0 2654 1 0 1 1 0 8 0 amappl13 176 49 0 48 2 1 1 1 0 8 0 amappl12 168 71885 0 71839 9 6 3 3 0 8 0 amappl11 160 52 0 41 1 0 1 1 0 8 0 amappl10 152 16 0 15 2 1 1 1 0 8 0 amappl9 144 128 0 127 2 1 1 1 0 8 0 amappl8 136 51 0 48 1 0 1 1 0 8 0 amappl7 128 2248 0 2235 1 0 1 1 0 8 0 amappl6 120 8330 0 8325 1 0 1 1 0 8 0 amappl5 112 3842 0 3832 1 0 1 1 0 8 0 amappl4 104 4492 0 4474 1 0 1 1 0 8 0 amappl3 96 346805 0 346634 8 3 5 5 0 8 0 amappl2 88 17280 0 17210 5 2 3 3 0 8 0 amappl1 80 343615 0 343002 46 29 17 26 0 8 0 amappl 88 501496 0 501220 8 1 7 7 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 57810 0 57766 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 57810 0 57766 1 0 1 1 0 8 0 vmmpekpl 168 517035 0 516980 7 3 4 5 0 8 0 vmmpepl 168 3734099 0 3731149 564 414 150 157 0 357 6 vmsppl 440 57809 0 57766 9 2 7 7 0 8 0 rwobjpl 56 946053 0 932901 261 72 189 191 0 8 0 pdppl 4096 115627 0 115532 1749 1652 97 125 0 8 2 pvpl 32 49169 0 0 395 0 395 395 0 265 0 pmappl 248 57809 0 57766 5 1 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3798 0 2587 35 0 35 35 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(ffffffff830bbfb0) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd80566c26f8,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,7) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 net_sysctl(ffff80002b1422d4,3,20000140,ffff80002b142308,0,0,db6d75892292ddae) at net_sysctl+0x69a sys/kern/uipc_domain.c:251 sys_sysctl(ffff8000303cb218,ffff80002b142440,ffff80002b142390) at sys_sysctl+0x422 syscall(ffff80002b142440) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002b142440) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3b9cd48890, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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 __mp_lock(ffffffff83523be0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83523be0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a09e3e0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a09e3e0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7034e56734f0, count: 9 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 __mp_lock(ffffffff83523be0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83523be0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a09e3e0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a09e3e0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7034e56734f0, count: -6