uvm_fault(0xfffffd80611c8028, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff819aaa18 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80002a319800 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff819aaa18 Starting stack trace... panic(ffffffff8339ed07) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a319750) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001474000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,1,2000,ffff800033c08550) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff800033c08550) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a319900) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065f29200,1,fffffd80097fb270,ffff800033c08550) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c6ef5b8,ffff800033c08550) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c6ef5b8,ffff800033c08550) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c6ef5b8,ffff800033c08550) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c6ef5b8,ffff800033c08550) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800033c08550) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800033c08550,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800033c08550,ffff80002a319c70,ffff80002a319bc0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a319c70) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a319c70) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76c3b8361d10, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *459032 18415 0 0 0 1 syz-executor 178058 35626 0 0x14000 0x200 0 reaper proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734ab61f4030, count: 14 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd80611c8028, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734ab61f4030, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c487db0 rbx 0 rdx 0 rcx 0xffff800033c08fb0 rax 0x2a r8 0xffff80003c487ce0 r9 0x1 r10 0x855851a3009d2468 r11 0xa7711fd36ee1e8c r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8136f4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c487d30 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=459032 pid=18415 tcnt=3 stat=onproc flags process=0 proc=0 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800033c09a10,0xffff80003c43fa38 process=0xffff800038424ec0 user=0xffff80003c482000, vmspace=0xfffffd806b8335d8 estcpu=36, cpticks=10, pctcpu=0.2, user=9, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15164 274721 12613 0 2 0 syz-executor *18415 459032 17126 0 7 0 syz-executor 18415 466299 17126 0 2 0x4000000 syz-executor 18415 486538 17126 0 2 0x4000000 syz-executor 75248 34195 96498 0 2 0 syz-executor 75248 105810 96498 0 2 0x4000000 syz-executor 75248 22928 96498 0 2 0x4000000 syz-executor 45546 253992 2057 0 2 0 syz-executor 45546 864 2057 0 2 0x4000000 syz-executor 28426 121140 89041 0 2 0x2 syz-executor 8634 180242 0 0 3 0x14200 acct acct 41294 80663 1 0 3 0x100083 ttyin getty 11605 365263 89041 0 3 0x82 nanoslp syz-executor 12613 84302 89041 0 2 0x3 syz-executor 2057 95633 89041 0 3 0x82 nanoslp syz-executor 11755 156482 0 0 3 0x14200 bored sosplice 69835 452806 89041 0 2 0x2 syz-executor 17126 481919 89041 0 3 0x82 nanoslp syz-executor 96498 163345 89041 0 3 0x82 nanoslp syz-executor 89041 34492 51341 0 2 0x2 syz-executor 51341 174083 34846 0 3 0x10008a sigsusp ksh 34846 259244 85605 0 3 0x98 kqread sshd-session 85605 328651 65877 0 3 0x92 kqread sshd-session 65877 223687 1 0 3 0x88 kqread sshd 91688 488388 96604 74 3 0x1100092 bpf pflogd 96604 126057 1 0 3 0x80 sbwait pflogd 99630 133525 33554 73 3 0x1100090 kqread syslogd 33554 398592 1 0 3 0x100082 sbwait syslogd 22592 363794 1 0 3 0x100080 kqread resolvd 5504 9091 8087 77 3 0x100092 kqread dhcpleased 97417 123522 8087 77 3 0x100092 kqread dhcpleased 8087 66175 1 0 3 0x80 kqread dhcpleased 9180 254387 0 0 3 0x14200 bored smr 89904 24204 0 0 2 0x14200 zerothread 88918 200028 0 0 3 0x14200 aiodoned aiodoned 72307 156506 0 0 3 0x14200 syncer update 23693 132185 0 0 3 0x14200 cleaner cleaner 35626 178058 0 0 7 0x14200 reaper 29365 403036 0 0 3 0x14200 pgdaemon pagedaemon 53439 467572 0 0 3 0x14200 bored viomb 28255 20275 0 0 3 0x40014200 acpi0 acpi0 87819 145693 0 0 3 0x40014200 idle1 36598 363651 0 0 3 0x14200 bored softnet7 34538 511360 0 0 3 0x14200 bored softnet6 80536 413692 0 0 3 0x14200 bored softnet5 45825 406412 0 0 3 0x14200 bored softnet4 32702 168301 0 0 3 0x14200 bored softnet3 47263 55390 0 0 3 0x14200 bored softnet2 50394 395969 0 0 3 0x14200 bored softnet1 34439 362839 0 0 3 0x14200 netlock softnet0 14459 431659 0 0 2 0x40014200 systqmp 49601 243341 0 0 3 0x14200 bored systq 69281 128786 0 0 3 0x14200 tmoslp softclockmp 74116 116956 0 0 3 0x40014200 tmoslp softclock 1249 298206 0 0 3 0x40014200 idle0 1 469810 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 18415 (syz-executor) thread 0xffff80003c43e800 (466299) exclusive rwlock vmmaplk r = 0 (0xfffffd806b8336d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918 #4 uvm_fault_check+0x895 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x895 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #7 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #8 recall_trap+0x8 Process 75248 (syz-executor) thread 0xffff80003c43fa28 (105810) exclusive rwlock fdlock r = 0 (0xffff800038423300) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #4 Xsyscall+0x128 Process 45546 (syz-executor) thread 0xffff800033c087e8 (864) exclusive rwlock fdlock r = 0 (0xffff800038423930) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #4 Xsyscall+0x128 Process 35626 (reaper) thread 0xffff8000ffffc008 (178058) exclusive rwlock kmmaplk r = 0 (0xffffffff8398d050) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1aa sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10246 11067K 12418K 166960K 16547 0 pcb 17 18K 34K 166960K 884 0 rtable 199 12K 13K 166960K 1220 0 pf 36 17K 67486K 166960K 340 0 ifaddr 37 7K 9K 166960K 286 0 ifgroup 57 2K 3K 166960K 447 0 sysctl 4 1K 9K 166960K 26 0 counters 72 37K 38K 166960K 420 0 ioctlops 0 0K 4K 166960K 2146 0 iov 0 0K 44K 166960K 250 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1478 93K 94K 166960K 4828 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 26 29K 29K 166960K 170 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 236K 166960K 3704 0 sigio 1 0K 0K 166960K 116 0 proc 72 115K 164K 166960K 1666 0 subproc 66 4K 4K 166960K 328 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 690 0 in_multi 67 5K 7K 166960K 512 0 ether_multi 1 0K 0K 166960K 26 0 mrt 1 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 1395 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 230 168K 192K 166960K 33702 0 UVM aobj 91 5K 5K 166960K 99 0 pinsyscall 40 80K 102K 166960K 5513 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 220 0 NDP 15 0K 1K 166960K 207 0 temp 78 8651K 8894K 166960K 187070 0 kqueue 13 20K 30K 166960K 631 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 378 0 375 3 2 1 3 0 8 0 rtentry 176 443 0 376 5 0 5 5 0 8 0 unpcb 144 2948 0 2930 26 25 1 6 0 8 0 syncache 336 12 0 12 8 8 0 1 0 8 0 tcpqe 32 6 0 6 5 5 0 1 0 8 0 tcpcb 736 1113 0 1107 32 26 6 10 0 8 5 arp 128 60 0 48 1 0 1 1 0 8 0 inpcb 328 3669 0 3658 46 40 6 13 0 8 4 nd6 144 83 0 70 1 0 1 1 0 8 0 pkpcb 40 24 0 24 8 7 1 1 0 8 1 kcovpl 48 36 0 29 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 116 0 114 6 5 1 1 0 8 0 pppxif 1504 16 0 16 7 7 0 1 0 8 0 pffrag 232 15 0 13 1 0 1 1 0 482 0 pffrnode 88 10 0 8 1 0 1 1 0 8 0 pffrent 40 21 0 18 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 2 0 2 2 2 0 1 0 8 0 pfstitem 24 40 0 35 1 0 1 1 0 8 0 pfstkey 128 40 0 35 2 1 1 2 0 8 0 pfstate 384 40 0 35 4 3 1 4 0 8 0 pfrule 1344 25 0 19 2 1 1 2 0 8 0 rttmr 136 4 0 4 4 4 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 2034 0 1729 33 9 24 29 0 8 0 art_table 40 2038 0 1729 5 0 5 5 0 8 0 art_node 32 442 0 387 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 14 3 2 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 160 0 136 1 0 1 1 0 8 0 shmpl 112 96 0 8 3 0 3 3 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 7811 0 6243 99 0 99 99 0 8 0 ffsino 296 7811 0 6243 121 0 121 121 0 8 0 nchpl 144 12663 0 10885 67 0 67 67 0 8 0 rtmask 32 28 0 27 5 4 1 1 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 46853 0 46853 4 3 1 2 0 8 1 percpumem 16 225 0 174 1 0 1 1 0 8 0 kstatmem 264 272 0 242 3 0 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 10 0 10 6 6 0 1 0 8 0 scxspl 216 85833 0 85833 19 18 1 8 1 8 1 plimitpl 152 1065 0 1046 1 0 1 1 0 8 0 sigapl 424 3933 0 3880 7 0 7 7 0 8 0 knotepl 120 645 0 0 18 0 18 18 0 8 0 kqueuepl 224 1303 0 1294 13 12 1 5 0 8 0 pipepl 344 667 0 640 11 7 4 9 0 8 0 fdescpl 528 3906 0 3877 3 0 3 3 0 8 0 filepl 160 27307 0 27100 40 27 13 21 0 8 0 lockfpl 104 1675 0 1673 5 4 1 2 0 8 0 lockfspl 48 643 0 641 1 0 1 1 0 8 0 sessionpl 144 56 0 47 1 0 1 1 0 8 0 pgrppl 48 271 0 254 1 0 1 1 0 8 0 ucredpl 104 4972 0 4958 1 0 1 1 0 8 0 zombiepl 144 4448 0 4446 2 1 1 1 0 8 0 processpl 1248 3933 0 3880 5 0 5 5 0 8 0 procpl 664 9589 0 9531 9 2 7 7 0 8 1 sosppl 168 22 0 22 7 7 0 1 0 8 0 sockpl 752 7283 0 7251 83 73 10 18 0 8 5 mcl64k 65536 31 0 0 4 1 3 4 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 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 43 0 0 5 0 5 5 0 8 0 mtagpl 96 222 0 0 6 0 6 6 0 8 0 mbufpl 256 1380 0 0 81 0 81 81 0 8 0 bufpl 280 34334 0 28191 440 0 440 440 0 8 0 anonpl 32 20376 0 0 165 0 165 165 0 246 0 amapchunkpl 152 114861 0 114312 78 50 28 37 0 158 2 amappl16 200 11948 0 11859 108 91 17 40 0 8 0 amappl15 192 11 0 11 3 3 0 1 0 8 0 amappl14 184 176 0 164 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 5000 0 4971 3 1 2 2 0 8 0 amappl11 160 53 0 39 1 0 1 1 0 8 0 amappl10 152 9 0 9 2 2 0 1 0 8 0 amappl9 144 252 0 251 2 1 1 1 0 8 0 amappl8 136 23 0 19 1 0 1 1 0 8 0 amappl7 128 170 0 157 1 0 1 1 0 8 0 amappl6 120 465 0 461 1 0 1 1 0 8 0 amappl5 112 238 0 228 1 0 1 1 0 8 0 amappl4 104 352 0 331 1 0 1 1 0 8 0 amappl3 96 23940 0 23839 5 1 4 4 0 8 0 amappl2 88 1159 0 1093 2 0 2 2 0 8 0 amappl1 80 25798 0 25201 18 2 16 16 0 8 0 amappl 88 31998 0 31841 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 2 0 2 2 2 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 257 0 257 5 5 0 1 0 8 0 dma64 64 11 0 11 5 5 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 98 0 8 2 0 2 2 0 8 0 uaddrrnd 24 3906 0 3877 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3906 0 3877 1 0 1 1 0 8 0 vmmpekpl 168 29281 0 29222 3 0 3 3 0 8 0 vmmpepl 168 250170 0 248161 173 65 108 129 0 357 0 vmsppl 488 3905 0 3877 6 1 5 5 0 8 0 rwobjpl 80 69048 0 62038 159 8 151 156 0 8 0 pdppl 4096 7820 0 7754 164 94 70 82 0 8 4 pvpl 32 29215 0 0 237 1 236 236 0 265 0 pmappl 256 3905 0 3877 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 465 0 149 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8378eff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff83891ab0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a268740,ffff800000069c00) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_const_cmp4(ffffffff83801830,ffffffff83801830) at __sanitizer_cov_trace_const_cmp4+0x4f sys/dev/kcov.c:231 msleep_nsec(ffffffff83801868,ffffffff83801830,4,ffffffff83386fc2,ffffffffffffffff) at msleep_nsec+0x19b sys/kern/kern_synch.c:202 reaper(ffff8000ffffc008) at reaper+0x13b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: 2 ddb{0}> trace x86_ipi_db(ffffffff8378eff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff83891ab0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a268740,ffff800000069c00) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83891ab0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_const_cmp4(ffffffff83801830,ffffffff83801830) at __sanitizer_cov_trace_const_cmp4+0x4f sys/dev/kcov.c:231 msleep_nsec(ffffffff83801868,ffffffff83801830,4,ffffffff83386fc2,ffffffffffffffff) at msleep_nsec+0x19b sys/kern/kern_synch.c:202 reaper(ffff8000ffffc008) at reaper+0x13b sys/kern/kern_exit.c:477 end trace frame: 0x0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734ab61f4030, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734ab61f4030, count: -1