panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *279148 38606 32767 0x10 0x4000000 1 syz-executor 422544 82380 0 0x14000 0x200 0 zerothread db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8009302000,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8009302000,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 sys_sysctl(ffff80003278ca90,ffff80002ef6ab50,ffff80002ef6aaa0) at sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 syscall(ffff80002ef6ab50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ef6ab50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x839f9b6e950, count: 7 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_unwire_locked: address not in map ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8009302000,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8009302000,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 sys_sysctl(ffff80003278ca90,ffff80002ef6ab50,ffff80002ef6aaa0) at sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 syscall(ffff80002ef6ab50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ef6ab50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x839f9b6e950, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ef6a800 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff80003278ca90 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb9821e5563853828 r11 0x3a914fe7cf4f3a16 r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff82216ee5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ef6a7f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=279148 pid=38606 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003278c580,0xffff8000329a8f68 process=0xffff8000329a4db8 user=0xffff80002ef65000, vmspace=0xfffffd8009302000 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38606 356202 99911 32767 2 0x10 syz-executor 38606 77897 99911 32767 3 0x4000090 fsleep syz-executor *38606 279148 99911 32767 7 0x4000010 syz-executor 38606 523724 99911 32767 3 0x4000010 vmmaplk syz-executor 52725 423352 54889 32767 3 0x90 nanoslp syz-executor 52725 345833 54889 32767 3 0x4000090 kqread syz-executor 52725 271690 54889 32767 3 0x4000090 fsleep syz-executor 99911 66923 8103 32767 3 0x90 nanoslp syz-executor 8103 447440 847 0 3 0x82 wait syz-executor 78924 227098 31056 32767 3 0x90 nanoslp syz-executor 31056 414294 847 0 3 0x82 wait syz-executor 96928 183336 2707 32767 3 0x10 biowait syz-executor 2707 106083 847 0 3 0x82 wait syz-executor 68129 506847 63578 32767 3 0x90 wait syz-executor 63578 371250 847 0 3 0x82 wait syz-executor 67596 1579 43245 32767 3 0x90 wait syz-executor 43245 458847 847 0 3 0x82 wait syz-executor 9467 199400 79029 32767 3 0x90 wait syz-executor 79029 221184 847 0 3 0x82 wait syz-executor 28431 4816 21466 32767 3 0x90 wait syz-executor 21466 53339 847 0 3 0x82 wait syz-executor 54889 465942 43804 32767 3 0x90 nanoslp syz-executor 43804 245052 847 0 3 0x82 wait syz-executor 99644 381120 57480 0 3 0x100082 sbwait arp 57480 310927 56961 0 3 0x10008a sigsusp sh 56961 233797 1 0 3 0x80 wait syz-executor 3022 262903 0 0 3 0x14200 bored sosplice 847 272717 507 0 2 0x2 syz-executor 507 197927 16952 0 3 0x10008a sigsusp ksh 16952 121971 84283 0 3 0x98 kqread sshd-session 84283 13825 19370 0 3 0x92 kqread sshd-session 73906 224733 1 0 3 0x100083 ttyin getty 19370 239994 1 0 3 0x88 kqread sshd 37811 483312 36612 73 3 0x1100090 kqread syslogd 36612 304315 1 0 3 0x100082 sbwait syslogd 34856 214096 1 0 3 0x100080 kqread resolvd 96607 190487 18201 77 3 0x100092 kqread dhcpleased 15814 29840 18201 77 3 0x100092 kqread dhcpleased 18201 319675 1 0 3 0x80 kqread dhcpleased 33821 30464 0 0 3 0x14200 bored smr 82380 422544 0 0 7 0x14200 zerothread 24055 302528 0 0 3 0x14200 aiodoned aiodoned 38563 25253 0 0 3 0x14200 syncer update 40796 422599 0 0 3 0x14200 cleaner cleaner 96372 231262 0 0 3 0x14200 reaper reaper 35518 380045 0 0 3 0x14200 pgdaemon pagedaemon 5109 492097 0 0 3 0x14200 bored viomb 1550 255112 0 0 3 0x40014200 acpi0 acpi0 70153 419375 0 0 3 0x40014200 idle1 65137 154395 0 0 3 0x14200 bored softnet3 773 23014 0 0 3 0x14200 bored softnet2 90483 158003 0 0 3 0x14200 bored softnet1 32822 106459 0 0 3 0x14200 bored softnet0 54480 431899 0 0 3 0x14200 bored systqmp 4975 213367 0 0 3 0x14200 bored systq 32707 415195 0 0 3 0x14200 tmoslp softclockmp 68889 99063 0 0 3 0x40014200 tmoslp softclock 92946 273174 0 0 3 0x40014200 idle0 1 499277 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 38606 (syz-executor) thread 0xffff80003278ca90 (279148) shared rwlock vmmaplk r = 0 (0xfffffd80093020f0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff834fe560) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff834bd090) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 sys_sysctl+0x395 sys/kern/kern_sysctl.c:287 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Process 96928 (syz-executor) thread 0xffff80003278d228 (183336) exclusive rrwlock inode r = 0 (0xfffffd80744a9928) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806490e098) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10237 14126K 14131K 166960K 13315 0 pcb 17 20K 22K 166960K 25 0 rtable 238 6K 7K 166960K 22604 0 pf 31 16K 16K 166960K 1377 0 ifaddr 42 15K 17K 166960K 2718 0 ifgroup 50 2K 2K 166960K 2728 0 sysctl 4 1K 5K 166960K 88 0 counters 64 36K 36K 166960K 1396 0 ioctlops 0 0K 2K 166960K 1404 0 iov 0 0K 40K 166960K 3990 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1474 93K 93K 166960K 17937 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 651 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1499 0 dirhash 21 4K 5K 166960K 1035 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 28 105K 169K 166960K 39315 0 sigio 0 0K 0K 166960K 918 0 proc 58 79K 176K 166960K 22494 0 subproc 117 7K 13K 166960K 10322 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 8217 0 in_multi 99 7K 8K 166960K 8832 0 ether_multi 1 0K 0K 166960K 229 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 361 1606K 1606K 166960K 361 0 exec 0 0K 1K 166960K 16088 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 306 85K 140K 166960K 333966 0 UVM aobj 131 4K 7K 166960K 143 0 pinsyscall 50 100K 134K 166960K 60036 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 2728 0 NDP 11 0K 2K 166960K 2023 0 temp 78 6824K 6952K 166960K 305540 0 kqueue 14 22K 37K 166960K 5858 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 6318 0 6314 53 52 1 5 0 8 0 rtentry 112 7800 0 7688 14 10 4 4 0 8 0 unpcb 144 37604 0 37584 156 151 5 11 0 8 4 syncache 336 589 0 589 40 39 1 1 0 8 1 tcpqe 32 207 0 207 50 49 1 1 0 8 1 tcpcb 808 23503 0 23489 272 260 12 19 0 8 8 arp 120 1371 0 1352 1 0 1 1 0 8 0 ipq 40 177 0 173 4 3 1 1 0 8 0 ipqe 40 3226 0 3222 4 3 1 1 0 8 0 inpcb 336 55883 0 55862 302 291 11 19 0 8 6 ip6q 72 8 0 8 6 6 0 1 0 8 0 ip6af 40 16 0 16 6 6 0 1 0 8 0 nd6 136 2368 0 2343 6 5 1 2 0 8 0 kcovpl 48 794 0 785 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 31680 0 31216 215 184 31 32 0 8 1 art_table 32 31681 0 31216 9 5 4 5 0 8 0 art_node 16 7799 0 7697 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 16 2 1 1 1 0 8 0 semapl 112 1497 0 1487 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 714 0 683 14 9 5 5 0 8 1 dino2pl 256 50067 0 46175 246 2 244 244 0 8 0 ffsino 272 50067 0 46175 262 2 260 260 0 8 0 nchpl 144 90983 0 87796 119 0 119 119 0 8 0 uvmvnodes 80 10956 0 0 224 0 224 224 0 8 0 vnodes 216 10956 0 0 609 0 609 609 0 8 0 namei 1024 412833 0 412833 64 63 1 2 0 8 1 percpumem 16 712 0 666 1 0 1 1 0 8 0 kstatmem 264 1354 0 1332 2 0 2 2 0 8 0 scxspl 216 436944 0 436943 104 101 3 8 1 8 2 plimitpl 152 12527 0 12502 2 0 2 2 0 8 0 sigapl 424 38502 0 38443 27 19 8 9 0 8 0 futexpl 64 440800 0 440798 30 29 1 1 0 8 0 knotepl 120 1794 0 0 25 2 23 25 0 8 0 kqueuepl 216 12822 0 12808 99 98 1 7 0 8 0 pipepl 320 7643 0 7612 84 80 4 9 0 8 0 fdescpl 496 38483 0 38443 26 20 6 8 0 8 0 filepl 152 279899 0 279549 172 157 15 25 0 8 1 lockfpl 104 10599 0 10597 12 11 1 4 0 8 0 lockfspl 48 2814 0 2812 1 0 1 1 0 8 0 sessionpl 144 1172 0 1155 1 0 1 1 0 8 0 pgrppl 48 2811 0 2786 1 0 1 1 0 8 0 ucredpl 104 54897 0 54878 1 0 1 1 0 8 0 zombiepl 144 38448 0 38443 1 0 1 1 0 8 0 processpl 1160 38502 0 38443 7 2 5 6 0 8 0 procpl 648 87938 0 87874 15 8 7 7 0 8 0 srpgc 96 27 0 27 11 11 0 1 0 8 0 sosppl 168 396 0 395 27 26 1 1 0 8 0 sockpl 664 100597 0 100552 453 440 13 27 0 8 6 mcl64k 65536 50 0 0 4 0 4 4 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 805 0 0 31 11 20 30 0 8 0 mtagpl 96 11 0 0 1 0 1 1 0 8 0 mbufpl 256 4188 0 0 207 0 207 207 0 8 0 bufpl 280 66153 0 55196 783 0 783 783 0 8 0 anonpl 24 4795912 0 4780952 382 249 133 141 0 185 19 amapchunkpl 152 1073721 0 1072807 310 259 51 57 0 158 10 amappl16 200 106088 0 105617 551 513 38 47 0 8 8 amappl15 192 22 0 22 9 9 0 1 0 8 0 amappl14 184 2423 0 2412 1 0 1 1 0 8 0 amappl13 176 65 0 65 40 40 0 1 0 8 0 amappl12 168 50292 0 50251 17 14 3 3 0 8 0 amappl11 160 68 0 58 1 0 1 1 0 8 0 amappl10 152 13 0 12 2 1 1 1 0 8 0 amappl9 144 146 0 145 3 2 1 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 1914 0 1902 1 0 1 1 0 8 0 amappl6 120 6822 0 6819 1 0 1 1 0 8 0 amappl5 112 3285 0 3275 1 0 1 1 0 8 0 amappl4 104 4323 0 4306 1 0 1 1 0 8 0 amappl3 96 221329 0 221181 6 1 5 5 0 8 0 amappl2 88 15658 0 15589 8 6 2 3 0 8 0 amappl1 80 288845 0 288278 33 16 17 18 0 8 0 amappl 88 323406 0 323159 9 2 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 38483 0 38443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 38483 0 38443 1 0 1 1 0 8 0 vmmpekpl 168 356251 0 356184 10 6 4 5 0 8 0 vmmpepl 168 2534962 0 2532336 439 301 138 145 0 357 4 vmsppl 440 38482 0 38443 17 12 5 7 0 8 0 rwobjpl 56 680315 0 667818 223 40 183 184 0 8 0 pdppl 4096 76973 0 76886 1702 1611 91 119 0 8 4 pvpl 32 44330 0 0 358 1 357 357 0 265 0 pmappl 248 38482 0 38443 17 13 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3368 0 2474 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83451ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff834fe358) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834fe358) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a003cf0,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 msleep(ffffffff835ea114,ffffffff835ea298,7f,ffffffff830293ea,0) at msleep+0x3e uvm_pagezero_thread(ffff800029fd8290) at uvm_pagezero_thread+0xe9 sys/uvm/uvm_pmemrange.c:2194 end trace frame: 0x0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff83451ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff834fe358) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834fe358) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a003cf0,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 msleep(ffffffff835ea114,ffffffff835ea298,7f,ffffffff830293ea,0) at msleep+0x3e uvm_pagezero_thread(ffff800029fd8290) at uvm_pagezero_thread+0xe9 sys/uvm/uvm_pmemrange.c:2194 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8009302000,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8009302000,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 sys_sysctl(ffff80003278ca90,ffff80002ef6ab50,ffff80002ef6aaa0) at sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 syscall(ffff80002ef6ab50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ef6ab50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x839f9b6e950, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bb062) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8009302000,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8009302000,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 sysctl_vsunlock(20000140,0) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:204 sys_sysctl(ffff80003278ca90,ffff80002ef6ab50,ffff80002ef6aaa0) at sys_sysctl+0x45d sys/kern/kern_sysctl.c:297 syscall(ffff80002ef6ab50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ef6ab50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x839f9b6e950, count: -8