panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *350093 42607 32767 0x10 0x4000000 1K syz-executor.4 224035 42607 32767 0x10 0x4000000 0 syz-executor.4 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82960617) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a17e800,ffff80002bc86af0,ffff80002bc86a40) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002bc86af0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc86af0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8192cda70b0, count: 8 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82960617) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a17e800,ffff80002bc86af0,ffff80002bc86a40) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002bc86af0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc86af0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8192cda70b0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002bc867f0 rbx 0xffff800029ceccb7 rdx 0 rcx 0xffff80002a17e800 rax 0xffff800029cebff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfe17b0d818fe06d0 r11 0xe2d518297ba3851b r12 0xffff800029cecab8 r13 0 r14 0 r15 0x1 rip 0xffffffff823de41c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002bc867e0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.4) tid=350093 pid=42607 tcnt=5 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=72, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a188000,0xffff80002a17dac8 process=0xffff8000ffff91c8 user=0xffff80002bc81000, vmspace=0xfffffd806b6641d0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77122 107870 65372 32767 2 0x10 syz-executor.5 96946 412610 9406 32767 2 0x10 syz-executor.3 96946 468085 9406 32767 3 0x4000090 fsleep syz-executor.3 21018 493314 23971 32767 2 0x10 syz-executor.0 21018 286775 23971 32767 3 0x4000090 sysctllk syz-executor.0 21018 148553 23971 32767 3 0x4000090 fsleep syz-executor.0 92607 375103 75052 32767 2 0x10 syz-executor.7 92607 414935 75052 32767 3 0x4000090 fsleep syz-executor.7 42607 302585 75089 32767 2 0x10 syz-executor.4 42607 292881 75089 32767 3 0x4000090 fsleep syz-executor.4 *42607 350093 75089 32767 7 0x4000010 syz-executor.4 42607 2806 75089 32767 3 0x4000090 fsleep syz-executor.4 42607 224035 75089 32767 7 0x4000010 syz-executor.4 59940 433308 47339 32767 3 0x90 nanoslp syz-executor.6 47339 430749 66042 0 3 0x82 wait syz-executor.6 23971 164895 59254 32767 3 0x90 nanoslp syz-executor.0 59254 92470 66042 0 3 0x82 wait syz-executor.0 29833 289058 2187 32767 3 0x10 biowait syz-executor.2 2187 277414 66042 0 3 0x82 wait syz-executor.2 9406 374479 88671 32767 3 0x90 nanoslp syz-executor.3 88671 470159 66042 0 3 0x82 wait syz-executor.3 52181 440286 69153 32767 3 0x90 nanoslp syz-executor.1 69153 14295 66042 0 3 0x82 wait syz-executor.1 75089 364453 7193 32767 3 0x90 nanoslp syz-executor.4 7193 183953 66042 0 3 0x82 wait syz-executor.4 75052 15893 72306 32767 3 0x90 nanoslp syz-executor.7 72306 283895 66042 0 3 0x82 wait syz-executor.7 65372 458057 61786 32767 3 0x90 nanoslp syz-executor.5 61786 388172 66042 0 3 0x82 wait syz-executor.5 87793 444957 0 0 3 0x14200 bored sosplice 66042 34677 94043 0 3 0x2000082 thrsleep syz-fuzzer 66042 321513 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 194842 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 497328 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 177135 94043 0 3 0x6000082 wait syz-fuzzer 66042 485112 94043 0 3 0x6000082 wait syz-fuzzer 66042 343892 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 113059 94043 0 3 0x6000082 wait syz-fuzzer 66042 165436 94043 0 3 0x6000082 wait syz-fuzzer 66042 328825 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 2910 94043 0 3 0x6000082 thrsleep syz-fuzzer 66042 399301 94043 0 3 0x6000082 wait syz-fuzzer 66042 116108 94043 0 3 0x6000082 kqread syz-fuzzer 66042 105940 94043 0 3 0x6000082 wait syz-fuzzer 66042 359994 94043 0 3 0x6000082 wait syz-fuzzer 66042 325758 94043 0 3 0x6000082 wait syz-fuzzer 94043 335671 11875 0 3 0x10008a sigsusp ksh 11875 223893 34819 0 3 0x9a kqread sshd 4922 501665 1 0 3 0x100083 ttyin getty 34819 433973 1 0 3 0x88 kqread sshd 85776 456334 3084 73 3 0x1100090 kqread syslogd 3084 26125 1 0 3 0x100082 netio syslogd 53971 289007 1 0 3 0x100080 kqread resolvd 77559 444611 27342 77 3 0x100092 kqread dhcpleased 92853 328384 27342 77 3 0x100092 kqread dhcpleased 27342 6823 1 0 3 0x80 kqread dhcpleased 2481 233163 0 0 3 0x14200 bored smr 51571 200541 0 0 2 0x14200 zerothread 36872 254026 0 0 3 0x14200 aiodoned aiodoned 49908 348218 0 0 3 0x14200 syncer update 38562 69231 0 0 3 0x14200 cleaner cleaner 44699 448683 0 0 3 0x14200 reaper reaper 79711 217501 0 0 3 0x14200 pgdaemon pagedaemon 19331 258124 0 0 3 0x14200 bored viomb 488 193808 0 0 3 0x40014200 acpi0 acpi0 56382 462280 0 0 3 0x40014200 idle1 98885 357172 0 0 3 0x14200 bored softnet3 2316 502045 0 0 3 0x14200 bored softnet2 82910 175265 0 0 3 0x14200 bored softnet1 40739 168828 0 0 3 0x14200 bored softnet0 11823 403099 0 0 3 0x14200 bored systqmp 13890 181835 0 0 3 0x14200 bored systq 88770 169746 0 0 3 0x14200 tmoslp softclockmp 81452 151878 0 0 3 0x40014200 tmoslp softclock 47979 19199 0 0 3 0x40014200 idle0 1 461585 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 42607 (syz-executor.4) thread 0xffff80002a17e800 (350093) shared rwlock vmmaplk r = 0 (0xfffffd806b6642c8) #0 witness_lock+0x447 #1 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #2 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dd5c28) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 rw_enter+0x341 sys/kern/kern_rwlock.c:285 #5 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #6 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #7 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #8 vfs_getcwd_common+0xa4 sys/kern/vfs_getcwd.c:287 #9 sysctl_proc_cwd+0x1f6 sys/kern/kern_sysctl.c:2101 #10 kern_sysctl+0x10b sys/kern/kern_sysctl.c:457 #11 sys_sysctl+0x219 sys/kern/kern_sysctl.c:254 #12 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82d055d0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 sys_sysctl+0x1c3 sys/kern/kern_sysctl.c:238 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 29833 (syz-executor.2) thread 0xffff80002a2242a0 (289058) exclusive rrwlock inode r = 0 (0xfffffd806ba83c50) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8067ee9f88) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 6413K 6419K 166960K 11458 0 pcb 15 20K 22K 166960K 23 0 rtable 238 6K 7K 166960K 3831 0 pf 29 8K 8K 166960K 137 0 ifaddr 44 16K 16K 166960K 268 0 ifgroup 50 2K 2K 166960K 266 0 sysctl 4 1K 2K 166960K 8 0 counters 64 36K 36K 166960K 172 0 ioctlops 0 0K 2K 166960K 397 0 iov 0 0K 33K 166960K 3877 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 6781 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 441 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 7155 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 109K 166960K 30162 0 sigio 0 0K 0K 166960K 1717 0 proc 56 78K 115K 166960K 3621 0 subproc 104 6K 6K 166960K 806 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 3 0K 0K 166960K 3198 0 in_multi 99 7K 7K 166960K 1137 0 ether_multi 1 0K 0K 166960K 55 0 mrt 2 0K 0K 166960K 3 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 4924 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 487 93K 110K 166960K 298501 0 UVM aobj 131 4K 4K 166960K 139 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 849 0 NDP 11 0K 2K 166960K 189 0 temp 74 6772K 6900K 166960K 76915 0 kqueue 12 18K 28K 166960K 2875 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 1843 0 1840 19 18 1 4 0 8 0 rtentry 112 753 0 641 4 0 4 4 0 8 0 unpcb 144 24415 0 24396 211 207 4 10 0 8 3 syncache 320 429 0 429 53 53 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 612 0 612 49 49 0 1 0 8 0 tcpcb 808 14187 0 14165 285 281 4 18 0 8 0 arp 120 132 0 114 1 0 1 1 0 8 0 ipq 40 51 0 51 15 15 0 1 0 8 0 ipqe 40 357 0 357 15 15 0 1 0 8 0 inpcb 376 30049 0 30022 440 430 10 29 0 8 5 nd6 136 228 0 202 3 1 2 2 0 8 0 kcovpl 48 62 0 54 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2957 0 2491 33 3 30 30 0 8 0 art_table 32 2958 0 2491 4 0 4 4 0 8 0 art_node 16 752 0 650 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 1 0 1 1 0 8 0 semapl 112 7153 0 7143 1 0 1 1 0 8 0 shmpl 112 136 0 8 5 1 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 40182 0 38683 94 0 94 94 0 8 0 ffsino 272 40182 0 38683 101 0 101 101 0 8 0 nchpl 144 79978 0 78330 63 0 63 63 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 263267 0 263266 4 3 1 2 0 8 0 percpumem 16 100 0 54 1 0 1 1 0 8 0 kstatmem 264 130 0 108 2 0 2 2 0 8 0 scxspl 216 255457 0 255456 113 112 1 8 1 8 0 plimitpl 152 4999 0 4975 15 13 2 2 0 8 0 sigapl 424 30348 0 30293 7 0 7 7 0 8 0 futexpl 64 245681 0 245676 1 0 1 1 0 8 0 knotepl 120 1471 0 0 19 2 17 17 0 8 0 kqueuepl 216 7867 0 7858 143 140 3 6 0 8 2 pipepl 320 6541 0 6513 168 164 4 13 0 8 1 fdescpl 496 30329 0 30294 7 2 5 6 0 8 0 filepl 152 189547 0 189303 264 251 13 24 0 8 1 lockfpl 104 4493 0 4491 2 1 1 2 0 8 0 lockfspl 48 1381 0 1379 1 0 1 1 0 8 0 sessionpl 144 77 0 61 1 0 1 1 0 8 0 pgrppl 48 745 0 729 1 0 1 1 0 8 0 ucredpl 104 30210 0 30192 1 0 1 1 0 8 0 zombiepl 144 30295 0 30293 1 0 1 1 0 8 0 processpl 1136 30348 0 30293 6 1 5 5 0 8 0 procpl 680 84676 0 84598 18 10 8 9 0 8 0 sosppl 168 512 0 512 26 26 0 1 0 8 0 sockpl 584 58286 0 58237 407 396 11 23 0 8 5 mcl64k 65536 21 0 0 3 1 2 3 0 8 0 mcl16k 16384 32 0 0 4 1 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 42 0 0 3 1 2 2 0 8 0 mcl8k 8192 49 0 0 4 1 3 3 0 8 0 mcl4k 4096 109 0 0 3 0 3 3 0 8 0 mcl2k2 2112 35 0 0 3 1 2 2 0 8 0 mcl2k 2048 703 0 0 35 16 19 32 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 3828 0 0 214 0 214 214 0 8 0 bufpl 280 55227 0 48911 452 0 452 452 0 8 0 anonpl 24 3101885 0 3090053 272 173 99 124 0 186 0 amapchunkpl 152 976625 0 975741 217 179 38 56 0 158 1 amappl16 200 74055 0 73704 454 430 24 44 0 8 0 amappl15 192 27 0 27 3 3 0 1 0 8 0 amappl14 184 330 0 315 2 1 1 2 0 8 0 amappl13 176 55 0 55 12 12 0 1 0 8 0 amappl12 168 31889 0 31841 5 2 3 3 0 8 0 amappl11 160 59 0 49 1 0 1 1 0 8 0 amappl10 152 95 0 79 1 0 1 1 0 8 0 amappl9 144 383 0 383 48 47 1 1 0 8 1 amappl8 136 1531 0 1296 11 2 9 9 0 8 0 amappl7 128 472 0 445 2 0 2 2 0 8 0 amappl6 120 1460 0 1433 1 0 1 1 0 8 0 amappl5 112 691 0 682 1 0 1 1 0 8 0 amappl4 104 1514 0 1462 3 1 2 2 0 8 0 amappl3 96 184193 0 184091 10 6 4 4 0 8 0 amappl2 88 32503 0 32408 4 1 3 3 0 8 0 amappl1 80 116929 0 116394 22 10 12 22 0 8 0 amappl 88 296508 0 296242 8 0 8 8 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 72 138 0 8 3 0 3 3 0 8 0 uaddrrnd 24 30331 0 30296 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 30331 0 30296 1 0 1 1 0 8 0 vmmpekpl 168 220872 0 220800 4 0 4 4 0 8 0 vmmpepl 168 1786163 0 1783487 625 487 138 156 0 357 8 vmsppl 448 30330 0 30296 5 0 5 5 0 8 0 rwobjpl 56 445699 0 438041 131 19 112 115 0 8 0 pdppl 4096 60669 0 60592 939 858 81 87 0 8 4 pvpl 32 44328 0 0 359 1 358 358 0 265 0 pmappl 248 30330 0 30296 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2156 0 1572 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82d1fff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80003598cdb0,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 sys/kern/kern_lock.c:147 end trace frame: 0x0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff82d1fff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80003598cdb0,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dd5a20) at __mp_lock+0x122 sys/kern/kern_lock.c:147 end trace frame: 0x0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82960617) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a17e800,ffff80002bc86af0,ffff80002bc86a40) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002bc86af0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc86af0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8192cda70b0, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82960617) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806b6641d0,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a17e800,ffff80002bc86af0,ffff80002bc86a40) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002bc86af0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc86af0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8192cda70b0, count: -7