panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *430837 30482 32767 0x10 0x4000000 1 syz-executor 249377 4475 0 0x14000 0x200 0 softnet0 db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834094d4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c50e924,2,4000000001c0,ffff80003c50e958,0,37,633dad5fc3846a42) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff94a0,ffff80003c50ea90,ffff80003c50e9e0) at sys_sysctl+0x425 syscall(ffff80003c50ea90) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c50ea90) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbcfcaf1ae0, 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{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:438 panic(ffffffff834094d4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c50e924,2,4000000001c0,ffff80003c50e958,0,37,633dad5fc3846a42) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff94a0,ffff80003c50ea90,ffff80003c50e9e0) at sys_sysctl+0x425 syscall(ffff80003c50ea90) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c50ea90) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbcfcaf1ae0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c50e530 rbx 0xffff800029a9cdc7 rdx 0xffff800001447940 rcx 0xffff8000ffff94a0 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdb1a127dfe3476a r11 0x6716587815c932d8 r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8184e095 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c50e520 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=430837 pid=30482 tcnt=6 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=77, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffef4a8,0xffff8000ffff8f90 process=0xffff8000ffff2048 user=0xffff80003c509000, vmspace=0xfffffd8068357918 estcpu=27, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37803 65473 51140 32767 2 0x10 syz-executor 437 452188 32131 32767 2 0x10 syz-executor 53239 298684 38222 32767 2 0x10 syz-executor 53239 260473 38222 32767 3 0x4000090 lockf syz-executor 53239 341891 38222 32767 3 0x4000090 lockf syz-executor 30482 151568 49605 32767 3 0x90 nanoslp syz-executor 30482 401331 49605 32767 3 0x4000090 fsleep syz-executor 30482 184550 49605 32767 2 0x4000010 syz-executor 30482 249346 49605 32767 2 0x4000010 syz-executor *30482 430837 49605 32767 7 0x4000010 syz-executor 30482 114547 49605 32767 3 0x4000090 fsleep syz-executor 17075 3208 40430 32767 3 0x90 nanoslp syz-executor 17075 127131 40430 32767 3 0x4000090 kqsel syz-executor 17075 203686 40430 32767 3 0x4000090 fsleep syz-executor 17075 235223 40430 32767 3 0x4000090 fsleep syz-executor 84632 281197 0 0 3 0x14200 bored sosplice 95914 209729 24316 0 3 0x100082 sbwait ndp 24316 275444 64232 0 3 0x10008a sigsusp sh 64232 299749 42883 0 3 0x80 wait syz-executor 49605 496874 76446 32767 3 0x90 nanoslp syz-executor 51140 62209 48566 32767 3 0x90 nanoslp syz-executor 38222 438262 81327 32767 3 0x90 nanoslp syz-executor 40430 479695 94319 32767 3 0x90 nanoslp syz-executor 29402 250612 2500 32767 2 0x10 syz-executor 49643 109667 52578 32767 3 0x10 biowait syz-executor 32131 56388 28935 32767 3 0x90 nanoslp syz-executor 76446 321021 23366 0 3 0x82 wait syz-executor 2500 310318 23366 0 3 0x82 wait syz-executor 81327 171105 23366 0 3 0x82 wait syz-executor 28935 390163 23366 0 3 0x82 wait syz-executor 94319 269569 23366 0 3 0x82 wait syz-executor 52578 123862 23366 0 3 0x82 wait syz-executor 48566 312997 23366 0 3 0x82 wait syz-executor 42883 204770 23366 0 3 0x82 wait syz-executor 23366 284016 66345 0 3 0x82 kqread syz-executor 66345 81202 82800 0 3 0x10008a sigsusp ksh 82800 39315 4320 0 3 0x98 kqread sshd-session 4320 23014 70940 0 3 0x92 kqread sshd-session 23445 472297 1 0 3 0x100083 ttyin getty 70940 496261 1 0 3 0x88 kqread sshd 62931 128431 87586 73 3 0x1100090 kqread syslogd 87586 241534 1 0 3 0x100082 sbwait syslogd 17151 310260 1 0 3 0x100080 kqread resolvd 76435 63114 53234 77 3 0x100092 kqread dhcpleased 91703 3916 53234 77 3 0x100092 kqread dhcpleased 53234 213263 1 0 3 0x80 kqread dhcpleased 1975 193879 0 0 3 0x14200 bored smr 49175 223710 0 0 2 0x14200 zerothread 87833 100724 0 0 3 0x14200 aiodoned aiodoned 16009 176813 0 0 3 0x14200 syncer update 7160 297927 0 0 3 0x14200 cleaner cleaner 17491 321120 0 0 3 0x14200 reaper reaper 1789 187380 0 0 3 0x14200 pgdaemon pagedaemon 72069 413813 0 0 3 0x14200 bored viomb 81312 385332 0 0 3 0x40014200 acpi0 acpi0 44205 72536 0 0 3 0x40014200 idle1 6870 14587 0 0 3 0x14200 bored softnet3 64054 293910 0 0 3 0x14200 bored softnet2 88176 197146 0 0 3 0x14200 bored softnet1 4475 249377 0 0 7 0x14200 softnet0 17775 268759 0 0 3 0x14200 bored systqmp 41782 429970 0 0 3 0x14200 bored systq 71745 72230 0 0 3 0x14200 tmoslp softclockmp 783 97679 0 0 3 0x40014200 tmoslp softclock 7136 4853 0 0 3 0x40014200 idle0 1 242394 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 30482 (syz-executor) thread 0xffff8000ffff94a0 (430837) shared rwlock vmmaplk r = 0 (0xfffffd8068357a18) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #3 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #3 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839e42c0) #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+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 #5 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #7 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #8 vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 #9 sysctl_proc_cwd+0x2b2 sys/kern/kern_sysctl.c:2352 #10 kern_sysctl_dirs+0x2ef sys/kern/kern_sysctl.c:430 #11 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #12 sys_sysctl+0x425 #13 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8388b6a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 49643 (syz-executor) thread 0xffff8000ffffa538 (109667) exclusive rrwlock inode r = 0 (0xfffffd805fc5d770) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 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:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805fc5d658) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b 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:1866 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 10954K 10965K 166960K 11266 0 pcb 17 12K 12K 166960K 17 0 rtable 236 6K 6K 166960K 355 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 34 0 iov 0 0K 8K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1353 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 129K 166960K 223 0 sigio 0 0K 0K 166960K 3 0 proc 58 79K 127K 166960K 484 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 15 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 362 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 232 73K 82K 166960K 3519 0 UVM aobj 4 2K 2K 166960K 6 0 pinsyscall 47 94K 112K 166960K 1255 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 11 0K 2K 166960K 27 0 temp 41 8679K 8747K 166960K 4061 0 kqueue 14 22K 26K 166960K 38 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 43 0 39 1 0 1 1 0 8 0 rtentry 160 112 0 1 5 0 5 5 0 8 0 unpcb 144 97 0 74 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 42 0 37 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 376 147 0 139 2 0 2 2 0 8 0 nd6 136 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 456 0 0 29 0 29 29 0 8 0 art_table 32 457 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 4 0 1 1 0 1 1 0 8 0 shmpl 112 3 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1670 0 166 95 0 95 95 0 8 0 ffsino 280 1670 0 166 108 0 108 108 0 8 0 nchpl 144 1970 0 294 63 0 63 63 0 8 0 uvmvnodes 80 1751 0 0 36 0 36 36 0 8 0 vnodes 216 1751 0 0 98 0 98 98 0 8 0 namei 1024 5799 0 5799 2 0 2 2 0 8 2 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6769 0 6768 9 1 8 8 1 8 7 plimitpl 152 111 0 87 2 0 2 2 0 8 1 sigapl 424 506 0 450 8 0 8 8 0 8 1 futexpl 64 1287 0 1283 1 0 1 1 0 8 0 knotepl 120 303 0 0 10 0 10 10 0 8 0 kqueuepl 216 41 0 31 1 0 1 1 0 8 0 pipepl 328 113 0 86 3 0 3 3 0 8 0 fdescpl 504 487 0 450 7 1 6 6 0 8 0 filepl 152 1806 0 1588 10 0 10 10 0 8 1 lockfpl 104 20 0 14 1 0 1 1 0 8 0 lockfspl 48 11 0 7 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 31 0 7 1 0 1 1 0 8 0 ucredpl 104 177 0 159 1 0 1 1 0 8 0 zombiepl 144 450 0 450 1 0 1 1 0 8 1 processpl 1176 506 0 450 5 0 5 5 0 8 0 procpl 656 642 0 576 7 0 7 7 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 688 288 0 253 5 0 5 5 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 256 0 0 16 0 16 16 0 8 0 bufpl 280 2463 0 123 168 0 168 168 0 8 0 anonpl 24 108104 0 104912 45 0 45 45 0 184 7 amapchunkpl 152 10826 0 10326 27 1 26 26 0 158 3 amappl16 200 2157 0 2138 14 1 13 13 0 8 6 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 104 0 92 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1097 0 1061 2 0 2 2 0 8 0 amappl11 160 61 0 51 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 109 0 98 1 0 1 1 0 8 0 amappl6 120 175 0 171 1 0 1 1 0 8 0 amappl5 112 140 0 134 1 0 1 1 0 8 0 amappl4 104 296 0 280 1 0 1 1 0 8 0 amappl3 96 1737 0 1622 4 0 4 4 0 8 0 amappl2 88 612 0 556 2 0 2 2 0 8 0 amappl1 80 7674 0 7111 13 0 13 13 0 8 0 amappl 88 3160 0 2982 5 0 5 5 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 5 0 2 1 0 1 1 0 8 0 uaddrrnd 24 487 0 450 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 487 0 450 1 0 1 1 0 8 0 vmmpekpl 168 5438 0 5408 2 0 2 2 0 8 0 vmmpepl 168 36385 0 34431 100 0 100 100 0 357 3 vmsppl 456 486 0 450 7 1 6 6 0 8 0 rwobjpl 64 14911 0 12291 47 0 47 47 0 8 0 pdppl 4096 981 0 900 113 28 85 99 0 8 4 pvpl 32 13282 0 0 108 0 108 108 0 265 0 pmappl 248 486 0 450 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 292 0 31 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83837ff0) 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(ffffffff839e40b8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839e40b8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a2d30c0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f witness_checkorder(ffff80000002c028,9,0) at witness_checkorder+0x16e sys/kern/subr_witness.c:772 mtx_enter(ffff80000002c018) at mtx_enter+0x47 sys/kern/kern_lock.c:238 msleep(ffff80000002c000,ffff80000002c018,20,ffffffff83430a68,0) at msleep+0x2cf sys/kern/kern_synch.c:237 taskq_next_work(ffff80000002c000,ffff80002a2d3340) at taskq_next_work+0x8e sys/kern/kern_task.c:399 taskq_thread(ffff80000002c000) at taskq_thread+0x1d5 sys/kern/kern_task.c:439 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83837ff0) 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(ffffffff839e40b8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839e40b8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a2d30c0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f witness_checkorder(ffff80000002c028,9,0) at witness_checkorder+0x16e sys/kern/subr_witness.c:772 mtx_enter(ffff80000002c018) at mtx_enter+0x47 sys/kern/kern_lock.c:238 msleep(ffff80000002c000,ffff80000002c018,20,ffffffff83430a68,0) at msleep+0x2cf sys/kern/kern_synch.c:237 taskq_next_work(ffff80000002c000,ffff80002a2d3340) at taskq_next_work+0x8e sys/kern/kern_task.c:399 taskq_thread(ffff80000002c000) at taskq_thread+0x1d5 sys/kern/kern_task.c:439 end trace frame: 0x0, count: -11 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:438 panic(ffffffff834094d4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c50e924,2,4000000001c0,ffff80003c50e958,0,37,633dad5fc3846a42) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff94a0,ffff80003c50ea90,ffff80003c50e9e0) at sys_sysctl+0x425 syscall(ffff80003c50ea90) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c50ea90) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbcfcaf1ae0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834094d4) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd8068357918,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(4e,ffff80003c50e928,1,4000000001c0,ffff80003c50e958,0,43a9db2c6fb0afd4,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c50e924,2,4000000001c0,ffff80003c50e958,0,37,633dad5fc3846a42) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff94a0,ffff80003c50ea90,ffff80003c50e9e0) at sys_sysctl+0x425 syscall(ffff80003c50ea90) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c50ea90) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbcfcaf1ae0, count: -9