Warning: Permanently added '10.128.0.149' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 167060 53028 0 0 0x4000000 0 syz-executor3750094340 * 48049 55266 0 0 0x4000000 1K syz-executor3750094340 db_enter() at db_enter+0x1c panic(ffffffff82847d4b) at panic+0x17b uvm_fault_unwire_locked(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire_locked+0x321 uvm_fault_unwire(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire+0x43 sys_sysctl(ffff800021234850,ffff80002126b7d0,ffff80002126b820) at sys_sysctl+0x239 syscall(ffff80002126b8a0) at syscall+0x5e2 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca0f1a7a320, 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 panic(ffffffff82847d4b) at panic+0x17b uvm_fault_unwire_locked(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire_locked+0x321 uvm_fault_unwire(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire+0x43 sys_sysctl(ffff800021234850,ffff80002126b7d0,ffff80002126b820) at sys_sysctl+0x239 syscall(ffff80002126b8a0) at syscall+0x5e2 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca0f1a7a320, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002126b5a0 rbx 0xffff800020d59b8f rdx 0x3fd rcx 0 rax 0x33 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6feff8e2239fafcc r11 0x8efb86a38fcd078e r12 0xffff800020d59990 r13 0 r14 0 r15 0x1 rip 0xffffffff812ec33c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002126b590 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor3750094340) pid=48049 stat=onproc flags process=0 proc=4000000 pri=36, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800021234598,0xffff800021234b18 process=0xffff8000212a9938 user=0xffff800021266000, vmspace=0xfffffd806d93e020 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64302 238180 88591 0 2 0 syz-executor3750094340 53028 514637 49995 0 2 0 syz-executor3750094340 53028 167060 49995 0 7 0x4000000 syz-executor3750094340 53028 411417 49995 0 2 0x4000000 syz-executor3750094340 23958 150872 50481 0 2 0 syz-executor3750094340 23958 54321 50481 0 2 0x4000000 syz-executor3750094340 23958 368159 50481 0 2 0x4000000 syz-executor3750094340 14395 102100 22026 0 2 0 syz-executor3750094340 14395 391708 22026 0 2 0x4000000 syz-executor3750094340 14395 300130 22026 0 2 0x4000000 syz-executor3750094340 55266 326818 22918 0 2 0 syz-executor3750094340 *55266 48049 22918 0 7 0x4000000 syz-executor3750094340 55266 187309 22918 0 3 0x4000080 fsleep syz-executor3750094340 7706 430277 8924 0 4 0x80c80 syz-executor3750094340 7706 156098 8924 0 2 0x4002800 syz-executor3750094340 7706 364244 8924 0 4 0x4080880 fsleep syz-executor3750094340 35836 514295 58573 0 4 0x80800 syz-executor3750094340 35836 17544 58573 0 2 0x4002800 syz-executor3750094340 35836 478580 58573 0 4 0x4080880 fsleep syz-executor3750094340 56926 63689 40879 0 4 0x80c80 syz-executor3750094340 56926 96494 40879 0 2 0x4002800 syz-executor3750094340 56926 89681 40879 0 4 0x4080880 fsleep syz-executor3750094340 40879 221130 78274 0 3 0x80 nanoslp syz-executor3750094340 8924 41729 78274 0 3 0x80 nanoslp syz-executor3750094340 88591 397101 78274 0 2 0 syz-executor3750094340 22026 175370 78274 0 2 0 syz-executor3750094340 22918 215592 78274 0 3 0x80 nanoslp syz-executor3750094340 50481 192843 78274 0 3 0x80 nanoslp syz-executor3750094340 58573 512783 78274 0 3 0x80 nanoslp syz-executor3750094340 49995 159135 78274 0 3 0x80 nanoslp syz-executor3750094340 78274 38706 16168 0 3 0x82 nanoslp syz-executor3750094340 16168 113695 74748 0 3 0x10008a sigsusp ksh 74748 59490 54393 0 3 0x9a kqread sshd 37561 227730 1 0 3 0x100083 ttyin getty 54393 507433 1 0 3 0x88 kqread sshd 56955 119167 22593 73 3 0x1100090 kqread syslogd 22593 167628 1 0 3 0x100082 netio syslogd 47676 511015 1 0 3 0x100080 kqread resolvd 42306 114154 2674 77 3 0x100092 kqread dhcpleased 63020 352033 2674 77 3 0x100092 kqread dhcpleased 2674 457029 1 0 3 0x80 kqread dhcpleased 25000 506621 0 0 3 0x14200 bored smr 42382 65449 0 0 2 0x14200 zerothread 55812 306121 0 0 3 0x14200 aiodoned aiodoned 53956 316495 0 0 3 0x14200 syncer update 72867 489551 0 0 3 0x14200 cleaner cleaner 83074 305158 0 0 3 0x14200 reaper reaper 68911 132091 0 0 3 0x14200 pgdaemon pagedaemon 80894 286815 0 0 3 0x14200 bored viomb 72654 294417 0 0 3 0x40014200 acpi0 acpi0 38689 250945 0 0 3 0x40014200 idle1 87134 398269 0 0 3 0x14200 bored softnet3 31914 491995 0 0 3 0x14200 bored softnet2 2787 174512 0 0 3 0x14200 bored softnet1 60868 97215 0 0 3 0x14200 bored softnet0 57337 191407 0 0 3 0x14200 bored systqmp 80859 175380 0 0 3 0x14200 bored systq 55394 163458 0 0 3 0x40014200 bored softclock 2200 271283 0 0 3 0x40014200 idle0 1 206471 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 55266 (syz-executor3750094340) thread 0xffff800021234850 (48049) shared rwlock vmmaplk r = 0 (0xfffffd806d93e118) #0 witness_lock+0x447 #1 rw_enter+0x3c8 #2 uvm_fault_unwire+0x35 #3 sys_sysctl+0x239 #4 syscall+0x5e2 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d80d38) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 #2 mi_switch+0x440 #3 sleep_finish+0x184 #4 rw_enter+0x341 #5 uvm_fault_unwire+0x35 #6 sys_sysctl+0x239 #7 syscall+0x5e2 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82b62f60) #0 witness_lock+0x447 #1 rw_enter+0x3c8 #2 sys_sysctl+0x1c3 #3 syscall+0x5e2 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10149 6388K 6419K 78643K 11227 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 104 0 pf 12 6K 6K 78643K 12 0 ifaddr 12 9K 9K 78643K 12 0 ifgroup 17 1K 1K 78643K 17 0 counters 44 33K 33K 78643K 44 0 ioctlops 0 0K 2K 78643K 21 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1174 73K 74K 78643K 1187 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 78K 79K 78643K 246 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 234 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 137 6K 34K 78643K 11918 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 4 5868K 5920K 78643K 2963 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 33 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 2 0 1 0 8 0 tcpqe 32 120 0 120 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 26 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1423 0 37 87 0 87 87 0 8 0 ffsino 272 1423 0 37 93 0 93 93 0 8 0 nchpl 144 1606 0 47 58 0 58 58 0 8 0 uvmvnodes 80 1432 0 0 30 0 30 30 0 8 0 vnodes 216 1432 0 0 80 0 80 80 0 8 0 namei 1024 4637 0 4634 3 1 2 2 0 8 1 percpumem 16 35 0 0 1 0 1 1 0 8 0 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 63918 0 63918 31 29 2 8 0 8 2 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 1399 0 1353 6 0 6 6 0 8 0 futexpl 64 2286 0 2282 1 0 1 1 0 8 0 knotepl 120 46 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 84 0 81 2 1 1 1 0 8 0 fdescpl 496 1382 0 1353 5 1 4 4 0 8 0 filepl 152 1107 0 1054 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 281 0 268 1 0 1 1 0 8 0 zombiepl 144 1353 0 1353 2 1 1 1 0 8 1 processpl 1072 1399 0 1353 4 0 4 4 0 8 0 procpl 696 3561 0 3501 7 1 6 6 0 8 0 sockpl 488 76 0 54 3 0 3 3 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 321 0 0 37 5 32 37 0 8 1 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 356 0 0 19 0 19 19 0 8 0 bufpl 288 31068 0 24874 443 0 443 443 0 8 0 anonpl 24 435169 0 432394 51 13 38 38 0 186 17 amapchunkpl 152 32645 0 32372 15 1 14 14 0 158 2 amappl16 200 15670 0 15632 21 13 8 12 0 8 5 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 96 0 87 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1853 0 1834 1 0 1 1 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 9 0 9 2 2 0 1 0 8 0 amappl9 144 179 0 179 1 1 0 1 0 8 0 amappl8 136 39 0 37 1 0 1 1 0 8 0 amappl7 128 1132 0 1110 1 0 1 1 0 8 0 amappl6 120 142 0 130 1 0 1 1 0 8 0 amappl5 112 81 0 75 1 0 1 1 0 8 0 amappl4 104 412 0 384 1 0 1 1 0 8 0 amappl3 96 7267 0 7212 2 0 2 2 0 8 0 amappl2 88 1537 0 1491 3 1 2 2 0 8 0 amappl1 80 14377 0 13924 15 4 11 11 0 8 0 amappl 88 9490 0 9390 3 0 3 3 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1382 0 1353 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1382 0 1353 1 0 1 1 0 8 0 vmmpekpl 168 14880 0 14856 2 0 2 2 0 8 0 vmmpepl 168 91229 0 89900 76 9 67 67 0 357 7 vmsppl 464 1381 0 1353 5 1 4 4 0 8 0 rwobjpl 56 43684 0 41519 36 2 34 35 0 8 2 pdppl 4096 2772 0 2706 86 20 66 66 0 8 0 pvpl 32 589167 0 583580 93 20 73 73 0 265 22 pmappl 248 1381 0 1353 3 1 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 785 0 28 22 0 22 22 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82bd2ff0) at x86_ipi_db+0x1e x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82d80b30) at __mp_lock+0x122 syscall(ffff8000212e92b0) at syscall+0x5cd Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca04a2de970, count: 9 ddb{0}> trace x86_ipi_db(ffffffff82bd2ff0) at x86_ipi_db+0x1e x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82d80b30) at __mp_lock+0x122 syscall(ffff8000212e92b0) at syscall+0x5cd Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca04a2de970, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c panic(ffffffff82847d4b) at panic+0x17b uvm_fault_unwire_locked(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire_locked+0x321 uvm_fault_unwire(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire+0x43 sys_sysctl(ffff800021234850,ffff80002126b7d0,ffff80002126b820) at sys_sysctl+0x239 syscall(ffff80002126b8a0) at syscall+0x5e2 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca0f1a7a320, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c panic(ffffffff82847d4b) at panic+0x17b uvm_fault_unwire_locked(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire_locked+0x321 uvm_fault_unwire(fffffd806d93e020,20000000,20001000) at uvm_fault_unwire+0x43 sys_sysctl(ffff800021234850,ffff80002126b7d0,ffff80002126b820) at sys_sysctl+0x239 syscall(ffff80002126b8a0) at syscall+0x5e2 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca0f1a7a320, count: -7