panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *165233 89961 32767 0x10 0x4000000 1 syz-executor.5 151707 29935 0 0x14000 0x40000200 0 softclock db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8293248c) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807c095030,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807c095030,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a182298,ffff80003254bfc0,ffff80003254c010) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80003254c0c0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003254c0c0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19f9bab81c0, 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(ffffffff8293248c) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807c095030,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807c095030,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a182298,ffff80003254bfc0,ffff80003254c010) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80003254c0c0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003254c0c0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19f9bab81c0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003254bd90 rbx 0xffff800029cfcca7 rdx 0 rcx 0xffff80002a182298 rax 0xffff800029cfbff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1f8d3671cff52699 r11 0x5d0e2777eaf0ae77 r12 0xffff800029cfcaa8 r13 0 r14 0 r15 0x1 rip 0xffffffff81a277fc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80003254bd80 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) tid=165233 pid=89961 tcnt=7 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=80, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a181000,0xffff80002bc9b810 process=0xffff8000fffef9d0 user=0xffff800032547000, vmspace=0xfffffd807c095030 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 71138 422427 6402 32767 2 0x10 syz-executor.7 75251 26448 76025 32767 2 0x10 syz-executor.2 75251 317658 76025 32767 2 0x4000010 syz-executor.2 70679 72756 26083 32767 2 0x10 syz-executor.1 89961 4382 50704 32767 2 0x10 syz-executor.5 89961 13490 50704 32767 3 0x4000010 vmmaplk syz-executor.5 *89961 165233 50704 32767 7 0x4000010 syz-executor.5 89961 397990 50704 32767 3 0x4000090 fsleep syz-executor.5 89961 269873 50704 32767 2 0x4000010 syz-executor.5 89961 337217 50704 32767 2 0x4000010 syz-executor.5 89961 498490 50704 32767 2 0x4000010 syz-executor.5 57161 240025 51948 32767 2 0x10 syz-executor.6 57161 44590 51948 32767 3 0x4000090 lockf syz-executor.6 57161 400958 51948 32767 3 0x4000090 lockf syz-executor.6 76025 485163 19212 32767 3 0x90 nanoslp syz-executor.2 19212 361061 53168 0 3 0x82 wait syz-executor.2 50704 137803 19178 32767 2 0x490 syz-executor.5 19178 135168 53168 0 3 0x82 wait syz-executor.5 44183 422105 64111 32767 2 0x10 syz-executor.3 64111 121633 53168 0 3 0x82 wait syz-executor.3 29277 290078 30038 32767 2 0x490 syz-executor.0 30038 174720 53168 0 3 0x82 wait syz-executor.0 51948 145299 64298 32767 2 0x490 syz-executor.6 64298 269212 53168 0 3 0x82 wait syz-executor.6 33949 400594 11439 32767 2 0x490 syz-executor.4 11439 118073 53168 0 3 0x82 wait syz-executor.4 26083 429076 6901 32767 2 0x490 syz-executor.1 6901 224970 53168 0 3 0x82 wait syz-executor.1 6402 132704 1563 32767 2 0x10 syz-executor.7 1563 36167 53168 0 3 0x82 wait syz-executor.7 94135 399473 0 0 3 0x14200 bored sosplice 53168 390139 16300 0 3 0x2000082 wait syz-fuzzer 53168 481835 16300 0 2 0x6000482 syz-fuzzer 53168 116807 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 189120 16300 0 3 0x6000082 wait syz-fuzzer 53168 1955 16300 0 3 0x6000082 wait syz-fuzzer 53168 273 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 193997 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 469591 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 397024 16300 0 3 0x6000082 kqread syz-fuzzer 53168 146424 16300 0 3 0x6000082 wait syz-fuzzer 53168 454957 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 442047 16300 0 3 0x6000082 wait syz-fuzzer 53168 88394 16300 0 3 0x6000082 wait syz-fuzzer 53168 470645 16300 0 3 0x6000082 wait syz-fuzzer 53168 511189 16300 0 3 0x6000082 thrsleep syz-fuzzer 53168 46565 16300 0 3 0x6000082 wait syz-fuzzer 16300 316242 11868 0 3 0x10008a sigsusp ksh 11868 475031 33565 0 3 0x9a kqread sshd 58387 219614 1 0 3 0x100083 ttyin getty 33565 149715 1 0 3 0x88 kqread sshd 98038 328538 45890 73 3 0x1100090 kqread syslogd 45890 372015 1 0 3 0x100082 netio syslogd 21302 316809 1 0 3 0x100080 kqread resolvd 85294 106730 54660 77 3 0x100092 kqread dhcpleased 1669 58014 54660 77 3 0x100092 kqread dhcpleased 54660 291837 1 0 3 0x80 kqread dhcpleased 7851 385610 0 0 3 0x14200 bored smr 52731 174080 0 0 2 0x14200 zerothread 53667 360730 0 0 3 0x14200 aiodoned aiodoned 54567 24216 0 0 3 0x14200 syncer update 99956 222537 0 0 3 0x14200 cleaner cleaner 51429 165317 0 0 3 0x14200 reaper reaper 46413 113795 0 0 3 0x14200 pgdaemon pagedaemon 87969 341836 0 0 3 0x14200 bored viomb 71042 501847 0 0 3 0x40014200 acpi0 acpi0 17008 279719 0 0 3 0x40014200 idle1 32279 459509 0 0 3 0x14200 bored softnet3 57439 278244 0 0 3 0x14200 bored softnet2 27093 468597 0 0 3 0x14200 bored softnet1 33263 66766 0 0 3 0x14200 bored softnet0 50840 223531 0 0 3 0x14200 bored systqmp 48610 519687 0 0 3 0x14200 bored systq 76943 476015 0 0 3 0x14200 tmoslp softclockmp 29935 151707 0 0 7 0x40014200 softclock 82193 166087 0 0 3 0x40014200 idle0 1 6861 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82d93c88) #0 witness_lock+0x447 #1 sleep_setup+0x92 sys/kern/kern_synch.c:348 #2 rw_enter+0x315 _atomic_cas_ulong machine/atomic.h:72 [inline] #2 rw_enter+0x315 sys/kern/kern_rwlock.c:283 #3 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5369 #4 sys_munmap+0x14e sys/uvm/uvm_mmap.c:526 #5 syscall+0x673 mi_syscall sys/sys/syscall_mi.h:183 [inline] #5 syscall+0x673 sys/arch/amd64/amd64/trap.c:591 #6 Xsyscall+0x128 Process 89961 (syz-executor.5) thread 0xffff80002a182298 (165233) shared rwlock vmmaplk r = 0 (0xfffffd807c095128) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #3 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #4 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #4 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d990c8) #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 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #6 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #7 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #7 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82cda850) #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+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #4 Xsyscall+0x128 Process 44183 (syz-executor.3) thread 0xffff80002bc9c2a0 (422105) exclusive rrwlock inode r = 0 (0xfffffd806abf81a8) #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:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1145 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806abf8e68) #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:3058 #8 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 6413K 6419K 166960K 11425 0 pcb 15 16K 18K 166960K 21 0 rtable 246 7K 7K 166960K 3353 0 pf 29 8K 8K 166960K 111 0 ifaddr 44 15K 16K 166960K 214 0 ifgroup 50 2K 2K 166960K 214 0 sysctl 4 1K 3K 166960K 8 0 counters 64 36K 36K 166960K 146 0 ioctlops 0 0K 2K 166960K 649 0 iov 0 0K 32K 166960K 7983 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 7354 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 503 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 20 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 23 85K 121K 166960K 35848 0 sigio 0 0K 0K 166960K 1079 0 proc 56 78K 103K 166960K 3516 0 subproc 104 6K 6K 166960K 637 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4361 0 in_multi 99 7K 7K 166960K 975 0 ether_multi 1 0K 0K 166960K 56 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 313 1394K 1394K 166960K 313 0 exec 0 0K 1K 166960K 6547 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 456 95K 112K 166960K 355013 0 UVM aobj 131 4K 7K 166960K 147 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 949 0 NDP 11 0K 2K 166960K 150 0 temp 74 6712K 6792K 166960K 88114 0 kqueue 12 18K 30K 166960K 3436 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 2802 0 2799 29 28 1 5 0 8 0 rtentry 112 616 0 500 4 0 4 4 0 8 0 unpcb 144 28220 0 28207 270 264 6 11 0 8 5 syncache 312 495 0 495 63 62 1 1 0 8 1 sackhl 24 3 0 3 3 3 0 1 0 8 0 tcpqe 32 614 0 614 56 55 1 1 0 8 1 tcpcb 808 19951 0 19918 365 358 7 16 0 8 1 arp 120 105 0 87 1 0 1 1 0 8 0 ipq 40 109 0 109 17 17 0 1 0 8 0 ipqe 40 272 0 272 17 17 0 1 0 8 0 inpcb 368 39834 0 39798 472 465 7 27 0 8 1 nd6 136 196 0 166 4 2 2 2 0 8 0 kcovpl 48 49 0 41 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2418 0 1942 36 6 30 31 0 8 0 art_table 32 2419 0 1942 4 0 4 4 0 8 0 art_node 16 615 0 509 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 14 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 144 0 16 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 49199 0 47707 94 0 94 94 0 8 0 ffsino 272 49199 0 47707 100 0 100 100 0 8 0 nchpl 144 97648 0 96007 63 1 62 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 314401 0 314400 6 5 1 2 0 8 0 percpumem 16 87 0 41 1 0 1 1 0 8 0 kstatmem 264 104 0 82 2 0 2 2 0 8 0 scxspl 216 313770 0 313770 132 129 3 8 1 8 3 plimitpl 152 4866 0 4843 55 53 2 2 0 8 1 sigapl 424 36064 0 36009 7 0 7 7 0 8 0 futexpl 64 318192 0 318191 3 2 1 1 0 8 0 knotepl 120 1870 0 0 20 3 17 17 0 8 0 kqueuepl 216 8623 0 8615 133 130 3 8 0 8 2 pipepl 320 7028 0 7000 184 180 4 14 0 8 1 fdescpl 496 36045 0 36011 7 2 5 6 0 8 0 filepl 152 226864 0 226627 365 350 15 26 0 8 4 lockfpl 104 5676 0 5671 4 3 1 2 0 8 0 lockfspl 48 1421 0 1418 1 0 1 1 0 8 0 sessionpl 144 64 0 48 1 0 1 1 0 8 0 pgrppl 48 826 0 810 1 0 1 1 0 8 0 ucredpl 104 33795 0 33777 1 0 1 1 0 8 0 zombiepl 144 36011 0 36009 1 0 1 1 0 8 0 processpl 1136 36064 0 36009 5 0 5 5 0 8 0 procpl 680 100642 0 100563 29 21 8 9 0 8 0 sosppl 168 692 0 692 35 34 1 1 0 8 1 sockpl 488 73486 0 73434 1186 1166 20 41 0 8 8 mcl64k 65536 41 0 0 3 0 3 3 0 8 0 mcl16k 16384 53 0 0 3 0 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 87 0 0 5 2 3 3 0 8 0 mcl4k 4096 155 0 0 5 1 4 4 0 8 0 mcl2k2 2112 48 0 0 2 0 2 2 0 8 0 mcl2k 2048 577 0 0 38 22 16 38 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 3326 0 0 110 0 110 110 0 8 0 bufpl 288 73589 0 67266 452 0 452 452 0 8 0 anonpl 24 3797216 0 3785378 243 143 100 123 0 186 0 amapchunkpl 152 1148962 0 1148107 301 259 42 53 0 158 0 amappl16 200 91973 0 91655 400 370 30 43 0 8 6 amappl15 192 47 0 46 2 1 1 1 0 8 0 amappl14 184 299 0 283 2 1 1 2 0 8 0 amappl13 176 100 0 99 1 0 1 1 0 8 0 amappl12 168 37302 0 37262 5 3 2 3 0 8 0 amappl11 160 66 0 55 1 0 1 1 0 8 0 amappl10 152 87 0 73 1 0 1 1 0 8 0 amappl9 144 469 0 469 61 61 0 1 0 8 0 amappl8 136 1624 0 1386 9 0 9 9 0 8 0 amappl7 128 431 0 404 2 0 2 2 0 8 0 amappl6 120 1272 0 1255 1 0 1 1 0 8 0 amappl5 112 915 0 907 1 0 1 1 0 8 0 amappl4 104 1659 0 1619 3 1 2 2 0 8 0 amappl3 96 219293 0 219201 59 56 3 5 0 8 0 amappl2 88 39831 0 39737 6 3 3 3 0 8 0 amappl1 80 135749 0 135225 22 9 13 22 0 8 0 amappl 88 352588 0 352327 9 1 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 72 146 0 16 3 0 3 3 0 8 0 uaddrrnd 24 36046 0 36012 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 36046 0 36012 1 0 1 1 0 8 0 vmmpekpl 168 283458 0 283394 4 0 4 4 0 8 0 vmmpepl 168 2097111 0 2094553 529 399 130 148 0 357 0 vmsppl 448 36045 0 36012 7 2 5 5 0 8 0 rwobjpl 56 529022 0 521446 125 14 111 114 0 8 0 pdppl 4096 72099 0 72024 884 803 81 93 0 8 6 pvpl 32 45133 0 0 364 0 364 364 0 265 0 pmappl 248 36045 0 36012 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2679 0 1749 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82cc1ff0) 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(ffffffff82d98ec0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d98ec0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82d98ec0,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 msleep(ffffffff82e24820,ffffffff82cecc80,0,ffffffff82852432,0) at msleep+0xea sys/kern/kern_synch.c:249 softclock_thread(ffff80002a10c7e8) at softclock_thread+0xd0 sys/kern/kern_timeout.c:805 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff82cc1ff0) 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(ffffffff82d98ec0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d98ec0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82d98ec0,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 msleep(ffffffff82e24820,ffffffff82cecc80,0,ffffffff82852432,0) at msleep+0xea sys/kern/kern_synch.c:249 softclock_thread(ffff80002a10c7e8) at softclock_thread+0xd0 sys/kern/kern_timeout.c:805 end trace frame: 0x0, count: -9 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(ffffffff8293248c) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807c095030,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807c095030,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a182298,ffff80003254bfc0,ffff80003254c010) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80003254c0c0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003254c0c0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19f9bab81c0, count: 8 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8293248c) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807c095030,20002000,20003000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd807c095030,20002000,20003000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a182298,ffff80003254bfc0,ffff80003254c010) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80003254c0c0) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80003254c0c0) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19f9bab81c0, count: -7