panic: mutex 0xfffffd8062aa0660 not held in mtx_leave Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8062aa0660) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8062aa0578,fffffd8062aa0660,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8062aa0548,fffffd80754ebea8,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd8062aa0548,ffff80004004d020,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd8062aa0548,ffff80004004d020,21000,3,7,5002,5f1f9dac6291c223,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6018,ffff80004004d190,ffff80004004d0e0) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff80004004d190) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80004004d190) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a734f799e20, count: 5 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: mutex 0xfffffd8062aa0660 not held in mtx_leave ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8062aa0660) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8062aa0578,fffffd8062aa0660,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8062aa0548,fffffd80754ebea8,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd8062aa0548,ffff80004004d020,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd8062aa0548,ffff80004004d020,21000,3,7,5002,5f1f9dac6291c223,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6018,ffff80004004d190,ffff80004004d0e0) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff80004004d190) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80004004d190) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a734f799e20, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80004004cc00 rbx 0xffffffff834aedbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff8000ffff6018 rax 0xffffffff834adff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x25a24dfc01fe7aff r11 0x4f3b5bc90f3fdcd8 r12 0xffffffff834aebc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff816a99e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80004004cbf0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=260935 pid=77223 tcnt=2 stat=sleep flags process=10 proc=20 runpri=50, usrpri=50, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff6cc0,0xffff8000ffff6a48 process=0xffff8000351cc4a8 user=0xffff800040048000, vmspace=0xfffffd8062aa0548 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *77223 260935 14928 32767 3 0x30 syz-executor 77223 203422 14928 32767 3 0x4000090 fsleep syz-executor 46461 113211 63226 32767 3 0x90 nanoslp syz-executor 46461 119702 63226 32767 3 0x4000090 kqread syz-executor 46461 389263 63226 32767 3 0x4000090 fsleep syz-executor 46461 333198 63226 32767 3 0x4000090 fsleep syz-executor 62262 398767 44988 0 3 0x2 clonelk ifconfig 18364 387956 23482 0 3 0x2 clonelk ifconfig 72188 349631 85965 0 3 0x2 smrbar ifconfig 85965 91934 4335 0 3 0x10008a sigsusp sh 44988 491380 93562 0 3 0x10008a sigsusp sh 4335 277974 67942 0 3 0x80 wait syz-executor 23482 354753 20364 0 3 0x10008a sigsusp sh 76056 258563 38260 0 3 0 clonelk syz-executor 63226 208492 23377 32767 3 0x90 nanoslp syz-executor 42996 30844 8418 0 3 0x2 clonelk ifconfig 8418 216030 94360 0 3 0x10008a sigsusp sh 94360 115055 85070 0 3 0x80 wait syz-executor 22810 160740 453 0 3 0x2 clonelk ifconfig 453 421873 46345 0 3 0x10008a sigsusp sh 46345 407362 87868 0 3 0x80 wait syz-executor 93562 248647 46913 0 3 0x80 wait syz-executor 20364 41656 91164 0 3 0x80 wait syz-executor 14928 513560 89100 32767 3 0x90 nanoslp syz-executor 23377 191379 1090 0 3 0x82 wait syz-executor 91164 213537 1090 0 3 0x82 wait syz-executor 38260 165106 1090 0 3 0x82 wait syz-executor 67942 397945 1090 0 3 0x82 wait syz-executor 46913 519037 1090 0 3 0x82 wait syz-executor 85070 58435 1090 0 3 0x82 wait syz-executor 87868 423938 1090 0 3 0x82 wait syz-executor 89100 203615 1090 0 3 0x82 wait syz-executor 3881 399015 56150 0 3 0x100082 sbwait arp 56150 209950 8491 0 3 0x10008a sigsusp sh 8491 330206 1 0 3 0x80 wait syz-executor 52321 140499 0 0 3 0x14200 bored sosplice 1090 435358 40276 0 3 0x82 kqread syz-executor 40276 490968 97644 0 3 0x10008a sigsusp ksh 97644 506642 66695 0 3 0x98 kqread sshd-session 66695 300258 32261 0 3 0x92 kqread sshd-session 66396 437087 1 0 3 0x100083 ttyin getty 32261 283130 1 0 3 0x88 kqread sshd 78909 374420 41146 73 3 0x1100010 biowait syslogd 41146 190857 1 0 3 0x100082 sbwait syslogd 18388 17579 1 0 3 0x100080 kqread resolvd 96635 41275 45101 77 3 0x100092 kqread dhcpleased 12344 85821 45101 77 3 0x100092 kqread dhcpleased 45101 72033 1 0 3 0x80 kqread dhcpleased 95714 63458 0 0 3 0x14200 bored smr 7822 377051 0 0 3 0x14200 pgzero zerothread 47933 57738 0 0 3 0x14200 aiodoned aiodoned 96791 239257 0 0 3 0x14200 syncer update 58868 504785 0 0 3 0x14200 cleaner cleaner 24225 471431 0 0 3 0x14200 reaper reaper 14192 241888 0 0 3 0x14200 pgdaemon pagedaemon 87921 252275 0 0 3 0x14200 bored viomb 6349 117957 0 0 3 0x40014200 acpi0 acpi0 78220 141280 0 0 7 0x40014200 idle1 33411 190503 0 0 3 0x14200 bored softnet3 64350 204167 0 0 3 0x14200 bored softnet2 62619 490591 0 0 3 0x14200 bored softnet1 68276 316968 0 0 3 0x14200 bored softnet0 7845 227464 0 0 3 0x14200 bored systqmp 98093 394074 0 0 3 0x14200 bored systq 55926 308179 0 0 3 0x14200 tmoslp softclockmp 3576 23 0 0 3 0x40014200 tmoslp softclock 14952 342611 0 0 3 0x40014200 idle0 1 427102 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &map->flags_lock r = 0 (0xfffffd8062aa06a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x6b sys/uvm/uvm_map.c:5244 #4 uvm_mapanon+0x292 #5 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 #6 sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 #7 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 77223 (syz-executor) thread 0xffff8000ffff6a38 (203422) exclusive rwlock amaplk r = 0 (0xfffffd806815f4a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1602 #4 uvm_map_pageable_wire+0x40f sys/uvm/uvm_map.c:2127 #5 sys_mlock+0x23d sys/uvm/uvm_mmap.c:837 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd8062aa0640) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1602 #5 uvm_map_pageable_wire+0x40f sys/uvm/uvm_map.c:2127 #6 sys_mlock+0x23d sys/uvm/uvm_mmap.c:837 #7 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a2200) #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+0x21e sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x142 sys/uvm/uvm_map.c:5257 #6 uvm_map_pageable+0x187 sys/uvm/uvm_map.c:2216 #7 sys_mlock+0x23d sys/uvm/uvm_mmap.c:837 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 72188 (ifconfig) thread 0xffff8000ffff7968 (349631) exclusive rwlock clonelk r = 0 (0xffffffff834288f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 if_clone_destroy+0x67 #3 ifioctl+0x5c5 #4 sys_ioctl+0x67c #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 Process 78909 (syslogd) thread 0xffff8000ffffdbe8 (374420) exclusive rrwlock inode r = 0 (0xfffffd806e2c9b40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 11045K 11059K 166960K 11634 0 pcb 17 16K 18K 166960K 21 0 rtable 168 4K 7K 166960K 3796 0 pf 25 16K 16K 166960K 260 0 ifaddr 30 6K 8K 166960K 493 0 ifgroup 38 1K 2K 166960K 503 0 sysctl 4 1K 1K 166960K 4 0 counters 58 35K 36K 166960K 288 0 ioctlops 0 0K 2K 166960K 233 0 iov 0 0K 16K 166960K 186 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1469 92K 92K 166960K 3736 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 48 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 86 0 dirhash 15 2K 3K 166960K 75 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 37 141K 169K 166960K 4178 0 sigio 0 0K 0K 166960K 295 0 proc 93 140K 176K 166960K 3848 0 subproc 169 10K 13K 166960K 2067 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 708 0 in_multi 66 4K 7K 166960K 1413 0 ether_multi 1 0K 0K 166960K 20 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 2411 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 266 114K 140K 166960K 32806 0 UVM aobj 123 7K 7K 166960K 129 0 pinsyscall 59 118K 142K 166960K 8177 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 214 0 NDP 12 0K 2K 166960K 358 0 temp 95 6825K 6890K 166960K 30003 0 kqueue 14 22K 33K 166960K 491 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 495 0 491 2 1 1 2 0 8 0 rtentry 112 1360 0 1283 9 5 4 4 0 8 0 unpcb 144 2845 0 2826 24 23 1 10 0 8 0 syncache 336 58 0 58 13 12 1 1 0 8 1 tcpqe 32 27 0 27 11 10 1 1 0 8 1 tcpcb 808 1798 0 1782 33 27 6 16 0 8 3 arp 120 242 0 230 1 0 1 1 0 8 0 ipq 40 21 0 19 1 0 1 1 0 8 0 ipqe 40 319 0 317 1 0 1 1 0 8 0 inpcb 336 4869 0 4844 49 44 5 19 0 8 1 ip6q 72 3 0 3 2 2 0 1 0 8 0 ip6af 40 6 0 6 2 2 0 1 0 8 0 nd6 136 387 0 372 2 1 1 2 0 8 0 kcovpl 48 159 0 146 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 5485 0 5162 81 52 29 30 0 8 7 art_table 32 5486 0 5162 5 1 4 4 0 8 0 art_node 16 1359 0 1289 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 7 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 83 0 73 1 0 1 1 0 8 0 shmpl 112 126 0 6 4 0 4 4 0 8 0 dirhash 1024 60 0 40 3 0 3 3 0 8 0 dino2pl 256 5210 0 3394 114 0 114 114 0 8 0 ffsino 272 5210 0 3394 123 1 122 122 0 8 0 nchpl 144 8418 0 6519 71 0 71 71 0 8 0 uvmvnodes 80 7286 0 0 149 0 149 149 0 8 0 vnodes 216 7286 0 0 405 0 405 405 0 8 0 namei 1024 40279 0 40279 21 19 2 2 0 8 2 percpumem 16 158 0 115 1 0 1 1 0 8 0 kstatmem 264 246 0 230 2 0 2 2 0 8 0 scxspl 216 73605 0 73604 25 24 1 8 1 8 0 plimitpl 152 1089 0 1059 2 0 2 2 0 8 0 sigapl 424 4170 0 4102 16 7 9 9 0 8 0 futexpl 64 32535 0 32532 12 11 1 1 0 8 0 knotepl 120 663 0 0 18 0 18 18 0 8 0 kqueuepl 216 901 0 890 13 12 1 5 0 8 0 pipepl 320 853 0 815 9 4 5 6 0 8 0 fdescpl 496 4151 0 4102 13 5 8 8 0 8 1 filepl 152 24141 0 23817 30 15 15 21 0 8 0 lockfpl 104 639 0 637 1 0 1 1 0 8 0 lockfspl 48 220 0 218 1 0 1 1 0 8 0 sessionpl 144 161 0 140 2 0 2 2 0 8 0 pgrppl 48 359 0 330 1 0 1 1 0 8 0 ucredpl 104 4320 0 4303 1 0 1 1 0 8 0 zombiepl 144 4106 0 4102 1 0 1 1 0 8 0 processpl 1160 4170 0 4102 6 0 6 6 0 8 0 procpl 648 7864 0 7792 7 0 7 7 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 33 0 32 9 8 1 1 0 8 0 sockpl 664 8306 0 8258 71 64 7 24 0 8 2 mcl64k 65536 29 0 0 4 1 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 166 0 0 18 1 17 18 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 95 0 0 6 0 6 6 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 770 0 0 44 0 44 44 0 8 0 bufpl 280 12332 0 4673 548 0 548 548 0 8 0 anonpl 24 634942 0 630625 103 37 66 82 0 185 12 amapchunkpl 152 104980 0 104439 64 27 37 39 0 158 11 amappl16 200 13415 0 13404 138 124 14 27 0 8 12 amappl15 192 14 0 14 2 2 0 1 0 8 0 amappl14 184 374 0 363 1 0 1 1 0 8 0 amappl13 176 15 0 15 3 3 0 1 0 8 0 amappl12 168 6618 0 6574 4 1 3 3 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 16 0 15 1 0 1 1 0 8 0 amappl9 144 145 0 145 1 1 0 1 0 8 0 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 354 0 342 1 0 1 1 0 8 0 amappl6 120 1281 0 1267 1 0 1 1 0 8 0 amappl5 112 601 0 586 1 0 1 1 0 8 0 amappl4 104 727 0 709 1 0 1 1 0 8 0 amappl3 96 20528 0 20417 6 2 4 5 0 8 0 amappl2 88 2457 0 2380 9 7 2 3 0 8 0 amappl1 80 31652 0 31046 22 5 17 19 0 8 0 amappl 88 31358 0 31155 6 0 6 6 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 72 128 0 6 3 0 3 3 0 8 0 uaddrrnd 24 4151 0 4102 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4151 0 4102 1 0 1 1 0 8 0 vmmpekpl 168 36482 0 36408 4 0 4 4 0 8 0 vmmpepl 168 263824 0 261647 168 60 108 128 0 357 8 vmsppl 448 4150 0 4102 11 4 7 7 0 8 0 rwobjpl 56 82853 0 74412 134 11 123 123 0 8 3 pdppl 4096 8309 0 8204 451 332 119 123 0 8 14 pvpl 32 33818 0 0 270 0 270 270 0 265 0 pmappl 248 4150 0 4102 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 977 0 495 14 0 14 14 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8062aa0660) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8062aa0578,fffffd8062aa0660,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8062aa0548,fffffd80754ebea8,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd8062aa0548,ffff80004004d020,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd8062aa0548,ffff80004004d020,21000,3,7,5002,5f1f9dac6291c223,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6018,ffff80004004d190,ffff80004004d0e0) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff80004004d190) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80004004d190) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a734f799e20, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5