panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 58589 76187 0 0x8000000 0 1 syz-executor.0 *321765 94607 0 0x8000000 0x4000000 0 syz-executor.6 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828ef8e0) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 intr_handler(ffff80002d70d410,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e57350) at mtx_enter_try+0x103 mtx_enter(ffffffff82e57350) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e57350,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,411ef000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a269308,ffff80002d72a2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1245 vm_create(ffff800000e84000,ffff80002d72a2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e84000,1,ffff80002d72a2c8) at vmmioctl+0x2de end trace frame: 0xffff80002d70d8d0, count: 0 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: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828ef8e0) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 intr_handler(ffff80002d70d410,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e57350) at mtx_enter_try+0x103 mtx_enter(ffffffff82e57350) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e57350,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,411ef000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a269308,ffff80002d72a2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1245 vm_create(ffff800000e84000,ffff80002d72a2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e84000,1,ffff80002d72a2c8) at vmmioctl+0x2de VOP_IOCTL(fffffd806e171d88,c2585601,ffff800000e84000,1,fffffd807f7d38f0,ffff80002d72a2c8) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060872690,c2585601,ffff800000e84000,ffff80002d72a2c8) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002d72a2c8,ffff80002d70dbd0,ffff80002d70db20) at sys_ioctl+0x4a9 syscall(ffff80002d70dbd0) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002d70dbd0) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x20bfeab0130, count: -19 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002d70d200 rbx 0xffffffff82cafd77 cpu_info_full_primary+0x2d77 rdx 0xffff800000e095c0 rcx 0xffff80002d72a2c8 rax 0xffffffff82caeff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdd85cdea634ef117 r11 0x6a5d7f72291f3799 r12 0xffffffff82cafb78 cpu_info_full_primary+0x2b78 r13 0 r14 0 r15 0x1 rip 0xffffffff814eda4c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002d70d1f0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.6) tid=321765 pid=94607 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=80, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002d72b748,0xffff80002d72a568 process=0xffff80002a292c78 user=0xffff80002d708000, vmspace=0xfffffd806a9cedd0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65487 452915 96833 0 2 0x8000000 syz-executor.3 65487 30749 96833 0 3 0xc000080 fsleep syz-executor.3 76187 58589 15768 0 7 0x8000000 syz-executor.0 76187 39203 15768 0 2 0xc000000 syz-executor.0 27703 489189 87909 0 2 0x8000000 syz-executor.1 94607 187652 5978 0 2 0x8000000 syz-executor.6 *94607 321765 5978 0 7 0xc000000 syz-executor.6 1290 209671 53358 0 2 0x8000000 syz-executor.5 1290 329064 53358 0 3 0xc000080 rest syz-executor.5 1290 495820 53358 0 2 0xc000000 syz-executor.5 5115 360107 96485 0 2 0x8000000 syz-executor.2 78856 202707 3438 0 2 0x8000000 syz-executor.4 78856 315153 3438 0 3 0xc000080 fsleep syz-executor.4 3438 59743 36125 0 3 0x8000082 nanoslp syz-executor.4 18360 222921 0 0 3 0x14200 bored sosplice 96485 452346 36125 0 2 0x8000002 syz-executor.2 96833 431133 36125 0 3 0x8000082 nanoslp syz-executor.3 5978 131594 36125 0 3 0x8000082 nanoslp syz-executor.6 15768 172697 36125 0 3 0x8000082 nanoslp syz-executor.0 8986 509498 36125 0 3 0x8000082 nanoslp syz-executor.7 53358 363171 36125 0 3 0x8000082 nanoslp syz-executor.5 87909 163240 36125 0 3 0x8000082 nanoslp syz-executor.1 36125 57207 4455 0 3 0x1a000082 wait syz-fuzzer 36125 380924 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 154339 4455 0 3 0x1e000082 wait syz-fuzzer 36125 481210 4455 0 3 0x1e000082 wait syz-fuzzer 36125 334362 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 398654 4455 0 3 0x1e000082 wait syz-fuzzer 36125 361107 4455 0 3 0x1e000082 wait syz-fuzzer 36125 309246 4455 0 3 0x1e000082 wait syz-fuzzer 36125 133851 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 269435 4455 0 3 0x1e000082 wait syz-fuzzer 36125 3058 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 114079 4455 0 3 0x1e000082 wait syz-fuzzer 36125 223544 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 67943 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 407144 4455 0 3 0x1e000082 thrsleep syz-fuzzer 36125 316390 4455 0 3 0x1e000082 kqread syz-fuzzer 4455 376988 17473 0 3 0x810008a sigsusp ksh 17473 490516 85394 0 3 0x1800009a kqread sshd 69999 473996 1 0 3 0x18100083 ttyin getty 85394 154633 1 0 3 0x18000088 kqread sshd 792 89996 92897 73 3 0x19100010 ffs_fsync syslogd 92897 273801 1 0 3 0x18100082 sbwait syslogd 98000 148700 1 0 3 0x18100080 kqread resolvd 57829 170056 80078 77 3 0x18100092 kqread dhcpleased 99569 14950 80078 77 3 0x18100092 kqread dhcpleased 80078 210730 1 0 3 0x18000080 kqread dhcpleased 74262 54491 0 0 3 0x14200 bored smr 29422 45275 0 0 2 0x14200 zerothread 59350 38889 0 0 3 0x14200 aiodoned aiodoned 99103 97947 0 0 3 0x14200 syncer update 33677 299613 0 0 3 0x14200 cleaner cleaner 9087 92442 0 0 3 0x14200 reaper reaper 1866 320416 0 0 3 0x14200 pgdaemon pagedaemon 38360 285612 0 0 3 0x14200 bored viomb 75023 448489 0 0 3 0x40014200 acpi0 acpi0 61966 391733 0 0 3 0x40014200 idle1 78256 138477 0 0 3 0x14200 bored softnet3 43533 487216 0 0 3 0x14200 bored softnet2 13082 1655 0 0 3 0x14200 bored softnet1 83604 374505 0 0 3 0x14200 bored softnet0 55144 243639 0 0 3 0x14200 bored systqmp 32972 158909 0 0 3 0x14200 bored systq 75647 437762 0 0 3 0x14200 tmoslp softclockmp 24717 132076 0 0 3 0x40014200 tmoslp softclock 81669 251058 0 0 3 0x40014200 idle0 1 113353 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex vmsppl r = 0 (0xffffffff82e57360) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 pool_get+0xc4 sys/kern/subr_pool.c:579 #4 uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 #5 vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1245 #6 vm_create+0x13e sys/dev/vmm/vmm.c:388 #7 vmmioctl+0x2de #8 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 #10 sys_ioctl+0x4a9 #11 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #11 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 Process 792 (syslogd) thread 0xffff8000ffffd720 (89996) exclusive rrwlock inode r = 0 (0xfffffd806e74b3d0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904 #6 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10182 6473K 6609K 166960K 11400 0 pcb 17 12K 12K 166960K 45 0 rtable 237 7K 7K 166960K 406 0 pf 29 8K 10K 166960K 53 0 ifaddr 44 15K 15K 166960K 56 0 ifgroup 50 2K 2K 166960K 71 0 counters 64 36K 36K 166960K 74 0 ioctlops 1 1K 4K 166960K 1486 0 iov 0 0K 16K 166960K 18 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1377 87K 87K 166960K 1478 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 14 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 19 69K 81K 166960K 286 0 sigio 0 0K 0K 166960K 2 0 proc 61 91K 103K 166960K 523 0 subproc 117 7K 7K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 99 7K 7K 166960K 113 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 400 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 317 86K 95K 166960K 4804 0 UVM aobj 13 2K 2K 166960K 14 0 pinsyscall 39 78K 100K 166960K 1446 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 13 0K 1K 166960K 34 0 temp 51 6809K 6873K 166960K 11923 0 kqueue 12 18K 24K 166960K 48 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 52 0 49 1 0 1 1 0 8 0 rtentry 112 127 0 17 4 0 4 4 0 8 0 unpcb 144 154 0 138 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 43 0 38 1 0 1 1 0 8 0 arp 120 21 0 3 1 0 1 1 0 8 0 inpcb 384 206 0 196 3 1 2 3 0 8 1 nd6 136 27 0 3 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 9 0 0 1 0 1 1 0 8 0 ppxss 1168 1 0 1 1 1 0 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 41 0 15 1 0 1 1 0 8 0 pfstkey 128 41 0 15 1 0 1 1 0 8 0 pfstate 376 41 0 15 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 501 0 46 29 0 29 29 0 8 0 art_table 32 502 0 46 4 0 4 4 0 8 0 art_node 16 124 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 11 0 1 1 0 1 1 0 8 0 shmpl 112 11 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1826 0 304 96 0 96 96 0 8 0 ffsino 272 1826 0 304 102 0 102 102 0 8 0 nchpl 144 2315 0 570 67 0 67 67 0 8 0 uvmvnodes 80 1995 0 0 41 0 41 41 0 8 0 vnodes 216 1995 0 0 111 0 111 111 0 8 0 namei 1024 7980 0 7980 3 2 1 2 0 8 1 percpumem 16 51 0 5 1 0 1 1 0 8 0 vmpool 696 2 0 1 1 0 1 1 0 8 0 kstatmem 264 32 0 10 2 0 2 2 0 8 0 scxspl 216 12634 0 12632 10 6 4 8 1 8 3 plimitpl 152 72 0 55 1 0 1 1 0 8 0 sigapl 424 590 0 541 6 0 6 6 0 8 0 futexpl 64 2474 0 2472 1 0 1 1 0 8 0 knotepl 120 346 0 0 11 1 10 11 0 8 0 kqueuepl 216 66 0 58 1 0 1 1 0 8 0 pipepl 320 164 0 136 3 0 3 3 0 8 0 fdescpl 496 571 0 541 6 2 4 5 0 8 0 filepl 152 2750 0 2480 12 1 11 11 0 8 0 lockfpl 104 45 0 41 1 0 1 1 0 8 0 lockfspl 48 19 0 15 1 0 1 1 0 8 0 sessionpl 144 24 0 7 1 0 1 1 0 8 0 pgrppl 48 27 0 10 1 0 1 1 0 8 0 ucredpl 104 303 0 290 1 0 1 1 0 8 0 zombiepl 144 543 0 541 1 0 1 1 0 8 0 processpl 1136 590 0 541 4 0 4 4 0 8 0 procpl 656 789 0 719 8 1 7 7 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 664 416 0 387 6 2 4 5 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 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 380 0 0 48 0 48 48 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 412 0 0 26 0 26 26 0 8 0 bufpl 280 5769 0 186 399 0 399 399 0 8 0 anonpl 24 220841 0 214700 66 1 65 65 0 186 26 amapchunkpl 152 16023 0 15277 41 2 39 39 0 158 8 amappl16 200 5723 0 5573 9 0 9 9 0 8 0 amappl15 192 31 0 30 1 0 1 1 0 8 0 amappl14 184 226 0 213 2 1 1 2 0 8 0 amappl13 176 14 0 14 1 1 0 1 0 8 0 amappl12 168 1230 0 1197 2 0 2 2 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 43 0 34 1 0 1 1 0 8 0 amappl9 144 205 0 204 1 0 1 1 0 8 0 amappl8 136 116 0 85 2 0 2 2 0 8 0 amappl7 128 62 0 51 1 0 1 1 0 8 0 amappl6 120 331 0 319 2 1 1 2 0 8 0 amappl5 112 170 0 158 1 0 1 1 0 8 0 amappl4 104 547 0 512 2 0 2 2 0 8 0 amappl3 96 3562 0 3466 3 0 3 3 0 8 0 amappl2 88 961 0 889 4 2 2 4 0 8 0 amappl1 80 10041 0 9542 22 11 11 22 0 8 0 amappl 88 4250 0 4032 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 572 0 542 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 572 0 542 1 0 1 1 0 8 0 vmmpekpl 168 9248 0 9188 3 0 3 3 0 8 0 vmmpepl 168 57652 0 55655 118 12 106 118 0 357 17 vmsppl 440 571 0 542 4 0 4 4 0 8 0 rwobjpl 56 23564 0 20434 51 6 45 48 0 8 0 pdppl 4096 1151 0 1084 99 30 69 73 0 8 2 pvpl 32 49198 0 0 399 2 397 397 0 265 0 pmappl 248 571 0 542 4 1 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 416 0 36 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828ef8e0) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82de1df0,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82de1be8) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 intr_handler(ffff80002d70d410,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e57350) at mtx_enter_try+0x103 mtx_enter(ffffffff82e57350) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e57350,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,411ef000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a269308,ffff80002d72a2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1245 vm_create(ffff800000e84000,ffff80002d72a2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e84000,1,ffff80002d72a2c8) at vmmioctl+0x2de VOP_IOCTL(fffffd806e171d88,c2585601,ffff800000e84000,1,fffffd807f7d38f0,ffff80002d72a2c8) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060872690,c2585601,ffff800000e84000,ffff80002d72a2c8) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002d72a2c8,ffff80002d70dbd0,ffff80002d70db20) at sys_ioctl+0x4a9 syscall(ffff80002d70dbd0) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002d70dbd0) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x20bfeab0130, count: -19 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) 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 end of kernel end trace frame: 0x70d9c125f850, count: 12 ddb{1}> trace x86_ipi_db(ffff800029cebff0) 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 end of kernel end trace frame: 0x70d9c125f850, count: -3