ÍeœÐ#Ó`e@ÛCÚ€0|6¦opanic: 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 136145 76858 0 0x8000000 0 1 syz-executor.1 * 11991 12604 0 0x8000000 0x4000000 0 syz-executor.7 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828eb619) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e4baa0) at mtx_enter_try+0x103 mtx_enter(ffffffff82e4baa0) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e4baa0,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,1000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a204da0,ffff80002a22e2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1244 vm_create(ffff800000e72000,ffff80002a22e2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e72000,1,ffff80002a22e2c8) at vmmioctl+0x2de end trace frame: 0xffff800033f55e90, 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(ffffffff828eb619) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e4baa0) at mtx_enter_try+0x103 mtx_enter(ffffffff82e4baa0) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e4baa0,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,1000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a204da0,ffff80002a22e2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1244 vm_create(ffff800000e72000,ffff80002a22e2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e72000,1,ffff80002a22e2c8) at vmmioctl+0x2de VOP_IOCTL(fffffd806e306cb0,c2585601,ffff800000e72000,1,fffffd807f7d38f0,ffff80002a22e2c8) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80682430a0,c2585601,ffff800000e72000,ffff80002a22e2c8) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a22e2c8,ffff800033f56190,ffff800033f560e0) at sys_ioctl+0x4a9 syscall(ffff800033f56190) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff800033f56190) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbdad1fe7ad0, count: -19 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800033f557c0 rbx 0xffffffff82d1dd77 cpu_info_full_primary+0x2d77 rdx 0xffff800000e19100 rcx 0xffff80002a22e2c8 rax 0xffffffff82d1cff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x28fe8571fe48aa47 r11 0x3fd240e62a5262c4 r12 0xffffffff82d1db78 cpu_info_full_primary+0x2b78 r13 0 r14 0 r15 0x1 rip 0xffffffff81dca81c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800033f557b0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) tid=11991 pid=12604 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a22f748,0xffff80002a22f4c8 process=0xffff8000ffff1648 user=0xffff800033f51000, vmspace=0xfffffd806ab1dc18 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 76858 136145 63862 0 7 0x8000000 syz-executor.1 76858 458401 63862 0 2 0xc000000 syz-executor.1 12604 264792 83959 0 2 0x8000000 syz-executor.7 *12604 11991 83959 0 7 0xc000000 syz-executor.7 52592 517075 51171 0 2 0x8000000 syz-executor.0 52592 309689 51171 0 3 0xc000080 fsleep syz-executor.0 92584 48746 39994 0 2 0x8000000 syz-executor.4 92584 73528 39994 0 3 0xc000080 fsleep syz-executor.4 52334 194629 68646 0 2 0x8000000 syz-executor.5 52334 139577 68646 0 3 0xc000080 fsleep syz-executor.5 51171 394053 28737 0 3 0x8000082 nanoslp syz-executor.0 53047 52954 28737 0 3 0x8000082 nanoslp syz-executor.2 87440 314168 28737 0 3 0x8000082 piperd syz-executor.6 86166 419935 28737 0 3 0x8000082 nanoslp syz-executor.3 68646 125642 28737 0 3 0x8000082 nanoslp syz-executor.5 83959 75361 28737 0 3 0x8000082 nanoslp syz-executor.7 63862 12953 28737 0 3 0x8000082 nanoslp syz-executor.1 39994 119745 28737 0 3 0x8000082 nanoslp syz-executor.4 7684 335279 0 0 3 0x14200 bored sosplice 28737 235975 46433 0 3 0x1a000082 thrsleep syz-fuzzer 28737 416916 46433 0 3 0x1e000082 nanoslp syz-fuzzer 28737 166534 46433 0 3 0x1e000082 wait syz-fuzzer 28737 373423 46433 0 3 0x1e000082 wait syz-fuzzer 28737 482673 46433 0 3 0x1e000082 thrsleep syz-fuzzer 28737 139758 46433 0 3 0x1e000082 wait syz-fuzzer 28737 289027 46433 0 3 0x1e000082 thrsleep syz-fuzzer 28737 288110 46433 0 3 0x1e000082 thrsleep syz-fuzzer 28737 502179 46433 0 3 0x1e000082 wait syz-fuzzer 28737 362448 46433 0 3 0x1e000082 wait syz-fuzzer 28737 471734 46433 0 2 0x1e000002 syz-fuzzer 28737 149276 46433 0 3 0x1e000082 thrsleep syz-fuzzer 28737 233255 46433 0 3 0x1e000082 wait syz-fuzzer 28737 322868 46433 0 3 0x1e000082 wait syz-fuzzer 28737 331907 46433 0 3 0x1e000082 wait syz-fuzzer 28737 85420 46433 0 3 0x1e000082 kqread syz-fuzzer 46433 504218 99757 0 3 0x810008a sigsusp ksh 99757 36876 17324 0 3 0x1800009a kqread sshd 84144 411735 1 0 3 0x18100083 ttyin getty 17324 378602 1 0 3 0x18000088 kqread sshd 47889 232583 42607 73 3 0x19100090 kqread syslogd 42607 240527 1 0 3 0x18100082 sbwait syslogd 738 78408 1 0 3 0x18100080 kqread resolvd 1100 33354 66338 77 3 0x18100092 kqread dhcpleased 43509 30636 66338 77 3 0x18100092 kqread dhcpleased 66338 300345 1 0 3 0x18000080 kqread dhcpleased 94009 395877 0 0 3 0x14200 bored smr 63100 79533 0 0 2 0x14200 zerothread 79567 308716 0 0 3 0x14200 aiodoned aiodoned 15043 223298 0 0 3 0x14200 syncer update 44198 145640 0 0 3 0x14200 cleaner cleaner 25007 177079 0 0 3 0x14200 reaper reaper 4386 468543 0 0 3 0x14200 pgdaemon pagedaemon 57426 21301 0 0 3 0x14200 bored viomb 61738 250948 0 0 3 0x40014200 acpi0 acpi0 40781 292344 0 0 3 0x40014200 idle1 70849 395686 0 0 3 0x14200 bored softnet3 35389 190270 0 0 3 0x14200 bored softnet2 85907 471443 0 0 3 0x14200 bored softnet1 34329 140656 0 0 3 0x14200 bored softnet0 31308 280043 0 0 3 0x14200 bored systqmp 23139 230811 0 0 3 0x14200 bored systq 49058 410255 0 0 3 0x14200 tmoslp softclockmp 71790 257950 0 0 3 0x40014200 tmoslp softclock 66798 369159 0 0 3 0x40014200 idle0 1 76278 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 (0xffffffff82e4bab0) #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:1244 #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 76858 (syz-executor.1) thread 0xffff80002a22f748 (136145) exclusive rwlock amaplk r = 0 (0xfffffd806ad8ab78) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 uvm_fault_check+0x401 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806ab1d100) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10192 6425K 6736K 166960K 11978 0 pcb 18 12K 12K 166960K 175 0 rtable 200 7K 8K 166960K 691 0 pf 33 9K 10K 166960K 81 0 ifaddr 41 14K 15K 166960K 97 0 ifgroup 58 2K 2K 166960K 123 0 sysctl 1 1K 1K 166960K 3 0 counters 68 36K 36K 166960K 102 0 ioctlops 1 1K 4K 166960K 1557 0 iov 0 0K 16K 166960K 38 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1376 87K 87K 166960K 2270 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 55 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 182 0 dirhash 12 2K 4K 166960K 156 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 89K 166960K 1343 0 sigio 0 0K 0K 166960K 15 0 proc 58 79K 162K 166960K 805 0 subproc 104 6K 6K 166960K 234 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 372 0 in_multi 94 6K 7K 166960K 281 0 ether_multi 1 0K 0K 166960K 24 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 587 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 280 78K 131K 166960K 13425 0 UVM aobj 56 4K 4K 166960K 67 0 pinsyscall 35 70K 100K 166960K 2744 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 45 0 NDP 13 0K 2K 166960K 66 0 temp 73 6816K 6944K 166960K 24631 0 kqueue 12 18K 32K 166960K 158 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 75 0 72 1 0 1 1 0 8 0 rtentry 112 233 0 142 4 0 4 4 0 8 0 unpcb 144 518 0 502 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 245 0 240 3 2 1 2 0 8 0 arp 120 41 0 31 1 0 1 1 0 8 0 inpcb 384 1050 0 1041 4 2 2 3 0 8 1 nd6 136 59 0 35 1 0 1 1 0 8 0 pkpcb 40 29 0 29 2 2 0 1 0 8 0 kcovpl 48 18 0 10 1 0 1 1 0 8 0 ppxss 1168 3 0 3 2 1 1 1 0 8 1 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 44 0 43 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 99 0 71 1 0 1 1 0 8 0 pfstkey 128 99 0 71 2 1 1 2 0 8 0 pfstate 376 99 0 71 6 3 3 6 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 256 914 0 481 32 3 29 29 0 8 1 art_table 32 915 0 481 4 0 4 4 0 8 0 art_node 16 232 0 151 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 8 1 1 0 1 0 8 0 semapl 112 170 0 160 1 0 1 1 0 8 0 shmpl 112 64 0 11 2 0 2 2 0 8 0 dirhash 1024 113 0 96 4 0 4 4 0 8 1 dino2pl 256 3753 0 2232 96 0 96 96 0 8 0 ffsino 272 3753 0 2232 104 2 102 103 0 8 0 nchpl 144 5556 0 3817 67 0 67 67 0 8 0 uvmvnodes 80 4274 0 0 88 0 88 88 0 8 0 vnodes 216 4274 0 0 238 0 238 238 0 8 0 namei 1024 18510 0 18510 5 4 1 2 0 8 1 percpumem 16 65 0 17 1 0 1 1 0 8 0 vcpupl 3904 3 0 0 1 0 1 1 0 8 0 vmpool 696 6 0 2 2 1 1 1 0 8 0 kstatmem 264 60 0 34 2 0 2 2 0 8 0 scsiplug 72 9 0 9 2 1 1 1 0 8 1 scxspl 216 25605 0 25605 14 12 2 8 1 8 2 plimitpl 152 158 0 143 1 0 1 1 0 8 0 sigapl 424 1627 0 1580 7 0 7 7 0 8 1 futexpl 64 15826 0 15823 3 2 1 1 0 8 0 knotepl 120 1112 0 0 34 0 34 34 0 8 0 kqueuepl 216 285 0 276 1 0 1 1 0 8 0 pipepl 320 241 0 213 3 0 3 3 0 8 0 fdescpl 496 1608 0 1582 7 3 4 5 0 8 0 filepl 152 7575 0 7328 12 2 10 11 0 8 0 lockfpl 104 63 0 60 1 0 1 1 0 8 0 lockfspl 48 27 0 24 1 0 1 1 0 8 0 sessionpl 144 33 0 17 1 0 1 1 0 8 0 pgrppl 48 43 0 27 1 0 1 1 0 8 0 ucredpl 104 1386 0 1375 1 0 1 1 0 8 0 zombiepl 144 1582 0 1580 1 0 1 1 0 8 0 processpl 1136 1627 0 1580 4 0 4 4 0 8 0 procpl 656 2823 0 2756 8 1 7 7 0 8 0 sosppl 168 10 0 10 1 1 0 1 0 8 0 sockpl 664 1672 0 1644 7 4 3 4 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 416 0 0 52 0 52 52 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 924 0 0 56 0 56 56 0 8 0 bufpl 280 8287 0 1872 459 0 459 459 0 8 0 anonpl 24 321209 0 314793 133 29 104 126 0 186 53 amapchunkpl 152 44809 0 44133 63 24 39 61 0 158 9 amappl16 200 6684 0 6548 9 0 9 9 0 8 0 amappl15 192 45 0 44 1 0 1 1 0 8 0 amappl14 184 195 0 182 2 1 1 2 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 2410 0 2379 2 0 2 2 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 71 0 61 1 0 1 1 0 8 0 amappl9 144 185 0 185 1 1 0 1 0 8 0 amappl8 136 160 0 125 2 0 2 2 0 8 0 amappl7 128 55 0 40 1 0 1 1 0 8 0 amappl6 120 464 0 451 2 1 1 2 0 8 0 amappl5 112 204 0 192 1 0 1 1 0 8 0 amappl4 104 633 0 596 2 0 2 2 0 8 0 amappl3 96 8845 0 8769 3 0 3 3 0 8 0 amappl2 88 2019 0 1949 4 2 2 4 0 8 0 amappl1 80 13835 0 13341 22 10 12 22 0 8 0 amappl 88 12750 0 12560 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 66 0 11 1 0 1 1 0 8 0 uaddrrnd 24 1613 0 1584 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1613 0 1584 1 0 1 1 0 8 0 vmmpekpl 168 14167 0 14097 4 0 4 4 0 8 0 vmmpepl 168 115491 0 113673 126 29 97 114 0 357 10 vmsppl 440 1612 0 1584 4 0 4 4 0 8 0 rwobjpl 56 36790 0 31373 78 1 77 77 0 8 0 pdppl 4096 3233 0 3171 132 68 64 77 0 8 2 pvpl 32 46656 0 0 377 0 377 377 0 265 0 pmappl 248 1612 0 1584 5 2 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 494 0 83 13 0 13 13 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(ffffffff828eb619) at panic+0x17b sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline] witness_checkorder(ffffffff82e4e838,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786 __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82e4e630) at __mp_lock+0xa2 sys/kern/kern_lock.c:142 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d mtx_enter_try(ffffffff82e4baa0) at mtx_enter_try+0x103 mtx_enter(ffffffff82e4baa0) at mtx_enter+0x4e sys/kern/kern_lock.c:266 pool_get(ffffffff82e4baa0,9) at pool_get+0xc4 sys/kern/subr_pool.c:579 uvmspace_alloc(0,1000,1,0) at uvmspace_alloc+0x41 sys/uvm/uvm_map.c:3279 vm_impl_init(ffff80002a204da0,ffff80002a22e2c8) at vm_impl_init+0x92 sys/arch/amd64/amd64/vmm_machdep.c:1244 vm_create(ffff800000e72000,ffff80002a22e2c8) at vm_create+0x13e sys/dev/vmm/vmm.c:388 vmmioctl(a00,c2585601,ffff800000e72000,1,ffff80002a22e2c8) at vmmioctl+0x2de VOP_IOCTL(fffffd806e306cb0,c2585601,ffff800000e72000,1,fffffd807f7d38f0,ffff80002a22e2c8) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80682430a0,c2585601,ffff800000e72000,ffff80002a22e2c8) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a22e2c8,ffff800033f56190,ffff800033f560e0) at sys_ioctl+0x4a9 syscall(ffff800033f56190) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff800033f56190) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbdad1fe7ad0, 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: 0x7ca0d63b5000, 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: 0x7ca0d63b5000, count: -3