panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 135698 48565 32767 0x1010 0x2000 1 syz-executor * 39733 48565 32767 0x1010 0x4080000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83073bea) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806bfa87d0,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd806bfa87c0,2) at rw_enter+0x122 uvmfault_lookup(ffff80002a15ca70,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a15ca70,ffff80002a15caa8,ffff80002a15cad0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806bfa86e0,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a15cc10,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a15cc10) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a15cf94,5,20000100,ffff80002a15cfc8,0,37,d2f4e87a02a881ab) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000369ccf58,ffff80002a15d100,ffff80002a15d050) at sys_sysctl+0x422 syscall(ffff80002a15d100) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a15d100) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002a15d180, 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 (rwlock) vmmaplk ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83073bea) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806bfa87d0,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd806bfa87c0,2) at rw_enter+0x122 uvmfault_lookup(ffff80002a15ca70,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a15ca70,ffff80002a15caa8,ffff80002a15cad0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806bfa86e0,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a15cc10,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a15cc10) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a15cf94,5,20000100,ffff80002a15cfc8,0,37,d2f4e87a02a881ab) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000369ccf58,ffff80002a15d100,ffff80002a15d050) at sys_sysctl+0x422 syscall(ffff80002a15d100) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a15d100) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x28537b0a990, count: -15 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a15c670 rbx 0xffffffff8347adbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff8000369ccf58 rax 0xffffffff83479ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7ec060e30cc818bb r11 0x828ff0177315c59c r12 0xffffffff8347abc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81dab065 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a15c660 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=39733 pid=48565 tcnt=5 stat=onproc flags process=1010 proc=4080000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000369cc538 scnt=4 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000369cd6f0,0xffff8000369cc2c0 process=0xffff80002a0d1fc0 user=0xffff80002a158000, vmspace=0xfffffd806bfa86e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48565 135698 14341 32767 7 0x3010 syz-executor 48565 251143 14341 32767 2 0x4081010 syz-executor 48565 15828 14341 32767 2 0x4081090 syz-executor *48565 39733 14341 32767 7 0x4081010 syz-executor 48565 506842 14341 32767 2 0x4081010 syz-executor 38758 40133 27361 32767 3 0x90 nanoslp syz-executor 38758 465890 27361 32767 3 0x4000090 piperd syz-executor 38758 233560 27361 32767 3 0x4000090 fsleep syz-executor 38758 381140 27361 32767 3 0x4000090 fsleep syz-executor 67958 422441 77757 32767 3 0x90 nanoslp syz-executor 67958 287736 77757 32767 3 0x4000090 kqread syz-executor 67958 94509 77757 32767 3 0x4000090 fsleep syz-executor 26610 169912 37036 32767 3 0x90 nanoslp syz-executor 26610 307594 37036 32767 3 0x4000090 kqread syz-executor 26610 277554 37036 32767 3 0x4000090 fsleep syz-executor 60852 124815 23653 32767 3 0x90 nanoslp syz-executor 60852 219010 23653 32767 3 0x4000090 fsleep syz-executor 60852 305975 23653 32767 3 0x4000090 kqpoll syz-executor 60852 27729 23653 32767 3 0x4000090 fsleep syz-executor 23653 331940 22993 32767 3 0x90 nanoslp syz-executor 22993 461684 46654 0 3 0x82 wait syz-executor 86572 220448 17655 32767 3 0x90 nanoslp syz-executor 17655 381600 46654 0 3 0x82 wait syz-executor 18112 360589 73278 32767 3 0x90 nanoslp syz-executor 73278 399215 46654 0 3 0x82 wait syz-executor 27361 213613 30171 32767 3 0x90 nanoslp syz-executor 30171 156818 46654 0 3 0x82 wait syz-executor 14341 386775 32666 32767 3 0x90 nanoslp syz-executor 32666 287829 46654 0 3 0x82 wait syz-executor 58431 474299 28726 32767 3 0x10 biowait syz-executor 28726 262790 46654 0 3 0x82 wait syz-executor 77757 425280 45026 32767 3 0x90 nanoslp syz-executor 45026 156788 46654 0 3 0x82 wait syz-executor 37036 185708 13293 32767 3 0x90 nanoslp syz-executor 13293 13058 46654 0 3 0x82 wait syz-executor 59442 273011 0 0 3 0x14200 bored sosplice 24531 299929 61162 0 3 0x100082 sbwait arp 61162 192062 12202 0 3 0x10008a sigsusp sh 12202 464267 1 0 3 0x80 wait syz-executor 46654 409303 71817 0 3 0x82 kqread syz-executor 71817 191043 39736 0 3 0x10008a sigsusp ksh 39736 370162 9796 0 3 0x98 kqread sshd-session 9796 487809 95243 0 3 0x92 kqread sshd-session 51705 481768 1 0 3 0x100083 ttyin getty 95243 1388 1 0 3 0x88 kqread sshd 39462 74531 25922 73 3 0x1100090 kqread syslogd 25922 352494 1 0 3 0x100082 sbwait syslogd 81639 493356 1 0 3 0x100080 kqread resolvd 94211 397448 75882 77 3 0x100092 kqread dhcpleased 2865 439495 75882 77 3 0x100092 kqread dhcpleased 75882 214841 1 0 3 0x80 kqread dhcpleased 10506 397644 0 0 3 0x14200 bored smr 7311 68208 0 0 2 0x14200 zerothread 41491 475450 0 0 3 0x14200 aiodoned aiodoned 90654 27405 0 0 3 0x14200 syncer update 1520 175945 0 0 3 0x14200 cleaner cleaner 57460 260098 0 0 3 0x14200 reaper reaper 82037 232456 0 0 3 0x14200 pgdaemon pagedaemon 57095 414250 0 0 3 0x14200 bored viomb 79882 31440 0 0 3 0x40014200 acpi0 acpi0 98297 85167 0 0 3 0x40014200 idle1 63429 58665 0 0 3 0x14200 bored softnet3 11438 51566 0 0 3 0x14200 bored softnet2 23971 113384 0 0 3 0x14200 bored softnet1 69886 221661 0 0 3 0x14200 bored softnet0 87473 287513 0 0 3 0x14200 bored systqmp 34390 247919 0 0 3 0x14200 bored systq 83144 115770 0 0 3 0x14200 tmoslp softclockmp 76271 282811 0 0 3 0x40014200 tmoslp softclock 551 115482 0 0 3 0x40014200 idle0 1 472921 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff8350d648) #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 sysctl_file+0xa2d #4 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #5 sys_sysctl+0x422 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 48565 (syz-executor) thread 0xffff8000369ccf58 (39733) exclusive rwlock netlock r = 0 (0xffffffff83480cf0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sysctl_file+0xa18 sys/kern/kern_sysctl.c:1675 #2 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #3 sys_sysctl+0x422 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835c8380) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:181 #2 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #3 sys_sysctl+0x422 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff834e7580) #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 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #4 sys_sysctl+0x422 #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 exclusive mutex &table->inpt_mtx r = 0 (0xffffffff8350d648) #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 sysctl_file+0xa2d #4 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #5 sys_sysctl+0x422 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 58431 (syz-executor) thread 0xffff80002a13d1f8 (474299) exclusive rrwlock inode r = 0 (0xfffffd80510196f8) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8051019e68) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 11051K 11059K 166960K 12997 0 pcb 17 24K 28K 166960K 27 0 rtable 240 6K 7K 166960K 19327 0 pf 31 16K 16K 166960K 1176 0 ifaddr 42 15K 19K 166960K 2322 0 ifgroup 50 2K 2K 166960K 2329 0 sysctl 4 1K 5K 166960K 25 0 counters 64 36K 36K 166960K 1198 0 ioctlops 0 0K 2K 166960K 1188 0 iov 0 0K 34K 166960K 2389 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1472 92K 93K 166960K 12920 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 447 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1103 0 dirhash 15 3K 4K 166960K 609 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 28 105K 173K 166960K 29372 0 sigio 0 0K 0K 166960K 784 0 proc 58 79K 176K 166960K 18619 0 subproc 117 7K 13K 166960K 8502 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6703 0 in_multi 99 7K 7K 166960K 7399 0 ether_multi 1 0K 0K 166960K 185 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 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 12064 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 296 83K 140K 166960K 243810 0 UVM aobj 131 6K 8K 166960K 137 0 pinsyscall 50 100K 142K 166960K 45855 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1792 0 NDP 11 0K 2K 166960K 1726 0 temp 80 6825K 6904K 166960K 176918 0 kqueue 14 22K 37K 166960K 4248 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 5050 0 5046 35 34 1 5 0 8 0 rtentry 112 6594 0 6481 17 13 4 4 0 8 0 unpcb 144 25756 0 25736 136 134 2 9 0 8 1 syncache 336 521 0 521 36 35 1 1 0 8 1 tcpqe 32 241 0 241 39 38 1 1 0 8 1 tcpcb 808 18309 0 18124 209 171 38 38 0 8 19 arp 120 1170 0 1151 1 0 1 1 0 8 0 ipq 40 117 0 116 7 6 1 1 0 8 0 ipqe 40 1893 0 1892 10 9 1 2 0 8 0 inpcb 336 39976 0 39720 223 192 31 31 0 8 9 ip6q 72 4 0 4 4 4 0 1 0 8 0 ip6af 40 8 0 8 4 4 0 1 0 8 0 nd6 136 1957 0 1931 8 7 1 2 0 8 0 kcovpl 48 654 0 645 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 26641 0 26162 227 197 30 32 0 8 0 art_table 32 26642 0 26162 10 5 5 5 0 8 0 art_node 16 6593 0 6490 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 17 1 0 1 1 0 8 0 semapl 112 1065 0 1055 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 430 0 403 21 17 4 4 0 8 0 dino2pl 256 34629 0 31224 214 0 214 214 0 8 0 ffsino 272 34629 0 31224 228 0 228 228 0 8 0 nchpl 144 63735 0 60611 116 0 116 116 0 8 0 uvmvnodes 80 10333 0 0 211 0 211 211 0 8 0 vnodes 216 10333 0 0 575 0 575 575 0 8 0 namei 1024 287543 0 287542 51 50 1 2 0 8 0 percpumem 16 613 0 567 1 0 1 1 0 8 0 kstatmem 264 1156 0 1134 3 1 2 2 0 8 0 scxspl 216 311706 0 311705 78 75 3 8 1 8 2 plimitpl 152 9271 0 9245 2 0 2 2 0 8 0 sigapl 424 28505 0 28446 15 7 8 9 0 8 0 futexpl 64 313055 0 313048 25 24 1 1 0 8 0 knotepl 120 1769 0 0 24 0 24 24 0 8 0 kqueuepl 216 9618 0 9605 96 90 6 8 0 8 5 pipepl 320 5931 0 5899 72 68 4 9 0 8 0 fdescpl 496 28486 0 28446 25 19 6 8 0 8 0 filepl 152 194271 0 193872 160 140 20 26 0 8 4 lockfpl 104 7238 0 7236 4 2 2 2 0 8 1 lockfspl 48 2194 0 2192 1 0 1 1 0 8 0 sessionpl 144 741 0 724 1 0 1 1 0 8 0 pgrppl 48 2159 0 2134 1 0 1 1 0 8 0 ucredpl 104 34431 0 34412 1 0 1 1 0 8 0 zombiepl 144 28448 0 28446 1 0 1 1 0 8 0 processpl 1160 28505 0 28446 7 1 6 6 0 8 0 procpl 648 63782 0 63709 9 1 8 8 0 8 0 srpgc 96 40 0 40 17 17 0 1 0 8 0 sosppl 168 303 0 301 22 21 1 1 0 8 0 sockpl 664 71372 0 71090 360 327 33 33 0 8 8 mcl64k 65536 61 0 0 5 0 5 5 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 15 0 0 2 0 2 2 0 8 0 mcl4k 4096 291 0 0 18 6 12 18 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 479 0 0 9 2 7 7 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 7998 0 0 490 0 490 490 0 8 0 bufpl 280 51168 0 40834 739 0 739 739 0 8 0 anonpl 24 3560123 0 3554971 398 331 67 103 0 185 0 amapchunkpl 152 795932 0 795178 284 248 36 49 0 158 3 amappl16 200 80690 0 80666 551 538 13 38 0 8 8 amappl15 192 16 0 16 6 6 0 1 0 8 0 amappl14 184 1562 0 1551 1 0 1 1 0 8 0 amappl13 176 74 0 73 6 5 1 1 0 8 0 amappl12 168 38334 0 38292 4 1 3 3 0 8 0 amappl11 160 68 0 58 1 0 1 1 0 8 0 amappl10 152 15 0 14 4 3 1 1 0 8 0 amappl9 144 134 0 133 2 1 1 1 0 8 0 amappl8 136 18 0 16 1 0 1 1 0 8 0 amappl7 128 1399 0 1386 1 0 1 1 0 8 0 amappl6 120 5825 0 5821 1 0 1 1 0 8 0 amappl5 112 2567 0 2557 1 0 1 1 0 8 0 amappl4 104 2607 0 2591 1 0 1 1 0 8 0 amappl3 96 160495 0 160345 8 3 5 5 0 8 0 amappl2 88 10464 0 10395 10 7 3 3 0 8 0 amappl1 80 168410 0 167851 28 8 20 25 0 8 0 amappl 88 236564 0 236326 9 2 7 7 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 28486 0 28446 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 28486 0 28446 1 0 1 1 0 8 0 vmmpekpl 168 246965 0 246911 5 0 5 5 0 8 0 vmmpepl 168 1743333 0 1741180 417 313 104 149 0 357 0 vmsppl 440 28485 0 28446 20 15 5 7 0 8 0 rwobjpl 56 469183 0 457767 202 35 167 169 0 8 0 pdppl 4096 56979 0 56892 1541 1450 91 123 0 8 4 pvpl 32 44218 0 0 358 1 357 357 0 265 0 pmappl 248 28485 0 28446 6 2 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 3279 0 2122 34 0 34 34 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(ffffffff83073bea) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806bfa87d0,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd806bfa87c0,2) at rw_enter+0x122 uvmfault_lookup(ffff80002a15ca70,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a15ca70,ffff80002a15caa8,ffff80002a15cad0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806bfa86e0,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a15cc10,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a15cc10) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a15cf94,5,20000100,ffff80002a15cfc8,0,37,d2f4e87a02a881ab) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000369ccf58,ffff80002a15d100,ffff80002a15d050) at sys_sysctl+0x422 syscall(ffff80002a15d100) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a15d100) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x28537b0a990, count: -15 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 __mp_release_all(ffffffff835c8178) at __mp_release_all+0xd8 sys/kern/kern_lock.c:194 msleep(ffff80002a0d2120,ffff80002a0d20c8,20,ffffffff830b80f4,0) at msleep+0x1ed single_thread_set(ffff8000369cc538,3) at single_thread_set+0x41e single_thread_wait sys/kern/kern_sig.c:2187 [inline] single_thread_set(ffff8000369cc538,3) at single_thread_set+0x41e sys/kern/kern_sig.c:2170 exit1(ffff8000369cc538,b,0,1) at exit1+0xa3 sys/kern/kern_exit.c:132 sys_exit(ffff8000369cc538,ffff80002a1376b0,ffff80002a137600) at sys_exit+0x1a syscall(ffff80002a1376b0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1376b0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf373239f20, count: 5 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 __mp_release_all(ffffffff835c8178) at __mp_release_all+0xd8 sys/kern/kern_lock.c:194 msleep(ffff80002a0d2120,ffff80002a0d20c8,20,ffffffff830b80f4,0) at msleep+0x1ed single_thread_set(ffff8000369cc538,3) at single_thread_set+0x41e single_thread_wait sys/kern/kern_sig.c:2187 [inline] single_thread_set(ffff8000369cc538,3) at single_thread_set+0x41e sys/kern/kern_sig.c:2170 exit1(ffff8000369cc538,b,0,1) at exit1+0xa3 sys/kern/kern_exit.c:132 sys_exit(ffff8000369cc538,ffff80002a1376b0,ffff80002a137600) at sys_exit+0x1a syscall(ffff80002a1376b0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1376b0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf373239f20, count: -10