login: witness: lock order reversal: 1st 0xffffffff8290fe50 netlock (netlock) 2nd 0xfffffd807716e030 vmmaplk (&map->lock) lock order "&map->lock"(rwlock) -> "netlock"(rwlock) first seen at: #0 rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 #1 udp_sysctl+0x8a sys/netinet/udp_usrreq.c:1269 #2 sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 lock order "netlock"(rwlock) -> "&map->lock"(rwlock) first seen at: #0 rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #4 kpageflttrap+0x209 #5 kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x53 #8 soo_ioctl+0x26c #9 sys_ioctl+0x4a2 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(fffffd807716e030,1,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(fffffd807716e030,1,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_read(fffffd807716e020) at rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff80002bb4e9f0,0) at uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 uvm_fault_check(ffff80002bb4e9f0,ffff80002bb4ea28,ffff80002bb4ea50) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 uvm_fault(fffffd807716e018,1000,0,2) at uvm_fault+0x102 sys/uvm/uvm_fault.c:602 kpageflttrap(ffff80002bb4eb80,181c) at kpageflttrap+0x209 kerntrap(ffff80002bb4eb80) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 soo_ioctl(fffffd806ef70e48,c020691b,ffff80002bb4eda0,ffff800024690010) at soo_ioctl+0x26c sys_ioctl(ffff800024690010,ffff80002bb4eeb8,ffff80002bb4ef10) at sys_ioctl+0x4a2 syscall(ffff80002bb4ef80) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002bb4ef80) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfd245f55270, count: -14 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff80002bb4e6e0 rbx 0x3 rdx 0xffff800000bc1540 rcx 0 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffff80002bb4e650 r9 0x8080808080808080 r10 0x45995a2c1bd050 r11 0xca1be9302b0a7bd2 r12 0xffffffff82ab0380 w_lodata+0x52a10 r13 0 r14 0xffffffff82aaab80 w_lodata+0x4d210 r15 0xfffffd8002f62d80 rip 0xffffffff8138d658 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002bb4e6d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=50008 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000260a2548,0xffff800024691d00 process=0xffff80002122dd30 user=0xffff80002bb4a000, vmspace=0xfffffd807716e018 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53035 122674 12138 32767 7 0x10 syz-executor.4 81828 277964 52893 32767 2 0x10 syz-executor.1 *81828 50008 52893 32767 7 0x4000010 syz-executor.1 9894 243906 0 0 3 0x14200 bored sosplice 84762 194769 96564 32767 3 0x10 biowait syz-executor.0 96564 113665 5128 0 3 0x82 wait syz-executor.0 5907 502415 24550 32767 3 0x90 nanoslp syz-executor.5 33526 499361 697 32767 3 0x10 biowait syz-executor.3 24550 263050 5128 0 3 0x82 wait syz-executor.5 21493 249247 81917 32767 3 0x10 biowait syz-executor.7 1973 117510 80472 32767 3 0x10 biowait syz-executor.6 81917 355496 5128 0 3 0x82 wait syz-executor.7 80472 167378 5128 0 3 0x82 wait syz-executor.6 12138 219056 72438 32767 3 0x90 nanoslp syz-executor.4 72438 272392 5128 0 3 0x82 wait syz-executor.4 43683 181955 88416 32767 3 0x90 nanoslp syz-executor.2 697 205289 5128 0 3 0x82 wait syz-executor.3 52893 136290 84980 32767 3 0x90 nanoslp syz-executor.1 88416 503273 5128 0 3 0x82 wait syz-executor.2 84980 388604 5128 0 3 0x82 wait syz-executor.1 5128 413506 15502 0 3 0x82 thrsleep syz-fuzzer 5128 297361 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 334150 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 306464 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 165275 15502 0 3 0x4000082 kqread syz-fuzzer 5128 460944 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 207878 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 490301 15502 0 3 0x4000082 thrsleep syz-fuzzer 5128 436702 15502 0 3 0x4000082 thrsleep syz-fuzzer 15502 254072 73882 0 3 0x10008a sigsusp ksh 73882 69255 73466 0 3 0x9a kqread sshd 98928 114194 1 0 3 0x100083 ttyin getty 73466 253940 1 0 3 0x88 kqread sshd 21943 327426 89753 73 3 0x1100090 kqread syslogd 89753 106205 1 0 3 0x100082 netio syslogd 25315 261982 1 0 3 0x100080 kqread resolvd 8708 466511 77221 77 3 0x100092 kqread dhcpleased 59216 404187 77221 77 3 0x100092 kqread dhcpleased 77221 512415 1 0 3 0x80 kqread dhcpleased 98508 244959 0 0 3 0x14200 bored smr 59014 452930 0 0 2 0x14200 zerothread 95989 47642 0 0 3 0x14200 aiodoned aiodoned 57969 100605 0 0 3 0x14200 syncer update 7873 95401 0 0 3 0x14200 cleaner cleaner 76927 43075 0 0 3 0x14200 reaper reaper 3628 102180 0 0 3 0x14200 pgdaemon pagedaemon 91719 226308 0 0 3 0x14200 bored viomb 80165 311193 0 0 3 0x40014200 acpi0 acpi0 46137 188377 0 0 3 0x40014200 idle1 83156 137762 0 0 3 0x14200 bored softnet 90896 507185 0 0 3 0x14200 bored systqmp 39763 338485 0 0 3 0x14200 bored systq 39115 384221 0 0 3 0x40014200 bored softclock 22584 63101 0 0 3 0x40014200 idle0 1 120520 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 81828 (syz-executor.1) thread 0xffff800024690010 (50008) shared rwlock netlock r = 0 (0xffffffff8290fe50) #0 witness_lock+0x44d #1 ifioctl_get+0x3f0 sys/net/if.c:2348 #2 soo_ioctl+0x26c #3 sys_ioctl+0x4a2 #4 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829de988) #0 witness_lock+0x44d #1 soo_ioctl+0x25a sys/kern/sys_socket.c:136 #2 sys_ioctl+0x4a2 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 Process 84762 (syz-executor.0) thread 0xffff8000212367e0 (194769) exclusive rrwlock inode r = 0 (0xfffffd8076e231b8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8076e230a8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 33526 (syz-executor.3) thread 0xffff8000260a27e8 (499361) exclusive rrwlock inode r = 0 (0xfffffd8076e23928) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806855d0a0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 21493 (syz-executor.7) thread 0xffff8000260a3268 (249247) exclusive rrwlock inode r = 0 (0xfffffd8076e23a38) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806855d2c0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 1973 (syz-executor.6) thread 0xffff8000260a37a8 (117510) exclusive rrwlock inode r = 0 (0xfffffd8076e23708) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806855d3d0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10174 6407K 6419K 78643K 11267 0 pcb 13 8K 8K 78643K 13 0 rtable 240 6K 7K 78643K 380 0 ifaddr 81 16K 16K 78643K 89 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 58 0 ioctlops 0 0K 2K 78643K 34 0 iov 0 0K 12K 78643K 1 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1270 79K 79K 78643K 1297 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 3 0K 0K 78643K 3 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 20 73K 113K 78643K 280 0 sigio 0 0K 0K 78643K 2 0 proc 56 74K 99K 78643K 482 0 subproc 104 6K 6K 78643K 117 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 7 0 in_multi 99 6K 6K 78643K 115 0 ether_multi 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 632 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 270 79K 81K 78643K 4591 0 UVM aobj 4 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 4 0 NDP 11 0K 2K 78643K 30 0 temp 87 4697K 4761K 78643K 4557 0 kqueue 12 18K 20K 78643K 27 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 44 0 41 1 0 1 1 0 8 0 rtentry 112 123 0 12 4 0 4 4 0 8 0 unpcb 136 71 0 58 2 0 2 2 0 8 1 syncache 296 12 0 12 2 1 1 1 0 8 1 tcpqe 32 425 0 425 1 0 1 1 0 8 1 tcpcb 736 55 0 40 2 0 2 2 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 304 128 0 117 2 0 2 2 0 8 1 nd6 48 28 0 3 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 499 0 44 29 0 29 29 0 8 0 art_table 32 500 0 44 4 0 4 4 0 8 0 art_node 16 122 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1616 0 187 90 0 90 90 0 8 0 ffsino 272 1616 0 187 96 0 96 96 0 8 0 nchpl 144 2007 0 387 62 0 62 62 0 8 0 uvmvnodes 80 1742 0 0 36 0 36 36 0 8 0 vnodes 224 1742 0 0 103 0 103 103 0 8 0 namei 1024 6583 0 6579 2 0 2 2 0 8 1 percpumem 16 41 0 1 1 0 1 1 0 8 0 scxspl 216 6126 0 6122 2 1 1 2 0 8 0 plimitpl 152 49 0 27 1 0 1 1 0 8 0 sigapl 424 553 0 505 7 0 7 7 0 8 1 futexpl 64 650 0 650 1 0 1 1 0 8 1 knotepl 120 100 0 0 4 0 4 4 0 8 0 kqueuepl 216 35 0 27 1 0 1 1 0 8 0 pipepl 336 132 0 104 3 0 3 3 0 8 0 fdescpl 496 538 0 507 7 1 6 6 0 8 1 filepl 152 1894 0 1658 11 0 11 11 0 8 1 lockfpl 104 19 0 17 1 0 1 1 0 8 0 lockfspl 48 8 0 6 1 0 1 1 0 8 0 sessionpl 144 24 0 8 1 0 1 1 0 8 0 pgrppl 48 24 0 8 1 0 1 1 0 8 0 ucredpl 96 178 0 160 1 0 1 1 0 8 0 zombiepl 144 507 0 505 1 0 1 1 0 8 0 processpl 1064 553 0 505 5 1 4 4 0 8 0 procpl 672 706 0 649 6 0 6 6 0 8 0 sosppl 168 11 0 11 1 0 1 1 0 8 1 sockpl 480 244 0 218 7 0 7 7 0 8 3 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 170 0 0 22 0 22 22 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 346 0 0 22 0 22 22 0 8 0 bufpl 288 3725 0 146 256 0 256 256 0 8 0 anonpl 24 96891 0 86426 72 0 72 72 0 186 0 amapchunkpl 152 10137 0 9494 33 1 32 32 0 158 1 amappl16 200 674 0 381 18 1 17 17 0 8 0 amappl15 192 132 0 125 1 0 1 1 0 8 0 amappl14 184 48 0 44 1 0 1 1 0 8 0 amappl13 176 103 0 101 1 0 1 1 0 8 0 amappl12 168 12 0 10 1 0 1 1 0 8 0 amappl11 160 57 0 45 1 0 1 1 0 8 0 amappl10 152 37 0 34 1 0 1 1 0 8 0 amappl9 144 517 0 509 1 0 1 1 0 8 0 amappl8 136 581 0 534 2 0 2 2 0 8 0 amappl7 128 140 0 126 1 0 1 1 0 8 0 amappl6 120 237 0 215 2 1 1 2 0 8 0 amappl5 112 291 0 273 1 0 1 1 0 8 0 amappl4 104 843 0 816 2 1 1 2 0 8 0 amappl3 96 172 0 160 1 0 1 1 0 8 0 amappl2 88 518 0 475 3 0 3 3 0 8 0 amappl1 80 12620 0 12046 18 2 16 18 0 8 2 amappl 88 4165 0 3955 7 0 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 538 0 507 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 538 0 507 1 0 1 1 0 8 0 vmmpekpl 168 8479 0 8426 3 0 3 3 0 8 0 vmmpepl 168 51780 0 49606 129 0 129 129 0 357 25 vmsppl 368 537 0 507 4 0 4 4 0 8 0 rwobjpl 56 14844 0 11944 43 0 43 43 0 8 0 pdppl 4096 1083 0 1014 113 32 81 91 0 8 12 pvpl 32 303681 0 288578 251 3 248 249 0 265 111 pmappl 248 537 0 507 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 650 0 34 18 0 18 18 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(fffffd807716e030,1,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(fffffd807716e030,1,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_read(fffffd807716e020) at rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff80002bb4e9f0,0) at uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 uvm_fault_check(ffff80002bb4e9f0,ffff80002bb4ea28,ffff80002bb4ea50) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 uvm_fault(fffffd807716e018,1000,0,2) at uvm_fault+0x102 sys/uvm/uvm_fault.c:602 kpageflttrap(ffff80002bb4eb80,181c) at kpageflttrap+0x209 kerntrap(ffff80002bb4eb80) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 soo_ioctl(fffffd806ef70e48,c020691b,ffff80002bb4eda0,ffff800024690010) at soo_ioctl+0x26c sys_ioctl(ffff800024690010,ffff80002bb4eeb8,ffff80002bb4ef10) at sys_ioctl+0x4a2 syscall(ffff80002bb4ef80) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002bb4ef80) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfd245f55270, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a 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+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc syscall(ffff8000211dec90) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff8000211dec90) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeb840, count: -6