witness: lock order reversal: 1st 0xffff8000014a81f0 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806f51f660 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff8343210f -> 0xffffffff833d2795 is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:232 #1 sblock+0xb7 sys/kern/uipc_socket2.c:536 #2 soreceive+0x28e sys/kern/uipc_socket.c:881 #3 fifo_read+0x11a sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b sys/kern/vfs_vnops.c:-1 #6 vndsetcred+0xa1 sys/dev/vnd.c:684 #7 vndioctl+0xe6c sys/dev/vnd.c:485 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #12 Xsyscall+0x128 lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:232 #1 sblock+0xb7 sys/kern/uipc_socket2.c:536 #2 sosplice+0x40d sys/kern/uipc_socket.c:1366 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1221 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #5 Xsyscall+0x128 Stopped at db_enter+0x25: 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+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(fffffd806f51f660,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806f51f648,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:232 rrw_enter(fffffd806f51f648,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 VOP_LOCK(fffffd806d712b38,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 vn_lock(fffffd806d712b38,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c4e0a58) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c4e0a58) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000014a8018,fffffd806cc54f00,ffff800038ff1738) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000014a8018,fffffd805f57c200,fffffd806cc54f00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000014a8018,fffffd806cc54f00,ffff80003c4e0cd8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800038ff1738,3,ffff80003c4e0e50,8,ffff80003c4e0f10) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff800038ff1738,ffff80003c4e0fc0,ffff80003c4e0f10) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c4e0fc0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4e0fc0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x902d079ca80, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c4e06d0 rbx 0xfffffd8004743fa8 rdx 0 rcx 0xffff800038ff1738 rax 0xffffffff83837ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003c4e05b0 r9 0x8080808080808080 r10 0x77fbeeb6c0eef614 r11 0xd239db123144578e r12 0 r13 0xfffffd8003f5cf00 r14 0x3 r15 0xffffffff rip 0xffffffff82a95135 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4e06c0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=201931 pid=25684 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4af228,0xffffffff839341b0 process=0xffff80003c4b3098 user=0xffff80003c4dc000, vmspace=0xfffffd805e57bd48 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25684 62875 68650 0 2 0 syz-executor *25684 201931 68650 0 7 0x4000000 syz-executor 3476 193517 86734 0 2 0 syz-executor 3476 476367 86734 0 3 0x4000080 sbwait syz-executor 3476 141026 86734 0 2 0x4000000 syz-executor 48190 319266 89474 0 2 0 syz-executor 48190 37533 89474 0 3 0x4000080 fsleep syz-executor 78295 208235 4488 0 2 0 syz-executor 78295 163246 4488 0 3 0x4000080 sbwait syz-executor 78295 107884 4488 0 3 0x4000000 inode syz-executor 78295 349746 4488 0 3 0x4000000 inode syz-executor 78295 324708 4488 0 3 0x4000000 inode syz-executor 68045 222728 59098 0 3 0x90 nanoslp syz-executor 68045 13041 59098 0 3 0x4000090 kqsel syz-executor 68114 354700 1 0 3 0x82 nanoslp getty 83640 244943 0 0 3 0x14200 acct acct 86734 93357 8743 0 3 0x82 nanoslp syz-executor 75126 156521 17308 0 3 0x82 sbwait sshd-session 92486 172160 0 0 3 0x14200 bored sosplice 77008 250004 0 0 3 0x14280 nfsidl nfsio 25105 25501 0 0 3 0x14280 nfsidl nfsio 5665 87896 0 0 3 0x14280 nfsidl nfsio 15498 78690 0 0 3 0x14280 nfsidl nfsio 94950 341456 0 0 3 0x14280 nfsidl nfsio 45353 151994 0 0 3 0x14280 nfsidl nfsio 17271 81412 0 0 3 0x14280 nfsidl nfsio 39358 15952 0 0 3 0x14280 nfsidl nfsio 59901 166179 0 0 3 0x14280 nfsidl nfsio 30945 133529 0 0 3 0x14280 nfsidl nfsio 34696 398250 0 0 3 0x14280 nfsidl nfsio 77457 236368 0 0 3 0x14280 nfsidl nfsio 81388 357632 0 0 3 0x14280 nfsidl nfsio 70176 308929 0 0 3 0x14280 nfsidl nfsio 31248 441099 0 0 3 0x14280 nfsidl nfsio 51727 147886 0 0 3 0x14280 nfsidl nfsio 71388 494461 0 0 3 0x14280 nfsidl nfsio 50303 503456 0 0 3 0x14280 nfsidl nfsio 97361 288137 0 0 3 0x14280 nfsidl nfsio 44606 58882 0 0 3 0x14280 nfsidl nfsio 59098 189880 8743 0 3 0x82 nanoslp syz-executor 4488 286285 8743 0 3 0x82 nanoslp syz-executor 8587 101416 8743 0 3 0x82 nanoslp syz-executor 51178 453494 8743 0 3 0x82 nanoslp syz-executor 9014 80813 8743 0 3 0x82 nanoslp syz-executor 89474 414509 8743 0 3 0x82 nanoslp syz-executor 68650 291003 8743 0 3 0x82 nanoslp syz-executor 8743 196760 42184 0 3 0x82 kqread syz-executor 42184 310209 66191 0 3 0x10008a sigsusp ksh 66191 116930 64179 0 3 0x98 kqread sshd-session 64179 275245 17308 0 3 0x92 kqread sshd-session 17308 2818 1 0 3 0x88 kqread sshd 70240 496398 32925 74 3 0x1100092 bpf pflogd 32925 180233 1 0 3 0x80 sbwait pflogd 4661 148526 91121 73 3 0x1100090 kqread syslogd 91121 181918 1 0 3 0x100082 sbwait syslogd 7230 333114 1 0 3 0x100080 kqread resolvd 44920 129390 78119 77 3 0x100092 kqread dhcpleased 73140 277429 78119 77 3 0x100092 kqread dhcpleased 78119 351681 1 0 3 0x80 kqread dhcpleased 57479 356206 0 0 3 0x14200 bored smr 50454 242266 0 0 2 0x14200 zerothread 61072 193619 0 0 3 0x14200 aiodoned aiodoned 27808 218431 0 0 3 0x14200 syncer update 32104 294424 0 0 3 0x14200 cleaner cleaner 72314 422755 0 0 3 0x14200 reaper reaper 46834 299802 0 0 3 0x14200 pgdaemon pagedaemon 81977 81855 0 0 3 0x14200 bored viomb 33375 517724 0 0 3 0x40014200 acpi0 acpi0 72031 365316 0 0 7 0x40014200 idle1 29756 229073 0 0 3 0x14200 bored softnet3 38913 245777 0 0 3 0x14200 bored softnet2 85363 39426 0 0 3 0x14200 bored softnet1 4457 465308 0 0 3 0x14200 bored softnet0 35508 349181 0 0 3 0x14200 bored systqmp 80970 512670 0 0 3 0x14200 bored systq 7770 369577 0 0 3 0x14200 tmoslp softclockmp 97099 380509 0 0 3 0x40014200 tmoslp softclock 2491 134977 0 0 3 0x40014200 idle0 1 299433 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 25684 (syz-executor) thread 0xffff800038ff1738 (201931) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8391fc68) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 unp_connect+0x26c sys/kern/uipc_usrreq.c:868 #2 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 #3 sosend+0x804 sys/kern/uipc_socket.c:-1 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000014a81f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e2 sys/kern/uipc_socket.c:630 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 78295 (syz-executor) thread 0xffff800038ff0028 (163246) exclusive rrwlock inode r = 0 (0xfffffd806e168300) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 #7 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #8 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #9 namei+0x7aa sys/kern/vfs_lookup.c:250 #10 vn_open+0x13f sys/kern/vfs_vnops.c:140 #11 vndioctl+0xcb1 sys/dev/vnd.c:457 #12 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #13 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #14 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #16 Xsyscall+0x128 Process 78295 (syz-executor) thread 0xffff8000394007e0 (107884) exclusive rrwlock inode r = 0 (0xfffffd806c0f8f40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11043K 11820K 166960K 13487 0 pcb 18 16K 19K 166960K 330 0 rtable 182 9K 10K 166960K 555 0 pf 38 18K 67486K 166960K 129 0 ifaddr 36 6K 8K 166960K 97 0 ifgroup 60 2K 3K 166960K 150 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 38K 166960K 170 0 ioctlops 0 0K 4K 166960K 1754 0 iov 0 0K 16K 166960K 67 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1421 89K 90K 166960K 2729 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 30 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 78 0 dirhash 12 2K 3K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 1525 0 sigio 0 0K 0K 166960K 37 0 proc 72 91K 115K 166960K 720 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 169 0 in_multi 74 5K 7K 166960K 160 0 ether_multi 2 0K 0K 166960K 11 0 mrt 0 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 115 519K 519K 166960K 115 0 exec 0 0K 1K 166960K 572 0 fusefs mount 1 32K 32K 166960K 1 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 257 168K 182K 166960K 15919 0 UVM aobj 47 2K 4K 166960K 53 0 pinsyscall 45 90K 105K 166960K 2682 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 52 0 NDP 13 0K 2K 166960K 61 0 temp 82 8696K 8800K 166960K 55751 0 kqueue 13 20K 32K 166960K 295 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 129 0 126 1 0 1 1 0 8 0 rtentry 176 173 0 100 6 0 6 6 0 8 0 unpcb 144 1169 0 1142 8 5 3 4 0 8 2 syncache 336 12 0 12 4 3 1 1 0 8 1 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 615 0 607 11 9 2 8 0 8 1 arp 128 27 0 17 1 0 1 1 0 8 0 inpcb 328 1790 0 1777 24 17 7 12 0 8 5 nd6 144 34 0 15 2 0 2 2 0 8 0 pkpcb 40 13 0 13 3 2 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 38 0 38 2 1 1 1 0 8 1 pppxif 1504 9 0 9 2 1 1 1 0 8 1 pffrag 232 11 0 5 1 0 1 1 0 482 0 pffrnode 88 11 0 5 1 0 1 1 0 8 0 pffrent 40 19 0 13 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 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 99 0 49 1 0 1 1 0 8 0 pfstkey 128 99 0 49 2 0 2 2 0 8 0 pfstate 384 98 0 49 6 0 6 6 0 8 0 pfrule 1344 25 0 19 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 711 0 389 29 2 27 29 0 8 4 art_table 32 714 0 389 4 0 4 4 0 8 0 art_node 16 165 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 74 0 64 1 0 1 1 0 8 0 shmpl 112 50 0 6 2 0 2 2 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 4232 0 2731 95 0 95 95 0 8 0 ffsino 288 4232 0 2731 109 0 109 109 0 8 0 nchpl 144 6382 0 4687 64 0 64 64 0 8 0 rtmask 32 6 0 6 2 1 1 1 0 8 1 uvmvnodes 80 5077 0 0 104 0 104 104 0 8 0 vnodes 216 5077 0 0 283 0 283 283 0 8 0 namei 1024 22035 0 22031 1 0 1 1 0 8 0 percpumem 16 100 0 50 1 0 1 1 0 8 0 kstatmem 264 92 0 60 3 0 3 3 0 8 0 scsiplug 72 3 0 3 3 3 0 1 0 8 0 scxspl 216 25081 0 25081 13 10 3 8 1 8 3 plimitpl 152 238 0 219 1 0 1 1 0 8 0 sigapl 424 1856 0 1783 9 0 9 9 0 8 0 knotepl 120 697 0 0 22 0 22 22 0 8 0 kqueuepl 224 594 0 584 7 5 2 5 0 8 1 pipepl 336 337 0 310 9 6 3 9 0 8 0 fdescpl 520 1814 0 1781 3 0 3 3 0 8 0 filepl 160 12277 0 12043 26 13 13 17 0 8 1 lockfpl 104 605 0 603 2 1 1 2 0 8 0 lockfspl 48 173 0 171 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 60 0 43 1 0 1 1 0 8 0 ucredpl 104 1804 0 1789 1 0 1 1 0 8 0 zombiepl 144 1786 0 1783 1 0 1 1 0 8 0 processpl 1240 1856 0 1783 6 0 6 6 0 8 0 procpl 656 4279 0 4197 8 0 8 8 0 8 0 srpgc 96 10 0 10 4 3 1 1 0 8 1 sosppl 168 16 0 16 3 2 1 1 0 8 1 sockpl 728 3156 0 3103 32 21 11 16 0 8 6 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 31 0 0 4 1 3 4 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 1136 0 0 71 0 71 71 0 8 0 bufpl 280 10327 0 4185 440 0 440 440 0 8 0 anonpl 32 9914 0 0 80 0 80 80 0 246 0 amapchunkpl 152 53338 0 52815 48 20 28 34 0 158 5 amappl16 200 5255 0 5206 47 35 12 17 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 136 0 122 1 0 1 1 0 8 0 amappl13 176 31 0 31 1 1 0 1 0 8 0 amappl12 168 2478 0 2445 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 244 0 244 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 118 0 104 1 0 1 1 0 8 0 amappl6 120 198 0 193 1 0 1 1 0 8 0 amappl5 112 133 0 123 1 0 1 1 0 8 0 amappl4 104 363 0 342 1 0 1 1 0 8 0 amappl3 96 10709 0 10589 5 1 4 4 0 8 0 amappl2 88 735 0 664 2 0 2 2 0 8 0 amappl1 80 15890 0 15208 18 2 16 16 0 8 0 amappl 88 14908 0 14731 6 1 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 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 128 255 0 255 3 2 1 1 0 8 1 dma64 64 8 0 8 3 3 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 52 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1814 0 1781 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1814 0 1781 1 0 1 1 0 8 0 vmmpekpl 168 16903 0 16861 3 0 3 3 0 8 0 vmmpepl 168 119322 0 117114 122 15 107 107 0 357 7 vmsppl 480 1813 0 1781 6 1 5 5 0 8 0 rwobjpl 72 37298 0 31121 113 0 113 113 0 8 0 pdppl 4096 3635 0 3562 137 64 73 83 0 8 0 pvpl 32 19259 0 0 156 1 155 155 0 265 0 pmappl 256 1813 0 1781 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 504 0 90 13 0 13 13 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:438 witness_checkorder(fffffd806f51f660,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806f51f648,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:232 rrw_enter(fffffd806f51f648,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 VOP_LOCK(fffffd806d712b38,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 vn_lock(fffffd806d712b38,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c4e0a58) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c4e0a58) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000014a8018,fffffd806cc54f00,ffff800038ff1738) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000014a8018,fffffd805f57c200,fffffd806cc54f00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000014a8018,fffffd806cc54f00,ffff80003c4e0cd8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800038ff1738,3,ffff80003c4e0e50,8,ffff80003c4e0f10) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff800038ff1738,ffff80003c4e0fc0,ffff80003c4e0f10) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c4e0fc0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4e0fc0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x902d079ca80, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x448 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5