witness: lock order reversal: 1st 0xffff800001701800 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd80784b5118 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83411fb8 -> 0xffffffff8338047e is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 sblock+0xb6 sys/kern/uipc_socket2.c:536 #2 soreceive+0x27d sys/kern/uipc_socket.c:878 #3 fifo_read+0x117 sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b sys/kern/vfs_vnops.c:-1 #6 vndsetcred+0xa1 sys/dev/vnd.c:685 #7 vndioctl+0xdfc sys/dev/vnd.c:486 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #11 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #12 Xsyscall+0x128 lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 sblock+0xb6 sys/kern/uipc_socket2.c:536 #2 sosplice+0x312 sys/kern/uipc_socket.c:1335 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1227 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #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(fffffd80784b5118,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd80784b5100,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd80784b5100,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd8069ee09a0,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd8069ee09a0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c431160) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c431160) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800001701618,fffffd807df97800,ffff80003ac09778) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800001701618,fffffd806a18fd00,fffffd807df97800,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800001701618,fffffd807df97800,ffff80003c4313e8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003ac09778,3,ffff80003c431568,e,ffff80003c431620) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff80003ac09778,ffff80003c4316d0,ffff80003c431620) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c4316d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4316d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b3202658e0, count: -15 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c430de0 rbx 0 rdx 0xffff800001457e40 rcx 0xffff80003ac09778 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c430cc0 r9 0x8080808080808080 r10 0x34370fe190db6321 r11 0xbb0fd4b23cd40247 r12 0xfffffd8003f4a8c0 r13 0xfffffd8004732928 r14 0x3 r15 0xffffffff834125a3 substchar+0x3590 rip 0xffffffff8131a855 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c430dd0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=102383 pid=86756 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=0xffff80003ac09a10,0xffff80003ac08d28 process=0xffff8000ffff6688 user=0xffff80003c42c000, vmspace=0xfffffd806f7bc3d8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60494 500164 39413 0 2 0 syz-executor 60494 53054 39413 0 3 0x4000080 fsleep syz-executor 60494 457305 39413 0 2 0x4000000 syz-executor 86756 353675 24733 0 7 0 syz-executor *86756 102383 24733 0 7 0x4000000 syz-executor 15443 65399 43641 60928 2 0x10 syz-executor 15443 288891 43641 60928 2 0x4000010 syz-executor 15443 375719 43641 60928 3 0x4000090 fsleep syz-executor 82199 83060 24924 0 2 0 syz-executor 82199 122923 24924 0 3 0x4000080 fsleep syz-executor 82199 202309 24924 0 3 0x4000080 lockf syz-executor 82199 492188 24924 0 3 0x4000080 fsleep syz-executor 8531 237120 0 0 3 0x14200 acct acct 28239 60270 85190 0 4 0x82000 syz-executor 28239 320800 85190 0 3 0x4082000 biowait syz-executor 28239 68790 85190 0 3 0x4082000 inode syz-executor 28239 202951 85190 0 3 0x4002000 suspend syz-executor 83438 337787 2397 0 3 0x82 nanoslp syz-executor 43641 331910 2397 0 3 0x82 nanoslp syz-executor 85190 280598 2397 0 3 0x82 nanoslp syz-executor 24924 381594 2397 0 3 0x82 nanoslp syz-executor 72650 509227 2397 0 3 0x2 biowait syz-executor 33192 478798 1 0 3 0x100083 ttyopn getty 39413 97617 2397 0 3 0x82 nanoslp syz-executor 70801 95401 2397 0 3 0x82 nanoslp syz-executor 24733 505547 2397 0 3 0x82 nanoslp syz-executor 2397 139781 7675 0 2 0x2 syz-executor 7675 405279 74050 0 3 0x10008a sigsusp ksh 74050 231622 15226 0 3 0x98 kqread sshd-session 15226 316235 93939 0 3 0x92 kqread sshd-session 93939 128536 1 0 3 0x88 kqread sshd 34208 361745 8048 74 3 0x1100092 bpf pflogd 8048 25876 1 0 3 0x80 sbwait pflogd 7727 400824 34798 73 3 0x1100090 kqread syslogd 34798 405362 1 0 3 0x100082 sbwait syslogd 82494 458265 1 0 3 0x100080 kqread resolvd 93316 473829 84012 77 3 0x100092 kqread dhcpleased 66032 14833 84012 77 3 0x100092 kqread dhcpleased 84012 499145 1 0 3 0x80 kqread dhcpleased 83295 281818 0 0 3 0x14200 bored smr 31992 97569 0 0 3 0x14200 pgzero zerothread 17000 454160 0 0 3 0x14200 aiodoned aiodoned 75931 271225 0 0 3 0x14200 syncer update 58177 425067 0 0 3 0x14200 cleaner cleaner 57908 454358 0 0 3 0x14200 reaper reaper 26686 449053 0 0 3 0x14200 pgdaemon pagedaemon 94034 413 0 0 3 0x14200 bored viomb 82284 512407 0 0 3 0x40014200 acpi0 acpi0 9092 113958 0 0 3 0x40014200 idle1 29699 481789 0 0 3 0x14200 bored softnet1 34317 236226 0 0 3 0x14200 bored softnet0 18567 62690 0 0 3 0x14200 bored systqmp 44408 119054 0 0 3 0x14200 bored systq 29144 469626 0 0 3 0x14200 tmoslp softclockmp 24280 315078 0 0 3 0x40014200 tmoslp softclock 50474 258059 0 0 3 0x40014200 idle0 1 283556 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 86756 (syz-executor) thread 0xffff80003ac09778 (102383) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8398a918) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 unp_connect+0x28c sys/kern/uipc_usrreq.c:872 #2 uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 #3 sosend+0x804 sys/kern/uipc_socket.c:-1 #4 sendit+0x5a5 sys/kern/uipc_syscalls.c:785 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800001701800) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e9 sys/kern/uipc_socket.c:639 #4 sendit+0x5a5 sys/kern/uipc_syscalls.c:785 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 28239 (syz-executor) thread 0xffff80003ac09ca8 (320800) exclusive rrwlock inode r = 0 (0xfffffd800d018da8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #9 Xsyscall+0x128 Process 72650 (syz-executor) thread 0xffff80003ac08fb0 (509227) exclusive rrwlock inode r = 0 (0xfffffd806a3caa20) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e9afdb0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10306 11238K 12452K 166960K 18023 0 pcb 17 16K 22K 166960K 852 0 rtable 230 13K 13K 166960K 1136 0 pf 34 17K 25K 166960K 495 0 ifaddr 35 7K 10K 166960K 274 0 ifgroup 47 2K 2K 166960K 513 0 sysctl 4 1K 9K 166960K 33 0 counters 64 36K 38K 166960K 510 0 ioctlops 0 0K 4K 166960K 2461 0 iov 0 0K 24K 166960K 428 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1545 97K 98K 166960K 6124 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 135 0 dirhash 12 2K 3K 166960K 135 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 4064 0 sigio 0 0K 0K 166960K 104 0 proc 72 115K 180K 166960K 1269 0 subproc 72 4K 4K 166960K 182 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 512 0 in_multi 77 5K 7K 166960K 380 0 ether_multi 1 0K 0K 166960K 34 0 mrt 2 0K 0K 166960K 30 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 1047 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 261 152K 170K 166960K 37873 0 UVM aobj 17 12K 14K 166960K 18 0 pinsyscall 42 84K 108K 166960K 5490 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 316 0 NDP 10 0K 2K 166960K 198 0 temp 84 8680K 8840K 166960K 179447 0 kqueue 15 22K 34K 166960K 793 0 SYN cache 2 0K 16K 166960K 4 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 120 436 0 433 4 3 1 3 0 8 0 rtentry 176 334 0 246 6 0 6 6 0 8 0 unpcb 144 3084 0 2937 24 18 6 6 0 8 0 syncache 336 11 0 11 6 6 0 1 0 8 0 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 736 1336 0 1331 22 15 7 7 0 8 6 arp 136 47 0 33 1 0 1 1 0 8 0 inpcb 328 4133 0 4125 25 18 7 12 0 8 6 nd6 152 72 0 49 2 0 2 2 0 8 0 pkpcb 40 20 0 20 7 6 1 1 0 8 1 kcovpl 48 20 0 12 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 1 1 1 0 8 1 ppxss 1192 158 0 158 3 2 1 1 0 8 1 pppxif 1504 24 0 24 5 4 1 1 0 8 1 pfstscr 40 3 0 0 1 0 1 1 0 8 0 pffrag 232 33 0 23 1 0 1 1 0 482 0 pffrnode 88 21 0 13 1 0 1 1 0 8 0 pffrent 40 95 0 85 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 3 0 3 2 2 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 226 0 88 1 0 1 1 0 8 0 pfstkey 128 226 0 88 5 0 5 5 0 8 0 pfstate 448 224 0 88 16 0 16 16 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 rttmr 136 4 0 4 4 4 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1462 0 1071 38 9 29 31 0 8 2 art_table 40 1465 0 1071 5 0 5 5 0 8 0 art_node 32 333 0 254 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 15 1 0 1 1 0 8 0 semupl 112 3 0 3 3 3 0 1 0 8 0 semapl 112 130 0 120 1 0 1 1 0 8 0 shmpl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 100 0 83 3 0 3 3 0 8 0 dino2pl 256 9220 0 7679 97 0 97 97 0 8 0 ffsino 296 9220 0 7679 119 0 119 119 0 8 0 nchpl 144 14646 0 12906 65 0 65 65 0 8 0 rtmask 32 24 0 24 5 4 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 53242 0 53241 4 3 1 1 0 8 0 percpumem 16 270 0 223 1 0 1 1 0 8 0 vcpupl 3968 5 0 0 1 0 1 1 0 8 0 vmpool 840 6 0 1 1 0 1 1 0 8 0 kstatmem 264 318 0 296 7 5 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 20 0 20 6 6 0 1 0 8 0 scxspl 216 77027 0 77025 15 12 3 8 1 8 2 plimitpl 152 891 0 873 1 0 1 1 0 8 0 sigapl 424 4322 0 4274 7 1 6 7 0 8 0 knotepl 120 590 0 0 17 0 17 17 0 8 0 kqueuepl 224 1708 0 1696 15 13 2 5 0 8 1 pipepl 344 637 0 610 6 0 6 6 0 8 3 fdescpl 528 4293 0 4262 3 0 3 3 0 8 0 filepl 160 31405 0 30986 37 19 18 19 0 8 0 lockfpl 104 1715 0 1710 4 2 2 2 0 8 1 lockfspl 48 717 0 713 1 0 1 1 0 8 0 sessionpl 144 42 0 33 1 0 1 1 0 8 0 pgrppl 48 115 0 98 1 0 1 1 0 8 0 ucredpl 104 5583 0 5566 1 0 1 1 0 8 0 zombiepl 144 4476 0 4474 3 2 1 1 0 8 0 processpl 1232 4322 0 4274 6 2 4 5 0 8 0 procpl 664 10751 0 10692 7 0 7 7 0 8 0 sosppl 176 23 0 23 6 5 1 1 0 8 1 sockpl 752 7824 0 7666 63 46 17 18 0 8 1 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 63 0 0 8 1 7 8 0 8 0 mtagpl 96 246 0 0 6 0 6 6 0 8 0 mbufpl 256 2030 0 0 124 0 124 124 0 8 0 bufpl 280 29466 0 23329 439 0 439 439 0 8 0 anonpl 32 12234 0 0 99 0 99 99 0 246 0 amapchunkpl 152 135503 0 134891 71 38 33 36 0 158 6 amappl16 200 18676 0 18458 59 37 22 29 0 8 0 amappl15 192 35 0 35 1 1 0 1 0 8 0 amappl14 184 9 0 9 3 3 0 1 0 8 0 amappl13 176 581 0 579 1 0 1 1 0 8 0 amappl12 168 4744 0 4701 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 49 0 35 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 44 0 41 1 0 1 1 0 8 0 amappl7 128 133 0 131 1 0 1 1 0 8 0 amappl6 120 439 0 424 1 0 1 1 0 8 0 amappl5 112 85 0 73 1 0 1 1 0 8 0 amappl4 104 524 0 494 1 0 1 1 0 8 0 amappl3 96 23343 0 23245 5 1 4 4 0 8 0 amappl2 88 4410 0 4331 2 0 2 2 0 8 0 amappl1 80 26986 0 26396 16 2 14 15 0 8 0 amappl 88 36286 0 36101 5 0 5 5 0 92 0 uvmvnodes 80 200 0 0 5 0 5 5 0 8 0 dma65536 65536 3 0 3 2 2 0 1 0 8 0 dma4096 4096 3 0 3 2 2 0 1 0 8 0 dma1024 1024 4 0 3 1 0 1 1 0 8 0 dma512 512 2 0 2 2 2 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 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 17 0 1 1 0 1 1 0 8 0 uaddrrnd 24 4293 0 4262 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4293 0 4262 1 0 1 1 0 8 0 vmmpekpl 168 32408 0 32350 4 0 4 4 0 8 0 vmmpepl 168 277425 0 275282 136 33 103 107 0 357 1 vmsppl 488 4292 0 4262 7 2 5 5 0 8 0 rwobjpl 80 72711 0 71354 35 3 32 32 0 8 0 pdppl 4096 8605 0 8531 125 49 76 87 0 8 2 pvpl 32 20910 0 0 169 0 169 169 0 265 0 pmappl 256 4298 0 4263 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 480 0 92 12 0 12 12 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(fffffd80784b5118,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd80784b5100,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd80784b5100,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd8069ee09a0,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd8069ee09a0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c431160) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c431160) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800001701618,fffffd807df97800,ffff80003ac09778) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800001701618,fffffd806a18fd00,fffffd807df97800,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800001701618,fffffd807df97800,ffff80003c4313e8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003ac09778,3,ffff80003c431568,e,ffff80003c431620) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff80003ac09778,ffff80003c4316d0,ffff80003c431620) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c4316d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4316d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b3202658e0, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 __mp_lock(ffffffff8398a710) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8398a710) at __mp_lock+0x192 sys/kern/kern_lock.c:165 syscall(ffff80002a398880) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a398880) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d27ab85f570, count: -6