witness: lock order reversal: 1st 0xffff80000143a480 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806de69f00 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff833fd222 -> 0xffffffff833a5512 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:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:536 #2 soreceive+0x28e sys/kern/uipc_socket.c:882 #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 #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 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #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:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:536 #2 sosplice+0x40d sys/kern/uipc_socket.c:1364 #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:577 #5 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(fffffd806de69f00,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de69ee8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de69ee8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd806013ad88,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806013ad88,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff8000348a7f08) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff8000348a7f08) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff80000143a2c0,fffffd806bcc2900,ffff80003c4d3220) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000143a2c0,fffffd8078fb2100,fffffd806bcc2900,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000143a2c0,fffffd806bcc2900,ffff8000348a8188,0,0,8) at sosend+0x804 sendit(ffff80003c4d3220,3,ffff8000348a8300,8,ffff8000348a83c0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff80003c4d3220,ffff8000348a8470,ffff8000348a83c0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff8000348a8470) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000348a8470) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc6ea16d8140, count: -15 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff8000348a7b80 rbx 0xfffffd800470c608 rdx 0xffff800001437780 rcx 0xffff80003c4d3220 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff8000348a7a60 r9 0x8080808080808080 r10 0x6a48c1fef63e8bae r11 0x8e93e22533bf909d r12 0 r13 0xfffffd8003f24f00 r14 0x3 r15 0xffffffff rip 0xffffffff810240e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000348a7b70 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=10581 pid=81049 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=0xffff8000ffff6f88,0xffff80003c4d22d0 process=0xffff8000ffff8de0 user=0xffff8000348a3000, vmspace=0xfffffd806be7ac90 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97880 391213 1690 0 2 0 syz-executor 81049 181748 20793 0 7 0 syz-executor *81049 10581 20793 0 7 0x4000000 syz-executor 47871 386856 87813 0 2 0 syz-executor 47871 489558 87813 0 3 0x4000080 ttyout syz-executor 96260 334021 37726 0 3 0x80 nanoslp syz-executor 96260 212288 37726 0 3 0x4000080 kqsel syz-executor 96260 120198 37726 0 3 0x4000080 fsleep syz-executor 43203 492945 11732 0 3 0x80 nanoslp syz-executor 43203 255497 11732 0 3 0x4000080 kqsel syz-executor 43203 193833 11732 0 3 0x4000080 fsleep syz-executor 59391 482447 8435 0 3 0x80 nanoslp syz-executor 59391 138799 8435 0 3 0x4000080 sbwait syz-executor 59391 388308 8435 0 3 0x4000080 fsleep syz-executor 41711 385509 26813 0 3 0x80 nanoslp syz-executor 41711 98484 26813 0 3 0x4000080 wsevent_read syz-executor 41711 486672 26813 0 3 0x4000080 fsleep syz-executor 48486 212769 1 0 3 0x82 nanoslp getty 65287 473582 0 0 3 0x14280 nfsidl nfsio 13946 395270 0 0 3 0x14280 nfsidl nfsio 86662 61847 0 0 3 0x14280 nfsidl nfsio 47987 36892 0 0 3 0x14280 nfsidl nfsio 23104 429441 0 0 3 0x14280 nfsidl nfsio 38913 133005 0 0 3 0x14280 nfsidl nfsio 90769 305123 0 0 3 0x14280 nfsidl nfsio 64877 242522 0 0 3 0x14280 nfsidl nfsio 43059 378761 0 0 3 0x14280 nfsidl nfsio 1219 483681 0 0 3 0x14280 nfsidl nfsio 21276 500598 0 0 3 0x14280 nfsidl nfsio 88966 325767 0 0 3 0x14280 nfsidl nfsio 12137 5020 0 0 3 0x14280 nfsidl nfsio 21420 170055 0 0 3 0x14280 nfsidl nfsio 75394 432682 0 0 3 0x14280 nfsidl nfsio 80580 494731 0 0 3 0x14280 nfsidl nfsio 77641 358438 0 0 3 0x14280 nfsidl nfsio 98975 434420 0 0 3 0x14280 nfsidl nfsio 62022 63542 0 0 3 0x14280 nfsidl nfsio 74491 215218 0 0 3 0x14280 nfsidl nfsio 29238 51610 0 0 3 0x14200 bored sosplice 37726 175053 2424 0 3 0x82 nanoslp syz-executor 11926 388133 2424 0 3 0x82 wait syz-executor 87813 506611 2424 0 3 0x82 nanoslp syz-executor 11732 312870 2424 0 3 0x82 nanoslp syz-executor 26813 178302 2424 0 3 0x82 nanoslp syz-executor 8435 331501 2424 0 3 0x82 nanoslp syz-executor 20793 250625 2424 0 3 0x82 nanoslp syz-executor 1690 112376 2424 0 3 0x82 nanoslp syz-executor 2424 488688 40837 0 3 0x82 kqread syz-executor 40837 75085 67748 0 3 0x10008a sigsusp ksh 67748 412626 61917 0 3 0x98 kqread sshd-session 61917 377362 55669 0 3 0x92 kqread sshd-session 55669 34193 1 0 3 0x88 kqread sshd 63561 236977 98994 74 3 0x1100092 bpf pflogd 98994 390829 1 0 3 0x80 sbwait pflogd 41726 223668 67215 73 3 0x1100090 kqread syslogd 67215 404273 1 0 3 0x100082 sbwait syslogd 55278 87626 1 0 3 0x100080 kqread resolvd 68331 127579 60846 77 3 0x100092 kqread dhcpleased 57891 444304 60846 77 3 0x100092 kqread dhcpleased 60846 504655 1 0 3 0x80 kqread dhcpleased 23246 321178 0 0 3 0x14200 bored smr 35150 216647 0 0 3 0x14200 pgzero zerothread 94445 61585 0 0 3 0x14200 aiodoned aiodoned 15330 289929 0 0 3 0x14200 syncer update 62191 128969 0 0 3 0x14200 cleaner cleaner 85861 189745 0 0 3 0x14200 reaper reaper 16800 45402 0 0 3 0x14200 pgdaemon pagedaemon 34340 25017 0 0 3 0x14200 bored viomb 48850 314443 0 0 3 0x40014200 acpi0 acpi0 6441 427774 0 0 3 0x40014200 idle1 51836 257067 0 0 3 0x14200 bored softnet3 712 455721 0 0 3 0x14200 bored softnet2 76936 199821 0 0 3 0x14200 bored softnet1 89266 263690 0 0 2 0x14200 softnet0 57915 313530 0 0 3 0x14200 bored systqmp 95739 478411 0 0 3 0x14200 bored systq 34753 73499 0 0 3 0x14200 tmoslp softclockmp 81909 445680 0 0 3 0x40014200 tmoslp softclock 90618 470572 0 0 3 0x40014200 idle0 1 193443 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 81049 (syz-executor) thread 0xffff80003c4d3220 (10581) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83906af8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 unp_connect+0x26c sys/kern/uipc_usrreq.c:868 #2 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 #3 sosend+0x804 #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:577 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff80000143a480) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e2 sys/kern/uipc_socket.c:631 #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:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10238 11164K 11367K 166960K 12110 0 pcb 18 17K 19K 166960K 170 0 rtable 175 6K 7K 166960K 408 0 pf 31 17K 21K 166960K 103 0 ifaddr 33 5K 7K 166960K 70 0 ifgroup 47 2K 2K 166960K 111 0 sysctl 4 1K 1K 166960K 4 0 counters 60 35K 37K 166960K 116 0 ioctlops 0 0K 4K 166960K 1534 0 iov 0 0K 28K 166960K 47 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 1862 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 22 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 577 0 sigio 0 0K 0K 166960K 3 0 proc 73 91K 140K 166960K 601 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 257 0 in_multi 67 5K 7K 166960K 115 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 443 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 73K 87K 166960K 6989 0 UVM aobj 17 2K 4K 166960K 20 0 pinsyscall 43 86K 104K 166960K 1672 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 21 0 NDP 10 0K 2K 166960K 48 0 temp 49 8637K 8705K 166960K 16133 0 kqueue 13 20K 30K 166960K 119 0 SYN cache 2 10K 18K 166960K 3 0 ddb{1}> 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 67 0 63 1 0 1 1 0 8 0 rtentry 112 126 0 50 4 0 4 4 0 8 0 unpcb 144 693 0 672 9 3 6 6 0 8 5 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpqe 32 2 0 2 2 1 1 1 0 8 1 tcpcb 808 214 0 207 10 5 5 8 0 8 3 arp 120 21 0 5 1 0 1 1 0 8 0 inpcb 376 858 0 839 20 11 9 19 0 8 6 nd6 136 27 0 10 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 19 0 19 1 0 1 1 0 8 1 pppxif 1472 3 0 3 1 0 1 1 0 8 1 pfstscr 40 2 0 2 2 1 1 1 0 8 1 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 1 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 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 66 0 14 1 0 1 1 0 8 0 pfstkey 128 69 0 17 2 0 2 2 0 8 0 pfstate 376 68 0 16 6 0 6 6 0 8 0 pfrule 1344 28 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 547 0 213 31 3 28 31 0 8 3 art_table 32 548 0 213 4 0 4 4 0 8 0 art_node 16 122 0 54 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 17 0 3 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2383 0 883 95 0 95 95 0 8 0 ffsino 280 2383 0 883 109 0 109 109 0 8 0 nchpl 144 3194 0 1503 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 2830 0 0 58 0 58 58 0 8 0 vnodes 216 2830 0 0 158 0 158 158 0 8 0 namei 1024 10607 0 10606 2 1 1 2 0 8 0 percpumem 16 72 0 28 1 0 1 1 0 8 0 kstatmem 264 62 0 42 3 1 2 3 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 9941 0 9941 10 9 1 8 1 8 1 plimitpl 152 138 0 121 1 0 1 1 0 8 0 sigapl 424 900 0 829 11 2 9 9 0 8 0 futexpl 64 7016 0 7012 1 0 1 1 0 8 0 knotepl 120 566 0 0 17 0 17 17 0 8 0 kqueuepl 216 207 0 195 3 1 2 2 0 8 1 pipepl 328 138 0 111 3 0 3 3 0 8 0 fdescpl 504 861 0 829 6 1 5 6 0 8 0 filepl 152 5351 0 5116 17 1 16 16 0 8 5 lockfpl 104 327 0 324 2 1 1 2 0 8 0 lockfspl 48 73 0 70 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 34 0 18 1 0 1 1 0 8 0 ucredpl 104 681 0 668 1 0 1 1 0 8 0 zombiepl 144 830 0 829 1 0 1 1 0 8 0 processpl 1176 900 0 829 7 1 6 6 0 8 0 procpl 656 1717 0 1636 9 1 8 8 0 8 0 srpgc 96 4 0 4 2 1 1 1 0 8 1 sosppl 168 3 0 3 1 1 0 1 0 8 0 sockpl 688 1636 0 1593 34 21 13 20 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 107 0 0 14 0 14 14 0 8 0 mcl2k 2048 27 0 0 4 0 4 4 0 8 0 mtagpl 96 85 0 0 3 0 3 3 0 8 0 mbufpl 256 260 0 0 17 0 17 17 0 8 0 bufpl 280 3062 0 132 210 0 210 210 0 8 0 anonpl 24 135850 0 132230 29 6 23 24 0 184 0 amapchunkpl 152 22251 0 21727 28 0 28 28 0 158 6 amappl16 200 2481 0 2440 6 3 3 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 130 0 118 1 0 1 1 0 8 0 amappl13 176 34 0 34 1 1 0 1 0 8 0 amappl12 168 1501 0 1470 4 1 3 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 135 0 123 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 121 0 111 1 0 1 1 0 8 0 amappl4 104 329 0 311 1 0 1 1 0 8 0 amappl3 96 4263 0 4140 4 0 4 4 0 8 0 amappl2 88 660 0 596 2 0 2 2 0 8 0 amappl1 80 9489 0 8912 14 0 14 14 0 8 0 amappl 88 6594 0 6416 5 0 5 5 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 19 0 3 1 0 1 1 0 8 0 uaddrrnd 24 861 0 829 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 861 0 829 1 0 1 1 0 8 0 vmmpekpl 168 8718 0 8683 3 0 3 3 0 8 0 vmmpepl 168 58283 0 56351 90 1 89 90 0 357 3 vmsppl 456 860 0 829 5 0 5 5 0 8 1 rwobjpl 64 20972 0 17165 62 0 62 62 0 8 0 pdppl 4096 1729 0 1658 99 28 71 87 0 8 0 pvpl 32 11479 0 0 94 1 93 93 0 265 0 pmappl 248 860 0 829 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 291 0 41 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8383aff0) 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(ffffffff839068f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839068f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7d1048b737d0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(fffffd806de69f00,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de69ee8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de69ee8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd806013ad88,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806013ad88,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff8000348a7f08) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff8000348a7f08) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff80000143a2c0,fffffd806bcc2900,ffff80003c4d3220) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000143a2c0,fffffd8078fb2100,fffffd806bcc2900,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000143a2c0,fffffd806bcc2900,ffff8000348a8188,0,0,8) at sosend+0x804 sendit(ffff80003c4d3220,3,ffff8000348a8300,8,ffff8000348a83c0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff80003c4d3220,ffff8000348a8470,ffff8000348a83c0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff8000348a8470) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000348a8470) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc6ea16d8140, count: -15