witness: lock order reversal: 1st 0xffff800010fcc290 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806e1aeb80 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff833d1e1a -> 0xffffffff83343bfc 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:870 #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:684 #7 vndioctl+0xdfe 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+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:746 #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+0x3e1 sys/kern/uipc_socket.c:1347 #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:746 #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(fffffd806e1aeb80,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e1aeb68,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e1aeb68,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd805f918a30,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd805f918a30,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c47ce50) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c47ce50) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fcc0a8,fffffd8063fe2500,ffff8000fffefca0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800010fcc0a8,fffffd8063d2e900,fffffd8063fe2500,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800010fcc0a8,fffffd8063fe2500,ffff80003c47d0d8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff8000fffefca0,6,ffff80003c47d258,e,ffff80003c47d310) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff8000fffefca0,ffff80003c47d3c0,ffff80003c47d310) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c47d3c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47d3c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fe03855750, count: -15 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c47cad0 rbx 0 rdx 0xffff800001472180 rcx 0xffff8000fffefca0 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c47c9b0 r9 0x8080808080808080 r10 0x3ee4b5919152727b r11 0x55c4979e9fa5a960 r12 0xfffffd8003ef7680 r13 0xfffffd80046df570 r14 0x3 r15 0xffffffff833dadbe substchar+0xb292 rip 0xffffffff81d6b285 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c47cac0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=249257 pid=8262 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffee018,0xffff80003c43cfd0 process=0xffff800035ff0e90 user=0xffff80003c478000, vmspace=0xfffffd806b7c63f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38332 19310 76926 0 3 0x80 fsleep syz-executor 38332 387263 76926 0 2 0x4000000 syz-executor 8262 162507 37880 0 3 0x80 fsleep syz-executor * 8262 249257 37880 0 7 0x4000000 syz-executor 3324 468200 2653 0 3 0x80 fsleep syz-executor 3324 314427 2653 0 3 0x4000080 kqread syz-executor 9936 219213 43706 0 3 0x80 fsleep syz-executor 9936 132877 43706 0 3 0x4000080 kqread syz-executor 9936 388174 43706 0 3 0x4000080 fsleep syz-executor 9936 114357 43706 0 3 0x4000080 fsleep syz-executor 44986 127385 52524 0 3 0x80 fsleep syz-executor 44986 292867 52524 0 3 0x4000080 ttyin syz-executor 24471 51670 41620 0 3 0x82 wait syz-executor 32264 265894 0 0 3 0x14280 nfsidl nfsio 29205 490501 0 0 3 0x14280 nfsidl nfsio 59677 266981 1 0 3 0x100083 ttyin getty 49633 470274 0 0 3 0x14200 acct acct 42242 299206 41620 0 3 0x82 nanoslp syz-executor 53382 241622 0 0 3 0x14200 bored sosplice 32592 329478 41620 0 3 0x82 wait syz-executor 43706 127913 41620 0 3 0x82 nanoslp syz-executor 52524 367459 41620 0 3 0x82 nanoslp syz-executor 37880 20166 41620 0 3 0x82 nanoslp syz-executor 2653 197037 41620 0 3 0x82 nanoslp syz-executor 76926 5288 41620 0 3 0x82 nanoslp syz-executor 41620 87564 27802 0 3 0x82 kqread syz-executor 27802 114932 29271 0 3 0x10008a sigsusp ksh 29271 187811 50766 0 3 0x98 kqread sshd-session 50766 144283 96133 0 3 0x92 kqread sshd-session 96133 293178 1 0 3 0x88 kqread sshd 60369 481375 70755 74 3 0x1100092 bpf pflogd 70755 60577 1 0 3 0x80 sbwait pflogd 73851 194507 32086 73 3 0x1100090 kqread syslogd 32086 482971 1 0 3 0x100082 sbwait syslogd 29243 343894 1 0 3 0x100080 kqread resolvd 91533 396461 15333 77 3 0x100092 kqread dhcpleased 45918 446436 15333 77 3 0x100092 kqread dhcpleased 15333 133852 1 0 3 0x80 kqread dhcpleased 32723 122641 0 0 3 0x14200 bored smr 89248 173423 0 0 3 0x14200 pgzero zerothread 90999 441034 0 0 3 0x14200 aiodoned aiodoned 72613 120212 0 0 3 0x14200 syncer update 23242 321255 0 0 3 0x14200 cleaner cleaner 62723 323241 0 0 3 0x14200 reaper reaper 18773 55498 0 0 3 0x14200 pgdaemon pagedaemon 70254 107499 0 0 3 0x14200 bored viomb 56783 174336 0 0 3 0x40014200 acpi0 acpi0 17179 183339 0 0 3 0x40014200 idle1 96367 338767 0 0 3 0x14200 bored softnet1 36163 245216 0 0 2 0x14200 softnet0 700 469129 0 0 3 0x14200 bored systqmp 62295 11842 0 0 3 0x14200 bored systq 78554 238729 0 0 3 0x14200 tmoslp softclockmp 79717 75140 0 0 3 0x40014200 tmoslp softclock 56541 413550 0 0 3 0x40014200 idle0 1 1784 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 8262 (syz-executor) thread 0xffff8000fffefca0 (249257) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83929028) #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:746 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fcc290) #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:631 #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:746 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10232 11052K 12332K 166960K 12736 0 pcb 17 18K 20K 166960K 472 0 rtable 181 9K 9K 166960K 589 0 pf 32 17K 18K 166960K 231 0 ifaddr 33 6K 8K 166960K 162 0 ifgroup 51 2K 2K 166960K 303 0 sysctl 4 1K 9K 166960K 21 0 counters 66 36K 37K 166960K 462 0 ioctlops 0 0K 4K 166960K 2131 0 iov 0 0K 28K 166960K 132 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1416 89K 89K 166960K 2503 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 624K 166960K 40 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 73 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 2163 0 sigio 0 0K 0K 166960K 65 0 proc 73 131K 164K 166960K 887 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 288 0 in_multi 59 4K 7K 166960K 217 0 ether_multi 1 0K 0K 166960K 19 0 mrt 0 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 813 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 243 176K 199K 166960K 21199 0 UVM aobj 47 2K 2K 166960K 52 0 pinsyscall 42 84K 106K 166960K 3429 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 108 0 NDP 11 0K 2K 166960K 122 0 temp 76 8652K 8748K 166960K 120604 0 kqueue 15 24K 32K 166960K 440 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 301 0 298 4 2 2 3 0 8 1 rtentry 176 182 0 113 5 0 5 5 0 8 0 unpcb 144 1606 0 1585 17 10 7 11 0 8 6 syncache 336 13 0 13 4 4 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 736 880 0 874 28 26 2 10 0 8 0 arp 136 21 0 10 1 0 1 1 0 8 0 inpcb 328 2694 0 2682 39 34 5 13 0 8 3 nd6 152 34 0 19 1 0 1 1 0 8 0 pkpcb 40 19 0 19 4 4 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1192 166 0 166 3 2 1 1 0 8 1 pppxif 1504 12 0 12 4 4 0 1 0 8 0 pffrag 232 8 0 3 1 0 1 1 0 482 0 pffrnode 88 8 0 3 1 0 1 1 0 8 0 pffrent 40 21 0 15 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 pfstitem 24 118 0 70 1 0 1 1 0 8 0 pfstkey 128 118 0 70 2 0 2 2 0 8 0 pfstate 384 118 0 70 6 0 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 851 0 572 29 7 22 28 0 8 0 art_table 40 853 0 572 5 0 5 5 0 8 0 art_node 32 180 0 122 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 67 0 57 1 0 1 1 0 8 0 shmpl 112 49 0 5 2 0 2 2 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 5527 0 4015 95 0 95 95 0 8 0 ffsino 296 5527 0 4015 117 0 117 117 0 8 0 nchpl 144 8514 0 6814 64 0 64 64 0 8 0 rtmask 32 24 0 24 4 3 1 1 0 8 1 uvmvnodes 80 5893 0 0 121 0 121 121 0 8 0 vnodes 216 5893 0 0 328 0 328 328 0 8 0 namei 1024 30685 0 30684 1 0 1 1 0 8 0 percpumem 16 246 0 198 1 0 1 1 0 8 0 kstatmem 264 194 0 170 4 2 2 3 0 8 0 scsiplug 72 11 0 11 6 5 1 1 0 8 1 scxspl 216 55296 0 55296 16 15 1 8 1 8 1 plimitpl 152 544 0 525 1 0 1 1 0 8 0 sigapl 424 2502 0 2450 9 2 7 8 0 8 0 knotepl 120 1054 0 0 32 0 32 32 0 8 0 kqueuepl 224 946 0 935 12 11 1 5 0 8 0 pipepl 344 514 0 487 15 12 3 9 0 8 0 fdescpl 528 2445 0 2414 3 0 3 3 0 8 0 filepl 160 17569 0 17313 44 27 17 21 0 8 4 lockfpl 104 1327 0 1325 3 2 1 2 0 8 0 lockfspl 48 381 0 379 1 0 1 1 0 8 0 sessionpl 144 39 0 30 1 0 1 1 0 8 0 pgrppl 48 86 0 69 1 0 1 1 0 8 0 ucredpl 104 2734 0 2720 1 0 1 1 0 8 0 zombiepl 144 2453 0 2450 1 0 1 1 0 8 0 processpl 1232 2502 0 2450 6 1 5 6 0 8 0 procpl 664 5863 0 5804 7 1 6 7 0 8 0 sosppl 168 11 0 11 4 4 0 1 0 8 0 sockpl 752 4676 0 4640 71 60 11 30 0 8 7 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1136 0 0 71 0 71 71 0 8 0 bufpl 280 23280 0 17136 440 0 440 440 0 8 0 anonpl 32 15681 0 0 128 1 127 127 0 246 0 amapchunkpl 152 73203 0 72689 46 20 26 33 0 158 3 amappl16 200 9204 0 9163 102 90 12 40 0 8 5 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 159 0 147 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 3177 0 3145 2 0 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 6 0 5 1 0 1 1 0 8 0 amappl9 144 317 0 317 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 133 0 120 1 0 1 1 0 8 0 amappl6 120 239 0 235 1 0 1 1 0 8 0 amappl5 112 143 0 133 1 0 1 1 0 8 0 amappl4 104 343 0 321 1 0 1 1 0 8 0 amappl3 96 12803 0 12705 4 1 3 3 0 8 0 amappl2 88 2754 0 2675 2 0 2 2 0 8 0 amappl1 80 19321 0 18721 18 3 15 16 0 8 0 amappl 88 20033 0 19864 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 3 0 3 3 2 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 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 51 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2445 0 2414 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2445 0 2414 1 0 1 1 0 8 0 vmmpekpl 168 21377 0 21326 3 0 3 3 0 8 0 vmmpepl 168 159945 0 157933 141 40 101 123 0 357 0 vmsppl 488 2444 0 2413 6 1 5 5 0 8 0 rwobjpl 80 49056 0 42167 141 0 141 141 0 8 0 pdppl 4096 4898 0 4826 132 58 74 88 0 8 2 pvpl 32 23133 0 0 191 5 186 187 0 265 0 pmappl 256 2444 0 2413 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 401 0 101 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff837b5ff0) 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(ffffffff83928e20) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83928e20) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a3adc80,ffff800000069c00) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83928e20) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83928e20) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83928e20) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83928e20) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff80003c43cfc0,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c43cfc0,ffff80002a3ae090,ffff80002a3adfe0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3ae090) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3ae090) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x740aae821ff0, count: -15 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(fffffd806e1aeb80,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e1aeb68,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e1aeb68,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd805f918a30,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd805f918a30,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c47ce50) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c47ce50) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fcc0a8,fffffd8063fe2500,ffff8000fffefca0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800010fcc0a8,fffffd8063d2e900,fffffd8063fe2500,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800010fcc0a8,fffffd8063fe2500,ffff80003c47d0d8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff8000fffefca0,6,ffff80003c47d258,e,ffff80003c47d310) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff8000fffefca0,ffff80003c47d3c0,ffff80003c47d310) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c47d3c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47d3c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fe03855750, count: -15