login: witness: lock order reversal: 1st 0xffff800000e126e8 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806b1120a8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff8292c146 -> 0xffffffff828d64a9 is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_enter+0xd1 #1 sblock+0x8a sys/kern/uipc_socket2.c:548 #2 soreceive+0x201 sys/kern/uipc_socket.c:876 #3 fifo_read+0xd2 sys/miscfs/fifofs/fifo_vnops.c:256 #4 VOP_READ+0xc3 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x10a #6 vndsetcred+0x86 sys/dev/vnd.c:684 #7 vndioctl+0xac1 sys/dev/vnd.c:485 #8 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 #10 sys_ioctl+0x4a9 #11 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #11 syscall+0x8cf 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_enter+0xd1 #1 sblock+0x8a sys/kern/uipc_socket2.c:548 #2 sosplice+0x2a7 sys/kern/uipc_socket.c:1385 #3 sys_setsockopt+0x1d7 sys/kern/uipc_syscalls.c:1231 #4 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #4 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Stopped at db_enter+0x1c: 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806b1120a8,9,0) at witness_checkorder+0xc05 rw_enter(fffffd806b112098,1) at rw_enter+0xd1 rrw_enter(fffffd806b112098,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd807989b630,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd807989b630,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002f929ca8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff80002f929ca8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e12540,fffffd806d365c00,ffff8000ffffdc40) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e12540,fffffd8079efa200,fffffd806d365c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e12540,fffffd806d365c00,ffff80002f929f38,0,0,0) at sosend+0x7aa sendit(ffff8000ffffdc40,5,ffff80002f92a0b0,0,ffff80002f92a170) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000ffffdc40,ffff80002f92a220,ffff80002f92a170) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff80002f92a220) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002f92a220) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ed68c5b60, count: -15 ddb{0}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff80002f929900 rbx 0xffffffff828e9404 pp_r600_decoded_lanes+0x2e88d rdx 0xffff800000e08600 rcx 0xffff8000ffffdc40 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff80002f9297e0 r9 0x8080808080808080 r10 0xf80e4c5ac28c1ca1 r11 0xf37db4ccff9bf466 r12 0xfffffd8003b25cf0 r13 0xfffffd800333ddc0 r14 0x3 r15 0xffffffff rip 0xffffffff81cae62c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002f9298f0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) tid=388684 pid=56892 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=77, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff5738,0xffffffff82ea1428 process=0xffff8000ffff1ae8 user=0xffff80002f925000, vmspace=0xfffffd806c388010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56892 255087 24182 0 2 0x8000000 syz-executor.5 *56892 388684 24182 0 7 0xc000000 syz-executor.5 50940 318582 35621 0 2 0x8000000 syz-executor.3 50940 518257 35621 0 2 0xc000000 syz-executor.3 7192 21488 38785 0 2 0x8000000 syz-executor.0 15552 307852 73467 0 7 0x8000000 syz-executor.6 15552 408265 73467 0 3 0xc000080 fsleep syz-executor.6 15552 110269 73467 0 3 0xc000080 fsleep syz-executor.6 9522 366344 11972 0 2 0x8000000 syz-executor.4 9522 335318 11972 0 3 0xc000080 kqsel syz-executor.4 9522 341390 11972 0 3 0xc000080 fsleep syz-executor.4 25364 217019 48353 0 2 0x8000002 syz-executor.7 68315 475732 1 0 3 0x18100083 ttyin getty 38785 458155 48353 0 2 0x8000002 syz-executor.0 41286 178602 0 0 3 0x14200 bored sosplice 24182 68469 48353 0 3 0x8000082 nanoslp syz-executor.5 11972 394144 48353 0 3 0x8000082 nanoslp syz-executor.4 73467 342256 48353 0 3 0x8000082 nanoslp syz-executor.6 31570 200365 48353 0 3 0x8000002 biowait syz-executor.2 35621 272483 48353 0 3 0x8000082 nanoslp syz-executor.3 96701 256911 48353 0 3 0x8000082 nanoslp syz-executor.1 48353 122789 59217 0 3 0x1a000082 wait syz-fuzzer 48353 465858 59217 0 3 0x1e000082 nanoslp syz-fuzzer 48353 111211 59217 0 3 0x1e000082 wait syz-fuzzer 48353 248119 59217 0 3 0x1e000082 wait syz-fuzzer 48353 486810 59217 0 3 0x1e000082 wait syz-fuzzer 48353 463540 59217 0 2 0x1e000002 syz-fuzzer 48353 415709 59217 0 3 0x1e000082 thrsleep syz-fuzzer 48353 463160 59217 0 3 0x1e000082 kqread syz-fuzzer 48353 308474 59217 0 3 0x1e000082 thrsleep syz-fuzzer 48353 193475 59217 0 3 0x1e000082 wait syz-fuzzer 48353 428350 59217 0 3 0x1e000082 thrsleep syz-fuzzer 48353 322399 59217 0 3 0x1e000082 thrsleep syz-fuzzer 48353 403838 59217 0 3 0x1e000082 wait syz-fuzzer 48353 413211 59217 0 3 0x1e000082 wait syz-fuzzer 48353 195906 59217 0 3 0x1e000082 wait syz-fuzzer 59217 68270 10759 0 3 0x810008a sigsusp ksh 10759 510776 91285 0 3 0x1800009a kqread sshd 91285 279800 1 0 3 0x18000088 kqread sshd 56052 345936 15414 73 3 0x19100090 kqread syslogd 15414 329019 1 0 3 0x18100082 sbwait syslogd 96522 302538 1 0 3 0x18100080 kqread resolvd 37413 422773 4513 77 3 0x18100092 kqread dhcpleased 19341 264050 4513 77 3 0x18100092 kqread dhcpleased 4513 448336 1 0 3 0x18000080 kqread dhcpleased 76894 91321 0 0 3 0x14200 bored smr 74981 417906 0 0 2 0x14200 zerothread 73881 387496 0 0 3 0x14200 aiodoned aiodoned 85962 4297 0 0 3 0x14200 syncer update 32992 349221 0 0 3 0x14200 cleaner cleaner 59328 468370 0 0 3 0x14200 reaper reaper 84094 88331 0 0 3 0x14200 pgdaemon pagedaemon 1888 31841 0 0 3 0x14200 bored viomb 4548 142905 0 0 3 0x40014200 acpi0 acpi0 62261 138114 0 0 3 0x40014200 idle1 12643 159947 0 0 3 0x14200 bored softnet3 66641 36646 0 0 3 0x14200 bored softnet2 81387 435306 0 0 3 0x14200 bored softnet1 21231 360101 0 0 3 0x14200 bored softnet0 2583 112830 0 0 3 0x14200 bored systqmp 82396 174429 0 0 3 0x14200 bored systq 70262 202881 0 0 3 0x14200 tmoslp softclockmp 53622 123176 0 0 3 0x40014200 tmoslp softclock 49339 121088 0 0 3 0x40014200 idle0 1 146474 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 56892 (syz-executor.5) thread 0xffff8000ffffdc40 (388684) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dea520) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 unp_connect+0x1c6 sys/kern/uipc_usrreq.c:864 #2 uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 #3 sosend+0x7aa #4 sendit+0x54c sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 #6 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800000e126e8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 sblock+0x8a sys/kern/uipc_socket2.c:548 #3 sosend+0x259 sys/kern/uipc_socket.c:610 #4 sendit+0x54c sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 #6 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 31570 (syz-executor.2) thread 0xffff8000ffff67c8 (200365) exclusive rrwlock inode r = 0 (0xfffffd806b112818) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x1373 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 #11 namei+0x56a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1856 #13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069e065f0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1856 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10194 6441K 6948K 166960K 11734 0 pcb 18 12K 12K 166960K 64 0 rtable 178 7K 8K 166960K 426 0 pf 29 8K 10K 166960K 54 0 ifaddr 35 13K 15K 166960K 57 0 ifgroup 50 2K 2K 166960K 76 0 counters 64 36K 36K 166960K 76 0 ioctlops 0 0K 4K 166960K 1500 0 iov 0 0K 12K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1385 87K 88K 166960K 1627 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 34 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 93K 166960K 361 0 sigio 0 0K 0K 166960K 8 0 proc 64 103K 115K 166960K 575 0 subproc 104 6K 7K 166960K 130 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 50 0 in_multi 66 4K 7K 166960K 128 0 ether_multi 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 434 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 280 77K 96K 166960K 5657 0 UVM aobj 12 4K 4K 166960K 12 0 pinsyscall 36 72K 100K 166960K 1559 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 11 0K 1K 166960K 35 0 temp 52 6798K 6866K 166960K 10571 0 kqueue 12 18K 24K 166960K 51 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 62 0 59 1 0 1 1 0 8 0 rtentry 112 128 0 49 4 0 4 4 0 8 0 unpcb 144 268 0 249 3 1 2 2 0 8 1 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpqe 32 11 0 11 1 1 0 1 0 8 0 tcpcb 808 73 0 67 2 1 1 2 0 8 0 arp 120 22 0 10 1 0 1 1 0 8 0 inpcb 384 272 0 258 3 1 2 3 0 8 0 nd6 136 29 0 12 1 0 1 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 2 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 34 0 4 1 0 1 1 0 8 0 pfstkey 128 34 0 4 1 0 1 1 0 8 0 pfstate 376 34 0 4 3 0 3 3 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 502 0 179 29 3 26 29 0 8 2 art_table 32 503 0 179 4 0 4 4 0 8 0 art_node 16 127 0 55 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 31 0 21 1 0 1 1 0 8 0 shmpl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1979 0 461 96 0 96 96 0 8 0 ffsino 272 1979 0 461 102 0 102 102 0 8 0 nchpl 144 2606 0 867 67 0 67 67 0 8 0 uvmvnodes 80 2275 0 0 47 0 47 47 0 8 0 vnodes 216 2275 0 0 127 0 127 127 0 8 0 namei 1024 9209 0 9208 2 1 1 2 0 8 0 percpumem 16 52 0 6 1 0 1 1 0 8 0 vmpool 696 2 0 2 1 0 1 1 0 8 1 kstatmem 264 34 0 12 2 0 2 2 0 8 0 scxspl 216 9599 0 9598 10 2 8 8 1 8 7 plimitpl 152 68 0 53 1 0 1 1 0 8 0 sigapl 424 673 0 627 7 0 7 7 0 8 0 futexpl 64 4321 0 4318 1 0 1 1 0 8 0 knotepl 120 600 0 0 19 0 19 19 0 8 0 kqueuepl 216 90 0 81 1 0 1 1 0 8 0 pipepl 320 185 0 156 3 0 3 3 0 8 0 fdescpl 496 653 0 626 6 1 5 5 0 8 0 filepl 152 3540 0 3282 11 0 11 11 0 8 0 lockfpl 104 107 0 104 1 0 1 1 0 8 0 lockfspl 48 49 0 46 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 364 0 354 1 0 1 1 0 8 0 zombiepl 144 628 0 627 1 0 1 1 0 8 0 processpl 1144 673 0 627 4 0 4 4 0 8 0 procpl 656 965 0 899 7 0 7 7 0 8 0 srpgc 96 4 0 4 1 1 0 1 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 664 603 0 567 5 0 5 5 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 379 0 0 48 0 48 48 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 399 0 0 25 0 25 25 0 8 0 bufpl 280 5078 0 188 350 0 350 350 0 8 0 anonpl 24 238458 0 232553 65 3 62 62 0 186 23 amapchunkpl 152 18560 0 17911 39 0 39 39 0 158 10 amappl16 200 6390 0 6251 8 0 8 8 0 8 0 amappl15 192 18 0 17 2 1 1 1 0 8 0 amappl14 184 186 0 175 2 1 1 2 0 8 0 amappl13 176 17 0 17 2 2 0 1 0 8 0 amappl12 168 1360 0 1329 3 0 3 3 0 8 0 amappl11 160 66 0 48 1 0 1 1 0 8 0 amappl10 152 73 0 68 1 0 1 1 0 8 0 amappl9 144 384 0 384 2 2 0 1 0 8 0 amappl8 136 157 0 128 2 0 2 2 0 8 0 amappl7 128 58 0 45 1 0 1 1 0 8 0 amappl6 120 326 0 314 2 1 1 2 0 8 0 amappl5 112 171 0 158 1 0 1 1 0 8 0 amappl4 104 566 0 533 2 0 2 2 0 8 0 amappl3 96 3363 0 3283 3 0 3 3 0 8 0 amappl2 88 1054 0 985 4 2 2 4 0 8 0 amappl1 80 10481 0 9997 23 11 12 22 0 8 1 amappl 88 5069 0 4880 6 0 6 6 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 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 655 0 628 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 655 0 628 1 0 1 1 0 8 0 vmmpekpl 168 9914 0 9863 3 0 3 3 0 8 0 vmmpepl 168 62361 0 60521 118 7 111 118 0 357 26 vmsppl 440 654 0 628 4 0 4 4 0 8 0 rwobjpl 56 25095 0 21737 50 2 48 48 0 8 0 pdppl 4096 1317 0 1256 107 42 65 79 0 8 4 pvpl 32 49340 0 0 400 2 398 398 0 265 0 pmappl 248 654 0 628 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 423 0 50 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806b1120a8,9,0) at witness_checkorder+0xc05 rw_enter(fffffd806b112098,1) at rw_enter+0xd1 rrw_enter(fffffd806b112098,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd807989b630,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd807989b630,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002f929ca8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff80002f929ca8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e12540,fffffd806d365c00,ffff8000ffffdc40) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e12540,fffffd8079efa200,fffffd806d365c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e12540,fffffd806d365c00,ffff80002f929f38,0,0,0) at sosend+0x7aa sendit(ffff8000ffffdc40,5,ffff80002f92a0b0,0,ffff80002f92a170) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000ffffdc40,ffff80002f92a220,ffff80002f92a170) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff80002f92a220) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002f92a220) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ed68c5b60, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82dea318) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dea318) at __mp_lock+0x133 sys/kern/kern_lock.c:147 syscall(ffff80002f8ee6b0) at syscall+0x83b mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002f8ee6b0) at syscall+0x83b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x747b7a11c620, count: -7