witness: lock order reversal: 1st 0xffff8000012f0218 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806de0d2e8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83120c01 -> 0xffffffff830cf67f 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:537 #2 soreceive+0x28e sys/kern/uipc_socket.c:876 #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:537 #2 sosplice+0x40d sys/kern/uipc_socket.c:1358 #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:437 witness_checkorder(fffffd806de0d2e8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de0d2d0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de0d2d0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd807b547cf8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd807b547cf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003a572848) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003a572848) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000012f0058,fffffd80611e9300,ffff8000ffff8530) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000012f0058,fffffd806cb86b00,fffffd80611e9300,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000012f0058,fffffd80611e9300,ffff80003a572ac8,0,0,0) at sosend+0x804 sendit(ffff8000ffff8530,3,ffff80003a572c40,0,ffff80003a572d00) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff8000ffff8530,ffff80003a572db0,ffff80003a572d00) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003a572db0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a572db0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d2a24f22e0, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003a5724c0 rbx 0xfffffd8004340780 rdx 0 rcx 0xffff8000ffff8530 rax 0xffff800029b5bff0 r8 0xffff80003a5723a0 r9 0x8080808080808080 r10 0xcdadc7eb973c3d59 r11 0xf66d8b0d57e7059a r12 0 r13 0xfffffd8003b56f00 r14 0x3 r15 0xffffffff rip 0xffffffff82a6fbd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003a5724b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=23655 pid=85474 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=0xffff8000ffff8f50,0xffff8000ffff8a50 process=0xffff80002f15a6d8 user=0xffff80003a56d000, vmspace=0xfffffd806eca3ab8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65975 317161 83985 0 2 0 syz-executor 89609 395516 61660 0 2 0 syz-executor 89609 172795 61660 0 3 0x4000080 fsleep syz-executor 85474 413067 17625 0 7 0 syz-executor *85474 23655 17625 0 7 0x4000000 syz-executor 31588 350699 8452 0 3 0x80 nanoslp syz-executor 31588 272814 8452 0 3 0x4000080 fsleep syz-executor 31588 443427 8452 0 3 0x4000080 bell syz-executor 31588 434607 8452 0 3 0x4000080 fsleep syz-executor 92663 210817 86953 0 3 0x80 nanoslp syz-executor 92663 264011 86953 0 3 0x4000080 kqpoll syz-executor 92663 108317 86953 0 3 0x4000080 fsleep syz-executor 61660 147556 12858 0 3 0x82 nanoslp syz-executor 67726 37493 0 0 3 0x14200 acct acct 17625 203240 12858 0 3 0x82 nanoslp syz-executor 18178 175399 0 0 3 0x14200 bored sosplice 83985 87806 12858 0 3 0x82 nanoslp syz-executor 31985 280404 12858 0 3 0x2 biowait syz-executor 86953 268199 12858 0 3 0x82 nanoslp syz-executor 47939 286769 12858 0 2 0x2 syz-executor 16066 491992 12858 0 3 0x2 biowait syz-executor 8452 339036 12858 0 3 0x82 nanoslp syz-executor 12858 222324 68486 0 3 0x82 kqread syz-executor 68486 122539 124 0 3 0x10008a sigsusp ksh 124 68607 38136 0 3 0x98 kqread sshd-session 38136 405428 19067 0 3 0x92 kqread sshd-session 5998 20589 1 0 3 0x100083 ttyopn getty 19067 461484 1 0 3 0x88 kqread sshd 33764 407931 66414 74 3 0x1100092 bpf pflogd 66414 11231 1 0 3 0x80 sbwait pflogd 22613 270464 94505 73 3 0x1100090 kqread syslogd 94505 33685 1 0 3 0x100082 sbwait syslogd 99751 267051 1 0 3 0x100080 kqread resolvd 70872 230288 56856 77 3 0x100092 kqread dhcpleased 80052 127022 56856 77 3 0x100092 kqread dhcpleased 56856 259389 1 0 3 0x80 kqread dhcpleased 53781 64748 0 0 3 0x14200 bored smr 74666 352391 0 0 3 0x14200 pgzero zerothread 50063 504459 0 0 3 0x14200 aiodoned aiodoned 88949 216411 0 0 3 0x14200 syncer update 34641 362214 0 0 3 0x14200 cleaner cleaner 51722 296249 0 0 3 0x14200 reaper reaper 59740 170011 0 0 3 0x14200 pgdaemon pagedaemon 58109 367570 0 0 3 0x14200 bored viomb 90130 507953 0 0 3 0x40014200 acpi0 acpi0 55359 459731 0 0 3 0x40014200 idle1 59370 212401 0 0 3 0x14200 bored softnet3 90903 180169 0 0 3 0x14200 bored softnet2 84426 500543 0 0 3 0x14200 bored softnet1 28799 464298 0 0 2 0x14200 softnet0 48923 387507 0 0 3 0x14200 bored systqmp 48045 313571 0 0 3 0x14200 bored systq 22475 313614 0 0 3 0x14200 tmoslp softclockmp 67817 318757 0 0 3 0x40014200 tmoslp softclock 71157 463730 0 0 3 0x40014200 idle0 1 355683 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 85474 (syz-executor) thread 0xffff8000ffff8530 (23655) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8360db10) #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 (0xffff8000012f0218) #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:537 #3 sosend+0x2e2 sys/kern/uipc_socket.c:625 #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 Process 31985 (syz-executor) thread 0xffff8000ffffdbe0 (280404) exclusive rrwlock inode r = 0 (0xfffffd806de8e628) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3102 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c3df1f0) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3087 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 16066 (syz-executor) thread 0xffff80002a44cf48 (491992) exclusive rrwlock inode r = 0 (0xfffffd80786a2aa0) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cfc8cd8) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 11031K 11410K 166960K 12044 0 pcb 17 14K 16K 166960K 253 0 rtable 188 5K 6K 166960K 479 0 pf 34 17K 18K 166960K 78 0 ifaddr 38 6K 7K 166960K 64 0 ifgroup 51 2K 2K 166960K 81 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1579 0 iov 0 0K 16K 166960K 62 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1406 88K 89K 166960K 2008 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 21 3K 3K 166960K 71 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 765 0 sigio 0 0K 0K 166960K 10 0 proc 72 91K 164K 166960K 653 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 86 0 in_multi 85 6K 6K 166960K 149 0 ether_multi 1 0K 0K 166960K 8 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 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 536 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 213 72K 86K 166960K 8676 0 UVM aobj 85 4K 6K 166960K 88 0 pinsyscall 41 82K 106K 166960K 1950 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 35 0 NDP 11 0K 1K 166960K 40 0 temp 58 6895K 7019K 166960K 26803 0 kqueue 14 22K 30K 166960K 142 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 111 0 108 2 1 1 2 0 8 0 rtentry 112 152 0 65 3 0 3 3 0 8 0 unpcb 144 484 0 464 4 2 2 4 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 808 360 0 354 10 2 8 8 0 8 7 arp 120 27 0 11 1 0 1 1 0 8 0 inpcb 376 1117 0 1105 20 9 11 15 0 8 9 nd6 136 32 0 9 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1168 4 0 4 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 3 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 55 0 10 1 0 1 1 0 8 0 pfstkey 128 58 0 13 2 0 2 2 0 8 0 pfstate 376 57 0 12 6 0 6 6 0 8 0 pfrule 1344 57 0 51 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 601 0 222 27 3 24 27 0 8 0 art_table 32 602 0 222 4 0 4 4 0 8 0 art_node 16 146 0 70 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 2 1 1 1 0 8 1 semapl 112 64 0 45 1 0 1 1 0 8 0 shmpl 112 85 0 3 3 0 3 3 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 2830 0 1320 95 0 95 95 0 8 0 ffsino 280 2830 0 1320 109 0 109 109 0 8 0 nchpl 144 3872 0 2178 64 0 64 64 0 8 0 uvmvnodes 80 3233 0 0 66 0 66 66 0 8 0 vnodes 216 3233 0 0 180 0 180 180 0 8 0 namei 1024 14357 0 14355 2 1 1 2 0 8 0 percpumem 16 54 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scsiplug 72 10 0 10 2 1 1 1 0 8 1 scxspl 216 11181 0 11179 11 3 8 8 1 8 7 plimitpl 152 195 0 178 1 0 1 1 0 8 0 sigapl 424 1077 0 1027 7 1 6 7 0 8 0 futexpl 64 9810 0 9806 1 0 1 1 0 8 0 knotepl 120 315 0 0 10 0 10 10 0 8 0 kqueuepl 216 342 0 332 3 0 3 3 0 8 2 pipepl 328 189 0 162 6 0 6 6 0 8 3 fdescpl 504 1056 0 1026 6 1 5 6 0 8 0 filepl 152 7598 0 7376 21 3 18 18 0 8 8 lockfpl 104 280 0 278 1 0 1 1 0 8 0 lockfspl 48 114 0 112 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 1829 0 1816 1 0 1 1 0 8 0 zombiepl 144 1028 0 1027 1 0 1 1 0 8 0 processpl 1168 1077 0 1027 5 1 4 5 0 8 0 procpl 648 2085 0 2028 6 0 6 6 0 8 0 srpgc 96 9 0 9 2 1 1 1 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 688 1764 0 1729 17 5 12 15 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 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 108 0 0 14 0 14 14 0 8 0 mcl2k 2048 36 0 0 5 0 5 5 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 279 0 0 18 0 18 18 0 8 0 bufpl 280 4532 0 133 315 0 315 315 0 8 0 anonpl 24 168761 0 165423 56 7 49 54 0 185 20 amapchunkpl 152 27734 0 27285 27 1 26 27 0 158 5 amappl16 200 3577 0 3545 22 8 14 20 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1750 0 1720 4 2 2 3 0 8 0 amappl11 160 76 0 62 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 117 0 104 1 0 1 1 0 8 0 amappl6 120 213 0 210 1 0 1 1 0 8 0 amappl5 112 131 0 121 1 0 1 1 0 8 0 amappl4 104 353 0 333 1 0 1 1 0 8 0 amappl3 96 5427 0 5322 4 0 4 4 0 8 0 amappl2 88 732 0 667 2 0 2 2 0 8 0 amappl1 80 10592 0 10027 14 0 14 14 0 8 0 amappl 88 8212 0 8055 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 128 255 0 255 3 2 1 1 0 8 1 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 87 0 3 2 0 2 2 0 8 0 uaddrrnd 24 1056 0 1026 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1056 0 1026 1 0 1 1 0 8 0 vmmpekpl 168 10211 0 10172 3 0 3 3 0 8 0 vmmpepl 168 70867 0 69064 95 0 95 95 0 357 10 vmsppl 456 1055 0 1026 5 0 5 5 0 8 0 rwobjpl 64 24862 0 20624 70 0 70 70 0 8 0 pdppl 4096 2119 0 2052 117 44 73 87 0 8 6 pvpl 32 16704 0 0 135 0 135 135 0 265 0 pmappl 248 1055 0 1026 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 310 0 54 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(ffffffff834ccff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8360d908) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360d908) at __mp_lock+0x199 sys/kern/kern_lock.c:144 intr_handler(ffff80002f156740,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8360d908) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360d908) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002f1568b0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x73e82428e6f0, count: -10 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:437 witness_checkorder(fffffd806de0d2e8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de0d2d0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de0d2d0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd807b547cf8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd807b547cf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003a572848) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003a572848) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000012f0058,fffffd80611e9300,ffff8000ffff8530) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000012f0058,fffffd806cb86b00,fffffd80611e9300,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000012f0058,fffffd80611e9300,ffff80003a572ac8,0,0,0) at sosend+0x804 sendit(ffff8000ffff8530,3,ffff80003a572c40,0,ffff80003a572d00) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff8000ffff8530,ffff80003a572db0,ffff80003a572d00) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003a572db0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a572db0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d2a24f22e0, count: -15