./file0 /dev/bpfTc>LY; bv=N./file0@ /dev/speaker witness: lock order reversal: 1st 0xffff8000012169a0 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd80796993d8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff830a027e -> 0xffffffff8304f7ef is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_enter+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 soreceive+0x298 sys/kern/uipc_socket.c:877 #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+0xf6 sys/kern/vfs_vnops.c:525 #10 sys_ioctl+0x67c #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xbb6 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+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 sosplice+0x3e3 sys/kern/uipc_socket.c:1386 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1231 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #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:437 witness_checkorder(fffffd80796993d8,9,0) at witness_checkorder+0x1024 rw_enter(fffffd80796993c8,1) at rw_enter+0x122 rrw_enter(fffffd80796993c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd807c60e490,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd807c60e490,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002a0bbe18) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002a0bbe18) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000012167f8,fffffd80635d8d00,ffff8000ffff0cd0) at unp_connect+0x27d sys/kern/uipc_usrreq.c:862 uipc_dgram_send(ffff8000012167f8,fffffd80635d7100,fffffd80635d8d00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:601 sosend(ffff8000012167f8,fffffd80635d8d00,ffff80002a0bc0a8,0,0,0) at sosend+0xa43 sendit(ffff8000ffff0cd0,3,ffff80002a0bc220,0,ffff80002a0bc2e0) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000ffff0cd0,ffff80002a0bc390,ffff80002a0bc2e0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002a0bc390) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0bc390) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdcbe93266c0, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a0bba70 rbx 0xffffffff83061629 pp_r600_decoded_lanes+0x34594 rdx 0 rcx 0xffff8000ffff0cd0 rax 0xffffffff8343eff0 cpu_info_full_primary+0x1ff0 r8 0xffff80002a0bb950 r9 0x8080808080808080 r10 0xe0793143097efb0e r11 0xf6cb65947b2a4fbf r12 0xfffffd800429f3e8 r13 0xfffffd8003ab7dc0 r14 0x3 r15 0xffffffff rip 0xffffffff816cefe5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a0bba60 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=311907 pid=44723 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff2cc8,0xffff8000ffff31e8 process=0xffff8000fffee8a0 user=0xffff80002a0b7000, vmspace=0xfffffd806c6e3388 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21800 191861 1295 0 2 0x8000000 syz-executor 44723 273934 75715 0 7 0x8000000 syz-executor *44723 311907 75715 0 7 0xc000000 syz-executor 92738 489196 26919 0 2 0x8000002 sh 96154 101608 82298 0 3 0xc003000 suspend syz-executor 96154 514847 82298 0 2 0xc081000 syz-executor 81342 281762 32147 0 2 0x8000000 syz-executor 81342 282981 32147 0 2 0xc000000 syz-executor 26919 490819 28955 0 2 0x8000002 syz-executor 94011 8713 64263 0 2 0x8000000 syz-executor 94011 438072 64263 0 3 0xc000080 nanoslp syz-executor 75715 464788 28955 0 3 0x8000082 nanoslp syz-executor 64263 58774 28955 0 3 0x8000082 nanoslp syz-executor 31367 311465 28955 0 3 0x8000002 biowait syz-executor 32147 427386 28955 0 3 0x8000082 nanoslp syz-executor 1295 78336 28955 0 2 0x8000002 syz-executor 82298 91374 28955 0 3 0x8000082 nanoslp syz-executor 35848 327689 66462 0 3 0x18100082 sbwait arp 66462 500017 48215 0 3 0x810008a sigsusp sh 48215 455265 28955 0 3 0x8000082 wait syz-executor 11286 307389 1 0 3 0x18100083 ttyin getty 25294 421284 0 0 3 0x14280 nfsidl nfsio 40800 251723 0 0 3 0x14280 nfsidl nfsio 43246 442732 0 0 3 0x14280 nfsidl nfsio 55859 435778 0 0 3 0x14280 nfsidl nfsio 34836 223838 0 0 3 0x14280 nfsidl nfsio 63297 472694 0 0 3 0x14280 nfsidl nfsio 42256 187228 0 0 3 0x14280 nfsidl nfsio 51986 251000 0 0 3 0x14280 nfsidl nfsio 39482 205179 0 0 3 0x14280 nfsidl nfsio 40319 302527 0 0 3 0x14280 nfsidl nfsio 2129 181658 0 0 3 0x14280 nfsidl nfsio 19635 362345 0 0 3 0x14280 nfsidl nfsio 96982 169123 0 0 3 0x14280 nfsidl nfsio 88787 183957 0 0 3 0x14280 nfsidl nfsio 59544 92363 0 0 3 0x14280 nfsidl nfsio 23916 233503 0 0 3 0x14280 nfsidl nfsio 35404 342757 0 0 3 0x14280 nfsidl nfsio 53233 106035 0 0 3 0x14280 nfsidl nfsio 69061 223687 0 0 3 0x14280 nfsidl nfsio 14259 229423 0 0 3 0x14280 nfsidl nfsio 89560 73658 0 0 3 0x14200 bored sosplice 28955 262075 20876 0 2 0x8000002 syz-executor 20876 484206 49472 0 3 0x810008a sigsusp ksh 49472 467094 15563 0 3 0x18000098 kqread sshd-session 15563 374665 62768 0 3 0x18000092 kqread sshd-session 62768 33740 1 0 3 0x18000088 kqread sshd 40707 487593 46480 74 3 0x19100092 bpf pflogd 46480 456664 1 0 3 0x18000080 sbwait pflogd 69759 437443 81260 73 3 0x19100010 ffs_fsync syslogd 81260 67159 1 0 3 0x18100082 sbwait syslogd 34635 404162 1 0 3 0x18100080 kqread resolvd 285 126754 32987 77 3 0x18100092 kqread dhcpleased 89159 325552 32987 77 3 0x18100092 kqread dhcpleased 32987 84500 1 0 3 0x18000080 kqread dhcpleased 64938 412578 0 0 3 0x14200 bored smr 28401 181595 0 0 3 0x14200 pgzero zerothread 4290 126007 0 0 3 0x14200 aiodoned aiodoned 45233 26402 0 0 3 0x14200 syncer update 28309 234590 0 0 3 0x14200 cleaner cleaner 54504 249920 0 0 3 0x14200 reaper reaper 67297 335343 0 0 3 0x14200 pgdaemon pagedaemon 97312 441698 0 0 3 0x14200 bored viomb 336 310820 0 0 3 0x40014200 acpi0 acpi0 71169 200388 0 0 3 0x40014200 idle1 55902 415137 0 0 3 0x14200 bored softnet3 45860 108437 0 0 3 0x14200 bored softnet2 10305 388813 0 0 3 0x14200 bored softnet1 58546 27714 0 0 3 0x14200 bored softnet0 83739 116893 0 0 3 0x14200 bored systqmp 27298 333443 0 0 3 0x14200 bored systq 3421 303242 0 0 3 0x14200 tmoslp softclockmp 17328 280315 0 0 3 0x40014200 tmoslp softclock 4645 332812 0 0 3 0x40014200 idle0 1 46426 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 44723 (syz-executor) thread 0xffff8000ffff0cd0 (311907) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff834f5130) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 unp_connect+0x26c sys/kern/uipc_usrreq.c:862 #2 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:601 #3 sosend+0xa43 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000012169a0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 sosend+0x2ff sys/kern/uipc_socket.c:611 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 31367 (syz-executor) thread 0xffff8000fffe8040 (311465) exclusive rrwlock inode r = 0 (0xfffffd8079699b48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #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:1856 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806dee52c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #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:1856 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 69759 (syslogd) thread 0xffff8000ffffd960 (437443) exclusive rrwlock inode r = 0 (0xfffffd806e4a41b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2931 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 10186K 10761K 166960K 15674 0 pcb 17 15K 17K 166960K 662 0 rtable 190 14K 15K 166960K 2123 0 pf 38 10K 11K 166960K 200 0 ifaddr 44 15K 16K 166960K 290 0 ifgroup 67 2K 2K 166960K 342 0 sysctl 3 0K 0K 166960K 5 0 counters 70 37K 37K 166960K 214 0 ioctlops 0 0K 4K 166960K 1683 0 iov 0 0K 26K 166960K 321 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1604 101K 101K 166960K 4468 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 16K 24K 166960K 66 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 166 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 93K 166960K 2874 0 sigio 0 0K 0K 166960K 117 0 proc 70 91K 140K 166960K 2192 0 subproc 104 6K 8K 166960K 839 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 330 0 in_multi 82 6K 7K 166960K 741 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 157 705K 705K 166960K 157 0 exec 0 0K 1K 166960K 1732 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 233 76K 107K 166960K 26232 0 UVM aobj 166 8K 8K 166960K 178 0 pinsyscall 44 88K 104K 166960K 5314 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 136 0 NDP 15 0K 2K 166960K 205 0 temp 77 6816K 7312K 166960K 93857 0 kqueue 13 20K 30K 166960K 379 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 120 470 0 466 3 2 1 3 0 8 0 rtentry 112 741 0 661 5 2 3 4 0 8 0 unpcb 144 3507 0 3487 32 27 5 6 0 8 4 syncache 336 3 0 3 2 2 0 1 0 8 0 tcpcb 808 1036 0 1032 33 29 4 8 0 8 3 arp 120 139 0 124 1 0 1 1 0 8 0 inpcb 384 4021 0 4014 49 44 5 12 0 8 4 nd6 136 199 0 180 2 1 1 2 0 8 0 pkpcb 40 143 0 143 8 8 0 2 0 8 0 kcovpl 48 62 0 54 1 0 1 1 0 8 0 ppxss 1168 12 0 12 7 6 1 1 0 8 1 pffrag 232 52 0 47 3 2 1 1 0 482 0 pffrnode 88 51 0 47 3 2 1 1 0 8 0 pffrent 40 102 0 97 3 2 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 24 220 0 182 1 0 1 1 0 8 0 pfstkey 128 220 0 182 3 0 3 3 0 8 0 pfstate 376 220 0 182 7 0 7 7 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2928 0 2550 39 15 24 30 0 8 0 art_table 32 2929 0 2550 4 0 4 4 0 8 0 art_node 16 736 0 664 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 5 2 1 1 1 0 8 0 semapl 112 163 0 153 1 0 1 1 0 8 0 shmpl 112 175 0 12 5 0 5 5 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 5619 0 4009 102 1 101 101 0 8 0 ffsino 272 5619 0 4009 108 0 108 108 0 8 0 nchpl 144 9074 0 7303 67 1 66 66 0 8 0 uvmvnodes 80 6761 0 0 138 0 138 138 0 8 0 vnodes 216 6761 0 0 376 0 376 376 0 8 0 namei 1024 42990 0 42989 6 5 1 2 0 8 0 percpumem 16 121 0 72 1 0 1 1 0 8 0 vcpupl 3904 9 0 2 1 0 1 1 0 8 0 vmpool 696 16 0 9 1 0 1 1 0 8 0 kstatmem 264 174 0 144 4 1 3 3 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 42569 0 42567 20 19 1 8 1 8 0 plimitpl 152 1040 0 1023 1 0 1 1 0 8 0 sigapl 424 3094 0 3023 13 4 9 9 0 8 0 futexpl 64 41085 0 41085 3 2 1 1 0 8 1 knotepl 120 700 0 0 18 0 18 18 0 8 0 kqueuepl 216 1181 0 1172 19 14 5 5 0 8 4 pipepl 320 898 0 870 15 7 8 8 0 8 5 fdescpl 496 3051 0 3019 6 1 5 5 0 8 0 filepl 152 28171 0 27925 58 42 16 20 0 8 5 lockfpl 104 1147 0 1145 2 1 1 2 0 8 0 lockfspl 48 371 0 369 1 0 1 1 0 8 0 sessionpl 144 77 0 68 1 0 1 1 0 8 0 pgrppl 48 168 0 151 1 0 1 1 0 8 0 ucredpl 104 4501 0 4488 1 0 1 1 0 8 0 zombiepl 144 3024 0 3023 1 0 1 1 0 8 0 processpl 1152 3094 0 3023 7 1 6 6 0 8 0 procpl 648 6742 0 6666 9 1 8 8 0 8 0 srpgc 96 14 0 14 5 4 1 1 0 8 1 sosppl 168 10 0 10 6 5 1 1 0 8 1 sockpl 664 8249 0 8218 77 66 11 15 0 8 7 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 277 0 0 30 1 29 30 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 667 0 0 35 0 35 35 0 8 0 bufpl 280 10833 0 4010 488 0 488 488 0 8 0 anonpl 24 416747 0 413248 105 52 53 72 0 185 10 amapchunkpl 152 84806 0 84358 71 39 32 37 0 158 13 amappl16 200 7755 0 7732 78 68 10 19 0 8 8 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 223 0 210 1 0 1 1 0 8 0 amappl13 176 33 0 33 1 1 0 1 0 8 0 amappl12 168 4524 0 4493 3 1 2 2 0 8 0 amappl11 160 59 0 45 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 141 0 141 2 2 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 211 0 198 1 0 1 1 0 8 0 amappl6 120 694 0 691 1 0 1 1 0 8 0 amappl5 112 344 0 332 1 0 1 1 0 8 0 amappl4 104 476 0 454 1 0 1 1 0 8 0 amappl3 96 17210 0 17103 4 0 4 4 0 8 0 amappl2 88 1398 0 1330 2 0 2 2 0 8 0 amappl1 80 19165 0 18554 15 1 14 14 0 8 0 amappl 88 25280 0 25118 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 72 177 0 12 3 0 3 3 0 8 0 uaddrrnd 24 3067 0 3028 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3067 0 3028 1 0 1 1 0 8 0 vmmpekpl 168 27732 0 27678 3 0 3 3 0 8 0 vmmpepl 168 188376 0 186496 143 48 95 100 0 357 9 vmsppl 440 3066 0 3028 8 3 5 5 0 8 0 rwobjpl 56 57858 0 49946 117 3 114 114 0 8 2 pdppl 4096 6141 0 6063 245 165 80 85 0 8 2 pvpl 32 29965 0 0 243 1 242 242 0 265 0 pmappl 248 3066 0 3028 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 618 0 226 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:437 witness_checkorder(fffffd80796993d8,9,0) at witness_checkorder+0x1024 rw_enter(fffffd80796993c8,1) at rw_enter+0x122 rrw_enter(fffffd80796993c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd807c60e490,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd807c60e490,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002a0bbe18) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002a0bbe18) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000012167f8,fffffd80635d8d00,ffff8000ffff0cd0) at unp_connect+0x27d sys/kern/uipc_usrreq.c:862 uipc_dgram_send(ffff8000012167f8,fffffd80635d7100,fffffd80635d8d00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:601 sosend(ffff8000012167f8,fffffd80635d8d00,ffff80002a0bc0a8,0,0,0) at sosend+0xa43 sendit(ffff8000ffff0cd0,3,ffff80002a0bc220,0,ffff80002a0bc2e0) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000ffff0cd0,ffff80002a0bc390,ffff80002a0bc2e0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002a0bc390) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0bc390) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdcbe93266c0, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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(ffffffff834f4f28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834f4f28) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a0c8bf0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c8bf0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7dbcf4384ef0, count: -6