witness: lock order reversal: 1st 0xffff8000015d29d8 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806de164d8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff830be9a1 -> 0xffffffff8306b4aa 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+0x295 sys/kern/uipc_socket.c:945 #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:178 [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+0x3f4 sys/kern/uipc_socket.c:1454 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1228 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [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(fffffd806de164d8,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806de164c8,1) at rw_enter+0x122 rrw_enter(fffffd806de164c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805ddae608,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805ddae608,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002d774758) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002d774758) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000015d2830,fffffd8065ff3d00,ffff8000371e6538) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000015d2830,fffffd807eb7d100,fffffd8065ff3d00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000015d2830,fffffd8065ff3d00,ffff80002d7749e8,0,0,0) at sosend+0xa40 sendit(ffff8000371e6538,3,ffff80002d774b60,0,ffff80002d774c20) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000371e6538,ffff80002d774cd0,ffff80002d774c20) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002d774cd0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002d774cd0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a8b0550e60, count: -15 ddb{0}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff80002d7743b0 rbx 0xfffffd80042c4010 rdx 0xffff800001343e80 rcx 0xffff8000371e6538 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff80002d774290 r9 0x8080808080808080 r10 0xb58394436f96213f r11 0xbdfaaeceab033c41 r12 0 r13 0xfffffd8003adae00 r14 0x3 r15 0xffffffff rip 0xffffffff81610e15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002d7743a0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=203679 pid=5148 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371e7c00,0xffff800029fd9968 process=0xffff8000372a8008 user=0xffff80002d76f000, vmspace=0xfffffd806bd051e8 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 2135 274793 20013 0 3 0 futex syz-executor 2135 158801 20013 0 3 0x4000000 futex syz-executor 71120 297790 54809 0 3 0 futex syz-executor 71120 11780 54809 0 3 0x4000000 futex syz-executor 71120 306639 54809 0 3 0x4000080 fsleep syz-executor 37122 524268 35119 0 3 0 futex syz-executor 37122 35914 35119 0 3 0x4000000 futex syz-executor 37122 179983 35119 0 2 0x4000000 syz-executor 78928 9550 19312 0 3 0 futex syz-executor 78928 299681 19312 0 2 0x4000000 syz-executor 78928 337934 19312 0 3 0x4000080 fsleep syz-executor 48233 67772 7172 0 3 0 futex syz-executor 48233 208197 7172 0 2 0x4000000 syz-executor 48233 463629 7172 0 3 0x4000080 fsleep syz-executor 85831 496465 15725 0 3 0x80 nanoslp syz-executor 85831 162196 15725 0 3 0x4000000 futex syz-executor 85831 13870 15725 0 3 0x4000080 fsleep syz-executor 85831 101693 15725 0 3 0x4000000 futex syz-executor 5148 338519 36472 0 3 0x10 futex syz-executor * 5148 203679 36472 0 7 0x4000010 syz-executor 5148 76056 36472 0 3 0x4000090 fsleep syz-executor 5148 357944 36472 0 3 0x4000090 fsleep syz-executor 62252 36350 39557 0 3 0x80 nanoslp syz-executor 62252 90737 39557 0 3 0x4000080 piperd syz-executor 62252 419677 39557 0 3 0x4000080 fsleep syz-executor 54809 84193 67403 0 3 0x82 nanoslp syz-executor 39154 234970 1 0 3 0x100083 ttyin getty 36472 188004 67403 0 3 0x82 nanoslp syz-executor 78944 385710 0 0 3 0x14280 nfsidl nfsio 415 258866 0 0 3 0x14280 nfsidl nfsio 71243 378317 0 0 3 0x14280 nfsidl nfsio 57681 514219 0 0 3 0x14280 nfsidl nfsio 79990 17192 0 0 3 0x14280 nfsidl nfsio 75723 436992 0 0 3 0x14280 nfsidl nfsio 10491 104591 0 0 3 0x14280 nfsidl nfsio 31573 364946 0 0 3 0x14280 nfsidl nfsio 90498 170083 0 0 3 0x14280 nfsidl nfsio 58317 321883 0 0 3 0x14280 nfsidl nfsio 42010 447433 0 0 3 0x14280 nfsidl nfsio 72141 12777 0 0 3 0x14280 nfsidl nfsio 13036 148826 0 0 3 0x14280 nfsidl nfsio 51780 212122 0 0 3 0x14280 nfsidl nfsio 11701 87191 0 0 3 0x14280 nfsidl nfsio 85043 441860 0 0 3 0x14280 nfsidl nfsio 56526 100985 0 0 3 0x14280 nfsidl nfsio 3292 156067 0 0 3 0x14280 nfsidl nfsio 41837 310327 0 0 3 0x14280 nfsidl nfsio 70064 13311 0 0 3 0x14280 nfsidl nfsio 19312 138098 67403 0 3 0x82 nanoslp syz-executor 7052 369930 0 0 3 0x14200 bored sosplice 20013 140013 67403 0 3 0x82 nanoslp syz-executor 35119 229136 67403 0 3 0x82 nanoslp syz-executor 15725 282198 67403 0 3 0x82 nanoslp syz-executor 7172 195937 67403 0 3 0x82 nanoslp syz-executor 39557 67514 67403 0 3 0x82 nanoslp syz-executor 67403 219412 56550 0 3 0x82 kqread syz-executor 56550 257135 2256 0 3 0x10008a sigsusp ksh 2256 185497 77943 0 3 0x98 kqread sshd-session 77943 239722 70179 0 3 0x92 kqread sshd-session 70179 489669 1 0 3 0x88 kqread sshd 87869 352127 70328 74 3 0x1100092 bpf pflogd 70328 310789 1 0 3 0x80 sbwait pflogd 22801 460934 24978 73 3 0x1100090 kqread syslogd 24978 36832 1 0 3 0x100082 sbwait syslogd 64605 117949 1 0 3 0x100080 kqread resolvd 22240 323514 60794 77 3 0x100092 kqread dhcpleased 9084 283538 60794 77 3 0x100092 kqread dhcpleased 60794 329017 1 0 3 0x80 kqread dhcpleased 16928 267898 0 0 3 0x14200 bored smr 49126 453300 0 0 2 0x14200 zerothread 76149 355786 0 0 3 0x14200 aiodoned aiodoned 78225 76733 0 0 3 0x14200 syncer update 55272 383975 0 0 3 0x14200 cleaner cleaner 9540 487845 0 0 3 0x14200 reaper reaper 80111 304025 0 0 3 0x14200 pgdaemon pagedaemon 3702 431246 0 0 3 0x14200 bored viomb 75690 346131 0 0 3 0x40014200 acpi0 acpi0 2254 106918 0 0 7 0x40014200 idle1 66030 227455 0 0 3 0x14200 bored softnet3 24062 162583 0 0 3 0x14200 bored softnet2 90801 406906 0 0 3 0x14200 bored softnet1 11595 196596 0 0 3 0x14200 bored softnet0 91959 51988 0 0 3 0x14200 bored systqmp 40927 292981 0 0 3 0x14200 bored systq 83980 459090 0 0 3 0x14200 tmoslp softclockmp 90774 263540 0 0 3 0x40014200 tmoslp softclock 10530 88297 0 0 3 0x40014200 idle0 1 190059 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 78928 (syz-executor) thread 0xffff8000371e62b0 (299681) exclusive rwlock futex r = 0 (0xffffffff834c73e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sys_futex+0x69 sys/kern/sys_futex.c:98 #2 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #2 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #3 Xsyscall+0x128 Process 48233 (syz-executor) thread 0xffff8000371e6a48 (208197) exclusive rrwlock inode r = 0 (0xfffffd806ecd22c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:678 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 vn_open+0x13f sys/kern/vfs_vnops.c:140 #12 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 5148 (syz-executor) thread 0xffff8000371e6538 (203679) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8359d538) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 yield+0x6a sys/kern/sched_bsd.c:320 #4 pool_get+0x242 sys/kern/subr_pool.c:589 #5 namei+0xdf sys/kern/vfs_lookup.c:145 #6 unp_connect+0x27d sys/kern/uipc_usrreq.c:868 #7 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 #8 sosend+0xa40 #9 sendit+0x721 sys/kern/uipc_syscalls.c:786 #10 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #11 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000015d29d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:681 #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:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10199 11126K 13734K 166960K 14619 0 pcb 18 18K 19K 166960K 384 0 rtable 212 6K 7K 166960K 659 0 pf 37 18K 22K 166960K 143 0 ifaddr 42 7K 8K 166960K 104 0 ifgroup 55 2K 2K 166960K 163 0 sysctl 4 1K 1K 166960K 6 0 counters 64 36K 36K 166960K 130 0 ioctlops 0 0K 4K 166960K 1745 0 iov 1 2K 24K 166960K 217 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1540 97K 98K 166960K 3083 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 38 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 88 0 dirhash 12 2K 3K 166960K 60 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 93K 166960K 2086 0 sigio 0 0K 0K 166960K 38 0 proc 72 91K 128K 166960K 871 0 subproc 104 6K 6K 166960K 143 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 350 0 in_multi 87 6K 7K 166960K 220 0 ether_multi 1 0K 0K 166960K 16 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 1058 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 269 74K 88K 166960K 21477 0 UVM aobj 131 8K 8K 166960K 137 0 pinsyscall 43 86K 104K 166960K 3320 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 121 0 NDP 12 0K 2K 166960K 72 0 temp 80 6828K 6924K 166960K 84779 0 kqueue 13 20K 30K 166960K 378 0 SYN cache 2 10K 18K 166960K 3 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 120 361 0 358 6 5 1 3 0 8 0 rtentry 112 209 0 113 4 0 4 4 0 8 0 unpcb 144 1977 0 1957 18 16 2 10 0 8 1 syncache 336 19 0 19 5 5 0 1 0 8 0 tcpqe 32 3 0 3 3 3 0 1 0 8 0 tcpcb 808 1083 0 1075 25 20 5 8 0 8 3 arp 120 36 0 16 1 0 1 1 0 8 0 inpcb 336 3274 0 3254 39 31 8 13 0 8 6 nd6 136 51 0 25 2 0 2 2 0 8 0 pkpcb 40 8 0 8 3 3 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1168 17 0 17 4 3 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 27 0 22 1 0 1 1 0 482 0 pffrnode 88 27 0 22 1 0 1 1 0 8 0 pffrent 40 128 0 123 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 4 0 1 1 0 1 1 0 8 0 pfstitem 24 141 0 86 1 0 1 1 0 8 0 pfstkey 128 143 0 88 3 0 3 3 0 8 0 pfstate 376 141 0 87 9 0 9 9 0 8 0 pfrule 1344 30 0 22 2 0 2 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 879 0 432 35 4 31 31 0 8 0 art_table 32 882 0 432 4 0 4 4 0 8 0 art_node 16 202 0 123 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 2 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 83 0 73 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 5016 0 3515 95 0 95 95 0 8 0 ffsino 272 5016 0 3515 102 0 102 102 0 8 0 nchpl 144 8016 0 6323 64 0 64 64 0 8 0 uvmvnodes 80 5927 0 0 121 0 121 121 0 8 0 vnodes 216 5927 0 0 330 0 330 330 0 8 0 namei 1024 30218 0 30217 4 3 1 3 0 8 0 percpumem 16 79 0 33 1 0 1 1 0 8 0 kstatmem 264 90 0 66 2 0 2 2 0 8 0 scsiplug 72 11 0 11 4 4 0 1 0 8 0 scxspl 216 28683 0 28683 21 19 2 8 1 8 2 plimitpl 152 637 0 620 1 0 1 1 0 8 0 sigapl 424 2422 0 2351 10 1 9 9 0 8 0 futexpl 64 30888 0 30880 1 0 1 1 0 8 0 knotepl 120 536 0 0 17 0 17 17 0 8 0 kqueuepl 216 768 0 759 14 10 4 5 0 8 3 pipepl 320 456 0 428 14 11 3 14 0 8 0 fdescpl 496 2378 0 2346 5 0 5 5 0 8 0 filepl 152 18459 0 18200 38 25 13 24 0 8 0 lockfpl 104 1075 0 1073 3 2 1 3 0 8 0 lockfspl 48 311 0 309 1 0 1 1 0 8 0 sessionpl 144 43 0 34 1 0 1 1 0 8 0 pgrppl 48 78 0 61 1 0 1 1 0 8 0 ucredpl 104 2595 0 2581 1 0 1 1 0 8 0 zombiepl 144 2558 0 2558 2 1 1 1 0 8 1 processpl 1160 2422 0 2351 7 1 6 6 0 8 0 procpl 648 5596 0 5508 8 0 8 8 0 8 0 srpgc 96 7 0 7 3 3 0 1 0 8 0 sosppl 168 18 0 18 5 5 0 1 0 8 0 sockpl 664 5660 0 5618 68 58 10 23 0 8 5 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 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 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 29 0 0 4 0 4 4 0 8 0 mtagpl 96 37 0 0 1 0 1 1 0 8 0 mbufpl 256 427 0 0 27 0 27 27 0 8 0 bufpl 280 10248 0 4074 442 0 442 442 0 8 0 anonpl 24 431122 0 421420 176 62 114 114 0 185 28 amapchunkpl 152 70955 0 70263 38 9 29 34 0 158 0 amappl16 200 12024 0 11731 90 54 36 45 0 8 8 amappl15 192 20 0 20 1 1 0 1 0 8 0 amappl14 184 164 0 152 1 0 1 1 0 8 0 amappl13 176 13 0 13 2 2 0 1 0 8 0 amappl12 168 3086 0 3054 3 1 2 2 0 8 0 amappl11 160 64 0 49 1 0 1 1 0 8 0 amappl10 152 18 0 17 2 1 1 1 0 8 0 amappl9 144 159 0 159 2 2 0 1 0 8 0 amappl8 136 29 0 26 1 0 1 1 0 8 0 amappl7 128 160 0 148 1 0 1 1 0 8 0 amappl6 120 211 0 209 1 0 1 1 0 8 0 amappl5 112 174 0 161 1 0 1 1 0 8 0 amappl4 104 405 0 386 1 0 1 1 0 8 0 amappl3 96 12899 0 12788 3 0 3 3 0 8 0 amappl2 88 2822 0 2736 3 0 3 3 0 8 0 amappl1 80 17450 0 16883 16 2 14 16 0 8 0 amappl 88 20824 0 20618 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 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 9 0 9 4 4 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 2378 0 2346 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2378 0 2346 1 0 1 1 0 8 0 vmmpekpl 168 21621 0 21575 3 0 3 3 0 8 0 vmmpepl 168 159147 0 156928 142 23 119 119 0 357 7 vmsppl 448 2377 0 2346 6 2 4 5 0 8 0 rwobjpl 56 52663 0 45365 115 4 111 111 0 8 4 pdppl 4096 4763 0 4692 135 64 71 85 0 8 0 pvpl 32 25308 0 0 204 0 204 204 0 265 0 pmappl 248 2377 0 2346 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 513 0 137 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(fffffd806de164d8,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806de164c8,1) at rw_enter+0x122 rrw_enter(fffffd806de164c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805ddae608,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805ddae608,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002d774758) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002d774758) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff8000015d2830,fffffd8065ff3d00,ffff8000371e6538) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff8000015d2830,fffffd807eb7d100,fffffd8065ff3d00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff8000015d2830,fffffd8065ff3d00,ffff80002d7749e8,0,0,0) at sosend+0xa40 sendit(ffff8000371e6538,3,ffff80002d774b60,0,ffff80002d774c20) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000371e6538,ffff80002d774cd0,ffff80002d774c20) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002d774cd0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002d774cd0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a8b0550e60, 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5