witness: lock order reversal: 1st 0xffff800000e4a998 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806e9496f8 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(fffffd806e9496f8,9,0) at witness_checkorder+0xc05 rw_enter(fffffd806e9496e8,1) at rw_enter+0xd1 rrw_enter(fffffd806e9496e8,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd8052269c10,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd8052269c10,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff800032f6ede8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff800032f6ede8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e4a7f0,fffffd807f002c00,ffff80002a2e07f0) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e4a7f0,fffffd806d084400,fffffd807f002c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e4a7f0,fffffd807f002c00,ffff800032f6f078,0,0,0) at sosend+0x7aa sendit(ffff80002a2e07f0,5,ffff800032f6f1f0,0,ffff800032f6f2b0) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff80002a2e07f0,ffff800032f6f360,ffff800032f6f2b0) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff800032f6f360) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff800032f6f360) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72364f4f3a0, count: -15 ddb{0}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff800032f6ea40 rbx 0xffffffff828e9404 pp_r600_decoded_lanes+0x2e88d rdx 0xffff800000dfdb80 rcx 0xffff80002a2e07f0 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff800032f6e920 r9 0x8080808080808080 r10 0x79d68ef2cf7452c8 r11 0xac2bd676313545ce r12 0xfffffd8003b264e8 r13 0xfffffd800333ddc0 r14 0x3 r15 0xffffffff rip 0xffffffff81cae62c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800032f6ea30 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) tid=368648 pid=25170 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2e1750,0xffffffff82ea1428 process=0xffff80002a28dae8 user=0xffff800032f6a000, vmspace=0xfffffd80621b36e8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25170 266083 33426 0 7 0x8000000 syz-executor.1 *25170 368648 33426 0 7 0xc000000 syz-executor.1 22661 182786 53941 0 3 0x8000080 nanoslp syz-executor.3 22661 359770 53941 0 3 0xc000080 ttyin syz-executor.3 2117 193973 30222 0 3 0x8000080 nanoslp syz-executor.7 2117 205987 30222 0 3 0xc000080 piperd syz-executor.7 97905 260752 97013 0 3 0x8000080 nanoslp syz-executor.6 97905 252943 97013 0 3 0xc000080 kqsel syz-executor.6 97905 53923 97013 0 3 0xc000080 kqsel syz-executor.6 97905 197426 97013 0 3 0xc000080 ttyin syz-executor.6 30222 75856 77962 0 3 0x8000082 nanoslp syz-executor.7 4593 241118 77962 0 3 0x8000082 nanoslp syz-executor.4 53941 68492 77962 0 3 0x8000082 nanoslp syz-executor.3 71421 48013 0 0 3 0x14200 acct acct 97013 59449 77962 0 3 0x8000082 nanoslp syz-executor.6 74319 35562 1 0 3 0x18100083 ttyin getty 84600 257565 77962 0 3 0x8000082 wait syz-executor.2 91849 307 77962 0 3 0x8000082 nanoslp syz-executor.5 33426 441663 77962 0 3 0x8000082 nanoslp syz-executor.1 39889 321932 77962 0 3 0x8000082 wait syz-executor.0 5952 18955 1 0 3 0x8000080 fsleep syz-executor.1 5952 120366 1 0 3 0xc000080 kqsel syz-executor.1 39364 144640 1 0 3 0x8000080 fsleep syz-executor.1 39364 113983 1 0 3 0xc000080 sbwait syz-executor.1 36108 490682 0 0 3 0x14280 nfsidl nfsio 54849 163303 0 0 3 0x14280 nfsidl nfsio 33169 9563 0 0 3 0x14280 nfsidl nfsio 50681 387003 0 0 3 0x14280 nfsidl nfsio 84668 133607 0 0 3 0x14280 nfsidl nfsio 71128 4484 0 0 3 0x14280 nfsidl nfsio 35818 390548 0 0 3 0x14280 nfsidl nfsio 70144 205348 0 0 3 0x14280 nfsidl nfsio 42406 484448 0 0 3 0x14280 nfsidl nfsio 17571 320348 0 0 3 0x14280 nfsidl nfsio 60511 123829 0 0 3 0x14280 nfsidl nfsio 64398 357895 0 0 3 0x14280 nfsidl nfsio 14869 46919 0 0 3 0x14280 nfsidl nfsio 50618 9339 0 0 3 0x14280 nfsidl nfsio 94718 420808 0 0 3 0x14280 nfsidl nfsio 56434 203087 0 0 3 0x14280 nfsidl nfsio 36401 203878 0 0 3 0x14280 nfsidl nfsio 74855 2120 0 0 3 0x14280 nfsidl nfsio 23653 240879 0 0 3 0x14280 nfsidl nfsio 51403 263804 0 0 3 0x14280 nfsidl nfsio 43575 214460 0 0 3 0x14200 bored sosplice 77962 449780 15775 0 3 0x1a000082 thrsleep syz-fuzzer 77962 486921 15775 0 3 0x1e000082 nanoslp syz-fuzzer 77962 162244 15775 0 3 0x1e000082 wait syz-fuzzer 77962 462246 15775 0 3 0x1e000082 thrsleep syz-fuzzer 77962 273151 15775 0 3 0x1e000082 thrsleep syz-fuzzer 77962 516604 15775 0 3 0x1e000082 wait syz-fuzzer 77962 39812 15775 0 3 0x1e000082 wait syz-fuzzer 77962 424207 15775 0 3 0x1e000082 wait syz-fuzzer 77962 115329 15775 0 3 0x1e000082 thrsleep syz-fuzzer 77962 258098 15775 0 3 0x1e000082 wait syz-fuzzer 77962 31557 15775 0 3 0x1e000082 thrsleep syz-fuzzer 77962 522961 15775 0 3 0x1e000082 thrsleep syz-fuzzer 77962 369498 15775 0 3 0x1e000082 wait syz-fuzzer 77962 335597 15775 0 3 0x1e000082 wait syz-fuzzer 77962 420024 15775 0 3 0x1e000082 kqread syz-fuzzer 77962 173525 15775 0 3 0x1e000082 wait syz-fuzzer 15775 483185 18734 0 3 0x810008a sigsusp ksh 18734 365493 66125 0 3 0x1800009a kqread sshd 66125 383126 1 0 3 0x18000088 kqread sshd 16306 180786 49487 73 3 0x19100090 kqread syslogd 49487 388141 1 0 3 0x18100082 sbwait syslogd 64552 165178 1 0 3 0x18100080 kqread resolvd 63179 347230 77857 77 3 0x18100092 kqread dhcpleased 33217 480955 77857 77 3 0x18100092 kqread dhcpleased 77857 374989 1 0 3 0x18000080 kqread dhcpleased 69474 502831 0 0 3 0x14200 bored smr 35372 106921 0 0 3 0x14200 pgzero zerothread 35968 265112 0 0 3 0x14200 aiodoned aiodoned 70885 2359 0 0 3 0x14200 syncer update 12844 27298 0 0 3 0x14200 cleaner cleaner 24847 317211 0 0 3 0x14200 reaper reaper 81232 404625 0 0 3 0x14200 pgdaemon pagedaemon 92854 494548 0 0 3 0x14200 bored viomb 41363 498056 0 0 3 0x40014200 acpi0 acpi0 520 504057 0 0 3 0x40014200 idle1 60825 369745 0 0 3 0x14200 bored softnet3 37446 463557 0 0 3 0x14200 bored softnet2 91200 179948 0 0 3 0x14200 bored softnet1 7368 436326 0 0 3 0x14200 bored softnet0 15234 449024 0 0 3 0x14200 bored systqmp 30686 450183 0 0 3 0x14200 bored systq 97558 266782 0 0 3 0x14200 tmoslp softclockmp 82703 45199 0 0 3 0x40014200 tmoslp softclock 51152 508883 0 0 3 0x40014200 idle0 1 352693 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 25170 (syz-executor.1) thread 0xffff80002a2e07f0 (368648) 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 (0xffff800000e4a998) #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 22661 (syz-executor.3) thread 0xffff80003254ed08 (359770) exclusive rrwlock inode r = 0 (0xfffffd807921cf78) #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 spec_open+0x230 sys/kern/spec_vnops.c:151 #6 VOP_OPEN+0x79 sys/kern/vfs_vops.c:138 #7 vn_open+0x4e4 sys/kern/vfs_vnops.c:177 #8 vndioctl+0x988 sys/dev/vnd.c:457 #9 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 #11 sys_ioctl+0x4a9 #12 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #12 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 6509K 7331K 166960K 17127 0 pcb 17 12K 12K 166960K 416 0 rtable 227 7K 9K 166960K 1678 0 pf 34 9K 10K 166960K 207 0 ifaddr 44 16K 16K 166960K 247 0 ifgroup 59 2K 2K 166960K 331 0 sysctl 4 1K 1K 166960K 8 0 counters 68 36K 37K 166960K 216 0 ioctlops 0 0K 4K 166960K 1642 0 iov 0 0K 20K 166960K 157 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1426 90K 90K 166960K 4335 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 60 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 211 0 dirhash 12 2K 2K 166960K 78 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 21 77K 89K 166960K 3058 0 sigio 0 0K 0K 166960K 56 0 proc 58 79K 103K 166960K 1634 0 subproc 143 8K 9K 166960K 741 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 458 0 in_multi 91 6K 7K 166960K 646 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 115 519K 519K 166960K 115 0 exec 0 0K 1K 166960K 1188 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 335 117K 133K 166960K 27184 0 UVM aobj 131 8K 8K 166960K 139 0 pinsyscall 41 82K 100K 166960K 5182 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 190 0 NDP 15 0K 2K 166960K 184 0 temp 90 6809K 14744K 166960K 120549 0 kqueue 13 20K 28K 166960K 458 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 120 359 0 354 1 0 1 1 0 8 0 rtentry 112 574 0 471 5 1 4 4 0 8 0 unpcb 144 2346 0 2321 9 7 2 2 0 8 0 syncache 336 11 0 11 7 6 1 1 0 8 1 tcpqe 32 37 4 37 1 1 0 1 0 8 0 tcpcb 808 718 0 709 11 9 2 2 0 8 0 arp 120 102 0 84 1 0 1 1 0 8 0 inpcb 384 2802 0 2786 13 10 3 6 0 8 0 nd6 136 156 0 134 2 0 2 2 0 8 0 pkpcb 40 24 0 24 7 6 1 1 0 8 1 kcovpl 48 57 0 46 1 0 1 1 0 8 0 ppxss 1168 20 0 20 10 9 1 1 0 8 1 pffrag 232 15 0 15 2 1 1 1 0 482 1 pffrnode 88 15 0 15 2 1 1 1 0 8 1 pffrent 40 115 0 115 2 1 1 1 0 8 1 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 24 222 0 178 1 0 1 1 0 8 0 pfstkey 128 222 0 178 2 0 2 2 0 8 0 pfstate 376 222 0 178 6 1 5 5 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 2155 0 1717 45 17 28 30 0 8 0 art_table 32 2156 0 1717 4 0 4 4 0 8 0 art_node 16 566 0 472 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 10 2 1 1 1 0 8 0 semapl 112 209 0 199 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 62 0 45 3 0 3 3 0 8 0 dino2pl 256 6039 0 4502 97 0 97 97 0 8 0 ffsino 272 6039 0 4502 103 0 103 103 0 8 0 nchpl 144 10485 0 8736 67 0 67 67 0 8 0 uvmvnodes 80 7634 0 0 156 0 156 156 0 8 0 vnodes 216 7634 0 0 425 0 425 425 0 8 0 namei 1024 38629 0 38628 4 3 1 2 0 8 0 percpumem 16 122 0 74 1 0 1 1 0 8 0 vcpupl 3904 5 0 1 1 0 1 1 0 8 0 vmpool 696 19 0 15 4 3 1 1 0 8 0 kstatmem 264 174 0 148 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 64936 0 64936 23 22 1 8 1 8 1 plimitpl 152 512 0 491 1 0 1 1 0 8 0 sigapl 424 3293 0 3221 9 0 9 9 0 8 0 futexpl 64 51908 0 51906 2 1 1 1 0 8 0 knotepl 120 682 0 0 18 0 18 18 0 8 0 kqueuepl 216 906 0 894 5 3 2 2 0 8 1 pipepl 320 661 0 630 3 0 3 3 0 8 0 fdescpl 496 3250 0 3218 8 3 5 5 0 8 0 filepl 152 21851 0 21527 18 5 13 14 0 8 0 lockfpl 104 1256 0 1251 1 0 1 1 0 8 0 lockfspl 48 553 0 548 1 0 1 1 0 8 0 sessionpl 144 60 0 41 1 0 1 1 0 8 0 pgrppl 48 87 0 68 1 0 1 1 0 8 0 ucredpl 104 3717 0 3705 1 0 1 1 0 8 0 zombiepl 144 3226 0 3221 1 0 1 1 0 8 0 processpl 1144 3293 0 3221 6 0 6 6 0 8 0 procpl 656 6062 0 5967 9 0 9 9 0 8 0 srpgc 96 44 0 44 10 9 1 1 0 8 1 sosppl 168 6 0 6 5 5 0 1 0 8 0 sockpl 664 5549 0 5505 18 13 5 7 0 8 0 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 338 0 0 42 1 41 42 0 8 0 mtagpl 96 25 0 0 1 0 1 1 0 8 0 mbufpl 256 559 0 0 24 0 24 24 0 8 0 bufpl 280 12693 0 5035 548 0 548 548 0 8 0 anonpl 24 531902 0 524858 99 28 71 71 0 186 3 amapchunkpl 152 89198 0 88354 72 29 43 43 0 158 8 amappl16 200 11331 0 11179 59 38 21 24 0 8 6 amappl15 192 13 0 13 2 2 0 1 0 8 0 amappl14 184 283 0 272 2 1 1 2 0 8 0 amappl13 176 12 0 12 2 1 1 1 0 8 1 amappl12 168 4488 0 4452 4 2 2 3 0 8 0 amappl11 160 111 0 90 1 0 1 1 0 8 0 amappl10 152 107 0 103 1 0 1 1 0 8 0 amappl9 144 180 0 180 2 2 0 1 0 8 0 amappl8 136 328 0 293 2 0 2 2 0 8 0 amappl7 128 82 0 64 1 0 1 1 0 8 0 amappl6 120 736 0 720 2 1 1 2 0 8 0 amappl5 112 307 0 295 1 0 1 1 0 8 0 amappl4 104 932 0 893 2 0 2 2 0 8 0 amappl3 96 16802 0 16683 5 1 4 4 0 8 0 amappl2 88 3773 0 3697 4 2 2 4 0 8 0 amappl1 80 20710 0 20199 26 14 12 22 0 8 0 amappl 88 26189 0 25938 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 72 138 0 8 3 0 3 3 0 8 0 uaddrrnd 24 3269 0 3233 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3269 0 3233 1 0 1 1 0 8 0 vmmpekpl 168 26115 0 26042 4 0 4 4 0 8 0 vmmpepl 168 222503 0 220351 179 70 109 114 0 357 4 vmsppl 440 3268 0 3233 6 1 5 5 0 8 0 rwobjpl 56 62163 0 53172 141 10 131 131 0 8 0 pdppl 4096 6545 0 6470 189 112 77 79 0 8 2 pvpl 32 45624 0 0 368 0 368 368 0 265 0 pmappl 248 3268 0 3233 5 2 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 545 0 159 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(fffffd806e9496f8,9,0) at witness_checkorder+0xc05 rw_enter(fffffd806e9496e8,1) at rw_enter+0xd1 rrw_enter(fffffd806e9496e8,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd8052269c10,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd8052269c10,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff800032f6ede8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff800032f6ede8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e4a7f0,fffffd807f002c00,ffff80002a2e07f0) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e4a7f0,fffffd806d084400,fffffd807f002c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e4a7f0,fffffd807f002c00,ffff800032f6f078,0,0,0) at sosend+0x7aa sendit(ffff80002a2e07f0,5,ffff800032f6f1f0,0,ffff800032f6f2b0) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff80002a2e07f0,ffff800032f6f360,ffff800032f6f2b0) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff800032f6f360) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff800032f6f360) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72364f4f3a0, 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 __mp_lock(ffffffff82dea318) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dea318) at __mp_lock+0x12e sys/kern/kern_lock.c:147 syscall(ffff80002e130fe0) at syscall+0x83b mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002e130fe0) at syscall+0x83b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e641413b70, count: -6