witness: lock order reversal: 1st 0xffff800000e37e60 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd80675dec48 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(fffffd80675dec48,9,0) at witness_checkorder+0xc05 rw_enter(fffffd80675dec38,1) at rw_enter+0xd1 rrw_enter(fffffd80675dec38,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805baebbe0,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd805baebbe0,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80003619b6b8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff80003619b6b8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e37cb8,fffffd806ec15c00,ffff80002a20a2b0) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e37cb8,fffffd806cc8ed00,fffffd806ec15c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e37cb8,fffffd806ec15c00,ffff80003619b948,0,0,0) at sosend+0x7aa sendit(ffff80002a20a2b0,9,ffff80003619bac0,0,ffff80003619bb80) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff80002a20a2b0,ffff80003619bc30,ffff80003619bb80) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff80003619bc30) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80003619bc30) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a3cc658b30, count: -15 ddb{0}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff80003619b310 rbx 0xffffffff828e9404 pp_r600_decoded_lanes+0x2e88d rdx 0xffff800000ddda80 rcx 0xffff80002a20a2b0 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff80003619b1f0 r9 0x8080808080808080 r10 0x51ad273108f02f60 r11 0xe419ce3bbb4a65c r12 0xfffffd8003b25e88 r13 0xfffffd800333ddc0 r14 0x3 r15 0xffffffff rip 0xffffffff81cae62c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80003619b300 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) tid=186208 pid=70020 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a20a540,0xffffffff82ea1428 process=0xffff80002a290908 user=0xffff800036196000, vmspace=0xfffffd806a9cac18 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70020 307654 70328 0 7 0x8000000 syz-executor.4 *70020 186208 70328 0 7 0xc000000 syz-executor.4 45370 457365 16845 0 2 0x8000000 syz-executor.3 45370 88948 16845 0 3 0xc000080 piperd syz-executor.3 2704 94962 95199 0 3 0x8000090 nanoslp syz-executor.6 2704 436705 95199 0 3 0xc000090 sbwait syz-executor.6 2704 18201 95199 0 3 0xc000090 fsleep syz-executor.6 65930 6997 1 0 3 0x8000080 nanoslp syz-executor.1 65930 22563 1 0 3 0xc000080 fsleep syz-executor.1 65930 219226 1 0 3 0xc000080 sbwait syz-executor.1 65930 360785 1 0 3 0xc000080 fsleep syz-executor.1 52026 149163 21892 0 3 0x8000080 nanoslp syz-executor.5 52026 477595 21892 0 3 0xc000080 kqsel syz-executor.5 52026 496225 21892 0 3 0xc000080 fsleep syz-executor.5 83157 482817 0 0 3 0x14280 nfsidl nfsio 12417 330006 0 0 3 0x14280 nfsidl nfsio 55183 445048 0 0 3 0x14280 nfsidl nfsio 7911 195663 0 0 3 0x14280 nfsidl nfsio 27601 159928 0 0 3 0x14280 nfsidl nfsio 11714 176189 0 0 3 0x14280 nfsidl nfsio 88461 442256 0 0 3 0x14280 nfsidl nfsio 82476 166246 0 0 3 0x14280 nfsidl nfsio 22717 192859 0 0 3 0x14280 nfsidl nfsio 31555 438349 0 0 3 0x14280 nfsidl nfsio 32891 324434 0 0 3 0x14280 nfsidl nfsio 68034 281994 0 0 3 0x14280 nfsidl nfsio 12809 299439 0 0 3 0x14280 nfsidl nfsio 79949 245217 0 0 3 0x14280 nfsidl nfsio 69634 267654 0 0 3 0x14280 nfsidl nfsio 77713 280642 0 0 3 0x14280 nfsidl nfsio 28228 459917 0 0 3 0x14280 nfsidl nfsio 87198 456822 0 0 3 0x14280 nfsidl nfsio 30839 131284 0 0 3 0x14280 nfsidl nfsio 23238 320259 0 0 3 0x14280 nfsidl nfsio 21892 453929 9075 0 3 0x8000082 nanoslp syz-executor.5 70328 423427 9075 0 3 0x8000082 nanoslp syz-executor.4 95199 446727 9075 0 3 0x8000082 nanoslp syz-executor.6 50798 115938 1 0 3 0x18100083 ttyin getty 78738 151607 9075 0 3 0x8000082 nanoslp syz-executor.2 7729 496998 0 0 3 0x14200 bored sosplice 47457 221629 0 0 3 0x14200 acct acct 4591 149922 9075 0 3 0x8000082 nanoslp syz-executor.7 16845 460033 9075 0 3 0x8000082 nanoslp syz-executor.3 86448 36901 9075 0 3 0x8000002 biowait syz-executor.0 9075 338560 86846 0 3 0x1a000082 wait syz-fuzzer 9075 333375 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 240970 86846 0 3 0x1e000082 wait syz-fuzzer 9075 408450 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 202220 86846 0 3 0x1e000082 kqread syz-fuzzer 9075 427505 86846 0 3 0x1e000082 wait syz-fuzzer 9075 55641 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 274422 86846 0 3 0x1e000082 wait syz-fuzzer 9075 14624 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 458903 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 232533 86846 0 3 0x1e000082 thrsleep syz-fuzzer 9075 497098 86846 0 3 0x1e000082 wait syz-fuzzer 9075 507291 86846 0 3 0x1e000082 wait syz-fuzzer 9075 109343 86846 0 3 0x1e000082 wait syz-fuzzer 9075 153460 86846 0 3 0x1e000082 thrsleep syz-fuzzer 86846 351995 56007 0 3 0x810008a sigsusp ksh 56007 60023 99519 0 3 0x1800009a kqread sshd 99519 127657 1 0 3 0x18000088 kqread sshd 99067 173665 73784 73 3 0x19100090 kqread syslogd 73784 398784 1 0 3 0x18100082 sbwait syslogd 25134 67607 1 0 3 0x18100080 kqread resolvd 45976 321120 58328 77 3 0x18100092 kqread dhcpleased 62644 238795 58328 77 3 0x18100092 kqread dhcpleased 58328 481059 1 0 3 0x18000080 kqread dhcpleased 58707 192339 0 0 3 0x14200 bored smr 69859 334431 0 0 3 0x14200 pgzero zerothread 67335 38569 0 0 3 0x14200 aiodoned aiodoned 49975 433293 0 0 3 0x14200 syncer update 49489 202858 0 0 3 0x14200 cleaner cleaner 70729 473662 0 0 3 0x14200 reaper reaper 56693 41657 0 0 3 0x14200 pgdaemon pagedaemon 98005 136901 0 0 3 0x14200 bored viomb 49840 504990 0 0 3 0x40014200 acpi0 acpi0 62280 276877 0 0 3 0x40014200 idle1 38899 378709 0 0 3 0x14200 bored softnet3 90864 20309 0 0 3 0x14200 bored softnet2 90661 194247 0 0 3 0x14200 bored softnet1 18733 258222 0 0 3 0x14200 bored softnet0 32183 129199 0 0 3 0x14200 bored systqmp 6635 305915 0 0 3 0x14200 bored systq 34301 51279 0 0 3 0x14200 tmoslp softclockmp 6767 251665 0 0 3 0x40014200 tmoslp softclock 6863 301742 0 0 3 0x40014200 idle0 1 118074 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 70020 (syz-executor.4) thread 0xffff80002a20a2b0 (186208) 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 (0xffff800000e37e60) #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 86448 (syz-executor.0) thread 0xffff8000ffff62a8 (36901) exclusive rrwlock inode r = 0 (0xfffffd806e1ff5e8) #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 ufs_ihashins+0x46 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:394 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3104 #10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806989ea30) #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 domkdirat+0x79 sys/kern/vfs_syscalls.c:3089 #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 10236 7078K 7078K 166960K 12611 0 pcb 19 12K 12K 166960K 117 0 rtable 250 7K 8K 166960K 677 0 pf 30 9K 10K 166960K 81 0 ifaddr 45 15K 16K 166960K 92 0 ifgroup 53 2K 2K 166960K 117 0 sysctl 4 1K 1K 166960K 4 0 counters 64 36K 36K 166960K 102 0 ioctlops 0 0K 4K 166960K 1517 0 iov 0 0K 16K 166960K 41 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1370 86K 86K 166960K 2063 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 9K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 18 5K 5K 166960K 57 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 85K 166960K 844 0 sigio 0 0K 0K 166960K 13 0 proc 61 91K 115K 166960K 788 0 subproc 104 6K 6K 166960K 208 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 85 0 in_multi 99 7K 7K 166960K 203 0 ether_multi 1 0K 0K 166960K 7 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 539 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 295 77K 95K 166960K 9508 0 UVM aobj 25 4K 4K 166960K 27 0 pinsyscall 36 72K 100K 166960K 2200 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 38 0 NDP 11 0K 2K 166960K 62 0 temp 77 6808K 14744K 166960K 27163 0 kqueue 12 18K 29K 166960K 145 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 120 123 0 118 1 0 1 1 0 8 0 rtentry 112 223 0 107 4 0 4 4 0 8 0 unpcb 144 598 0 576 2 1 1 2 0 8 0 syncache 336 6 0 6 2 2 0 1 0 8 0 tcpqe 32 34 0 34 2 2 0 1 0 8 0 tcpcb 808 200 0 192 3 1 2 2 0 8 0 arp 120 39 0 20 1 0 1 1 0 8 0 inpcb 384 754 0 739 4 1 3 3 0 8 0 nd6 136 54 0 27 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 ppxss 1168 7 0 7 3 2 1 1 0 8 1 pffrag 232 6 0 2 1 0 1 1 0 482 0 pffrnode 88 5 0 2 1 0 1 1 0 8 0 pffrent 40 93 0 89 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 69 0 30 1 0 1 1 0 8 0 pfstkey 128 69 0 30 2 0 2 2 0 8 0 pfstate 376 69 0 30 4 0 4 4 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 256 827 0 363 33 3 30 30 0 8 0 art_table 32 828 0 363 4 0 4 4 0 8 0 art_node 16 218 0 113 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 10 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 52 0 36 1 0 1 1 0 8 0 shmpl 112 24 0 2 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 2687 0 1164 96 0 96 96 0 8 0 ffsino 272 2687 0 1164 102 0 102 102 0 8 0 nchpl 144 3981 0 2237 67 0 67 67 0 8 0 uvmvnodes 80 3317 0 0 68 0 68 68 0 8 0 vnodes 216 3317 0 0 185 0 185 185 0 8 0 namei 1024 14075 0 14073 2 1 1 2 0 8 0 percpumem 16 65 0 19 1 0 1 1 0 8 0 vcpupl 3904 1 0 0 1 0 1 1 0 8 0 vmpool 696 4 0 3 1 0 1 1 0 8 0 kstatmem 264 60 0 38 2 0 2 2 0 8 0 scxspl 216 26652 0 26651 12 11 1 8 1 8 0 plimitpl 152 171 0 156 1 0 1 1 0 8 0 sigapl 424 1159 0 1092 8 0 8 8 0 8 0 futexpl 64 13476 0 13472 1 0 1 1 0 8 0 knotepl 120 391 0 0 11 0 11 11 0 8 0 kqueuepl 216 263 0 253 1 0 1 1 0 8 0 pipepl 320 276 0 247 3 0 3 3 0 8 0 fdescpl 496 1119 0 1092 6 2 4 5 0 8 0 filepl 152 6615 0 6346 12 1 11 12 0 8 0 lockfpl 104 278 0 275 1 0 1 1 0 8 0 lockfspl 48 128 0 125 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 37 0 21 1 0 1 1 0 8 0 ucredpl 104 871 0 860 1 0 1 1 0 8 0 zombiepl 144 1094 0 1092 1 0 1 1 0 8 0 processpl 1144 1159 0 1092 5 0 5 5 0 8 0 procpl 656 1904 0 1814 9 0 9 9 0 8 0 srpgc 96 9 0 9 2 2 0 1 0 8 0 sosppl 168 5 0 5 3 2 1 1 0 8 1 sockpl 664 1488 0 1446 8 3 5 5 0 8 1 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k 2048 346 0 0 44 0 44 44 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 394 0 0 23 0 23 23 0 8 0 bufpl 280 8173 0 1755 459 0 459 459 0 8 0 anonpl 24 297500 0 291092 76 7 69 73 0 186 7 amapchunkpl 152 31320 0 30613 49 9 40 40 0 158 9 amappl16 200 7763 0 7614 29 11 18 21 0 8 0 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 185 0 172 2 1 1 2 0 8 0 amappl13 176 14 0 14 1 1 0 1 0 8 0 amappl12 168 1877 0 1848 2 0 2 2 0 8 0 amappl11 160 80 0 60 1 0 1 1 0 8 0 amappl10 152 55 0 54 1 0 1 1 0 8 0 amappl9 144 223 0 223 2 2 0 1 0 8 0 amappl8 136 149 0 117 2 0 2 2 0 8 0 amappl7 128 77 0 65 1 0 1 1 0 8 0 amappl6 120 411 0 398 2 1 1 2 0 8 0 amappl5 112 197 0 185 1 0 1 1 0 8 0 amappl4 104 582 0 550 2 1 1 2 0 8 0 amappl3 96 6245 0 6155 3 0 3 3 0 8 0 amappl2 88 1577 0 1505 4 2 2 4 0 8 0 amappl1 80 12256 0 11768 23 12 11 22 0 8 0 amappl 88 8858 0 8653 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 26 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1123 0 1095 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1123 0 1095 1 0 1 1 0 8 0 vmmpekpl 168 12248 0 12178 4 0 4 4 0 8 0 vmmpepl 168 90557 0 88669 126 27 99 116 0 357 5 vmsppl 440 1122 0 1095 4 0 4 4 0 8 0 rwobjpl 56 32547 0 28098 67 4 63 63 0 8 0 pdppl 4096 2253 0 2191 100 34 66 75 0 8 4 pvpl 32 48668 0 0 395 2 393 393 0 265 0 pmappl 248 1122 0 1095 4 2 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 423 0 45 11 0 11 11 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(fffffd80675dec48,9,0) at witness_checkorder+0xc05 rw_enter(fffffd80675dec38,1) at rw_enter+0xd1 rrw_enter(fffffd80675dec38,1) at rrw_enter+0x91 sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805baebbe0,2001) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 vn_lock(fffffd805baebbe0,2001) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80003619b6b8) at vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 namei(ffff80003619b6b8) at namei+0x56a sys/kern/vfs_lookup.c:250 unp_connect(ffff800000e37cb8,fffffd806ec15c00,ffff80002a20a2b0) at unp_connect+0x1ce sys/kern/uipc_usrreq.c:864 uipc_dgram_send(ffff800000e37cb8,fffffd806cc8ed00,fffffd806ec15c00,0) at uipc_dgram_send+0xd7 sys/kern/uipc_usrreq.c:599 sosend(ffff800000e37cb8,fffffd806ec15c00,ffff80003619b948,0,0,0) at sosend+0x7aa sendit(ffff80002a20a2b0,9,ffff80003619bac0,0,ffff80003619bb80) at sendit+0x54c sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff80002a20a2b0,ffff80003619bc30,ffff80003619bb80) at sys_sendmsg+0x19b sys/kern/uipc_syscalls.c:604 syscall(ffff80003619bc30) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80003619bc30) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a3cc658b30, 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+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dea318) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800033d59330) at syscall+0x83b mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff800033d59330) at syscall+0x83b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74eaa8b626d0, count: -6