witness: lock order reversal: 1st 0xffff800010fdb688 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806e6e6118 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff8341328d -> 0xffffffff83386825 is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 sblock+0xb6 sys/kern/uipc_socket2.c:536 #2 soreceive+0x27d sys/kern/uipc_socket.c:890 #3 fifo_read+0x117 sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b sys/kern/vfs_vnops.c:-1 #6 vndsetcred+0xa1 sys/dev/vnd.c:685 #7 vndioctl+0xdfc sys/dev/vnd.c:486 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #11 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #12 Xsyscall+0x128 lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 sblock+0xb6 sys/kern/uipc_socket2.c:536 #2 sosplice+0x312 sys/kern/uipc_socket.c:1347 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1227 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #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:438 witness_checkorder(fffffd806e6e6118,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e6e6100,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e6e6100,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd800c5bf720,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 vn_lock(fffffd800c5bf720,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c4695e0) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c4695e0) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fdb4a0,fffffd806d78d300,ffff80003c428aa0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800010fdb4a0,fffffd807eac0e00,fffffd806d78d300,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800010fdb4a0,fffffd806d78d300,ffff80003c469868,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c428aa0,6,ffff80003c4699e8,e,ffff80003c469aa0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff80003c428aa0,ffff80003c469b50,ffff80003c469aa0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c469b50) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c469b50) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd45e57c72c0, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c469250 rbx 0 rdx 0 rcx 0xffff80003c428aa0 rax 0xffffffff83863ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003c469130 r9 0x8080808080808080 r10 0xefa7f3fd80748685 r11 0x5648f16ebca6139b r12 0xfffffd8003f548c0 r13 0xfffffd800473bbe0 r14 0x3 r15 0xffffffff83421d15 substchar+0x68ae rip 0xffffffff82eec745 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c469240 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=305999 pid=53453 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c428040,0xffffffff83919b40 process=0xffff80003c4c8ea0 user=0xffff80003c464000, vmspace=0xfffffd805ecd7b98 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53453 112324 9435 0 2 0 syz-executor 53453 108155 9435 0 3 0x4000080 sbwait syz-executor *53453 305999 9435 0 7 0x4000000 syz-executor 45252 270447 15816 0 3 0x80 nanoslp syz-executor 45252 11410 15816 0 3 0x4000080 fifow syz-executor 81598 86197 60894 0 2 0 syz-executor 81598 315252 60894 0 3 0x4000080 fsleep syz-executor 695 117625 90138 0 3 0x80 nanoslp syz-executor 695 250021 90138 0 3 0x4000080 ttyout syz-executor 695 494382 90138 0 3 0x4000080 ttyout syz-executor 695 122675 90138 0 3 0x4000080 ttyin syz-executor 17962 282022 91976 0 2 0 syz-executor 17962 507029 91976 0 3 0x4000080 fsleep syz-executor 38893 196792 73445 0 2 0 syz-executor 38893 194329 73445 0 3 0x4000080 fsleep syz-executor 90138 14034 78376 0 3 0x82 nanoslp syz-executor 9435 48235 78376 0 3 0x82 nanoslp syz-executor 60894 501476 78376 0 3 0x82 nanoslp syz-executor 37009 10457 0 0 3 0x14280 nfsidl nfsio 21206 468696 0 0 3 0x14280 nfsidl nfsio 34799 74541 0 0 3 0x14280 nfsidl nfsio 30979 431121 0 0 3 0x14280 nfsidl nfsio 92389 201359 0 0 3 0x14280 nfsidl nfsio 79153 457181 0 0 3 0x14280 nfsidl nfsio 83178 406133 0 0 3 0x14280 nfsidl nfsio 49790 509263 0 0 3 0x14280 nfsidl nfsio 74947 448061 0 0 3 0x14280 nfsidl nfsio 36602 319907 0 0 3 0x14280 nfsidl nfsio 81884 98738 0 0 3 0x14280 nfsidl nfsio 20213 80762 0 0 3 0x14280 nfsidl nfsio 44636 500873 0 0 3 0x14280 nfsidl nfsio 1431 244704 0 0 3 0x14280 nfsidl nfsio 26133 257002 0 0 3 0x14280 nfsidl nfsio 22587 471923 0 0 3 0x14280 nfsidl nfsio 12527 99481 0 0 3 0x14280 nfsidl nfsio 15138 263627 0 0 3 0x14280 nfsidl nfsio 97720 200402 0 0 3 0x14280 nfsidl nfsio 76648 350898 0 0 3 0x14280 nfsidl nfsio 91693 105346 78376 0 3 0x82 nanoslp syz-executor 91976 409377 78376 0 3 0x82 nanoslp syz-executor 15816 462658 78376 0 3 0x82 nanoslp syz-executor 12084 65274 78376 0 3 0x2 biowait syz-executor 73445 416521 78376 0 3 0x82 nanoslp syz-executor 78376 320470 56348 0 3 0x82 kqread syz-executor 56348 237701 285 0 3 0x10008a sigsusp ksh 285 21638 17166 0 3 0x98 kqread sshd-session 17166 56752 5972 0 3 0x92 kqread sshd-session 47865 296528 1 0 3 0x100083 ttyopn getty 5972 86679 1 0 3 0x88 kqread sshd 66506 83308 26041 74 3 0x1100092 bpf pflogd 26041 318964 1 0 3 0x80 sbwait pflogd 87670 25989 63384 73 3 0x1100090 kqread syslogd 63384 437080 1 0 3 0x100082 sbwait syslogd 35757 81721 1 0 3 0x100080 kqread resolvd 95546 522932 78938 77 3 0x100092 kqread dhcpleased 46018 523787 78938 77 3 0x100092 kqread dhcpleased 78938 104646 1 0 3 0x80 kqread dhcpleased 47769 340894 0 0 3 0x14200 bored smr 17853 210628 0 0 2 0x14200 zerothread 11549 15539 0 0 3 0x14200 aiodoned aiodoned 30331 372563 0 0 3 0x14200 syncer update 31425 295862 0 0 3 0x14200 cleaner cleaner 10390 235251 0 0 3 0x14200 reaper reaper 28358 513565 0 0 3 0x14200 pgdaemon pagedaemon 48428 31805 0 0 3 0x14200 bored viomb 81987 114629 0 0 3 0x40014200 acpi0 acpi0 70790 142173 0 0 7 0x40014200 idle1 47672 19836 0 0 3 0x14200 bored softnet1 22817 832 0 0 3 0x14200 bored softnet0 95241 410880 0 0 3 0x14200 bored systqmp 25538 292211 0 0 3 0x14200 bored systq 27949 433745 0 0 3 0x14200 tmoslp softclockmp 98989 196919 0 0 3 0x40014200 tmoslp softclock 50693 267899 0 0 3 0x40014200 idle0 1 7862 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 53453 (syz-executor) thread 0xffff80003c428aa0 (305999) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838d2580) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 unp_connect+0x28c sys/kern/uipc_usrreq.c:872 #2 uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 #3 sosend+0x804 sys/kern/uipc_socket.c:-1 #4 sendit+0x5a5 sys/kern/uipc_syscalls.c:785 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fdb688) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e9 sys/kern/uipc_socket.c:639 #4 sendit+0x5a5 sys/kern/uipc_syscalls.c:785 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 Process 12084 (syz-executor) thread 0xffff8000ffff34d8 (65274) exclusive rrwlock inode r = 0 (0xfffffd806e6f7100) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068d72338) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11079 12184K 12428K 166960K 13290 0 pcb 18 18K 19K 166960K 453 0 rtable 181 9K 10K 166960K 642 0 pf 34 17K 21K 166960K 195 0 ifaddr 34 5K 7K 166960K 113 0 ifgroup 50 2K 3K 166960K 179 0 sysctl 4 1K 9K 166960K 11 0 counters 74 37K 38K 166960K 212 0 ioctlops 0 0K 4K 166960K 2090 0 iov 0 0K 20K 166960K 193 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 2357 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 223 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 1310 0 sigio 0 0K 0K 166960K 26 0 proc 72 115K 147K 166960K 748 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 158 0 in_multi 61 4K 7K 166960K 181 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 121 546K 546K 166960K 121 0 exec 0 0K 1K 166960K 731 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 241 161K 180K 166960K 13363 0 UVM aobj 52 4K 4K 166960K 53 0 pinsyscall 42 84K 104K 166960K 2556 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 190 0 NDP 12 0K 1K 166960K 83 0 temp 80 8688K 8760K 166960K 47273 0 kqueue 13 20K 30K 166960K 259 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 201 0 198 3 2 1 2 0 8 0 rtentry 176 183 0 115 5 0 5 5 0 8 0 unpcb 144 914 0 892 11 8 3 6 0 8 2 syncache 336 7 0 7 3 2 1 1 0 8 1 tcpqe 32 2 0 2 2 1 1 1 0 8 1 tcpcb 736 317 0 308 5 3 2 4 0 8 1 arp 136 29 0 15 1 0 1 1 0 8 0 inpcb 328 1737 0 1722 24 17 7 10 0 8 5 nd6 152 41 0 27 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 57 0 54 3 2 1 1 0 8 0 pppxif 1504 3 0 3 1 1 0 1 0 8 0 pffrag 232 8 0 3 2 1 1 1 0 482 0 pffrnode 88 7 0 2 2 1 1 1 0 8 0 pffrent 40 15 0 10 2 1 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 pfsrclim 320 1 0 0 1 0 1 1 0 8 0 pfrule 1360 10 0 10 2 2 0 1 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 815 0 515 33 7 26 29 0 8 4 art_table 40 818 0 515 5 0 5 5 0 8 0 art_node 32 183 0 125 1 0 1 1 0 8 0 semapl 112 219 0 209 1 0 1 1 0 8 0 shmpl 112 50 0 1 2 0 2 2 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 3895 0 2382 96 0 96 96 0 8 0 ffsino 296 3895 0 2382 118 0 118 118 0 8 0 nchpl 144 5641 0 3928 64 0 64 64 0 8 0 rtmask 32 17 0 15 6 5 1 1 0 8 0 vnodes 216 4445 0 0 247 0 247 247 0 8 0 namei 1024 20464 0 20463 3 2 1 1 0 8 0 percpumem 16 121 0 69 1 0 1 1 0 8 0 kstatmem 264 120 0 92 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 8 0 8 4 3 1 1 0 8 1 scxspl 216 35400 0 35399 10 9 1 8 1 8 0 plimitpl 152 440 0 423 1 0 1 1 0 8 0 sigapl 424 1636 0 1569 9 1 8 8 0 8 0 knotepl 120 549 0 0 17 0 17 17 0 8 0 kqueuepl 224 527 0 518 7 4 3 5 0 8 2 pipepl 344 249 0 222 6 3 3 6 0 8 0 fdescpl 528 1598 0 1567 3 0 3 3 0 8 0 filepl 160 10851 0 10627 27 11 16 18 0 8 4 lockfpl 104 623 0 621 2 1 1 2 0 8 0 lockfspl 48 209 0 207 1 0 1 1 0 8 0 sessionpl 144 29 0 20 1 0 1 1 0 8 0 pgrppl 48 52 0 35 1 0 1 1 0 8 0 ucredpl 104 1729 0 1716 1 0 1 1 0 8 0 zombiepl 144 1639 0 1638 3 2 1 1 0 8 0 processpl 1232 1636 0 1569 7 1 6 6 0 8 0 procpl 664 3454 0 3378 9 1 8 8 0 8 0 sosppl 176 7 0 7 2 1 1 1 0 8 1 sockpl 752 2961 0 2921 52 42 10 24 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 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 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 365 0 0 23 0 23 23 0 8 0 bufpl 280 13868 0 7732 439 0 439 439 0 8 0 anonpl 32 13249 0 0 108 1 107 107 0 246 0 amapchunkpl 152 46048 0 45567 63 36 27 38 0 158 1 amappl16 200 6033 0 5996 54 39 15 34 0 8 6 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 7 0 7 1 1 0 1 0 8 0 amappl13 176 475 0 474 1 0 1 1 0 8 0 amappl12 168 1988 0 1946 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 71 0 56 1 0 1 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 97 0 95 1 0 1 1 0 8 0 amappl6 120 360 0 347 1 0 1 1 0 8 0 amappl5 112 102 0 91 1 0 1 1 0 8 0 amappl4 104 456 0 424 1 0 1 1 0 8 0 amappl3 96 7947 0 7855 3 0 3 3 0 8 0 amappl2 88 1719 0 1641 2 0 2 2 0 8 0 amappl1 80 14940 0 14348 15 1 14 14 0 8 0 amappl 88 12331 0 12169 6 1 5 5 0 92 0 uvmvnodes 80 150 0 0 4 0 4 4 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 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 4 3 1 1 0 8 1 dma64 64 8 0 8 3 2 1 1 0 8 1 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 52 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1598 0 1567 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1598 0 1567 1 0 1 1 0 8 0 vmmpekpl 168 13967 0 13922 3 0 3 3 0 8 0 vmmpepl 168 107818 0 105873 122 23 99 107 0 357 3 vmsppl 488 1597 0 1567 6 1 5 5 0 8 0 rwobjpl 80 30712 0 29577 36 7 29 33 0 8 0 pdppl 4096 3204 0 3134 108 34 74 86 0 8 4 pvpl 32 20412 0 0 165 0 165 165 0 265 0 pmappl 256 1597 0 1567 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 308 0 53 8 0 8 8 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:438 witness_checkorder(fffffd806e6e6118,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e6e6100,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e6e6100,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd800c5bf720,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 vn_lock(fffffd800c5bf720,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c4695e0) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c4695e0) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fdb4a0,fffffd806d78d300,ffff80003c428aa0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff800010fdb4a0,fffffd807eac0e00,fffffd806d78d300,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff800010fdb4a0,fffffd806d78d300,ffff80003c469868,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c428aa0,6,ffff80003c4699e8,e,ffff80003c469aa0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff80003c428aa0,ffff80003c469b50,ffff80003c469aa0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c469b50) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c469b50) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd45e57c72c0, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5