witness: lock order reversal: 1st 0xffff8000014c88c8 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806f562ea8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff833d32bf -> 0xffffffff8334590b 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:870 #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+0xdfb 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:746 #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+0x3e1 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:746 #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(fffffd806f562ea8,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806f562e90,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806f562e90,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd806949bbf8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd806949bbf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c40c900) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c40c900) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff8000014c86e0,fffffd805d676d00,ffff8000fffe9a10) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff8000014c86e0,fffffd805d648a00,fffffd805d676d00,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff8000014c86e0,fffffd805d676d00,ffff80003c40cb88,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff8000fffe9a10,6,ffff80003c40cd08,e,ffff80003c40cdc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff8000fffe9a10,ffff80003c40ce70,ffff80003c40cdc0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c40ce70) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40ce70) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3c468769210, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c40c580 rbx 0 rdx 0 rcx 0xffff8000fffe9a10 rax 0xffffffff837efff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003c40c460 r9 0x8080808080808080 r10 0x7ed7e3651ee4bd r11 0xbe4fde3d2b1d6f37 r12 0xfffffd8003eff680 r13 0xfffffd80046e6b58 r14 0x3 r15 0xffffffff833e2b64 substchar+0xf1da rip 0xffffffff831577a5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c40c570 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=389076 pid=87899 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c414a88,0xffff8000fffe9258 process=0xffff8000fffed358 user=0xffff80003c407000, vmspace=0xfffffd800b0273d0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29632 308151 37197 0 7 0 syz-executor 87279 145282 51574 0 2 0 syz-executor 87279 90958 51574 0 3 0x4000080 fsleep syz-executor 454 288574 77332 60929 2 0x10 syz-executor 454 459957 77332 60929 3 0x4000090 ttyout syz-executor 87899 106161 18686 0 2 0 syz-executor *87899 389076 18686 0 7 0x4000000 syz-executor 87899 95432 18686 0 3 0x4000080 fsleep syz-executor 54248 193927 96700 0 3 0x80 nanoslp syz-executor 54248 79019 96700 0 3 0x4000080 netcon syz-executor 54248 235954 96700 0 3 0x4000080 fsleep syz-executor 54248 329109 96700 0 3 0x4000080 fsleep syz-executor 78246 319842 59598 0 3 0x80 nanoslp syz-executor 78246 321342 59598 0 3 0x4000080 fsleep syz-executor 78246 224603 59598 0 3 0x4000080 fsleep syz-executor 78246 457091 59598 0 3 0x4000080 kqsel syz-executor 93725 63414 0 0 3 0x14200 acct acct 78309 285211 23938 0 3 0x2 biowait syz-executor 51574 423169 23938 0 3 0x82 nanoslp syz-executor 59598 357332 23938 0 3 0x82 nanoslp syz-executor 96700 116073 23938 0 3 0x82 nanoslp syz-executor 82823 410434 23938 0 3 0x82 nanoslp syz-executor 55076 441346 0 0 3 0x14200 bored sosplice 37197 234769 23938 0 3 0x82 nanoslp syz-executor 77332 414702 23938 0 3 0x82 nanoslp syz-executor 18686 138138 23938 0 3 0x82 nanoslp syz-executor 23938 471833 50507 0 3 0x82 kqread syz-executor 50507 195182 7733 0 3 0x10008a sigsusp ksh 7733 474904 55332 0 3 0x98 kqread sshd-session 55332 157510 60481 0 3 0x92 kqread sshd-session 61975 357626 1 0 3 0x100083 ttyopn getty 60481 160786 1 0 3 0x88 kqread sshd 48462 204435 7349 74 3 0x1100092 bpf pflogd 7349 427338 1 0 3 0x80 sbwait pflogd 63008 210918 71221 73 3 0x1100090 kqread syslogd 71221 212013 1 0 3 0x100082 sbwait syslogd 80351 485926 1 0 3 0x100080 kqread resolvd 29475 153642 10465 77 3 0x100092 kqread dhcpleased 15593 62547 10465 77 3 0x100092 kqread dhcpleased 10465 421097 1 0 3 0x80 kqread dhcpleased 75503 100804 0 0 3 0x14200 bored smr 33958 254243 0 0 2 0x14200 zerothread 19051 484669 0 0 3 0x14200 aiodoned aiodoned 14292 451062 0 0 3 0x14200 syncer update 9649 361350 0 0 3 0x14200 cleaner cleaner 53816 280318 0 0 3 0x14200 reaper reaper 64068 135563 0 0 3 0x14200 pgdaemon pagedaemon 35611 26712 0 0 3 0x14200 bored viomb 62303 385546 0 0 3 0x40014200 acpi0 acpi0 19384 56291 0 0 3 0x40014200 idle1 74035 17698 0 0 3 0x14200 bored softnet1 7212 116544 0 0 3 0x14200 bored softnet0 41430 80175 0 0 3 0x14200 bored systqmp 74156 502923 0 0 3 0x14200 bored systq 86283 269185 0 0 3 0x14200 tmoslp softclockmp 55089 495941 0 0 3 0x40014200 tmoslp softclock 96759 357353 0 0 3 0x40014200 idle0 1 396291 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 29632 (syz-executor) thread 0xffff80003c414d20 (308151) exclusive rwlock uobjlk r = 0 (0xfffffd806b940808) #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 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:655 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd800b027e58) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1902 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:699 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 Process 87899 (syz-executor) thread 0xffff8000fffe9a10 (389076) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83915fc0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 pool_get+0x27e sys/kern/subr_pool.c:591 #3 namei+0xdf sys/kern/vfs_lookup.c:145 #4 unp_connect+0x29d sys/kern/uipc_usrreq.c:872 #5 uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 #6 sosend+0x804 sys/kern/uipc_socket.c:-1 #7 sendit+0x5a5 sys/kern/uipc_syscalls.c:785 #8 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #10 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000014c88c8) #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:631 #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:746 #7 Xsyscall+0x128 Process 78309 (syz-executor) thread 0xffff80002a2702b0 (285211) exclusive rrwlock inode r = 0 (0xfffffd806e0d2a30) #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+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e1e0c98) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 11166K 11531K 166960K 15002 0 pcb 17 15K 31K 166960K 491 0 rtable 201 10K 10K 166960K 613 0 pf 36 18K 20K 166960K 229 0 ifaddr 40 7K 8K 166960K 172 0 ifgroup 51 2K 2K 166960K 283 0 sysctl 4 1K 9K 166960K 31 0 counters 66 36K 38K 166960K 326 0 ioctlops 0 0K 4K 166960K 1898 0 iov 0 0K 24K 166960K 156 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1464 92K 93K 166960K 3519 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 624K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 16 28K 28K 166960K 150 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 2213 0 sigio 0 0K 0K 166960K 73 0 proc 73 115K 164K 166960K 933 0 subproc 72 4K 4K 166960K 144 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 235 0 in_multi 87 6K 7K 166960K 250 0 ether_multi 1 0K 0K 166960K 14 0 mrt 1 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 748 0 fusefs mount 1 32K 32K 166960K 1 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 249 164K 178K 166960K 21201 0 UVM aobj 65 3K 4K 166960K 68 0 pinsyscall 42 84K 102K 166960K 3481 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 152 0 NDP 11 0K 2K 166960K 123 0 temp 79 8656K 8774K 166960K 81863 0 kqueue 14 22K 34K 166960K 399 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 120 170 0 167 1 0 1 1 0 8 0 rtentry 176 222 0 143 5 0 5 5 0 8 0 unpcb 144 1663 0 1645 8 6 2 6 0 8 1 syncache 336 7 0 7 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 684 0 677 12 10 2 7 0 8 1 arp 136 25 0 15 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 2211 0 2200 17 13 4 9 0 8 3 nd6 152 43 0 23 1 0 1 1 0 8 0 pkpcb 40 13 0 13 3 2 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 101 0 101 2 1 1 1 0 8 1 pppxif 1504 11 0 11 4 4 0 1 0 8 0 pffrag 232 7 0 1 1 0 1 1 0 482 0 pffrnode 88 7 0 1 1 0 1 1 0 8 0 pffrent 40 17 0 11 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 pfrktable 1344 5 0 5 3 3 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 143 0 42 1 0 1 1 0 8 0 pfstkey 128 145 0 46 4 0 4 4 0 8 0 pfstate 384 142 0 43 10 0 10 10 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1025 0 679 30 6 24 30 0 8 0 art_table 40 1027 0 679 5 0 5 5 0 8 0 art_node 32 218 0 151 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 141 0 127 1 0 1 1 0 8 0 shmpl 112 65 0 3 2 0 2 2 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 5359 0 3842 96 0 96 96 0 8 0 ffsino 296 5359 0 3842 118 0 118 118 0 8 0 nchpl 144 8308 0 6597 64 0 64 64 0 8 0 rtmask 32 18 0 18 3 3 0 1 0 8 0 uvmvnodes 80 4789 0 0 98 0 98 98 0 8 0 vnodes 216 4789 0 0 267 0 267 267 0 8 0 namei 1024 29586 0 29584 3 2 1 2 0 8 0 percpumem 16 178 0 130 1 0 1 1 0 8 0 kstatmem 264 180 0 156 4 2 2 3 0 8 0 scsiplug 72 7 0 7 3 2 1 1 0 8 1 scxspl 216 57170 0 57169 11 9 2 8 1 8 1 plimitpl 152 705 0 688 2 1 1 2 0 8 0 sigapl 424 2469 0 2420 7 1 6 7 0 8 0 knotepl 120 543 0 0 17 0 17 17 0 8 0 kqueuepl 224 940 0 929 9 5 4 5 0 8 3 pipepl 344 313 0 286 3 0 3 3 0 8 0 fdescpl 528 2447 0 2416 3 0 3 3 0 8 0 filepl 160 16492 0 16271 22 9 13 21 0 8 0 lockfpl 104 1252 0 1250 3 2 1 2 0 8 0 lockfspl 48 545 0 543 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 66 0 49 1 0 1 1 0 8 0 ucredpl 104 2249 0 2234 1 0 1 1 0 8 0 zombiepl 144 2859 0 2858 1 0 1 1 0 8 0 processpl 1232 2469 0 2420 5 1 4 5 0 8 0 procpl 664 5931 0 5872 6 0 6 6 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 752 4179 0 4147 37 26 11 18 0 8 7 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 145 0 0 19 0 19 19 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 33 0 0 5 0 5 5 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 1600 0 0 100 0 100 100 0 8 0 bufpl 280 23041 0 16898 440 0 440 440 0 8 0 anonpl 32 16066 0 0 131 1 130 130 0 246 0 amapchunkpl 152 73070 0 72477 43 10 33 34 0 158 6 amappl16 200 7028 0 6944 61 34 27 35 0 8 8 amappl15 192 4 0 4 2 2 0 1 0 8 0 amappl14 184 129 0 117 1 0 1 1 0 8 0 amappl13 176 2 0 1 1 0 1 1 0 8 0 amappl12 168 3214 0 3184 3 1 2 2 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 7 0 6 1 0 1 1 0 8 0 amappl9 144 252 0 251 2 1 1 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 121 0 109 1 0 1 1 0 8 0 amappl6 120 257 0 253 1 0 1 1 0 8 0 amappl5 112 154 0 144 1 0 1 1 0 8 0 amappl4 104 330 0 309 1 0 1 1 0 8 0 amappl3 96 12983 0 12880 4 1 3 3 0 8 0 amappl2 88 2722 0 2640 2 0 2 2 0 8 0 amappl1 80 17608 0 17010 15 1 14 15 0 8 0 amappl 88 20033 0 19858 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 67 0 3 2 0 2 2 0 8 0 uaddrrnd 24 2447 0 2416 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2447 0 2416 1 0 1 1 0 8 0 vmmpekpl 168 19347 0 19296 3 0 3 3 0 8 0 vmmpepl 168 156146 0 154067 133 15 118 118 0 357 13 vmsppl 488 2446 0 2416 5 0 5 5 0 8 0 rwobjpl 80 45187 0 39318 133 1 132 132 0 8 3 pdppl 4096 4902 0 4832 114 42 72 86 0 8 2 pvpl 32 22832 0 0 184 0 184 184 0 265 0 pmappl 256 2446 0 2416 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 398 0 65 10 0 10 10 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(fffffd806f562ea8,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806f562e90,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806f562e90,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd806949bbf8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd806949bbf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c40c900) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 namei(ffff80003c40c900) at namei+0x7ca sys/kern/vfs_lookup.c:250 unp_connect(ffff8000014c86e0,fffffd805d676d00,ffff8000fffe9a10) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872 uipc_dgram_send(ffff8000014c86e0,fffffd805d648a00,fffffd805d676d00,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609 sosend(ffff8000014c86e0,fffffd805d676d00,ffff80003c40cb88,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff8000fffe9a10,6,ffff80003c40cd08,e,ffff80003c40cdc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendmsg(ffff8000fffe9a10,ffff80003c40ce70,ffff80003c40cdc0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603 syscall(ffff80003c40ce70) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40ce70) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3c468769210, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 __mp_lock(ffffffff83915db8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83915db8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 uvm_fault(fffffd800b027d58,72ecc771000,0,2) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:656 upageflttrap(ffff800030be6b50,72ecc771000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff800030be6b50) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fccf9a24ba0, count: -8