witness: lock order reversal: 1st 0xffff80000134abe0 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd806deb2400 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83161d3f -> 0xffffffff830d64b2 is missing lock order [2] inode (&ip->i_lock) -> [1] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:537 #2 soreceive+0x28e sys/kern/uipc_socket.c:876 #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+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x5c3 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806deb2400,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806deb23e8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806deb23e8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8009840360,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8009840360,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8009840360,fffffd8009840bd0,0,0,200,0,f91000286db5d806) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8009840360,fffffd8009840bd0,ffff80003c64c040) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd8071540200,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000134ab00,ffff80003c6af4c8,ffff80003c6af478,0,ffff80003c6af4b8,ffff80003c6af63c,8dfc53cbb9cfbbf0) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80003c64c040,7,ffff80003c6af610,0,ffff80003c6af6c0) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff80003c64c040,ffff80003c6af770,ffff80003c6af6c0) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80003c6af770) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c6af770) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84b9b071e20, count: -14 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c6aef50 rbx 0xfffffd800433b3e8 rdx 0 rcx 0xffff80003c64c040 rax 0xffff800029b5bff0 r8 0xffff80003c6aee30 r9 0x8080808080808080 r10 0x66abe3fb08d76560 r11 0xb959acedadc82bda r12 0 r13 0xfffffd8003b53f00 r14 0x3 r15 0xffffffff rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c6aef40 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=121897 pid=20195 tcnt=3 stat=onproc flags process=1000000 proc=4000000 runpri=24, usrpri=83, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c5b5980,0xffff80003c64ca70 process=0xffff80003c649b68 user=0xffff80003c6aa000, vmspace=0xfffffd80681ceca0 estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 23034 357111 81559 0 2 0 syz-executor 23034 511826 81559 0 3 0x4000080 fsleep syz-executor 85034 246658 29536 0 2 0x3000 syz-executor 14434 498507 95282 0 2 0 syz-executor 14434 124829 95282 0 3 0x4000080 kqsel syz-executor 14434 460617 95282 0 3 0x4000080 fsleep syz-executor 14434 356478 95282 0 3 0x4000080 fsleep syz-executor 20195 160554 75732 0 2 0x1000000 syz-executor *20195 121897 75732 0 7 0x5000000 syz-executor 20195 498882 75732 0 3 0x5000080 fsleep syz-executor 83087 417304 98163 0 3 0x80 nanoslp syz-executor 83087 389347 98163 0 3 0x4000000 smrbar syz-executor 83087 112231 98163 0 3 0x4000080 fsleep syz-executor 94042 202761 1 0 3 0x80 nanoslp init 82579 398981 0 0 3 0x14200 acct acct 81559 171696 41443 0 3 0x82 nanoslp syz-executor 12582 72883 41443 0 3 0x82 wait syz-executor 1329 363452 41443 0 3 0x2 biowait syz-executor 98163 43618 41443 0 3 0x82 nanoslp syz-executor 63912 271403 0 0 3 0x14280 nfsidl nfsio 60068 460870 0 0 3 0x14280 nfsidl nfsio 60284 252022 0 0 3 0x14280 nfsidl nfsio 90000 92126 0 0 3 0x14280 nfsidl nfsio 73915 284408 0 0 3 0x14280 nfsidl nfsio 39802 295234 0 0 3 0x14280 nfsidl nfsio 90533 260646 0 0 3 0x14280 nfsidl nfsio 2379 168711 0 0 3 0x14280 nfsidl nfsio 78434 222385 0 0 3 0x14280 nfsidl nfsio 41446 414336 0 0 3 0x14280 nfsidl nfsio 39977 480637 0 0 3 0x14280 nfsidl nfsio 156 93751 0 0 3 0x14280 nfsidl nfsio 83264 154457 0 0 3 0x14280 nfsidl nfsio 85267 324220 0 0 3 0x14280 nfsidl nfsio 99422 440380 0 0 3 0x14280 nfsidl nfsio 21718 376922 0 0 3 0x14280 nfsidl nfsio 96339 430370 0 0 3 0x14280 nfsidl nfsio 40409 433977 0 0 3 0x14280 nfsidl nfsio 57096 437512 0 0 3 0x14280 nfsidl nfsio 67957 71382 0 0 3 0x14280 nfsidl nfsio 39988 351821 0 0 3 0x14200 bored sosplice 29536 9631 41443 0 3 0x82 nanoslp syz-executor 75732 218714 41443 0 3 0x82 nanoslp syz-executor 95282 418648 41443 0 3 0x82 nanoslp syz-executor 23973 405500 41443 0 7 0x2 syz-executor 41443 486923 68198 0 2 0x2 syz-executor 68198 98624 93779 0 3 0x10008a sigsusp ksh 93779 309385 39142 0 3 0x98 kqread sshd-session 39142 231848 56916 0 3 0x92 kqread sshd-session 56916 396766 1 0 3 0x88 kqread sshd 21791 45053 1233 74 3 0x1100092 bpf pflogd 1233 210401 1 0 3 0x80 sbwait pflogd 85862 77820 22748 73 3 0x1100090 kqread syslogd 22748 381556 1 0 3 0x100082 sbwait syslogd 83795 110517 1 0 3 0x100080 kqread resolvd 51373 383293 12233 77 3 0x100092 kqread dhcpleased 67540 134420 12233 77 3 0x100092 kqread dhcpleased 12233 330541 1 0 3 0x80 kqread dhcpleased 65304 53490 0 0 3 0x14200 bored smr 43288 32257 0 0 2 0x14200 zerothread 41113 60755 0 0 3 0x14200 aiodoned aiodoned 61527 447808 0 0 3 0x14200 syncer update 9250 253415 0 0 3 0x14200 cleaner cleaner 63691 277873 0 0 2 0x14200 reaper 37032 274444 0 0 3 0x14200 pgdaemon pagedaemon 2561 124884 0 0 3 0x14200 bored viomb 69833 196902 0 0 3 0x40014200 acpi0 acpi0 6812 505351 0 0 3 0x40014200 idle1 42243 485843 0 0 3 0x14200 bored softnet3 66464 363381 0 0 3 0x14200 bored softnet2 81219 296149 0 0 3 0x14200 bored softnet1 9609 158036 0 0 2 0x14200 softnet0 73667 206999 0 0 3 0x14200 bored systqmp 89059 460446 0 0 3 0x14200 bored systq 57572 469066 0 0 3 0x14200 tmoslp softclockmp 34192 218330 0 0 3 0x40014200 tmoslp softclock 26398 4876 0 0 3 0x40014200 idle0 1 182259 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 20195 (syz-executor) thread 0xffff80003c64c040 (121897) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836710f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 unp_externalize+0x14e #2 soreceive+0xc73 sys/kern/uipc_socket.c:1015 #3 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #4 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive rwlock sbufrcv r = 0 (0xffff80000134abe0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 soreceive+0x28e sys/kern/uipc_socket.c:876 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 83087 (syz-executor) thread 0xffff80003c5b47c8 (389347) exclusive rwlock clonelk r = 0 (0xffffffff834c6f28) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 if_clone_destroy+0x67 #3 ifioctl+0x5c5 #4 sys_ioctl+0x5c3 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 1329 (syz-executor) thread 0xffff80003c64d990 (363452) exclusive rrwlock inode r = 0 (0xfffffd806de89740) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3102 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068d3e960) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3087 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 63691 (reaper) thread 0xffff8000ffffcf38 (277873) exclusive rwlock kmmaplk r = 0 (0xffffffff835fe598) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:833 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:284 #6 reaper+0x1fe sys/kern/kern_exit.c:466 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11107K 11826K 166960K 13476 0 pcb 17 16K 18K 166960K 336 0 rtable 243 7K 8K 166960K 657 0 pf 39 18K 26K 166960K 115 0 ifaddr 44 7K 8K 166960K 84 0 ifgroup 59 2K 2K 166960K 107 0 sysctl 3 1K 1K 166960K 3 0 counters 66 36K 37K 166960K 98 0 ioctlops 0 0K 4K 166960K 1626 0 iov 0 0K 20K 166960K 257 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1527 96K 97K 166960K 2975 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 23 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 60 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 93K 166960K 1572 0 sigio 0 0K 0K 166960K 31 0 proc 63 79K 128K 166960K 837 0 subproc 72 4K 4K 166960K 119 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 161 0 in_multi 95 7K 7K 166960K 211 0 ether_multi 1 0K 0K 166960K 13 0 mrt 2 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 694 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 225 73K 87K 166960K 16196 0 UVM aobj 105 7K 7K 166960K 111 0 pinsyscall 40 80K 102K 166960K 2833 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 85 0 NDP 13 0K 1K 166960K 57 0 temp 78 6900K 6976K 166960K 46479 0 kqueue 14 22K 29K 166960K 270 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 130 0 127 1 0 1 1 0 8 0 rtentry 112 209 0 98 4 0 4 4 0 8 0 unpcb 144 1023 0 999 11 7 4 4 0 8 3 syncache 336 5 0 5 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 739 0 732 24 20 4 9 0 8 3 arp 120 48 0 16 1 0 1 1 0 8 0 inpcb 376 2038 0 2025 26 21 5 11 0 8 3 nd6 136 45 0 22 1 0 1 1 0 8 0 pkpcb 40 8 0 8 4 4 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1168 9 0 9 4 3 1 1 0 8 1 pffrag 232 10 0 5 1 0 1 1 0 482 0 pffrnode 88 10 0 5 1 0 1 1 0 8 0 pffrent 40 81 0 76 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 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 144 0 36 1 0 1 1 0 8 0 pfstkey 128 144 0 37 4 0 4 4 0 8 0 pfstate 376 143 0 36 11 0 11 11 0 8 0 pfrule 1344 31 0 21 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 831 0 350 37 6 31 31 0 8 0 art_table 32 833 0 350 4 0 4 4 0 8 0 art_node 16 205 0 107 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 57 0 47 1 0 1 1 0 8 0 shmpl 112 108 0 6 3 0 3 3 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 4272 0 2768 95 0 95 95 0 8 0 ffsino 280 4272 0 2768 109 0 109 109 0 8 0 nchpl 144 6390 0 4693 64 0 64 64 0 8 0 uvmvnodes 80 5402 0 0 111 0 111 111 0 8 0 vnodes 216 5402 0 0 301 0 301 301 0 8 0 namei 1024 23195 0 23194 3 2 1 1 0 8 0 percpumem 16 63 0 16 1 0 1 1 0 8 0 kstatmem 264 58 0 32 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 10 0 10 6 5 1 1 0 8 1 scxspl 216 18573 0 18572 14 10 4 8 1 8 3 plimitpl 152 399 0 382 1 0 1 1 0 8 0 sigapl 424 1901 0 1831 11 2 9 9 0 8 0 futexpl 64 21256 0 21251 1 0 1 1 0 8 0 knotepl 120 527 0 0 16 0 16 16 0 8 0 kqueuepl 216 563 0 552 9 4 5 5 0 8 4 pipepl 328 283 0 256 6 0 6 6 0 8 3 fdescpl 504 1857 0 1827 5 0 5 5 0 8 0 filepl 152 12904 0 12680 29 14 15 16 0 8 3 lockfpl 104 568 0 566 2 1 1 2 0 8 0 lockfspl 48 181 0 179 1 0 1 1 0 8 0 sessionpl 144 32 0 24 1 0 1 1 0 8 0 pgrppl 48 65 0 49 1 0 1 1 0 8 0 ucredpl 104 1847 0 1834 1 0 1 1 0 8 0 zombiepl 144 1963 0 1961 1 0 1 1 0 8 0 processpl 1168 1901 0 1831 7 1 6 6 0 8 0 procpl 648 4275 0 4196 9 1 8 8 0 8 0 srpgc 96 14 0 14 4 4 0 1 0 8 0 sosppl 168 7 0 7 3 2 1 1 0 8 1 sockpl 688 3219 0 3180 32 20 12 13 0 8 8 mcl64k 65536 3 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 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 36 0 0 5 0 5 5 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 266 0 0 17 0 17 17 0 8 0 bufpl 280 5042 0 141 351 0 351 351 0 8 0 anonpl 24 277332 0 272006 146 63 83 83 0 185 37 amapchunkpl 152 52831 0 52255 52 21 31 35 0 158 3 amappl16 200 6709 0 6651 90 76 14 29 0 8 8 amappl15 192 51 0 51 1 1 0 1 0 8 0 amappl14 184 147 0 136 1 0 1 1 0 8 0 amappl13 176 11 0 11 3 3 0 1 0 8 0 amappl12 168 2615 0 2586 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 52 0 52 1 1 0 1 0 8 0 amappl9 144 242 0 241 2 1 1 1 0 8 0 amappl8 136 57 0 54 1 0 1 1 0 8 0 amappl7 128 122 0 111 1 0 1 1 0 8 0 amappl6 120 235 0 231 1 0 1 1 0 8 0 amappl5 112 155 0 144 1 0 1 1 0 8 0 amappl4 104 347 0 331 1 0 1 1 0 8 0 amappl3 96 10767 0 10661 4 0 4 4 0 8 0 amappl2 88 745 0 683 2 0 2 2 0 8 0 amappl1 80 13101 0 12558 15 1 14 15 0 8 0 amappl 88 15648 0 15476 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 2 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 128 256 0 256 3 3 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 22 0 21 1 0 1 1 0 8 0 aobjpl 72 110 0 6 2 0 2 2 0 8 0 uaddrrnd 24 1857 0 1827 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1857 0 1827 1 0 1 1 0 8 0 vmmpekpl 168 15747 0 15699 3 0 3 3 0 8 0 vmmpepl 168 118336 0 116511 139 31 108 108 0 357 20 vmsppl 456 1856 0 1827 6 1 5 5 0 8 0 rwobjpl 64 38706 0 32275 107 2 105 105 0 8 0 pdppl 4096 3721 0 3654 117 46 71 85 0 8 4 pvpl 32 21728 0 0 175 0 175 175 0 265 0 pmappl 248 1856 0 1827 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 343 0 83 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff834e3ff0) 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 __mp_lock(ffffffff83670ef0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83670ef0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a4d2bb0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83670ef0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83670ef0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 vn_statfile(fffffd805df7cac8,ffff80002a4d2d00,ffff8000ffff96e8) at vn_statfile+0x40 sys/kern/vfs_vnops.c:433 sys_fstat(ffff8000ffff96e8,ffff80002a4d2eb0,ffff80002a4d2e00) at sys_fstat+0xcf sys/kern/kern_descrip.c:790 syscall(ffff80002a4d2eb0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a4d2eb0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x734daee689f0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806deb2400,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806deb23e8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806deb23e8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8009840360,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8009840360,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8009840360,fffffd8009840bd0,0,0,200,0,f91000286db5d806) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8009840360,fffffd8009840bd0,ffff80003c64c040) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd8071540200,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000134ab00,ffff80003c6af4c8,ffff80003c6af478,0,ffff80003c6af4b8,ffff80003c6af63c,8dfc53cbb9cfbbf0) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80003c64c040,7,ffff80003c6af610,0,ffff80003c6af6c0) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff80003c64c040,ffff80003c6af770,ffff80003c6af6c0) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80003c6af770) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c6af770) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84b9b071e20, count: -14