witness: lock order reversal: 1st 0xffff800010fd5b98 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd806ea28c40 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83335ced -> 0xffffffff8338047e is missing lock order [2] inode (&ip->i_lock) -> [1] 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:878 #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:765 #12 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(fffffd806ea28c40,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806ea28c28,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806ea28c28,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd80606a6030,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd80606a6030,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd80606a6030,fffffd806c714ce0,0,0,200,0,e794102288b7db) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd80606a6030,fffffd806c714ce0,ffff80002a2c0020) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806c67fa00,33,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090 soreceive(ffff800010fd5aa8,ffff800030fe8618,ffff800030fe85c8,0,ffff800030fe8600,ffff800030fe878c,b9ef1a16118bf921) at soreceive+0xc24 sys/kern/uipc_socket.c:1017 recvit(ffff80002a2c0020,4,ffff800030fe8760,0,ffff800030fe8810) at recvit+0x40b sys/kern/uipc_syscalls.c:1078 sys_recvmsg(ffff80002a2c0020,ffff800030fe88c0,ffff800030fe8810) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 syscall(ffff800030fe88c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fe88c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb54872b05e0, count: -14 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff800030fe80b0 rbx 0 rdx 0xffff80000147c900 rcx 0xffff80002a2c0020 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff800030fe7f90 r9 0x8080808080808080 r10 0x24371d6f1af1a30 r11 0x5b1317433666c7ff r12 0xfffffd8003f4a880 r13 0xfffffd8004733560 r14 0x3 r15 0xffffffff834125a3 substchar+0x3590 rip 0xffffffff8131a855 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800030fe80a0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=400133 pid=71776 tcnt=2 stat=onproc flags process=1000000 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c488fc8,0xffff80002a2c0560 process=0xffff8000fffe66a8 user=0xffff800030fe3000, vmspace=0xfffffd806c91fd78 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58013 121466 35405 60929 2 0x10 syz-executor 58013 150279 35405 60929 3 0x4000090 fsleep syz-executor 67466 396148 28426 0 2 0 syz-executor 67466 370233 28426 0 3 0x4000080 fsleep syz-executor 90725 435478 98128 0 2 0 syz-executor 90725 181591 98128 0 3 0x4000080 fsleep syz-executor 71776 371883 37732 0 2 0x1000000 syz-executor *71776 400133 37732 0 7 0x5000000 syz-executor 42693 132128 39687 0 2 0x2 syz-executor 59518 71957 39687 0 2 0xc82 syz-executor 69069 432896 0 0 3 0x14200 acct acct 98814 424172 70788 0 3 0x100082 sbwait arp 70788 479503 52167 0 3 0x10008a sigsusp sh 28426 465740 39687 0 3 0x82 nanoslp syz-executor 44060 175848 39687 0 2 0x2 syz-executor 37732 475793 39687 0 2 0xc82 syz-executor 98128 60881 39687 0 3 0x82 nanoslp syz-executor 52167 85593 39687 0 3 0x82 wait syz-executor 35405 310430 39687 0 2 0xc82 syz-executor 39687 201240 56345 0 3 0x82 kqread syz-executor 56345 429911 9713 0 3 0x10008a sigsusp ksh 9713 316388 63466 0 3 0x98 kqread sshd-session 63466 274729 1980 0 3 0x92 kqread sshd-session 63379 446124 1 0 3 0x100083 ttyopn getty 1980 32459 1 0 3 0x88 kqread sshd 85313 288932 75758 74 3 0x1100092 bpf pflogd 75758 59873 1 0 3 0x80 sbwait pflogd 31437 30078 82347 73 2 0x1100010 syslogd 82347 450587 1 0 3 0x100082 sbwait syslogd 88356 508996 1 0 3 0x100080 kqread resolvd 8737 41674 75482 77 3 0x100092 kqread dhcpleased 17956 83307 75482 77 3 0x100092 kqread dhcpleased 75482 4264 1 0 3 0x80 kqread dhcpleased 95899 27884 0 0 3 0x14200 bored smr 43483 53550 0 0 2 0x14200 zerothread 79938 503319 0 0 3 0x14200 aiodoned aiodoned 80851 196587 0 0 3 0x14200 syncer update 97391 204799 0 0 3 0x14200 cleaner cleaner 29244 411055 0 0 3 0x14200 reaper reaper 25453 489697 0 0 3 0x14200 pgdaemon pagedaemon 23540 271012 0 0 3 0x14200 bored viomb 16862 78668 0 0 3 0x40014200 acpi0 acpi0 41742 227517 0 0 3 0x40014200 idle1 41390 278161 0 0 3 0x14200 bored softnet1 38167 500635 0 0 2 0x14200 softnet0 87678 352188 0 0 3 0x14200 smrbar systqmp 84578 408190 0 0 3 0x14200 bored systq 42854 256142 0 0 3 0x14200 tmoslp softclockmp 95198 46160 0 0 3 0x40014200 tmoslp softclock 1588 302767 0 0 3 0x40014200 idle0 1 443687 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 71776 (syz-executor) thread 0xffff80002a2c0020 (400133) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8398a918) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 unp_externalize+0x155 sys/kern/uipc_usrreq.c:-1 #2 soreceive+0xc24 sys/kern/uipc_socket.c:1017 #3 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #4 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #6 Xsyscall+0x128 exclusive rwlock sbufrcv r = 0 (0xffff800010fd5b98) #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 soreceive+0x27d sys/kern/uipc_socket.c:878 #4 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 42693 (syz-executor) thread 0xffff80003c489a28 (132128) exclusive rrwlock inode r = 0 (0xfffffd806ea2f9e0) #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 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:765 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805ef89460) #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 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:765 #13 Xsyscall+0x128 Process 44060 (syz-executor) thread 0xffff80002a2bf4d8 (175848) exclusive rrwlock inode r = 0 (0xfffffd805ef89210) #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 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:765 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d10aa18) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 #9 Xsyscall+0x128 Process 31437 (syslogd) thread 0xffff80002a272fa0 (30078) exclusive rrwlock inode r = 0 (0xfffffd806ee727f0) #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 sys_fsync+0x144 sys/kern/vfs_syscalls.c:2940 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 87678 (systqmp) thread 0xffff8000ffffe298 (352188) shared rwlock systqmp r = 0 (0xffffffff837da3f8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11158K 11480K 166960K 12072 0 pcb 18 14K 15K 166960K 91 0 rtable 240 7K 8K 166960K 459 0 pf 34 17K 24K 166960K 85 0 ifaddr 41 7K 7K 166960K 67 0 ifgroup 55 2K 2K 166960K 99 0 sysctl 3 1K 9K 166960K 8 0 counters 68 36K 37K 166960K 106 0 ioctlops 0 0K 4K 166960K 1577 0 iov 0 0K 12K 166960K 13 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1431 90K 91K 166960K 1811 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 121 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 114K 166960K 555 0 sigio 0 0K 0K 166960K 3 0 proc 72 115K 164K 166960K 621 0 subproc 72 4K 4K 166960K 92 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 57 0 in_multi 89 6K 6K 166960K 129 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 447 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 223 160K 179K 166960K 6745 0 UVM aobj 20 4K 4K 166960K 21 0 pinsyscall 42 84K 106K 166960K 1723 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 24 0 NDP 12 0K 1K 166960K 42 0 temp 51 8673K 8744K 166960K 22988 0 kqueue 13 20K 27K 166960K 86 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 69 0 65 1 0 1 1 0 8 0 rtentry 176 141 0 34 5 0 5 5 0 8 0 unpcb 144 269 0 250 2 0 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 85 0 80 1 0 1 1 0 8 0 arp 136 23 0 5 1 0 1 1 0 8 0 inpcb 328 433 0 424 7 0 7 7 0 8 6 nd6 152 29 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1192 11 0 11 1 0 1 1 0 8 1 pppxif 1504 5 0 5 1 0 1 1 0 8 1 pffrag 232 7 0 2 1 0 1 1 0 482 0 pffrnode 88 5 0 1 1 0 1 1 0 8 0 pffrent 40 10 0 5 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 2 0 2 1 0 1 1 0 8 1 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 39 0 0 1 0 1 1 0 8 0 pfstkey 128 39 0 0 2 0 2 2 0 8 0 pfstate 448 39 0 0 5 0 5 5 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 580 0 145 28 0 28 28 0 8 0 art_table 40 582 0 145 5 0 5 5 0 8 0 art_node 32 139 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 119 0 109 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 2348 0 834 96 0 96 96 0 8 0 ffsino 296 2348 0 834 118 0 118 118 0 8 0 nchpl 144 3061 0 1359 64 0 64 64 0 8 0 vnodes 216 2719 0 0 152 0 152 152 0 8 0 namei 1024 9930 0 9930 1 0 1 1 0 8 1 percpumem 16 68 0 19 1 0 1 1 0 8 0 kstatmem 264 50 0 24 3 0 3 3 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 12049 0 12049 4 2 2 2 1 8 2 plimitpl 152 109 0 92 1 0 1 1 0 8 0 sigapl 424 875 0 827 8 1 7 8 0 8 0 knotepl 120 312 0 0 10 0 10 10 0 8 0 kqueuepl 224 128 0 119 1 0 1 1 0 8 0 pipepl 344 145 0 118 3 0 3 3 0 8 0 fdescpl 528 838 0 808 3 0 3 3 0 8 0 filepl 160 4045 0 3825 13 0 13 13 0 8 3 lockfpl 104 141 0 139 1 0 1 1 0 8 0 lockfspl 48 66 0 64 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 381 0 367 1 0 1 1 0 8 0 zombiepl 144 828 0 827 1 0 1 1 0 8 0 processpl 1232 875 0 827 6 0 6 6 0 8 0 procpl 664 1541 0 1489 8 2 6 8 0 8 0 sockpl 752 818 0 786 10 0 10 10 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 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 114 0 0 15 0 15 15 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 25 0 0 1 0 1 1 0 8 0 mbufpl 256 236 0 0 15 0 15 15 0 8 0 bufpl 280 5399 0 134 377 0 377 377 0 8 0 anonpl 32 9481 0 0 77 0 77 77 0 246 0 amapchunkpl 152 21881 0 21468 28 0 28 28 0 158 7 amappl16 200 3383 0 3359 24 12 12 21 0 8 8 amappl15 192 32 0 32 1 1 0 1 0 8 0 amappl14 184 21 0 20 1 0 1 1 0 8 0 amappl13 176 446 0 443 1 0 1 1 0 8 0 amappl12 168 1207 0 1165 3 0 3 3 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 53 0 39 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 86 0 85 1 0 1 1 0 8 0 amappl6 120 314 0 299 1 0 1 1 0 8 0 amappl5 112 75 0 65 1 0 1 1 0 8 0 amappl4 104 436 0 404 1 0 1 1 0 8 0 amappl3 96 3623 0 3542 3 0 3 3 0 8 0 amappl2 88 963 0 890 2 0 2 2 0 8 0 amappl1 80 10987 0 10371 15 0 15 15 0 8 0 amappl 88 5931 0 5789 5 0 5 5 0 92 0 uvmvnodes 80 109 0 0 3 0 3 3 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 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 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 20 0 1 1 0 1 1 0 8 0 uaddrrnd 24 838 0 808 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 838 0 808 1 0 1 1 0 8 0 vmmpekpl 168 8377 0 8334 3 0 3 3 0 8 0 vmmpepl 168 60733 0 58902 104 0 104 104 0 357 12 vmsppl 488 837 0 807 5 0 5 5 0 8 0 rwobjpl 80 19463 0 18397 30 0 30 30 0 8 2 pdppl 4096 1683 0 1614 103 30 73 85 0 8 4 pvpl 32 15679 0 0 129 2 127 127 0 265 0 pmappl 256 837 0 807 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 285 0 33 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(fffffd806ea28c40,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806ea28c28,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806ea28c28,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd80606a6030,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd80606a6030,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd80606a6030,fffffd806c714ce0,0,0,200,0,e794102288b7db) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd80606a6030,fffffd806c714ce0,ffff80002a2c0020) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806c67fa00,33,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090 soreceive(ffff800010fd5aa8,ffff800030fe8618,ffff800030fe85c8,0,ffff800030fe8600,ffff800030fe878c,b9ef1a16118bf921) at soreceive+0xc24 sys/kern/uipc_socket.c:1017 recvit(ffff80002a2c0020,4,ffff800030fe8760,0,ffff800030fe8810) at recvit+0x40b sys/kern/uipc_syscalls.c:1078 sys_recvmsg(ffff80002a2c0020,ffff800030fe88c0,ffff800030fe8810) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 syscall(ffff800030fe88c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fe88c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb54872b05e0, count: -14 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(ffffffff8398a710) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8398a710) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff80003c488038,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c488038,ffff800030feeab0,ffff800030feea00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800030feeab0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030feeab0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x732c5940ef30, count: -8