witness: lock order reversal: 1st 0xffff80002a27acc8 fdlock (&newfdp->fd_fd.fd_lock) 2nd 0xfffffd806e138468 inode (&ip->i_lock) lock order [1] fdlock (&newfdp->fd_fd.fd_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff833525b3 -> 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] fdlock (&newfdp->fd_fd.fd_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 unp_externalize+0x3cf sys/kern/uipc_usrreq.c:1074 #2 soreceive+0xc24 sys/kern/uipc_socket.c:1009 #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:746 #6 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(fffffd806e138468,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e138450,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e138450,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd806e137990,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd806e137990,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_closefile(fffffd806c13f480,ffff8000333e62c0) at vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c13f480,ffff8000333e62c0) at vn_closefile+0x111 sys/kern/vfs_vnops.c:615 fdrop(fffffd806c13f480,ffff8000333e62c0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 knote_remove(ffff8000333e62c0,fffffd806efe1d20,fffffd806efe1db0,3,0) at knote_remove+0x449 sys/kern/kern_event.c:2168 knote_fdclose(ffff8000333e62c0,3) at knote_fdclose+0xf9 sys/kern/kern_event.c:2203 fdrelease(ffff8000333e62c0,3) at fdrelease+0xf9 sys/kern/kern_descrip.c:760 syscall(ffff80002a334210) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a334210) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d8f689940, count: -13 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80002a333d20 rbx 0 rdx 0xffff8000014e7940 rcx 0xffff8000333e62c0 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80002a333c00 r9 0x8080808080808080 r10 0x27127b5390697fa4 r11 0x245a4310461bd8a8 r12 0xfffffd8003efac80 r13 0xfffffd80046e85e8 r14 0x3 r15 0xffffffff833e2b64 substchar+0xf1da rip 0xffffffff831577a5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a333d10 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=245497 pid=41810 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003840bca8,0xffff8000333e7260 process=0xffff80003c4249c0 user=0xffff80002a32f000, vmspace=0xfffffd806a82c5d8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21120 475063 6014 0 2 0 syz-executor 21120 285566 6014 0 3 0x4000080 kqread syz-executor 21120 355068 6014 0 3 0x4000080 fsleep syz-executor 24513 429431 45716 0 2 0 syz-executor 24513 232462 45716 0 3 0x4000000 smrbar syz-executor 41810 34714 10688 0 2 0 syz-executor *41810 245497 10688 0 7 0x4000000 syz-executor 41810 180961 10688 0 3 0x4000080 fsleep syz-executor 42345 392808 97214 0 3 0x80 nanoslp syz-executor 42345 314984 97214 0 3 0x4000080 bell syz-executor 42345 16230 97214 0 3 0x4000080 fsleep syz-executor 2980 468549 25165 0 2 0 syz-executor 2980 115235 25165 0 3 0x4000000 biowait syz-executor 2980 293443 25165 0 3 0x4000000 inode syz-executor 2980 418438 25165 0 2 0x4000000 syz-executor 45716 372204 46521 0 2 0x2 syz-executor 9296 215885 0 0 3 0x14200 acct acct 97214 60232 46521 0 3 0x82 nanoslp syz-executor 16351 71393 46521 0 3 0x2 biowait syz-executor 60895 90032 46521 0 3 0x82 nanoslp syz-executor 27532 130979 46521 0 3 0x82 nanoslp syz-executor 35842 346092 1 0 3 0x100083 ttyin getty 10688 520145 46521 0 3 0x82 nanoslp syz-executor 38917 289193 0 0 3 0x14200 bored sosplice 6014 477606 46521 0 3 0x82 nanoslp syz-executor 25165 66814 46521 0 3 0x82 nanoslp syz-executor 46521 282920 19425 0 3 0x82 kqread syz-executor 19425 353239 72669 0 3 0x10008a sigsusp ksh 72669 314122 12302 0 3 0x98 kqread sshd-session 12302 308939 7564 0 3 0x92 kqread sshd-session 7564 61954 1 0 3 0x88 kqread sshd 10482 159470 123 74 3 0x1100092 bpf pflogd 123 150451 1 0 3 0x80 sbwait pflogd 50691 465921 35242 73 3 0x1100090 kqread syslogd 35242 457306 1 0 3 0x100082 sbwait syslogd 79359 357764 1 0 3 0x100080 kqread resolvd 86292 295646 52503 77 3 0x100092 kqread dhcpleased 46552 75443 52503 77 3 0x100092 kqread dhcpleased 52503 175564 1 0 3 0x80 kqread dhcpleased 36364 254399 0 0 3 0x14200 bored smr 39772 176214 0 0 2 0x14200 zerothread 70310 353679 0 0 3 0x14200 aiodoned aiodoned 45277 77355 0 0 3 0x14200 syncer update 58039 191881 0 0 3 0x14200 cleaner cleaner 75117 96379 0 0 3 0x14200 reaper reaper 89297 427965 0 0 3 0x14200 pgdaemon pagedaemon 96425 108694 0 0 3 0x14200 bored viomb 74248 286884 0 0 3 0x40014200 acpi0 acpi0 77291 125929 0 0 7 0x40014200 idle1 34320 85034 0 0 3 0x14200 bored softnet1 61090 42913 0 0 3 0x14200 bored softnet0 48321 428421 0 0 3 0x14200 bored systqmp 35628 283518 0 0 3 0x14200 bored systq 8416 131609 0 0 3 0x14200 tmoslp softclockmp 47652 6149 0 0 3 0x40014200 tmoslp softclock 30803 183975 0 0 3 0x40014200 idle0 1 295862 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 24513 (syz-executor) thread 0xffff80003840a2b8 (232462) exclusive rwlock clonelk r = 0 (0xffffffff837bee88) #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 if_clone_destroy+0x67 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2092 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #6 Xsyscall+0x128 Process 41810 (syz-executor) thread 0xffff8000333e62c0 (245497) 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 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x121 sys/kern/kern_descrip.c:1280 #3 knote_remove+0x449 sys/kern/kern_event.c:2168 #4 knote_fdclose+0xf9 sys/kern/kern_event.c:2203 #5 fdrelease+0xf9 sys/kern/kern_descrip.c:760 #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 exclusive rwlock fdlock r = 0 (0xffff80002a27acc8) #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 sys_close+0xd0 sys/kern/kern_descrip.c:778 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #4 Xsyscall+0x128 Process 2980 (syz-executor) thread 0xffff80003840aa80 (115235) exclusive rrwlock inode r = 0 (0xfffffd805bcc56b0) #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 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 Process 16351 (syz-executor) thread 0xffff8000fffee548 (71393) exclusive rrwlock inode r = 0 (0xfffffd806ea1fe88) #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 (0xfffffd805bcc57d8) #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 10242 11176K 11571K 166960K 15309 0 pcb 18 17K 21K 166960K 806 0 rtable 164 12K 13K 166960K 681 0 pf 34 17K 82K 166960K 339 0 ifaddr 30 5K 8K 166960K 199 0 ifgroup 52 2K 2K 166960K 334 0 sysctl 4 1K 9K 166960K 23 0 counters 70 36K 38K 166960K 660 0 ioctlops 0 0K 4K 166960K 2343 0 iov 0 0K 28K 166960K 308 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1473 93K 93K 166960K 3691 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 620K 166960K 32 0 VM map 2 1K 1K 166960K 2 0 sem 32 10K 11K 166960K 75 0 dirhash 12 2K 3K 166960K 87 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 2536 0 sigio 1 0K 0K 166960K 105 0 proc 72 115K 164K 166960K 1094 0 subproc 72 4K 4K 166960K 171 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 277 0 in_multi 51 3K 7K 166960K 287 0 ether_multi 1 0K 0K 166960K 17 0 mrt 1 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 271 1208K 1208K 166960K 271 0 exec 0 0K 1K 166960K 1054 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 9 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 255 160K 182K 166960K 23331 0 UVM aobj 22 2K 3K 166960K 24 0 pinsyscall 42 84K 102K 166960K 3888 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 188 0 NDP 13 0K 1K 166960K 151 0 temp 86 8656K 8728K 166960K 119141 0 kqueue 15 24K 35K 166960K 541 0 SYN cache 2 8K 16K 166960K 3 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 120 221 0 217 2 0 2 2 0 8 1 rtentry 176 235 0 185 5 1 4 5 0 8 0 unpcb 144 1765 0 1744 14 10 4 6 0 8 3 syncache 336 8 0 8 5 5 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 736 1162 0 1152 25 20 5 7 0 8 3 arp 136 26 0 20 1 0 1 1 0 8 0 inpcb 328 3260 0 3245 30 23 7 10 0 8 5 nd6 152 43 0 34 1 0 1 1 0 8 0 pkpcb 40 23 0 23 3 2 1 1 0 8 1 kcovpl 48 19 0 11 1 0 1 1 0 8 0 ppxss 1192 266 0 263 1 0 1 1 0 8 0 pppxif 1504 8 0 8 5 4 1 1 0 8 1 pffrag 232 21 0 11 1 0 1 1 0 482 0 pffrnode 88 15 0 6 1 0 1 1 0 8 0 pffrent 40 36 0 26 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 24 153 0 62 1 0 1 1 0 8 0 pfstkey 128 153 0 62 3 0 3 3 0 8 0 pfstate 384 153 0 62 10 0 10 10 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1138 0 930 34 15 19 28 0 8 3 art_table 40 1142 0 930 5 0 5 5 0 8 0 art_node 32 234 0 191 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 17 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 62 0 32 1 0 1 1 0 8 0 shmpl 112 21 0 2 1 0 1 1 0 8 0 dirhash 1024 67 0 50 3 0 3 3 0 8 0 dino2pl 256 6052 0 4532 96 0 96 96 0 8 0 ffsino 296 6052 0 4532 118 0 118 118 0 8 0 nchpl 144 9340 0 7616 66 1 65 65 0 8 0 rtmask 32 37 0 36 6 5 1 1 0 8 0 uvmvnodes 80 5673 0 0 116 0 116 116 0 8 0 vnodes 216 5673 0 0 316 0 316 316 0 8 0 namei 1024 35248 0 35247 2 1 1 2 0 8 0 percpumem 16 345 0 295 1 0 1 1 0 8 0 kstatmem 264 228 0 202 5 2 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 4 4 0 1 0 8 0 scxspl 216 68312 0 68310 11 10 1 8 1 8 0 plimitpl 152 766 0 747 1 0 1 1 0 8 0 sigapl 424 2800 0 2751 7 1 6 7 0 8 0 knotepl 120 619 0 0 18 0 18 18 0 8 0 kqueuepl 224 1232 0 1221 15 13 2 5 0 8 1 pipepl 344 758 0 731 14 7 7 9 0 8 3 fdescpl 528 2771 0 2740 3 0 3 3 0 8 0 filepl 160 20949 0 20719 34 16 18 21 0 8 4 lockfpl 104 1344 0 1340 3 1 2 2 0 8 1 lockfspl 48 539 0 535 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 86 0 69 1 0 1 1 0 8 0 ucredpl 104 3086 0 3073 1 0 1 1 0 8 0 zombiepl 144 2753 0 2751 1 0 1 1 0 8 0 processpl 1232 2800 0 2751 5 0 5 5 0 8 0 procpl 664 6405 0 6346 6 0 6 6 0 8 0 sosppl 168 19 0 19 5 4 1 1 0 8 1 sockpl 752 5354 0 5314 50 38 12 18 0 8 6 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 45 0 0 6 0 6 6 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1165 0 0 73 0 73 73 0 8 0 bufpl 280 29045 0 22902 440 0 440 440 0 8 0 anonpl 32 14334 0 0 116 0 116 116 0 246 0 amapchunkpl 152 82757 0 82132 59 21 38 40 0 158 11 amappl16 200 10234 0 10090 37 15 22 27 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 142 0 130 1 0 1 1 0 8 0 amappl13 176 4 0 3 1 0 1 1 0 8 0 amappl12 168 3592 0 3561 4 2 2 3 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 252 0 251 2 1 1 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 135 0 123 1 0 1 1 0 8 0 amappl6 120 289 0 286 1 0 1 1 0 8 0 amappl5 112 170 0 160 1 0 1 1 0 8 0 amappl4 104 319 0 298 1 0 1 1 0 8 0 amappl3 96 14391 0 14287 4 1 3 3 0 8 0 amappl2 88 3037 0 2959 2 0 2 2 0 8 0 amappl1 80 19280 0 18678 17 2 15 15 0 8 0 amappl 88 22064 0 21881 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 255 0 255 3 2 1 1 0 8 1 dma64 64 8 0 8 3 3 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 23 0 2 1 0 1 1 0 8 0 uaddrrnd 24 2771 0 2740 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2771 0 2740 1 0 1 1 0 8 0 vmmpekpl 168 21227 0 21163 4 0 4 4 0 8 0 vmmpepl 168 177247 0 175102 120 11 109 110 0 357 4 vmsppl 488 2770 0 2740 5 0 5 5 0 8 0 rwobjpl 80 51692 0 44923 145 0 145 145 0 8 1 pdppl 4096 5550 0 5480 130 56 74 84 0 8 4 pvpl 32 22492 0 0 182 1 181 181 0 265 0 pmappl 256 2770 0 2740 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 405 0 101 9 0 9 9 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(fffffd806e138468,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd806e138450,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd806e138450,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd806e137990,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd806e137990,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_closefile(fffffd806c13f480,ffff8000333e62c0) at vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c13f480,ffff8000333e62c0) at vn_closefile+0x111 sys/kern/vfs_vnops.c:615 fdrop(fffffd806c13f480,ffff8000333e62c0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 knote_remove(ffff8000333e62c0,fffffd806efe1d20,fffffd806efe1db0,3,0) at knote_remove+0x449 sys/kern/kern_event.c:2168 knote_fdclose(ffff8000333e62c0,3) at knote_fdclose+0xf9 sys/kern/kern_event.c:2203 fdrelease(ffff8000333e62c0,3) at fdrelease+0xf9 sys/kern/kern_descrip.c:760 syscall(ffff80002a334210) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a334210) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d8f689940, count: -13 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5