witness: lock order reversal: 1st 0xffff800010fdd1b0 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd8066cbeed8 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(fffffd8066cbeed8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd8066cbeec0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd8066cbeec0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd806ded38c0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806ded38c0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd806ded38c0,fffffd805d960e70,0,0,200,0,dc36ac9026ce88c2) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd806ded38c0,fffffd805d960e70,ffff80002a4767d8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd805e1e7100,101,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff800010fdd0d0,ffff800031d66678,ffff800031d66628,0,ffff800031d66668,ffff800031d667ec,89a7929855cc8cab) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80002a4767d8,5,ffff800031d667c0,0,ffff800031d667b0) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmmsg(ffff80002a4767d8,ffff800031d66980,ffff800031d668d0) at sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 syscall(ffff800031d66980) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031d66980) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb259583a10, count: -14 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff800031d66100 rbx 0xfffffd800433c708 rdx 0xffff80000007ea00 rcx 0xffff80002a4767d8 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff800031d65fe0 r9 0x8080808080808080 r10 0xfbcc1c098e7c1c67 r11 0x97e85e40f98139da r12 0 r13 0xfffffd8003b53f00 r14 0x3 r15 0xffffffff rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800031d660f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=268579 pid=78728 tcnt=3 stat=onproc flags process=1000000 proc=4000000 runpri=24, usrpri=50, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4762c8,0xffff80002a4779a0 process=0xffff80002a3c6238 user=0xffff800031d61000, vmspace=0xfffffd806bf22ad0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6109 412608 39983 0 2 0x100002 sh 61522 409699 82416 0 7 0 syz-executor 61522 498077 82416 0 3 0x4000080 fsleep syz-executor 61522 491272 82416 0 3 0x4000080 fsleep syz-executor 61522 135038 82416 0 2 0x4000000 syz-executor 39983 199140 67954 0 3 0x82 wait syz-executor 78728 198029 86019 0 2 0x1000000 syz-executor *78728 268579 86019 0 7 0x5000000 syz-executor 78728 71200 86019 0 2 0x5000000 syz-executor 42242 422617 76066 0 2 0 syz-executor 42242 64573 76066 0 3 0x4000080 fsleep syz-executor 32884 495084 21248 0 3 0x80 nanoslp syz-executor 32884 272958 21248 0 3 0x4000080 fsleep syz-executor 32884 181372 21248 0 3 0x4000080 lockf syz-executor 32884 23017 21248 0 3 0x4000080 lockf syz-executor 32884 228662 21248 0 3 0x4000080 fsleep syz-executor 5898 86413 1 0 3 0x100083 ttyopn getty 86019 239461 67954 0 3 0x82 nanoslp syz-executor 46268 145934 67954 0 3 0x2 biowait syz-executor 21248 353690 67954 0 3 0x82 nanoslp syz-executor 94527 165966 0 0 3 0x14200 bored sosplice 8869 405458 84288 0 3 0x100082 sbwait arp 84288 89440 1 0 3 0x10008a sigsusp sh 76066 236579 67954 0 2 0x2 syz-executor 24663 49077 67954 0 3 0x2 biowait syz-executor 8808 16363 67954 0 3 0x2 biowait syz-executor 82416 268863 67954 0 3 0x82 nanoslp syz-executor 67954 144911 24533 0 3 0x82 kqread syz-executor 24533 35827 89782 0 3 0x10008a sigsusp ksh 89782 400646 66515 0 3 0x98 kqread sshd-session 66515 2614 58612 0 3 0x92 kqread sshd-session 58612 251052 1 0 3 0x88 kqread sshd 54151 120798 14586 74 3 0x1100092 bpf pflogd 14586 266827 1 0 3 0x80 sbwait pflogd 34733 222654 7672 73 3 0x1100090 kqread syslogd 7672 398323 1 0 3 0x100082 sbwait syslogd 15840 290991 1 0 3 0x100080 kqread resolvd 90016 183020 37696 77 3 0x100092 kqread dhcpleased 35408 463936 37696 77 3 0x100092 kqread dhcpleased 37696 88927 1 0 3 0x80 kqread dhcpleased 94228 155025 0 0 3 0x14200 bored smr 84061 281279 0 0 2 0x14200 zerothread 38874 47091 0 0 3 0x14200 aiodoned aiodoned 99613 210137 0 0 3 0x14200 syncer update 77000 237894 0 0 3 0x14200 cleaner cleaner 24708 392069 0 0 3 0x14200 reaper reaper 72392 3216 0 0 3 0x14200 pgdaemon pagedaemon 33653 433762 0 0 3 0x14200 bored viomb 698 112108 0 0 3 0x40014200 acpi0 acpi0 93750 421903 0 0 3 0x40014200 idle1 21095 433015 0 0 3 0x14200 bored softnet3 87301 380495 0 0 3 0x14200 bored softnet2 62513 468643 0 0 3 0x14200 bored softnet1 95308 400664 0 0 2 0x14200 softnet0 83190 221869 0 0 3 0x14200 bored systqmp 38832 142219 0 0 3 0x14200 bored systq 8660 64825 0 0 3 0x14200 tmoslp softclockmp 87120 82298 0 0 3 0x40014200 tmoslp softclock 70196 279758 0 0 3 0x40014200 idle0 1 139032 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 78728 (syz-executor) thread 0xffff80002a4767d8 (268579) 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_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #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 (0xffff800010fdd1b0) #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_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #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 46268 (syz-executor) thread 0xffff8000ffff91d8 (145934) exclusive rrwlock inode r = 0 (0xfffffd806bee7bd0) #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 (0xfffffd806e7490b8) #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 24663 (syz-executor) thread 0xffff80002a44dbf0 (49077) exclusive rrwlock inode r = 0 (0xfffffd806bee7770) #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 (0xfffffd806c355650) #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 8808 (syz-executor) thread 0xffff80002a44d968 (16363) exclusive rrwlock inode r = 0 (0xfffffd806de44740) #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 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c355ce0) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 11116K 11432K 166960K 14858 0 pcb 17 20K 22K 166960K 895 0 rtable 131 5K 7K 166960K 1161 0 pf 36 18K 26K 166960K 283 0 ifaddr 30 5K 8K 166960K 185 0 ifgroup 55 2K 2K 166960K 246 0 sysctl 4 1K 2K 166960K 8 0 counters 64 36K 37K 166960K 186 0 ioctlops 0 0K 4K 166960K 1868 0 iov 0 0K 16K 166960K 374 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1427 90K 90K 166960K 3732 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 46 0 VM map 2 1K 1K 166960K 2 0 sem 26 32K 33K 166960K 236 0 dirhash 12 2K 3K 166960K 84 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 93K 166960K 3055 0 sigio 0 0K 0K 166960K 135 0 proc 72 91K 140K 166960K 1073 0 subproc 81 5K 5K 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 489 0 in_multi 42 3K 7K 166960K 503 0 ether_multi 1 0K 0K 166960K 35 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 1014 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 10 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 221 73K 88K 166960K 30321 0 UVM aobj 80 7K 7K 166960K 92 0 pinsyscall 43 86K 110K 166960K 4388 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 213 0 NDP 12 0K 1K 166960K 143 0 temp 81 6900K 7030K 166960K 93495 0 kqueue 13 20K 28K 166960K 489 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 120 506 0 502 9 8 1 3 0 8 0 rtentry 112 419 0 367 3 0 3 3 0 8 0 unpcb 144 2394 0 2375 22 21 1 6 0 8 0 syncache 336 10 0 10 2 2 0 1 0 8 0 tcpqe 32 4 0 4 1 1 0 1 0 8 0 tcpcb 808 1195 0 1190 38 31 7 15 0 8 6 arp 120 41 0 29 1 0 1 1 0 8 0 inpcb 376 4514 0 4504 78 70 8 15 0 8 5 nd6 136 96 0 84 2 0 2 2 0 8 0 pkpcb 40 35 0 34 9 8 1 1 0 8 0 kcovpl 48 16 0 7 1 0 1 1 0 8 0 ppxss 1168 36 0 36 4 4 0 1 0 8 0 pffrag 232 27 0 16 1 0 1 1 0 482 0 pffrnode 88 25 0 15 1 0 1 1 0 8 0 pffrent 40 138 0 127 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 246 0 132 1 0 1 1 0 8 0 pfstkey 128 248 0 134 5 0 5 5 0 8 0 pfstate 376 246 0 133 13 0 13 13 0 8 0 pfrule 1344 95 0 88 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 2023 0 1785 37 14 23 29 0 8 1 art_table 32 2026 0 1785 4 0 4 4 0 8 0 art_node 16 383 0 337 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 2 1 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 222 0 198 1 0 1 1 0 8 0 shmpl 112 89 0 13 3 0 3 3 0 8 0 dirhash 1024 65 0 48 3 0 3 3 0 8 0 dino2pl 256 6865 0 5349 96 0 96 96 0 8 0 ffsino 280 6865 0 5349 109 0 109 109 0 8 0 nchpl 144 11182 0 9482 64 0 64 64 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 42343 0 42341 7 6 1 3 0 8 0 percpumem 16 107 0 61 1 0 1 1 0 8 0 kstatmem 264 146 0 122 4 2 2 3 0 8 0 scsiplug 72 11 0 11 6 6 0 1 0 8 0 scxspl 216 35708 0 35705 17 15 2 8 1 8 1 plimitpl 152 600 0 582 1 0 1 1 0 8 0 sigapl 424 3362 0 3312 7 0 7 7 0 8 0 futexpl 64 45258 0 45253 1 0 1 1 0 8 0 knotepl 120 879 0 0 25 0 25 25 0 8 0 kqueuepl 216 1150 0 1141 15 14 1 7 0 8 0 pipepl 328 415 0 385 7 1 6 6 0 8 3 fdescpl 504 3339 0 3308 5 0 5 5 0 8 0 filepl 152 24975 0 24744 40 25 15 21 0 8 2 lockfpl 104 1677 0 1672 5 4 1 2 0 8 0 lockfspl 48 507 0 504 1 0 1 1 0 8 0 sessionpl 144 41 0 32 1 0 1 1 0 8 0 pgrppl 48 95 0 77 1 0 1 1 0 8 0 ucredpl 104 5003 0 4989 1 0 1 1 0 8 0 zombiepl 144 3743 0 3743 2 1 1 1 0 8 1 processpl 1168 3362 0 3312 5 0 5 5 0 8 0 procpl 648 8101 0 8041 9 2 7 7 0 8 0 srpgc 96 16 0 16 5 4 1 1 0 8 1 sosppl 168 18 0 18 6 6 0 1 0 8 0 sockpl 688 7586 0 7554 88 78 10 19 0 8 6 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 117 0 0 12 0 12 12 0 8 0 mtagpl 96 87 0 0 3 0 3 3 0 8 0 mbufpl 256 6598 0 0 408 0 408 408 0 8 0 bufpl 280 9319 0 3153 441 0 441 441 0 8 0 anonpl 24 432778 0 425512 124 66 58 65 0 185 3 amapchunkpl 152 99956 0 99313 73 43 30 34 0 158 2 amappl16 200 9774 0 9705 80 63 17 21 0 8 7 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 147 0 134 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 4110 0 4078 4 1 3 3 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 243 0 242 1 0 1 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 137 0 122 1 0 1 1 0 8 0 amappl6 120 256 0 250 1 0 1 1 0 8 0 amappl5 112 177 0 167 1 0 1 1 0 8 0 amappl4 104 391 0 370 1 0 1 1 0 8 0 amappl3 96 20883 0 20779 4 0 4 4 0 8 0 amappl2 88 834 0 765 2 0 2 2 0 8 0 amappl1 80 18765 0 18172 14 0 14 14 0 8 0 amappl 88 29600 0 29437 5 0 5 5 0 92 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 4 0 4 4 4 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 2 0 1 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 128 258 0 258 4 4 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 91 0 12 2 0 2 2 0 8 0 uaddrrnd 24 3339 0 3308 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3339 0 3308 1 0 1 1 0 8 0 vmmpekpl 168 25362 0 25308 4 0 4 4 0 8 0 vmmpepl 168 207313 0 205442 137 36 101 102 0 357 7 vmsppl 456 3338 0 3308 5 0 5 5 0 8 0 rwobjpl 64 58799 0 51773 121 3 118 118 0 8 0 pdppl 4096 6685 0 6616 161 86 75 85 0 8 6 pvpl 32 19323 0 0 157 1 156 156 0 265 0 pmappl 248 3338 0 3308 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 811 0 155 19 0 19 19 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(ffff80003597df40,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:149 intr_handler(ffff80003597e0b0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x734466567080, count: -9 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(fffffd8066cbeed8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd8066cbeec0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd8066cbeec0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd806ded38c0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806ded38c0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd806ded38c0,fffffd805d960e70,0,0,200,0,dc36ac9026ce88c2) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd806ded38c0,fffffd805d960e70,ffff80002a4767d8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd805e1e7100,101,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff800010fdd0d0,ffff800031d66678,ffff800031d66628,0,ffff800031d66668,ffff800031d667ec,89a7929855cc8cab) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80002a4767d8,5,ffff800031d667c0,0,ffff800031d667b0) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmmsg(ffff80002a4767d8,ffff800031d66980,ffff800031d668d0) at sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 syscall(ffff800031d66980) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031d66980) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb259583a10, count: -14