witness: lock order reversal: 1st 0xffff80000132b218 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd8066a2bca8 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff8312c38c -> 0xffffffff830d64b2 is missing lock order [2] inode (&ip->i_lock) -> [3] 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 lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:537 #2 sosplice+0x40d sys/kern/uipc_socket.c:1358 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1221 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #5 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(fffffd8066a2bca8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd8066a2bc90,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd8066a2bc90,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8062c73968,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8062c73968,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8062c73968,2001) at vget+0x2bd sys/kern/vfs_subr.c:694 ktrwriteraw(ffff80003c5b27c8,fffffd8062c73968,fffffd807f7d37b8,ffff80003c5e3310,ffff80003c5e32f0) at ktrwriteraw+0x172 sys/kern/kern_ktrace.c:688 ktrnamei(ffff80003c5b27c8,ffff80002a3e5400) at ktrnamei+0x148 sys/kern/kern_ktrace.c:222 namei(ffff80003c5e3448) at namei+0x2a2 sys/kern/vfs_lookup.c:170 unp_connect(ffff80000132b058,fffffd806b749c00,ffff80003c5b27c8) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000132b058,fffffd80665a0f00,fffffd806b749c00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000132b058,fffffd806b749c00,ffff80003c5e36c8,0,0,0) at sosend+0x804 sendit(ffff80003c5b27c8,3,ffff80003c5e3840,0,ffff80003c5e3900) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff80003c5b27c8,ffff80003c5e39b0,ffff80003c5e3900) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c5e39b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5e39b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb6801d0f50, count: -17 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c5e2f60 rbx 0xfffffd800433c680 rdx 0xffff80000128ca40 rcx 0xffff80003c5b27c8 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c5e2e40 r9 0x8080808080808080 r10 0x393142c6b970efa r11 0x2af4dd4bcdf0858d r12 0 r13 0xfffffd8003b53f00 r14 0x3 r15 0xffffffff rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5e2f50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=215196 pid=13173 tcnt=2 stat=onproc flags process=0 proc=4000001 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffbbe8,0xffffffff8367c150 process=0xffff800032957db8 user=0xffff80003c5de000, vmspace=0xfffffd806ec9b008 estcpu=32, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13173 247916 82896 0 2 0 syz-executor *13173 215196 82896 0 7 0x4000001 syz-executor 6230 379394 14651 0 2 0 syz-executor 6230 315261 14651 0 3 0x4000080 fsleep syz-executor 6230 342995 14651 0 3 0x4000080 pipewr syz-executor 25092 454857 21180 0 3 0 vmmaplk syz-executor 25092 466689 21180 0 3 0x4000000 physio syz-executor 25092 184227 21180 0 2 0x4000000 syz-executor 18950 427460 1 0 3 0x100083 ttyin getty 73860 117861 0 0 3 0x14200 bored sosplice 13638 117819 69332 0 2 0x2 syz-executor 20805 260263 69332 0 3 0x82 wait syz-executor 82896 239835 69332 0 3 0x82 nanoslp syz-executor 10991 105008 69332 0 3 0x2 biowait syz-executor 21180 166799 69332 0 3 0x82 nanoslp syz-executor 35324 364183 69332 0 2 0x2 syz-executor 14651 176469 69332 0 3 0x82 nanoslp syz-executor 25433 141120 69332 0 3 0x82 nanoslp syz-executor 69332 93751 18338 0 7 0x2 syz-executor 18338 497661 19911 0 3 0x10008a sigsusp ksh 19911 366081 54718 0 3 0x98 kqread sshd-session 54718 504428 43150 0 3 0x92 kqread sshd-session 43150 215713 1 0 3 0x88 kqread sshd 65683 505730 59295 74 3 0x1100092 bpf pflogd 59295 190251 1 0 3 0x80 sbwait pflogd 28162 70820 86377 73 3 0x1100010 ffs_fsync syslogd 86377 3607 1 0 3 0x100082 sbwait syslogd 16062 276204 1 0 3 0x100080 kqread resolvd 98703 19231 43985 77 3 0x100092 kqread dhcpleased 89078 509122 43985 77 3 0x100092 kqread dhcpleased 43985 118523 1 0 3 0x80 kqread dhcpleased 36930 162019 0 0 3 0x14200 bored smr 94290 517917 0 0 2 0x14200 zerothread 97639 500826 0 0 3 0x14200 aiodoned aiodoned 78480 380688 0 0 3 0x14200 syncer update 88577 264777 0 0 3 0x14200 cleaner cleaner 76908 321693 0 0 3 0x14200 reaper reaper 47698 443562 0 0 3 0x14200 pgdaemon pagedaemon 74421 277683 0 0 3 0x14200 bored viomb 64232 177909 0 0 3 0x40014200 acpi0 acpi0 22339 465518 0 0 3 0x40014200 idle1 53405 19611 0 0 3 0x14200 bored softnet3 8552 344521 0 0 3 0x14200 bored softnet2 43538 243776 0 0 3 0x14200 bored softnet1 51456 174320 0 0 2 0x14200 softnet0 67221 347410 0 0 3 0x14200 bored systqmp 6432 200946 0 0 3 0x14200 bored systq 44045 149239 0 0 3 0x14200 tmoslp softclockmp 82022 335921 0 0 3 0x40014200 tmoslp softclock 14176 84756 0 0 3 0x40014200 idle0 1 25706 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 13173 (syz-executor) thread 0xffff80003c5b27c8 (215196) exclusive kernel_lock &kernel_lock r = 1 (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_connect+0x26c sys/kern/uipc_usrreq.c:868 #2 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 #3 sosend+0x804 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #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 exclusive rwlock sbufsnd r = 0 (0xffff80000132b218) #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 sosend+0x2e2 sys/kern/uipc_socket.c:625 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #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 25092 (syz-executor) thread 0xffff80003c5b2540 (466689) shared rwlock vmmaplk r = 0 (0xfffffd8062bc8da0) #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_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:172 #3 physio+0x277 sys/kern/kern_physio.c:139 #4 spec_read+0x155 sys/kern/spec_vnops.c:215 #5 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #6 vn_read+0x17b sys/kern/vfs_vnops.c:369 #7 dofilereadv+0x230 sys/kern/sys_generic.c:252 #8 sys_pread+0xae sys/kern/vfs_syscalls.c:3296 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 25092 (syz-executor) thread 0xffff80003c5b22b8 (184227) shared rwlock vmmaplk r = 0 (0xfffffd8062bc8da0) #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_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:172 #3 physio+0x277 sys/kern/kern_physio.c:139 #4 spec_read+0x155 sys/kern/spec_vnops.c:215 #5 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #6 vn_read+0x17b sys/kern/vfs_vnops.c:369 #7 dofilereadv+0x230 sys/kern/sys_generic.c:252 #8 sys_pread+0xae sys/kern/vfs_syscalls.c:3296 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 13638 (syz-executor) thread 0xffff8000ffff82a8 (117819) exclusive rrwlock inode r = 0 (0xfffffd806bf1e0e0) #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 (0xfffffd806c36edf8) #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 Process 10991 (syz-executor) thread 0xffff8000ffff91d8 (105008) exclusive rrwlock inode r = 0 (0xfffffd806df9a2e0) #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 (0xfffffd806bf1e540) #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 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 28162 (syslogd) thread 0xffff8000ffffb6d8 (70820) exclusive rrwlock inode r = 0 (0xfffffd806e34a510) #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2929 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10230 11166K 11551K 166960K 12000 0 pcb 17 14K 16K 166960K 178 0 rtable 222 7K 8K 166960K 395 0 pf 37 18K 21K 166960K 73 0 ifaddr 41 7K 7K 166960K 59 0 ifgroup 59 2K 2K 166960K 81 0 sysctl 1 1K 1K 166960K 1 0 counters 66 36K 36K 166960K 82 0 ioctlops 0 0K 4K 166960K 1638 0 iov 0 0K 16K 166960K 17 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1370 86K 86K 166960K 1631 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 0K 166960K 18 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 14 49K 93K 166960K 481 0 sigio 0 0K 0K 166960K 6 0 proc 72 91K 128K 166960K 576 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 156 0 in_multi 85 6K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 408 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 196 72K 74K 166960K 6014 0 UVM aobj 9 2K 2K 166960K 10 0 pinsyscall 39 78K 102K 166960K 1608 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 13 0K 1K 166960K 40 0 temp 52 6892K 6971K 166960K 19591 0 kqueue 13 20K 27K 166960K 75 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 51 0 48 1 0 1 1 0 8 0 rtentry 112 120 0 19 4 0 4 4 0 8 0 unpcb 144 274 0 254 4 1 3 3 0 8 2 syncache 336 6 0 6 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 147 0 142 7 0 7 7 0 8 6 arp 120 19 0 1 1 0 1 1 0 8 0 inpcb 376 502 0 494 8 0 8 8 0 8 6 nd6 136 26 0 6 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 6 0 6 2 1 1 1 0 8 1 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 6 0 3 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 37 0 1 1 0 1 1 0 8 0 pfstkey 128 37 0 1 2 0 2 2 0 8 0 pfstate 376 37 0 1 4 0 4 4 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 509 0 111 29 1 28 29 0 8 1 art_table 32 510 0 111 4 0 4 4 0 8 0 art_node 16 119 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 2 1 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 15 0 5 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2160 0 645 95 0 95 95 0 8 0 ffsino 280 2160 0 645 109 0 109 109 0 8 0 nchpl 144 2862 0 2312 63 31 32 63 0 8 8 uvmvnodes 80 2433 0 0 50 0 50 50 0 8 0 vnodes 216 2433 0 0 136 0 136 136 0 8 0 namei 1024 9031 0 9030 2 1 1 1 0 8 0 percpumem 16 55 0 8 1 0 1 1 0 8 0 kstatmem 264 42 0 16 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 8499 0 8496 6 2 4 4 1 8 3 plimitpl 152 100 0 82 1 0 1 1 0 8 0 sigapl 424 793 0 744 8 2 6 7 0 8 0 futexpl 64 5166 0 5165 1 0 1 1 0 8 0 knotepl 120 558 0 0 17 0 17 17 0 8 0 kqueuepl 216 174 0 165 5 0 5 5 0 8 4 pipepl 328 171 0 143 6 0 6 6 0 8 3 fdescpl 504 774 0 746 6 1 5 5 0 8 1 filepl 152 3937 0 3716 18 3 15 15 0 8 5 lockfpl 104 98 0 94 1 0 1 1 0 8 0 lockfspl 48 45 0 41 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 474 0 460 1 0 1 1 0 8 0 zombiepl 144 747 0 744 2 1 1 1 0 8 0 processpl 1168 793 0 744 5 1 4 5 0 8 0 procpl 648 1357 0 1303 7 1 6 6 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 688 836 0 805 11 2 9 9 0 8 5 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 131 0 0 17 0 17 17 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 171 0 0 11 0 11 11 0 8 0 bufpl 280 3088 0 131 212 0 212 212 0 8 0 anonpl 24 128841 0 125431 46 23 23 45 0 185 0 amapchunkpl 152 18723 0 18316 29 4 25 25 0 158 3 amappl16 200 2449 0 2416 17 14 3 14 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 125 0 113 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1431 0 1403 3 1 2 2 0 8 0 amappl11 160 64 0 50 1 0 1 1 0 8 0 amappl10 152 31 0 31 1 1 0 1 0 8 0 amappl9 144 248 0 247 1 0 1 1 0 8 0 amappl8 136 94 0 90 1 0 1 1 0 8 0 amappl7 128 110 0 98 1 0 1 1 0 8 0 amappl6 120 186 0 183 1 0 1 1 0 8 0 amappl5 112 125 0 116 1 0 1 1 0 8 0 amappl4 104 341 0 322 1 0 1 1 0 8 0 amappl3 96 3653 0 3562 4 0 4 4 0 8 1 amappl2 88 697 0 635 2 0 2 2 0 8 0 amappl1 80 9651 0 9091 15 1 14 14 0 8 0 amappl 88 5596 0 5456 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 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 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 774 0 746 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 774 0 746 1 0 1 1 0 8 0 vmmpekpl 168 8283 0 8239 3 0 3 3 0 8 0 vmmpepl 168 53887 0 52187 95 8 87 93 0 357 2 vmsppl 456 773 0 746 6 1 5 5 0 8 1 rwobjpl 64 19766 0 16430 58 3 55 55 0 8 0 pdppl 4096 1555 0 1492 107 36 71 87 0 8 8 pvpl 32 13724 0 0 112 1 111 112 0 265 0 pmappl 248 773 0 746 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 297 0 45 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(ffff80002a461cc0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83670ef0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83670ef0) at __mp_lock+0x199 sys/kern/kern_lock.c:144 intr_handler(ffff80002a461e20,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f fd_getfile(fffffd806e1f77f0,22) at fd_getfile+0x44 sys/kern/kern_descrip.c:232 kqueue_register(fffffd806ee040d8,ffff80002a461fe0,0,ffff8000ffffd6d0) at kqueue_register+0x291 pselregister(ffff8000ffffd6d0,ffff80002a462290,0,32,ffff80002a462314,ffff80002a461dc8) at pselregister+0x135 sys/kern/sys_generic.c:760 dopselect(ffff8000ffffd6d0,32,71940d10cf10,0,0,ffff80002a4623c8,65786d60403d540f,ffff8000ffffd6d0) at dopselect+0x503 sys/kern/sys_generic.c:653 sys_pselect(ffff8000ffffd6d0,ffff80002a462510,ffff80002a462460) at sys_pselect+0x263 sys/kern/sys_generic.c:589 syscall(ffff80002a462510) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a462510) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71940d10cec0, count: -16 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(fffffd8066a2bca8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd8066a2bc90,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd8066a2bc90,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8062c73968,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8062c73968,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vget(fffffd8062c73968,2001) at vget+0x2bd sys/kern/vfs_subr.c:694 ktrwriteraw(ffff80003c5b27c8,fffffd8062c73968,fffffd807f7d37b8,ffff80003c5e3310,ffff80003c5e32f0) at ktrwriteraw+0x172 sys/kern/kern_ktrace.c:688 ktrnamei(ffff80003c5b27c8,ffff80002a3e5400) at ktrnamei+0x148 sys/kern/kern_ktrace.c:222 namei(ffff80003c5e3448) at namei+0x2a2 sys/kern/vfs_lookup.c:170 unp_connect(ffff80000132b058,fffffd806b749c00,ffff80003c5b27c8) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000132b058,fffffd80665a0f00,fffffd806b749c00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000132b058,fffffd806b749c00,ffff80003c5e36c8,0,0,0) at sosend+0x804 sendit(ffff80003c5b27c8,3,ffff80003c5e3840,0,ffff80003c5e3900) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff80003c5b27c8,ffff80003c5e39b0,ffff80003c5e3900) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c5e39b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5e39b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb6801d0f50, count: -17