witness: lock order reversal: 1st 0xffff800010fd5670 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd806bd9a658 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff834385bd -> 0xffffffff833a5512 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:536 #2 soreceive+0x28e sys/kern/uipc_socket.c:882 #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{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(fffffd806bd9a658,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806bd9a640,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806bd9a640,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8063937960,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8063937960,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8063937960,fffffd8064d14d90,0,0,200,0,795da657bb505e57) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8063937960,fffffd8064d14d90,ffff8000ffff6cf0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806435c500,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff800010fd5590,ffff80002f09a478,ffff80002f09a428,0,ffff80002f09a468,ffff80002f09a5ec,8bda06322c28637) at soreceive+0xc73 sys/kern/uipc_socket.c:1021 recvit(ffff8000ffff6cf0,5,ffff80002f09a5c0,0,ffff80002f09a670) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff8000ffff6cf0,ffff80002f09a720,ffff80002f09a670) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80002f09a720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f09a720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112d2f1e150, count: -14 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80002f099f00 rbx 0xfffffd800470df88 rdx 0xffff800001444200 rcx 0xffff8000ffff6cf0 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80002f099de0 r9 0x8080808080808080 r10 0xc3ec48a629c1c2fd r11 0x13bc943be24a6c69 r12 0 r13 0xfffffd8003f24f00 r14 0x3 r15 0xffffffff rip 0xffffffff810240e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f099ef0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=510399 pid=74006 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=0xffff8000ffff6540,0xffff80002a391218 process=0xffff80003c4d84b8 user=0xffff80002f095000, vmspace=0xfffffd806dfef010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 74006 311176 16625 0 2 0x1000000 syz-executor *74006 510399 16625 0 7 0x5000000 syz-executor 74006 318490 16625 0 2 0x5000000 syz-executor 82241 137295 1 0 3 0x82 nanoslp getty 517 66927 28996 0 7 0 syz-executor 517 474568 28996 0 3 0x4000080 fsleep syz-executor 517 143310 28996 0 2 0x4000000 syz-executor 517 82132 28996 0 3 0x4000080 fsleep syz-executor 64025 403044 23151 0 3 0x80 nanoslp syz-executor 64025 344949 23151 0 3 0x4000080 sbwait syz-executor 64025 82069 23151 0 3 0x4000080 fsleep syz-executor 25637 360572 9358 0 3 0x80 nanoslp syz-executor 25637 30146 9358 0 3 0x4000080 msgwait syz-executor 25637 482453 9358 0 3 0x4000080 fsleep syz-executor 32918 99846 70961 0 3 0x80 nanoslp syz-executor 32918 324667 70961 0 3 0x4000080 kqread syz-executor 32918 115736 70961 0 3 0x4000080 fsleep syz-executor 32918 381542 70961 0 3 0x4000080 fsleep syz-executor 36224 215784 0 0 3 0x14200 bored sosplice 28996 337333 6619 0 3 0x82 nanoslp syz-executor 50840 203251 6619 0 3 0x2 biowait syz-executor 23151 301079 6619 0 3 0x82 nanoslp syz-executor 49758 128275 6619 0 3 0x2 biowait syz-executor 16625 111330 6619 0 3 0x82 nanoslp syz-executor 58833 412730 6619 0 3 0x2 getblk syz-executor 70961 56477 6619 0 3 0x82 nanoslp syz-executor 9358 278052 6619 0 3 0x82 nanoslp syz-executor 6619 498609 97372 0 3 0x82 kqread syz-executor 97372 6035 68205 0 3 0x10008a sigsusp ksh 68205 157028 84981 0 3 0x98 kqread sshd-session 84981 242767 42902 0 3 0x92 kqread sshd-session 42902 281036 1 0 3 0x88 kqread sshd 29990 145177 74937 74 3 0x1100092 bpf pflogd 74937 270929 1 0 3 0x80 sbwait pflogd 6669 224112 90818 73 3 0x1100090 kqread syslogd 90818 402055 1 0 3 0x100082 sbwait syslogd 71688 458355 1 0 3 0x100080 kqread resolvd 90125 81395 10450 77 3 0x100092 kqread dhcpleased 33696 158831 10450 77 3 0x100092 kqread dhcpleased 10450 455828 1 0 3 0x80 kqread dhcpleased 54630 36689 0 0 3 0x14200 bored smr 4998 117996 0 0 2 0x14200 zerothread 9067 296007 0 0 3 0x14200 aiodoned aiodoned 43988 519713 0 0 3 0x14200 syncer update 18898 36780 0 0 3 0x14200 cleaner cleaner 52443 130087 0 0 3 0x14200 reaper reaper 13740 154800 0 0 3 0x14200 pgdaemon pagedaemon 68035 275587 0 0 3 0x14200 bored viomb 99701 37494 0 0 3 0x40014200 acpi0 acpi0 39885 98966 0 0 3 0x40014200 idle1 39414 214454 0 0 3 0x14200 bored softnet3 59885 370892 0 0 3 0x14200 bored softnet2 30507 78327 0 0 3 0x14200 bored softnet1 19372 141630 0 0 3 0x14200 bored softnet0 58564 30595 0 0 3 0x14200 bored systqmp 61209 479607 0 0 3 0x14200 bored systq 60897 391006 0 0 3 0x14200 tmoslp softclockmp 37540 300678 0 0 3 0x40014200 tmoslp softclock 56686 117361 0 0 3 0x40014200 idle0 1 70234 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 74006 (syz-executor) thread 0xffff8000ffff6cf0 (510399) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83906af8) #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:1021 #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 (0xffff800010fd5670) #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:536 #3 soreceive+0x28e sys/kern/uipc_socket.c:882 #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 517 (syz-executor) thread 0xffff8000ffffdc40 (66927) exclusive rwlock uobjlk r = 0 (0xfffffd806be7cad8) #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 uvm_fault+0x1e9 sys/uvm/uvm_fault.c:690 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b5b8120) #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 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 Process 50840 (syz-executor) thread 0xffff80002a2f9488 (203251) exclusive rrwlock inode r = 0 (0xfffffd806bd9af18) #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:3117 #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 (0xfffffd806c441650) #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:3102 #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 49758 (syz-executor) thread 0xffff80002a391728 (128275) exclusive rrwlock inode r = 0 (0xfffffd806bd9ae00) #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:1866 #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 (0xfffffd806c441998) #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:1866 #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 58833 (syz-executor) thread 0xffff80002a390a58 (412730) exclusive rrwlock inode r = 0 (0xfffffd806bd9abd0) #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:1866 #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 (0xfffffd806bd9a1f8) #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:1866 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11025K 11345K 166960K 11585 0 pcb 18 12K 12K 166960K 56 0 rtable 199 7K 7K 166960K 388 0 pf 34 17K 19K 166960K 53 0 ifaddr 40 6K 7K 166960K 52 0 ifgroup 53 2K 2K 166960K 64 0 sysctl 3 1K 1K 166960K 3 0 counters 68 36K 36K 166960K 76 0 ioctlops 0 0K 4K 166960K 1503 0 iov 1 4K 18K 166960K 17 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 88K 166960K 1562 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 14 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 331 0 sigio 1 0K 0K 166960K 3 0 proc 72 91K 128K 166960K 555 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 38 0 in_multi 89 6K 7K 166960K 110 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 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 387 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 220 72K 78K 166960K 4701 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 40 80K 104K 166960K 1430 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 14 0 NDP 12 0K 2K 166960K 32 0 temp 43 8636K 8701K 166960K 13019 0 kqueue 17 28K 32K 166960K 60 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 40 1 0 1 1 0 8 0 rtentry 112 121 0 32 4 0 4 4 0 8 0 unpcb 144 170 0 146 2 0 2 2 0 8 1 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 51 0 44 1 0 1 1 0 8 0 arp 120 19 0 3 1 0 1 1 0 8 0 inpcb 376 307 0 296 8 0 8 8 0 8 6 nd6 136 25 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 5 0 2 1 0 1 1 0 8 0 pppxif 1472 1 0 1 1 0 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 5 0 2 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 30 0 0 1 0 1 1 0 8 0 pfstkey 128 30 0 0 1 0 1 1 0 8 0 pfstate 376 30 0 0 3 0 3 3 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 552 0 143 30 0 30 30 0 8 3 art_table 32 554 0 143 4 0 4 4 0 8 0 art_node 16 120 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 1944 0 434 95 0 95 95 0 8 0 ffsino 280 1944 0 434 109 0 109 109 0 8 0 nchpl 144 2383 0 695 63 0 63 63 0 8 0 rtmask 32 1 0 0 1 0 1 1 0 8 0 uvmvnodes 80 2170 0 0 45 0 45 45 0 8 0 vnodes 216 2170 0 0 121 0 121 121 0 8 0 namei 1024 8048 0 8047 2 0 2 2 0 8 1 percpumem 16 52 0 4 1 0 1 1 0 8 0 kstatmem 264 30 0 6 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7478 0 7476 3 2 1 2 1 8 0 plimitpl 152 47 0 29 1 0 1 1 0 8 0 sigapl 424 636 0 588 7 0 7 7 0 8 1 futexpl 64 3067 0 3061 1 0 1 1 0 8 0 knotepl 120 741 0 0 23 0 23 23 0 8 0 kqueuepl 216 82 0 66 2 0 2 2 0 8 1 pipepl 328 134 0 107 3 0 3 3 0 8 0 fdescpl 504 616 0 587 5 0 5 5 0 8 0 filepl 152 3041 0 2812 14 0 14 14 0 8 4 lockfpl 104 60 0 58 1 0 1 1 0 8 0 lockfspl 48 27 0 25 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 247 0 234 1 0 1 1 0 8 0 zombiepl 144 588 0 588 1 0 1 1 0 8 1 processpl 1176 636 0 588 5 0 5 5 0 8 0 procpl 656 997 0 937 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 522 0 483 10 0 10 10 0 8 5 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 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 24 0 0 3 0 3 3 0 8 0 mtagpl 96 44 0 0 2 0 2 2 0 8 0 mbufpl 256 201 0 0 13 0 13 13 0 8 0 bufpl 280 3691 0 130 255 0 255 255 0 8 0 anonpl 24 116036 0 112737 45 0 45 45 0 184 22 amapchunkpl 152 14586 0 14109 28 0 28 28 0 158 7 amappl16 200 2245 0 2214 14 4 10 14 0 8 8 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1261 0 1232 4 1 3 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 126 0 114 1 0 1 1 0 8 0 amappl6 120 182 0 179 1 0 1 1 0 8 0 amappl5 112 129 0 120 1 0 1 1 0 8 0 amappl4 104 322 0 302 1 0 1 1 0 8 0 amappl3 96 2587 0 2478 4 0 4 4 0 8 0 amappl2 88 679 0 614 2 0 2 2 0 8 0 amappl1 80 8900 0 8335 15 1 14 14 0 8 0 amappl 88 4314 0 4150 5 0 5 5 0 92 0 dma32768 32768 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 128 254 0 254 2 1 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 616 0 587 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 616 0 587 1 0 1 1 0 8 0 vmmpekpl 168 6996 0 6954 3 0 3 3 0 8 0 vmmpepl 168 44666 0 42888 94 0 94 94 0 357 7 vmsppl 456 615 0 587 5 0 5 5 0 8 1 rwobjpl 64 17602 0 14494 51 0 51 51 0 8 0 pdppl 4096 1239 0 1174 99 26 73 85 0 8 8 pvpl 32 15592 0 0 126 0 126 126 0 265 0 pmappl 248 615 0 587 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 277 0 28 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(fffffd806bd9a658,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806bd9a640,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806bd9a640,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8063937960,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8063937960,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8063937960,fffffd8064d14d90,0,0,200,0,795da657bb505e57) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8063937960,fffffd8064d14d90,ffff8000ffff6cf0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806435c500,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff800010fd5590,ffff80002f09a478,ffff80002f09a428,0,ffff80002f09a468,ffff80002f09a5ec,8bda06322c28637) at soreceive+0xc73 sys/kern/uipc_socket.c:1021 recvit(ffff8000ffff6cf0,5,ffff80002f09a5c0,0,ffff80002f09a670) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff8000ffff6cf0,ffff80002f09a720,ffff80002f09a670) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80002f09a720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f09a720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112d2f1e150, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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(ffffffff839068f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839068f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvm_fault(fffffd806b5b8020,d104beef000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691 upageflttrap(ffff80002a36ebf0,d104beef000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a36ebf0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7e1e44cbed60, count: -8