./file0./file0 κΟ/dev/vmm./file0./file0 κΟwitness: lock order reversal: 1st 0xffff800010fde1b8 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806bee7f88 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff830be9a1 -> 0xffffffff8306b4aa is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_enter+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 soreceive+0x295 sys/kern/uipc_socket.c:945 #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+0xf6 sys/kern/vfs_vnops.c:525 #10 sys_ioctl+0x67c #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #11 syscall+0xbb6 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_enter+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 sosplice+0x3f4 sys/kern/uipc_socket.c:1454 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1228 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 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(fffffd806bee7f88,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806bee7f78,1) at rw_enter+0x122 rrw_enter(fffffd806bee7f78,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd80772407f0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd80772407f0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002a123e68) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002a123e68) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fde010,fffffd80693c8400,ffff8000fffeb708) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff800010fde010,fffffd806ceb0a00,fffffd80693c8400,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff800010fde010,fffffd80693c8400,ffff80002a1240f8,0,0,0) at sosend+0xa40 sendit(ffff8000fffeb708,3,ffff80002a124270,0,ffff80002a124330) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000fffeb708,ffff80002a1243e0,ffff80002a124330) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002a1243e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a1243e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5836806d380, count: -15 ddb{1}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff80002a123ac0 rbx 0xfffffd80042c24f8 rdx 0xffff8000012a2180 rcx 0xffff8000fffeb708 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff80002a1239a0 r9 0x8080808080808080 r10 0x8b68bb899f0cee28 r11 0x255cb01e02c95856 r12 0 r13 0xfffffd8003adae00 r14 0x3 r15 0xffffffff rip 0xffffffff81610e15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a123ab0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=330894 pid=32390 tcnt=2 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=0xffff8000fffeaf70,0xffffffff835f1e20 process=0xffff8000fffe56b0 user=0xffff80002a11f000, vmspace=0xfffffd806bef18e0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 32390 483230 62922 0 2 0 syz-executor *32390 330894 62922 0 7 0x4000000 syz-executor 47997 393559 92268 0 2 0 syz-executor 59827 443430 76676 60929 3 0x90 nanoslp syz-executor 59827 149429 76676 60929 2 0x4000010 syz-executor 59827 8776 76676 60929 3 0x4000090 fsleep syz-executor 88020 315895 74657 0 2 0 syz-executor 88020 195179 74657 0 7 0x4000000 syz-executor 41451 384584 22009 0 2 0x480 syz-executor 41451 301219 22009 0 3 0x4000080 ttyin syz-executor 41451 209338 22009 0 3 0x4000080 fsleep syz-executor 41451 357139 22009 0 3 0x4000080 fsleep syz-executor 89981 118557 76413 0 3 0x80 nanoslp syz-executor 89981 157909 76413 0 3 0x4000080 sbwait syz-executor 89981 169597 76413 0 3 0x4000080 fsleep syz-executor 89981 408990 76413 0 3 0x4000080 fsleep syz-executor 68372 280691 39842 0 2 0 syz-executor 68372 403551 39842 0 3 0x4000080 ttyin syz-executor 68372 417855 39842 0 3 0x4000080 fsleep syz-executor 74657 46889 47596 0 2 0x482 syz-executor 2713 275893 0 0 3 0x14280 nfsidl nfsio 43190 396290 0 0 3 0x14280 nfsidl nfsio 47990 403202 0 0 3 0x14280 nfsidl nfsio 67543 11142 0 0 3 0x14280 nfsidl nfsio 32362 391992 0 0 3 0x14280 nfsidl nfsio 15931 410017 0 0 3 0x14280 nfsidl nfsio 22332 114975 0 0 3 0x14280 nfsidl nfsio 79136 58991 0 0 3 0x14280 nfsidl nfsio 19221 48913 0 0 3 0x14280 nfsidl nfsio 1095 76403 0 0 3 0x14280 nfsidl nfsio 97755 54964 0 0 3 0x14280 nfsidl nfsio 61692 304347 0 0 3 0x14280 nfsidl nfsio 83777 121617 0 0 3 0x14280 nfsidl nfsio 3328 302257 0 0 3 0x14280 nfsidl nfsio 97092 288981 0 0 3 0x14280 nfsidl nfsio 6097 35337 0 0 3 0x14280 nfsidl nfsio 85656 205260 0 0 3 0x14280 nfsidl nfsio 36179 63328 0 0 3 0x14280 nfsidl nfsio 87482 277740 0 0 3 0x14280 nfsidl nfsio 42867 384017 0 0 3 0x14280 nfsidl nfsio 33213 61140 47596 0 3 0x2 biowait syz-executor 52441 390106 1 0 3 0x100083 ttyin getty 39842 327873 47596 0 3 0x82 nanoslp syz-executor 62922 419673 47596 0 3 0x82 nanoslp syz-executor 26037 311590 0 0 3 0x14200 bored sosplice 22009 431612 47596 0 3 0x82 nanoslp syz-executor 92268 312100 47596 0 3 0x82 nanoslp syz-executor 76676 75490 47596 0 2 0x482 syz-executor 76413 316171 47596 0 3 0x82 nanoslp syz-executor 47596 266918 84394 0 2 0x2 syz-executor 84394 437263 69038 0 3 0x10008a sigsusp ksh 69038 445332 7308 0 3 0x98 kqread sshd-session 7308 458242 5881 0 3 0x92 kqread sshd-session 5881 427680 1 0 3 0x88 kqread sshd 52219 241142 64525 74 3 0x1100092 bpf pflogd 64525 116669 1 0 3 0x80 sbwait pflogd 24037 496449 91137 73 3 0x1100090 kqread syslogd 91137 117984 1 0 3 0x100082 sbwait syslogd 80625 66924 1 0 3 0x100080 kqread resolvd 76006 68424 25620 77 3 0x100092 kqread dhcpleased 89856 45947 25620 77 3 0x100092 kqread dhcpleased 25620 94658 1 0 3 0x80 kqread dhcpleased 8365 349789 0 0 2 0x40014200 smr 7643 230383 0 0 3 0x14200 pgzero zerothread 34963 50403 0 0 3 0x14200 aiodoned aiodoned 73693 286500 0 0 3 0x14200 syncer update 59411 439096 0 0 3 0x14200 cleaner cleaner 48862 154087 0 0 3 0x14200 reaper reaper 69387 178577 0 0 3 0x14200 pgdaemon pagedaemon 82741 5815 0 0 3 0x14200 bored viomb 18837 328752 0 0 3 0x40014200 acpi0 acpi0 79871 247079 0 0 3 0x40014200 idle1 46736 46829 0 0 3 0x14200 bored softnet3 84924 164608 0 0 3 0x14200 bored softnet2 4492 41421 0 0 3 0x14200 bored softnet1 60398 379840 0 0 3 0x14200 bored softnet0 19126 302109 0 0 3 0x14200 bored systqmp 88551 430221 0 0 3 0x14200 bored systq 42171 371553 0 0 3 0x14200 tmoslp softclockmp 22821 62090 0 0 2 0x40014200 softclock 10526 60343 0 0 3 0x40014200 idle0 1 8760 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 32390 (syz-executor) thread 0xffff8000fffeb708 (330894) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8359d538) #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+0xa40 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fde1b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 sosend+0x2ff sys/kern/uipc_socket.c:681 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 88020 (syz-executor) thread 0xffff8000ffff3980 (195179) shared rwlock vmmaplk r = 0 (0xfffffd806cad2b90) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1819 #2 uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #4 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #5 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x57 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 33213 (syz-executor) thread 0xffff80002a03f970 (61140) exclusive rrwlock inode r = 0 (0xfffffd806bee7b48) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:678 #6 ufs_ihashget+0x192 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:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806dd36c48) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:678 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 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:1852 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10249 11525K 11657K 166960K 13642 0 pcb 17 16K 17K 166960K 430 0 rtable 196 7K 8K 166960K 694 0 pf 37 18K 26K 166960K 149 0 ifaddr 41 7K 8K 166960K 105 0 ifgroup 55 2K 2K 166960K 139 0 sysctl 2 0K 0K 166960K 6 0 counters 64 36K 37K 166960K 116 0 ioctlops 0 0K 4K 166960K 1629 0 iov 1 12K 16K 166960K 178 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1483 93K 94K 166960K 2793 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 27 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 80 0 dirhash 12 2K 2K 166960K 66 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 97K 166960K 1822 0 sigio 0 0K 0K 166960K 194 0 proc 72 91K 140K 166960K 821 0 subproc 104 6K 6K 166960K 156 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 454 0 in_multi 83 6K 7K 166960K 254 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 667 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 73K 91K 166960K 18716 0 UVM aobj 109 6K 6K 166960K 116 0 pinsyscall 42 84K 109K 166960K 3055 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 70 0 NDP 12 0K 2K 166960K 73 0 temp 76 6828K 6896K 166960K 75245 0 kqueue 13 20K 30K 166960K 325 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 120 176 0 173 2 1 1 2 0 8 0 rtentry 112 227 0 141 4 0 4 4 0 8 0 unpcb 144 1478 0 1456 12 6 6 6 0 8 5 syncache 336 14 0 14 2 2 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 766 0 757 14 6 8 8 0 8 7 arp 120 34 0 19 1 0 1 1 0 8 0 inpcb 336 2726 0 2712 18 7 11 13 0 8 8 nd6 136 57 0 33 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1168 14 0 14 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 11 0 4 1 0 1 1 0 482 0 pffrnode 88 11 0 4 1 0 1 1 0 8 0 pffrent 40 59 0 52 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 7 0 1 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 158 0 36 1 0 1 1 0 8 0 pfstkey 128 159 0 38 4 0 4 4 0 8 0 pfstate 376 157 0 37 12 0 12 12 0 8 0 pfrule 1344 30 0 20 2 0 2 2 0 8 0 art_heap8 4096 5 0 2 4 0 4 4 0 8 1 art_heap4 256 1040 0 603 36 4 32 32 0 8 1 art_table 32 1045 0 605 5 0 5 5 0 8 0 art_node 16 220 0 145 1 0 1 1 0 8 0 sysvmsgpl 40 61 0 54 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 78 0 68 1 0 1 1 0 8 0 shmpl 112 113 0 7 4 0 4 4 0 8 0 dirhash 1024 55 0 38 3 0 3 3 0 8 0 dino2pl 256 4569 0 3071 95 0 95 95 0 8 0 ffsino 272 4569 0 3071 102 0 102 102 0 8 0 nchpl 144 7139 0 6605 64 32 32 64 0 8 8 uvmvnodes 80 5594 0 0 115 0 115 115 0 8 0 vnodes 216 5594 0 0 311 0 311 311 0 8 0 namei 1024 25946 0 25945 2 1 1 1 0 8 0 percpumem 16 72 0 26 1 0 1 1 0 8 0 kstatmem 264 76 0 52 3 1 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 7 0 7 1 0 1 1 0 8 1 scxspl 216 22075 0 22074 10 8 2 8 1 8 1 plimitpl 152 524 0 507 1 0 1 1 0 8 0 sigapl 424 2149 0 2079 10 1 9 9 0 8 0 futexpl 64 25872 0 25866 1 0 1 1 0 8 0 knotepl 120 573 0 0 17 0 17 17 0 8 0 kqueuepl 216 647 0 636 8 7 1 5 0 8 0 pipepl 320 477 0 450 11 3 8 8 0 8 5 fdescpl 496 2107 0 2076 6 1 5 6 0 8 0 filepl 152 15775 0 15516 23 3 20 20 0 8 8 lockfpl 104 595 0 591 1 0 1 1 0 8 0 lockfspl 48 231 0 227 1 0 1 1 0 8 0 sessionpl 144 38 0 29 1 0 1 1 0 8 0 pgrppl 48 109 0 91 1 0 1 1 0 8 0 ucredpl 104 2833 0 2819 1 0 1 1 0 8 0 zombiepl 144 2079 0 2079 1 0 1 1 0 8 1 processpl 1160 2149 0 2079 7 1 6 6 0 8 0 procpl 648 4939 0 4857 9 1 8 8 0 8 0 srpgc 96 13 0 13 2 1 1 1 0 8 1 sosppl 168 22 0 21 1 0 1 1 0 8 0 sockpl 664 4415 0 4377 34 22 12 21 0 8 8 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 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 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 169 0 0 22 0 22 22 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 65 0 0 8 0 8 8 0 8 0 mtagpl 96 125 0 0 4 0 4 4 0 8 0 mbufpl 256 1179 0 0 74 0 74 74 0 8 0 bufpl 280 6332 0 158 442 0 442 442 0 8 0 anonpl 24 340209 0 331470 97 12 85 95 0 185 22 amapchunkpl 152 61622 0 60987 40 8 32 39 0 158 4 amappl16 200 8545 0 8310 61 43 18 30 0 8 5 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 146 0 134 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 2853 0 2823 4 2 2 3 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 134 0 134 1 1 0 1 0 8 0 amappl8 136 37 0 34 1 0 1 1 0 8 0 amappl7 128 129 0 116 1 0 1 1 0 8 0 amappl6 120 199 0 198 1 0 1 1 0 8 0 amappl5 112 163 0 150 1 0 1 1 0 8 0 amappl4 104 362 0 343 1 0 1 1 0 8 0 amappl3 96 11376 0 11275 3 0 3 3 0 8 0 amappl2 88 2487 0 2402 4 1 3 4 0 8 0 amappl1 80 15496 0 14929 17 3 14 16 0 8 0 amappl 88 18150 0 17962 5 0 5 5 0 92 0 dma32768 32768 3 0 3 2 1 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 3 3 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 115 0 7 2 0 2 2 0 8 0 uaddrrnd 24 2107 0 2076 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2107 0 2076 1 0 1 1 0 8 0 vmmpekpl 168 19166 0 19104 3 0 3 3 0 8 0 vmmpepl 168 138612 0 136522 118 17 101 118 0 357 7 vmsppl 448 2106 0 2076 6 2 4 5 0 8 0 rwobjpl 56 44907 0 38040 98 1 97 97 0 8 0 pdppl 4096 4221 0 4152 117 44 73 87 0 8 4 pvpl 32 23996 0 0 194 0 194 194 0 265 0 pmappl 248 2106 0 2076 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 512 0 69 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8349fff0) 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 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x1a __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371d5920,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371d5a80,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371d5be0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:149 witness_unlock(fffffd806cad2b90,0) at witness_unlock+0x13d sys/kern/subr_witness.c:1269 rw_exit_read(fffffd806cad2b80) at rw_exit_read+0x90 sys/kern/kern_rwlock.c:140 uvmfault_lookup(ffff8000371d5fb8,0) at uvmfault_lookup+0x22a sys/uvm/uvm_fault.c:1821 uvm_fault_check(ffff8000371d5fb8,ffff8000371d5ff0,ffff8000371d6020,0) at uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806cad2a98,562000,0,2) at uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff8000371d6160,562ac0) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000371d6160) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff8000371d65b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d65b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x49b2cc5bfc0, count: -25 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(fffffd806bee7f88,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806bee7f78,1) at rw_enter+0x122 rrw_enter(fffffd806bee7f78,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd80772407f0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd80772407f0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff80002a123e68) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80002a123e68) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fde010,fffffd80693c8400,ffff8000fffeb708) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff800010fde010,fffffd806ceb0a00,fffffd80693c8400,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff800010fde010,fffffd80693c8400,ffff80002a1240f8,0,0,0) at sosend+0xa40 sendit(ffff8000fffeb708,3,ffff80002a124270,0,ffff80002a124330) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff8000fffeb708,ffff80002a1243e0,ffff80002a124330) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff80002a1243e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a1243e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5836806d380, count: -15