witness: lock order reversal: 1st 0xfffffd806ce7a490 vmmaplk (&map->lock) 2nd 0xfffffd806f8ab3d0 inode (&ip->i_lock) lock order [1] vmmaplk (&map->lock) -> [2] inode (&ip->i_lock) #0 rw_enter+0x122 #1 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #2 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #3 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #4 vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 #5 vndstrategy+0x4ff sys/dev/vnd.c:342 #6 physio+0x2f6 sys/kern/kern_physio.c:162 #7 spec_read+0x155 sys/kern/spec_vnops.c:215 #8 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #9 vn_read+0x17b sys/kern/vfs_vnops.c:369 #10 dofilereadv+0x230 sys/kern/sys_generic.c:252 #11 sys_read+0xa2 sys/kern/sys_generic.c:172 #12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 lock order [2] inode (&ip->i_lock) -> [1] vmmaplk (&map->lock) #0 rw_enter_read+0xab sys/kern/kern_rwlock.c:112 #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 ffs_read+0x422 sys/ufs/ffs/ffs_vnops.c:254 #9 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #10 vn_rdwr+0x15b #11 vmcmd_map_readvn+0x142 sys/kern/exec_subr.c:249 #12 exec_process_vmcmds+0xfb sys/kern/exec_subr.c:139 #13 sys_execve+0xbe4 sys/kern/kern_exec.c:468 #14 start_init+0x3c6 sys/kern/init_main.c:714 #15 proc_trampoline+0x10 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(fffffd806f8ab3d0,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806f8ab3c0,1) at rw_enter+0x122 rrw_enter(fffffd806f8ab3c0,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805e9c6490,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805e9c6490,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd805e9c6490,ffff800011a26140,df,0,1,188ed1f9c7e5a17b,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd806b2c66a8) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff81f40140,2902,8000,ffffffff8164a270,ffff8000371e8bf8) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff8000371e8a60) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806e000eb8,ffff8000371e8bf8,0,fffffd807f7d3548) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806cdc18f0,ffff8000371e8bf8,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff27b8,3,ffff8000371e8bf8,0,ffff8000371e8cb0) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_read(ffff8000ffff27b8,ffff8000371e8d60,ffff8000371e8cb0) at sys_read+0xa2 sys/kern/sys_generic.c:172 syscall(ffff8000371e8d60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371e8d60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b2c3b46a60, count: -16 ddb{1}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff8000371e8520 rbx 0xfffffd80042c6130 rdx 0xffff800001290900 rcx 0xffff8000ffff27b8 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff8000371e8400 r9 0x8080808080808080 r10 0x9ea8df51a7d4d548 r11 0xf696231451d53d0c r12 0 r13 0xfffffd8003adde00 r14 0x3 r15 0xffffffff rip 0xffffffff82a55325 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371e8510 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=275726 pid=44429 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000372622c0,0xffffffff835ce2b8 process=0xffff800037215b38 user=0xffff8000371e3000, vmspace=0xfffffd806ce7a398 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44429 27621 65670 0 2 0 syz-executor 44429 420959 65670 0 3 0x4000080 ttyin syz-executor *44429 275726 65670 0 7 0x4000000 syz-executor 58781 276543 75031 0 2 0 syz-executor 58781 480787 75031 0 3 0x4000080 fsleep syz-executor 13466 254469 27866 0 3 0x80 nanoslp syz-executor 13466 7064 27866 0 3 0x4000080 netcon syz-executor 13466 199301 27866 0 3 0x4000080 fsleep syz-executor 48247 378644 1 0 3 0x80 nanoslp init 27866 451417 8952 0 3 0x82 nanoslp syz-executor 39246 384202 0 0 3 0x14280 nfsidl nfsio 33893 313224 0 0 3 0x14280 nfsidl nfsio 51833 446064 0 0 3 0x14280 nfsidl nfsio 55165 461455 0 0 3 0x14280 nfsidl nfsio 33133 419367 0 0 3 0x14280 nfsidl nfsio 70070 180870 0 0 3 0x14280 nfsidl nfsio 59785 295364 0 0 3 0x14280 nfsidl nfsio 61371 197433 0 0 3 0x14280 nfsidl nfsio 66431 284340 0 0 3 0x14280 nfsidl nfsio 17029 24020 0 0 3 0x14280 nfsidl nfsio 46096 299834 0 0 3 0x14280 nfsidl nfsio 25210 114261 0 0 3 0x14280 nfsidl nfsio 74036 388572 0 0 3 0x14280 nfsidl nfsio 27125 268701 0 0 3 0x14280 nfsidl nfsio 68396 417941 0 0 3 0x14280 nfsidl nfsio 51374 294139 0 0 3 0x14280 nfsidl nfsio 43267 376284 0 0 3 0x14280 nfsidl nfsio 12555 26726 0 0 3 0x14280 nfsidl nfsio 17069 154473 0 0 3 0x14280 nfsidl nfsio 9663 31559 0 0 3 0x14280 nfsidl nfsio 29334 77990 0 0 3 0x14200 bored sosplice 27934 183207 8952 0 3 0x82 piperd syz-executor 80746 220301 8952 0 3 0x82 nanoslp syz-executor 75031 175756 8952 0 3 0x82 nanoslp syz-executor 92085 386341 8952 0 3 0x2 biowait syz-executor 6696 156601 8952 0 3 0x2 biowait syz-executor 65670 226879 8952 0 3 0x82 nanoslp syz-executor 14980 424815 8952 0 7 0x2 syz-executor 8952 179249 87120 0 3 0x82 nanoslp syz-executor 87120 371880 32954 0 3 0x10008a sigsusp ksh 32954 314263 32516 0 3 0x98 kqread sshd-session 32516 209504 80896 0 3 0x92 kqread sshd-session 80896 43974 1 0 3 0x88 kqread sshd 47101 55997 75504 74 3 0x1100092 bpf pflogd 75504 294956 1 0 3 0x80 sbwait pflogd 10604 493622 75221 73 3 0x1100090 kqread syslogd 75221 73917 1 0 3 0x100082 sbwait syslogd 25216 483120 1 0 3 0x100080 kqread resolvd 84715 175328 40151 77 3 0x100092 kqread dhcpleased 65638 229801 40151 77 3 0x100092 kqread dhcpleased 40151 168587 1 0 3 0x80 kqread dhcpleased 80716 343886 0 0 3 0x14200 bored smr 91136 298370 0 0 2 0x14200 zerothread 53724 85194 0 0 3 0x14200 aiodoned aiodoned 33474 397481 0 0 3 0x14200 syncer update 96327 335505 0 0 3 0x14200 cleaner cleaner 66802 352804 0 0 3 0x14200 reaper reaper 78758 231959 0 0 3 0x14200 pgdaemon pagedaemon 53192 34281 0 0 3 0x14200 bored viomb 36258 427300 0 0 3 0x40014200 acpi0 acpi0 40954 71585 0 0 3 0x40014200 idle1 83799 123914 0 0 3 0x14200 bored softnet3 38263 328439 0 0 3 0x14200 bored softnet2 82040 190079 0 0 3 0x14200 bored softnet1 2416 268431 0 0 3 0x14200 bored softnet0 61276 87264 0 0 3 0x14200 bored systqmp 76220 513569 0 0 3 0x14200 bored systq 24067 131992 0 0 3 0x14200 tmoslp softclockmp 48270 236296 0 0 3 0x40014200 tmoslp softclock 16571 434957 0 0 3 0x40014200 idle0 1 373556 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 44429 (syz-executor) thread 0xffff8000ffff27b8 (275726) shared rwlock vmmaplk r = 0 (0xfffffd806ce7a490) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:172 #2 physio+0x277 sys/kern/kern_physio.c:139 #3 spec_read+0x155 sys/kern/spec_vnops.c:215 #4 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #5 vn_read+0x17b sys/kern/vfs_vnops.c:369 #6 dofilereadv+0x230 sys/kern/sys_generic.c:252 #7 sys_read+0xa2 sys/kern/sys_generic.c:172 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83553710) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vn_read+0x56 sys/kern/vfs_vnops.c:351 #2 dofilereadv+0x230 sys/kern/sys_generic.c:252 #3 sys_read+0xa2 sys/kern/sys_generic.c:172 #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 Process 92085 (syz-executor) thread 0xffff80002a041458 (386341) exclusive rrwlock inode r = 0 (0xfffffd806dda55e8) #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 (0xfffffd806cdadf88) #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 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:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 6696 (syz-executor) thread 0xffff80002a0411d0 (156601) exclusive rrwlock inode r = 0 (0xfffffd806dd91808) #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 (0xfffffd806cdadc58) #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 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:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10252 11385K 11711K 166960K 13815 0 pcb 18 16K 18K 166960K 472 0 rtable 150 6K 7K 166960K 622 0 pf 43 19K 274K 166960K 124 0 ifaddr 35 5K 8K 166960K 90 0 ifgroup 67 2K 3K 166960K 146 0 sysctl 3 0K 0K 166960K 5 0 counters 70 37K 37K 166960K 118 0 ioctlops 0 0K 4K 166960K 1710 0 iov 1 12K 14K 166960K 91 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1488 94K 94K 166960K 2996 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 30 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 65 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 14 49K 93K 166960K 1690 0 sigio 0 0K 0K 166960K 24 0 proc 63 79K 140K 166960K 745 0 subproc 104 6K 6K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 273 0 in_multi 60 4K 7K 166960K 194 0 ether_multi 1 0K 0K 166960K 13 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 600 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 218 73K 79K 166960K 17711 0 UVM aobj 131 8K 8K 166960K 134 0 pinsyscall 38 76K 104K 166960K 2807 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 116 0 NDP 15 0K 2K 166960K 63 0 temp 79 6828K 6942K 166960K 61438 0 kqueue 13 20K 28K 166960K 279 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 120 183 0 179 3 1 2 2 0 8 1 rtentry 112 175 0 113 4 0 4 4 0 8 0 unpcb 144 1146 0 1129 10 5 5 5 0 8 4 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 600 0 595 15 14 1 8 0 8 0 arp 120 28 0 14 1 0 1 1 0 8 0 inpcb 336 2290 0 2280 29 22 7 12 0 8 6 nd6 136 38 0 25 1 0 1 1 0 8 0 pkpcb 40 11 0 11 4 4 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 14 0 14 3 3 0 1 0 8 0 pfstscr 40 4 0 4 4 3 1 1 0 8 1 pffrag 232 12 0 2 1 0 1 1 0 482 0 pffrnode 88 11 0 2 1 0 1 1 0 8 0 pffrent 40 17 0 7 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 24 128 0 54 1 0 1 1 0 8 0 pfstkey 128 133 0 57 3 0 3 3 0 8 0 pfstate 376 129 0 57 8 0 8 8 0 8 0 pfrule 1344 26 0 19 2 0 2 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 793 0 478 30 7 23 29 0 8 0 art_table 32 797 0 478 4 0 4 4 0 8 0 art_node 16 170 0 116 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 11 1 0 1 1 0 8 0 semapl 112 58 0 48 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 40 0 23 3 0 3 3 0 8 0 dino2pl 256 4606 0 3106 95 0 95 95 0 8 0 ffsino 272 4606 0 3106 101 0 101 101 0 8 0 nchpl 144 7078 0 6491 63 40 23 63 0 8 0 uvmvnodes 80 5656 0 0 116 0 116 116 0 8 0 vnodes 216 5656 0 0 315 0 315 315 0 8 0 namei 1024 24827 0 24827 5 4 1 2 0 8 1 percpumem 16 73 0 24 1 0 1 1 0 8 0 kstatmem 264 78 0 48 6 4 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 11 0 11 5 4 1 1 0 8 1 scxspl 216 19957 0 19955 15 13 2 8 1 8 1 plimitpl 152 546 0 530 1 0 1 1 0 8 0 sigapl 424 2014 0 1947 10 1 9 9 0 8 0 futexpl 64 24927 0 24925 1 0 1 1 0 8 0 knotepl 120 563 0 0 17 0 17 17 0 8 0 kqueuepl 216 504 0 495 6 4 2 3 0 8 1 pipepl 320 396 0 369 11 8 3 8 0 8 0 fdescpl 496 1974 0 1946 5 0 5 5 0 8 0 filepl 152 14326 0 14072 35 16 19 19 0 8 6 lockfpl 104 638 0 636 1 0 1 1 0 8 0 lockfspl 48 247 0 245 1 0 1 1 0 8 0 sessionpl 144 28 0 20 1 0 1 1 0 8 0 pgrppl 48 86 0 70 1 0 1 1 0 8 0 ucredpl 104 2654 0 2640 1 0 1 1 0 8 0 zombiepl 144 2178 0 2177 1 0 1 1 0 8 0 processpl 1160 2014 0 1947 7 1 6 6 0 8 0 procpl 648 4687 0 4615 8 0 8 8 0 8 0 srpgc 96 8 0 8 3 2 1 1 0 8 1 sosppl 168 15 0 15 5 4 1 1 0 8 1 sockpl 664 3720 0 3689 44 27 17 17 0 8 14 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 151 0 0 19 0 19 19 0 8 0 mcl2k 2048 26 0 0 4 0 4 4 0 8 0 mtagpl 96 108 0 0 3 0 3 3 0 8 0 mbufpl 256 331 0 0 21 0 21 21 0 8 0 bufpl 280 6075 0 107 427 0 427 427 0 8 0 anonpl 24 296879 0 292561 101 61 40 77 0 185 2 amapchunkpl 152 57700 0 57193 42 13 29 34 0 158 3 amappl16 200 7309 0 7273 62 56 6 28 0 8 1 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 126 0 115 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 2638 0 2611 4 1 3 3 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 12 0 11 1 0 1 1 0 8 0 amappl9 144 130 0 130 1 1 0 1 0 8 0 amappl8 136 42 0 39 1 0 1 1 0 8 0 amappl7 128 111 0 99 1 0 1 1 0 8 0 amappl6 120 210 0 208 1 0 1 1 0 8 0 amappl5 112 140 0 126 1 0 1 1 0 8 0 amappl4 104 333 0 312 1 0 1 1 0 8 0 amappl3 96 10936 0 10853 3 0 3 3 0 8 0 amappl2 88 2271 0 2189 3 0 3 3 0 8 0 amappl1 80 12476 0 11935 15 2 13 14 0 8 0 amappl 88 17182 0 17023 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 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 7 0 7 2 2 0 1 0 8 0 dma128 128 255 0 255 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 1974 0 1946 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1974 0 1946 1 0 1 1 0 8 0 vmmpekpl 168 16675 0 16634 3 0 3 3 0 8 0 vmmpepl 168 126625 0 124914 117 27 90 106 0 357 1 vmsppl 448 1973 0 1946 6 2 4 5 0 8 0 rwobjpl 56 40290 0 33598 98 3 95 95 0 8 0 pdppl 4096 3955 0 3892 117 46 71 85 0 8 8 pvpl 32 19945 0 0 163 2 161 161 0 265 0 pmappl 248 1973 0 1946 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 462 0 104 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83455ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff83553508) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83553508) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a09bc40,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff83553508) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83553508) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a09bda0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83553508) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83553508) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a09bf70) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a09bf70) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78f3ba6afe10, count: -13 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(fffffd806f8ab3d0,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806f8ab3c0,1) at rw_enter+0x122 rrw_enter(fffffd806f8ab3c0,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd805e9c6490,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805e9c6490,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd805e9c6490,ffff800011a26140,df,0,1,188ed1f9c7e5a17b,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd806b2c66a8) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff81f40140,2902,8000,ffffffff8164a270,ffff8000371e8bf8) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff8000371e8a60) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806e000eb8,ffff8000371e8bf8,0,fffffd807f7d3548) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806cdc18f0,ffff8000371e8bf8,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff27b8,3,ffff8000371e8bf8,0,ffff8000371e8cb0) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_read(ffff8000ffff27b8,ffff8000371e8d60,ffff8000371e8cb0) at sys_read+0xa2 sys/kern/sys_generic.c:172 syscall(ffff8000371e8d60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371e8d60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b2c3b46a60, count: -16