witness: lock order reversal: 1st 0xfffffd806bfd44a8 vmmaplk (&map->lock) 2nd 0xfffffd806de8eba0 inode (&ip->i_lock) lock order [1] vmmaplk (&map->lock) -> [2] inode (&ip->i_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #2 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #3 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #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_readv+0xd8 sys/kern/sys_generic.c:199 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 lock order [2] inode (&ip->i_lock) -> [1] vmmaplk (&map->lock) #0 rw_do_enter_read+0x9d sys/kern/kern_rwlock.c:352 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #2 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #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+0xbd4 sys/kern/kern_exec.c:468 #14 start_init+0x3c6 sys/kern/init_main.c:716 #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(fffffd806de8eba0,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de8eb88,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de8eb88,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805f7dd8d0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805f7dd8d0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_rdwr(0,fffffd805f7dd8d0,ffff800011a26480,c,0,1,f97e815355c68d6f,0,ffff800000b2a000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd800ac54138) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff81375230,2902,8000,ffffffff824e8a70,ffff80003c5a8b50) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80003c5a8940) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806dbb3eb8,ffff80003c5a8b50,0,fffffd807f7d34e0) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd805fb26ed8,ffff80003c5a8b50,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002a41d460,3,ffff80003c5a8b50,0,ffff80003c5a8c10) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff80002a41d460,ffff80003c5a8cc0,ffff80003c5a8c10) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80003c5a8cc0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5a8cc0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6bc7c719780, count: -16 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c5a8420 rbx 0xfffffd8004341680 rdx 0xffff800001327140 rcx 0xffff80002a41d460 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c5a8300 r9 0x8080808080808080 r10 0x5c20e3b672760f62 r11 0x967ed49a5002e24e r12 0 r13 0xfffffd8003b58f00 r14 0x3 r15 0xffffffff rip 0xffffffff81bee6b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5a8410 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=161799 pid=19212 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=0xffff800038183978,0xffff80002a41dc08 process=0xffff80003c5afdd0 user=0xffff80003c5a3000, vmspace=0xfffffd806bfd43a8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19212 204286 24153 0 7 0 syz-executor *19212 161799 24153 0 7 0x4000000 syz-executor 13507 426558 5793 0 2 0 syz-executor 13507 72428 5793 0 3 0x4000080 fsleep syz-executor 13507 461146 5793 0 3 0x4000080 fsleep syz-executor 37012 90275 36597 0 3 0x80 nanoslp syz-executor 37012 104499 36597 0 3 0x4000080 lockf syz-executor 37012 404842 36597 0 3 0x4000080 fsleep syz-executor 40674 214976 1 0 3 0x82 nanoslp getty 24153 488858 81087 0 3 0x82 nanoslp syz-executor 26215 66041 0 0 3 0x14200 acct acct 17322 201217 0 0 3 0x14200 bored sosplice 81963 90381 74742 0 3 0x100082 sbwait arp 74742 127663 62687 0 3 0x10008a sigsusp sh 5793 252399 81087 0 3 0x82 nanoslp syz-executor 83443 56499 81087 0 3 0x2 biowait syz-executor 36597 260180 81087 0 3 0x82 nanoslp syz-executor 62687 480086 81087 0 3 0x82 wait syz-executor 92539 112115 81087 0 3 0x82 wait syz-executor 91408 78511 81087 0 3 0x2 biowait syz-executor 83230 253856 81087 0 3 0x82 nanoslp syz-executor 81087 74920 74089 0 3 0x82 kqread syz-executor 74089 446080 20675 0 3 0x10008a sigsusp ksh 20675 90466 40752 0 3 0x98 kqread sshd-session 40752 362237 44032 0 3 0x92 kqread sshd-session 44032 124135 1 0 3 0x88 kqread sshd 82867 212862 88704 74 3 0x1100092 bpf pflogd 88704 293438 1 0 3 0x80 sbwait pflogd 58975 192630 97407 73 3 0x1100090 kqread syslogd 97407 107399 1 0 3 0x100082 sbwait syslogd 5021 397713 1 0 3 0x100080 kqread resolvd 43245 473165 17284 77 3 0x100092 kqread dhcpleased 53217 230526 17284 77 3 0x100092 kqread dhcpleased 17284 160464 1 0 3 0x80 kqread dhcpleased 56860 148046 0 0 3 0x14200 bored smr 3400 481042 0 0 2 0x14200 zerothread 78414 450772 0 0 3 0x14200 aiodoned aiodoned 40903 307476 0 0 3 0x14200 syncer update 6055 22762 0 0 3 0x14200 cleaner cleaner 59554 136151 0 0 3 0x14200 reaper reaper 1394 504324 0 0 3 0x14200 pgdaemon pagedaemon 75740 72103 0 0 3 0x14200 bored viomb 65228 364109 0 0 3 0x40014200 acpi0 acpi0 43450 162440 0 0 3 0x40014200 idle1 10945 328218 0 0 3 0x14200 bored softnet3 81547 160811 0 0 3 0x14200 bored softnet2 65580 425313 0 0 3 0x14200 bored softnet1 36774 371745 0 0 2 0x14200 softnet0 42972 504860 0 0 3 0x14200 bored systqmp 2484 32825 0 0 3 0x14200 bored systq 61851 97867 0 0 3 0x14200 tmoslp softclockmp 9910 257984 0 0 3 0x40014200 tmoslp softclock 12373 175700 0 0 3 0x40014200 idle0 1 253236 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 19212 (syz-executor) thread 0xffff80002a41d460 (161799) shared rwlock vmmaplk r = 0 (0xfffffd806bfd44a8) #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_readv+0xd8 sys/kern/sys_generic.c:199 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8365d108) #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_readv+0xd8 sys/kern/sys_generic.c:199 #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 Process 83443 (syz-executor) thread 0xffff8000ffffdbe0 (56499) exclusive rrwlock inode r = 0 (0xfffffd806e5d3988) #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 (0xfffffd806f52fa88) #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 91408 (syz-executor) thread 0xffff80002a41e528 (78511) exclusive rrwlock inode r = 0 (0xfffffd806bbdc0a0) #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 (0xfffffd806ce32990) #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 10220 11035K 11417K 166960K 12140 0 pcb 17 13K 14K 166960K 200 0 rtable 209 6K 6K 166960K 411 0 pf 34 17K 18K 166960K 68 0 ifaddr 42 7K 7K 166960K 63 0 ifgroup 55 2K 2K 166960K 81 0 sysctl 4 1K 2K 166960K 8 0 counters 64 36K 36K 166960K 82 0 ioctlops 0 0K 4K 166960K 1524 0 iov 0 0K 16K 166960K 32 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1360 86K 86K 166960K 1960 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 27 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 97K 166960K 703 0 sigio 0 0K 0K 166960K 6 0 proc 72 91K 140K 166960K 608 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 89 0 in_multi 93 6K 7K 166960K 139 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 205 917K 917K 166960K 205 0 exec 0 0K 1K 166960K 442 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 234 73K 87K 166960K 8235 0 UVM aobj 81 7K 7K 166960K 82 0 pinsyscall 43 86K 104K 166960K 1867 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 14 0K 1K 166960K 41 0 temp 49 6893K 6967K 166960K 32731 0 kqueue 14 22K 32K 166960K 119 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 65 0 61 1 0 1 1 0 8 0 rtentry 112 125 0 29 4 0 4 4 0 8 0 unpcb 144 519 0 502 5 3 2 4 0 8 1 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 182 0 175 4 2 2 4 0 8 1 arp 120 21 0 3 1 0 1 1 0 8 0 inpcb 376 644 0 632 7 4 3 6 0 8 1 nd6 136 26 0 4 1 0 1 1 0 8 0 pkpcb 40 7 0 7 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 6 0 6 1 0 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 1 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 pfstitem 24 50 0 9 1 0 1 1 0 8 0 pfstkey 128 50 0 9 2 0 2 2 0 8 0 pfstate 376 50 0 9 5 0 5 5 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 526 0 130 26 1 25 26 0 8 0 art_table 32 528 0 130 4 0 4 4 0 8 0 art_node 16 124 0 38 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0 semapl 112 25 0 15 1 0 1 1 0 8 0 shmpl 112 79 0 1 3 0 3 3 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2749 0 1246 95 0 95 95 0 8 0 ffsino 280 2749 0 1246 109 0 109 109 0 8 0 nchpl 144 3821 0 3233 63 39 24 63 0 8 1 uvmvnodes 80 3095 0 0 64 0 64 64 0 8 0 vnodes 216 3095 0 0 172 0 172 172 0 8 0 namei 1024 12796 0 12796 2 1 1 2 0 8 1 percpumem 16 55 0 9 1 0 1 1 0 8 0 kstatmem 264 42 0 18 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 13136 0 13134 10 7 3 8 1 8 2 plimitpl 152 231 0 213 1 0 1 1 0 8 0 sigapl 424 1019 0 968 7 0 7 7 0 8 0 futexpl 64 8703 0 8700 1 0 1 1 0 8 0 knotepl 120 798 0 0 25 0 25 25 0 8 0 kqueuepl 216 172 0 162 2 1 1 2 0 8 0 pipepl 328 218 0 190 6 3 3 6 0 8 0 fdescpl 504 999 0 968 6 1 5 6 0 8 0 filepl 152 6079 0 5857 13 2 11 13 0 8 1 lockfpl 104 200 0 196 1 0 1 1 0 8 0 lockfspl 48 85 0 82 1 0 1 1 0 8 0 sessionpl 144 28 0 20 1 0 1 1 0 8 0 pgrppl 48 47 0 31 1 0 1 1 0 8 0 ucredpl 104 1279 0 1263 1 0 1 1 0 8 0 zombiepl 144 970 0 968 1 0 1 1 0 8 0 processpl 1168 1019 0 968 5 0 5 5 0 8 0 procpl 648 1997 0 1941 6 0 6 6 0 8 0 srpgc 96 3 0 3 1 1 0 1 0 8 0 sosppl 168 5 0 5 1 0 1 1 0 8 1 sockpl 688 1276 0 1245 10 5 5 10 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 15 0 0 1 0 1 1 0 8 0 mbufpl 256 211 0 0 14 0 14 14 0 8 0 bufpl 280 4611 0 137 320 0 320 320 0 8 0 anonpl 24 180143 0 174552 59 1 58 58 0 185 15 amapchunkpl 152 26859 0 26287 33 1 32 32 0 158 5 amappl16 200 4022 0 3961 28 16 12 19 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 133 0 120 1 0 1 1 0 8 0 amappl13 176 20 0 19 1 0 1 1 0 8 0 amappl12 168 1679 0 1647 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 117 0 104 1 0 1 1 0 8 0 amappl6 120 197 0 192 1 0 1 1 0 8 0 amappl5 112 143 0 134 1 0 1 1 0 8 0 amappl4 104 347 0 326 1 0 1 1 0 8 0 amappl3 96 5075 0 4965 4 0 4 4 0 8 0 amappl2 88 715 0 649 2 0 2 2 0 8 0 amappl1 80 10891 0 10293 15 1 14 15 0 8 0 amappl 88 7781 0 7606 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 81 0 1 2 0 2 2 0 8 0 uaddrrnd 24 999 0 968 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 999 0 968 1 0 1 1 0 8 0 vmmpekpl 168 10269 0 10227 3 0 3 3 0 8 0 vmmpepl 168 68780 0 66884 99 0 99 99 0 357 5 vmsppl 456 998 0 968 5 0 5 5 0 8 0 rwobjpl 64 24983 0 20793 69 0 69 69 0 8 0 pdppl 4096 2005 0 1936 113 38 75 87 0 8 6 pvpl 32 17300 0 0 142 2 140 140 0 265 0 pmappl 248 998 0 968 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 297 0 46 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(ffffffff83549ff0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff8365cf00) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8365cf00) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800034572b60,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: 0x7284f16e7aa0, count: -7 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(fffffd806de8eba0,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de8eb88,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de8eb88,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805f7dd8d0,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805f7dd8d0,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_rdwr(0,fffffd805f7dd8d0,ffff800011a26480,c,0,1,f97e815355c68d6f,0,ffff800000b2a000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd800ac54138) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff81375230,2902,8000,ffffffff824e8a70,ffff80003c5a8b50) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80003c5a8940) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806dbb3eb8,ffff80003c5a8b50,0,fffffd807f7d34e0) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd805fb26ed8,ffff80003c5a8b50,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002a41d460,3,ffff80003c5a8b50,0,ffff80003c5a8c10) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff80002a41d460,ffff80003c5a8cc0,ffff80003c5a8c10) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80003c5a8cc0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5a8cc0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6bc7c719780, count: -16