witness: lock order reversal: 1st 0xfffffd806b61fbd8 vmmaplk (&map->lock) 2nd 0xfffffd806432f2d8 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{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:437 witness_checkorder(fffffd806432f2d8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806432f2c0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806432f2c0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805eb93a68,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805eb93a68,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_rdwr(0,fffffd805eb93a68,ffff800011a26480,c,0,1,b882500cb71b8f91,0,ffff800000b2a000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd8060d1ae68) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff814caab0,2902,8000,ffffffff813cd180,ffff80002f15a4a0) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80002f15a290) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd8078a77eb8,ffff80002f15a4a0,0,fffffd807f7d36e8) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806b97dee8,ffff80002f15a4a0,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff6a48,3,ffff80002f15a4a0,0,ffff80002f15a560) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff8000ffff6a48,ffff80002f15a610,ffff80002f15a560) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80002f15a610) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f15a610) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f4facf46a0, count: -16 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80002f159d70 rbx 0xfffffd800433c818 rdx 0xffff80000129ac80 rcx 0xffff8000ffff6a48 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80002f159c50 r9 0x8080808080808080 r10 0xbc008933dc26e1f8 r11 0xd681550eb300f99c r12 0 r13 0xfffffd8003b53f00 r14 0x3 r15 0xffffffff rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f159d60 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=197629 pid=51773 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=0xffff8000ffff7978,0xffff8000ffff6038 process=0xffff80003796eff0 user=0xffff80002f155000, vmspace=0xfffffd806b61fad8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15408 353854 33926 0 7 0 syz-executor 21000 224256 4354 0 2 0 syz-executor 21000 467835 4354 0 3 0x4000080 rest syz-executor 98398 246150 43323 0 2 0 syz-executor 98398 455218 43323 0 2 0x4000000 syz-executor 51773 262327 68712 0 2 0 syz-executor *51773 197629 68712 0 7 0x4000000 syz-executor 83639 67625 33867 0 2 0 syz-executor 83639 412375 33867 0 3 0x4000080 lockf syz-executor 83639 174280 33867 0 3 0x4000080 lockf syz-executor 83639 123733 33867 0 3 0x4000080 lockf syz-executor 96388 392595 76433 0 2 0x10 syz-executor 96388 19739 76433 0 3 0x4000090 fsleep syz-executor 96388 337024 76433 0 3 0x4000090 fsleep syz-executor 96388 44005 76433 0 3 0x4000090 fsleep syz-executor 25281 148710 0 0 3 0x14200 bored sosplice 35061 228483 0 0 3 0x14280 nfsidl nfsio 38856 300860 0 0 3 0x14280 nfsidl nfsio 5594 281024 0 0 3 0x14280 nfsidl nfsio 62453 329087 0 0 3 0x14280 nfsidl nfsio 90625 236733 0 0 3 0x14280 nfsidl nfsio 63721 150987 0 0 3 0x14280 nfsidl nfsio 57026 433669 0 0 3 0x14280 nfsidl nfsio 39348 446377 0 0 3 0x14280 nfsidl nfsio 3049 142017 0 0 3 0x14280 nfsidl nfsio 43751 199760 0 0 3 0x14280 nfsidl nfsio 45363 288715 0 0 3 0x14280 nfsidl nfsio 75740 478758 0 0 3 0x14280 nfsidl nfsio 55052 466938 0 0 3 0x14280 nfsidl nfsio 21999 522762 0 0 3 0x14280 nfsidl nfsio 32121 458810 0 0 3 0x14280 nfsidl nfsio 94847 269058 0 0 3 0x14280 nfsidl nfsio 26635 228727 0 0 3 0x14280 nfsidl nfsio 97065 394045 0 0 3 0x14280 nfsidl nfsio 89129 124806 0 0 3 0x14280 nfsidl nfsio 38070 113521 0 0 3 0x14280 nfsidl nfsio 4354 413050 42866 0 3 0x82 nanoslp syz-executor 68712 341944 42866 0 3 0x82 nanoslp syz-executor 33926 497423 42866 0 3 0x82 nanoslp syz-executor 69269 253104 42866 0 2 0x2 syz-executor 6728 418316 42866 0 2 0x2 syz-executor 76433 484957 42866 0 3 0x82 nanoslp syz-executor 43323 337288 42866 0 3 0x82 nanoslp syz-executor 33867 450683 42866 0 3 0x82 nanoslp syz-executor 42866 20960 56826 0 3 0x82 kqread syz-executor 56826 369866 15922 0 3 0x10008a sigsusp ksh 15922 445322 64612 0 3 0x98 kqread sshd-session 64612 367245 47319 0 3 0x92 kqread sshd-session 46106 199466 1 0 3 0x100083 ttyin getty 47319 295623 1 0 3 0x88 kqread sshd 8959 361150 82467 74 3 0x1100092 bpf pflogd 82467 320193 1 0 3 0x80 sbwait pflogd 88257 142404 56534 73 3 0x1100090 kqread syslogd 56534 433656 1 0 3 0x100082 sbwait syslogd 22451 360593 1 0 3 0x100080 kqread resolvd 12762 252174 78149 77 3 0x100092 kqread dhcpleased 30276 306138 78149 77 3 0x100092 kqread dhcpleased 78149 402923 1 0 3 0x80 kqread dhcpleased 73291 214508 0 0 3 0x14200 pause smr 82971 7767 0 0 2 0x14200 zerothread 17851 197658 0 0 3 0x14200 aiodoned aiodoned 37829 49141 0 0 3 0x14200 syncer update 40915 450787 0 0 3 0x14200 cleaner cleaner 37487 182057 0 0 3 0x14200 reaper reaper 69391 395331 0 0 3 0x14200 pgdaemon pagedaemon 81316 68401 0 0 3 0x14200 bored viomb 75862 86772 0 0 3 0x40014200 acpi0 acpi0 2331 149818 0 0 3 0x40014200 idle1 84550 253336 0 0 3 0x14200 bored softnet3 10830 2782 0 0 3 0x14200 bored softnet2 23240 181386 0 0 3 0x14200 bored softnet1 6130 444187 0 0 3 0x14200 bored softnet0 97161 129290 0 0 3 0x14200 bored systqmp 88629 494378 0 0 3 0x14200 bored systq 6304 148391 0 0 3 0x14200 tmoslp softclockmp 91070 132207 0 0 3 0x40014200 tmoslp softclock 34112 79975 0 0 3 0x40014200 idle0 1 293488 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 51773 (syz-executor) thread 0xffff8000ffff6a48 (197629) shared rwlock vmmaplk r = 0 (0xfffffd806b61fbd8) #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 (0xffffffff836710f8) #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 69269 (syz-executor) thread 0xffff8000ffff8a40 (253104) exclusive rrwlock inode r = 0 (0xfffffd806f61e978) #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:3102 #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 (0xfffffd806c9b2768) #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:3087 #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 6728 (syz-executor) thread 0xffff8000ffff8f50 (418316) exclusive rrwlock inode r = 0 (0xfffffd806432fdc8) #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 (0xfffffd806432f1c0) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 11096K 11291K 166960K 11666 0 pcb 17 12K 12K 166960K 54 0 rtable 212 5K 6K 166960K 381 0 pf 34 17K 18K 166960K 53 0 ifaddr 42 7K 7K 166960K 50 0 ifgroup 55 2K 2K 166960K 67 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 70 0 ioctlops 0 0K 4K 166960K 1499 0 iov 0 0K 12K 166960K 74 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1397 88K 88K 166960K 1607 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 93K 166960K 347 0 sigio 0 0K 0K 166960K 7 0 proc 72 91K 128K 166960K 550 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 1 0K 0K 166960K 33 0 in_multi 95 7K 7K 166960K 116 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 2 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 396 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 209 72K 81K 166960K 4708 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 41 82K 105K 166960K 1463 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 12 0K 2K 166960K 32 0 temp 43 6891K 7142K 166960K 15068 0 kqueue 14 22K 28K 166960K 57 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 120 120 0 117 3 2 1 3 0 8 0 rtentry 112 120 0 21 4 0 4 4 0 8 0 unpcb 144 256 0 237 1 0 1 1 0 8 0 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 87 0 82 3 2 1 3 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 376 297 0 287 4 2 2 3 0 8 0 nd6 136 27 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 1 0 1 1 1 0 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 2 1 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 34 0 3 1 0 1 1 0 8 0 pfstkey 128 34 0 3 1 0 1 1 0 8 0 pfstate 376 34 0 3 4 0 4 4 0 8 0 pfrule 1344 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 524 0 81 30 1 29 29 0 8 0 art_table 32 525 0 81 4 0 4 4 0 8 0 art_node 16 117 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 8 0 1 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1962 0 458 95 0 95 95 0 8 0 ffsino 280 1962 0 458 110 1 109 109 0 8 0 nchpl 144 2471 0 788 63 0 63 63 0 8 0 uvmvnodes 80 2194 0 0 45 0 45 45 0 8 0 vnodes 216 2194 0 0 122 0 122 122 0 8 0 namei 1024 8487 0 8486 2 1 1 1 0 8 0 percpumem 16 49 0 3 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 1 0 1 0 8 0 scxspl 216 7411 0 7411 10 9 1 8 1 8 1 plimitpl 152 113 0 95 1 0 1 1 0 8 0 sigapl 424 677 0 608 10 1 9 9 0 8 0 futexpl 64 3410 0 3407 1 0 1 1 0 8 0 knotepl 120 313 0 0 10 0 10 10 0 8 0 kqueuepl 216 136 0 126 5 4 1 5 0 8 0 pipepl 328 229 0 202 10 7 3 10 0 8 0 fdescpl 504 638 0 608 6 1 5 5 0 8 0 filepl 152 3901 0 3676 18 5 13 16 0 8 1 lockfpl 104 143 0 137 1 0 1 1 0 8 0 lockfspl 48 27 0 24 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 777 0 762 1 0 1 1 0 8 0 zombiepl 144 608 0 608 2 1 1 1 0 8 1 processpl 1168 677 0 608 6 0 6 6 0 8 0 procpl 648 1034 0 956 9 1 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sockpl 688 678 0 646 11 7 4 10 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 162 0 0 10 0 10 10 0 8 0 bufpl 280 2730 0 125 187 0 187 187 0 8 0 anonpl 24 73941 0 70591 50 24 26 47 0 185 0 amapchunkpl 152 13581 0 13149 23 1 22 23 0 158 2 amappl16 200 653 0 622 16 13 3 15 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 109 0 97 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 1291 0 1261 4 1 3 3 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 17 0 17 1 1 0 1 0 8 0 amappl9 144 252 0 252 2 2 0 1 0 8 0 amappl8 136 18 0 15 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 183 0 180 1 0 1 1 0 8 0 amappl5 112 118 0 108 1 0 1 1 0 8 0 amappl4 104 351 0 333 1 0 1 1 0 8 0 amappl3 96 2732 0 2632 4 0 4 4 0 8 0 amappl2 88 652 0 590 2 0 2 2 0 8 0 amappl1 80 8790 0 8221 15 1 14 14 0 8 0 amappl 88 4313 0 4160 5 0 5 5 0 92 0 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 0 1 0 1 1 0 8 0 uaddrrnd 24 638 0 608 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 638 0 608 1 0 1 1 0 8 0 vmmpekpl 168 7258 0 7218 3 0 3 3 0 8 0 vmmpepl 168 43479 0 41690 97 12 85 95 0 357 0 vmsppl 456 637 0 608 6 2 4 5 0 8 0 rwobjpl 64 15846 0 12740 53 2 51 52 0 8 0 pdppl 4096 1283 0 1216 111 40 71 85 0 8 4 pvpl 32 15733 0 0 127 0 127 127 0 265 0 pmappl 248 637 0 608 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 294 0 50 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:437 witness_checkorder(fffffd806432f2d8,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806432f2c0,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806432f2c0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805eb93a68,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805eb93a68,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vn_rdwr(0,fffffd805eb93a68,ffff800011a26480,c,0,1,b882500cb71b8f91,0,ffff800000b2a000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd8060d1ae68) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff814caab0,2902,8000,ffffffff813cd180,ffff80002f15a4a0) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80002f15a290) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd8078a77eb8,ffff80002f15a4a0,0,fffffd807f7d36e8) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806b97dee8,ffff80002f15a4a0,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff6a48,3,ffff80002f15a4a0,0,ffff80002f15a560) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff8000ffff6a48,ffff80002f15a610,ffff80002f15a560) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80002f15a610) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f15a610) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f4facf46a0, count: -16 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b5bff0) 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 syscall(ffff80003c590630) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c590630) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7949564b8010, count: -6