witness: lock order reversal: 1st 0xfffffd806c45c110 vmmaplk (&map->lock) 2nd 0xfffffd806decd4d8 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_readv+0xd8 sys/kern/sys_generic.c:199 #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{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(fffffd806decd4d8,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806decd4c8,1) at rw_enter+0x122 rrw_enter(fffffd806decd4c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd806be918c8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806be918c8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd806be918c8,ffff800011a26900,3e,0,1,60ee3a7feef59f35,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd806116ab18) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff82c28370,2902,8000,ffffffff8110bec0,ffff80003238cd60) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80003238cb50) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807636dd08,ffff80003238cd60,0,fffffd807f7d3618) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806e0f8c88,ffff80003238cd60,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000fffe8a58,3,ffff80003238cd60,0,ffff80003238ce20) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff8000fffe8a58,ffff80003238ced0,ffff80003238ce20) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80003238ced0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80003238ced0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xddc7cbd1300, count: -16 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003238c610 rbx 0xfffffd80042c9fa8 rdx 0 rcx 0xffff8000fffe8a58 rax 0xffffffff83447ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003238c4f0 r9 0x8080808080808080 r10 0x163a50e44783eeaf r11 0x99bc93344d827aac r12 0 r13 0xfffffd8003ae2e00 r14 0x3 r15 0xffffffff rip 0xffffffff8243d395 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003238c600 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=138359 pid=79056 tcnt=3 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=0xffff8000fffe8ce0,0xffff8000fffe87e0 process=0xffff8000fffe4910 user=0xffff800032387000, vmspace=0xfffffd806c45c018 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34811 508706 46291 0 2 0 syz-executor 34811 77217 46291 0 3 0x4000080 fsleep syz-executor 6222 412866 66358 0 2 0 syz-executor 6222 394242 66358 0 3 0x4000080 fsleep syz-executor 3337 328280 37923 0 2 0 syz-executor 3337 64250 37923 0 3 0x4000080 fsleep syz-executor 79056 304607 19751 0 2 0 syz-executor *79056 138359 19751 0 7 0x4000000 syz-executor 79056 137347 19751 0 3 0x4000080 fsleep syz-executor 55000 303156 69874 0 2 0 syz-executor 55000 173024 69874 0 3 0x4000080 fsleep syz-executor 55000 366098 69874 0 2 0x4000000 syz-executor 86188 99897 1 0 3 0x80 nanoslp init 3011 349076 0 0 3 0x14200 acct acct 73705 185653 0 0 3 0x14280 nfsidl nfsio 297 315030 0 0 3 0x14280 nfsidl nfsio 3697 332688 0 0 3 0x14280 nfsidl nfsio 45296 284664 0 0 3 0x14280 nfsidl nfsio 39703 297525 0 0 3 0x14280 nfsidl nfsio 73240 238551 0 0 3 0x14280 nfsidl nfsio 42471 211621 0 0 3 0x14280 nfsidl nfsio 59083 205278 0 0 3 0x14280 nfsidl nfsio 19810 328615 0 0 3 0x14280 nfsidl nfsio 67909 183590 0 0 3 0x14280 nfsidl nfsio 50551 10403 0 0 3 0x14280 nfsidl nfsio 56105 180550 0 0 3 0x14280 nfsidl nfsio 3334 201854 0 0 3 0x14280 nfsidl nfsio 71333 27983 0 0 3 0x14280 nfsidl nfsio 97591 263597 0 0 3 0x14280 nfsidl nfsio 63403 237762 0 0 3 0x14280 nfsidl nfsio 78504 371327 0 0 3 0x14280 nfsidl nfsio 92444 296384 0 0 3 0x14280 nfsidl nfsio 59456 91305 0 0 3 0x14280 nfsidl nfsio 44644 332389 0 0 3 0x14280 nfsidl nfsio 84793 71767 0 0 3 0x14200 bored sosplice 37923 97883 87236 0 3 0x82 nanoslp syz-executor 19751 447619 87236 0 3 0x82 nanoslp syz-executor 27573 56648 87236 0 2 0x2 syz-executor 32270 389321 87236 0 2 0x2 syz-executor 61908 486850 87236 0 3 0x82 wait syz-executor 66358 235646 87236 0 3 0x82 nanoslp syz-executor 69874 511787 87236 0 3 0x82 nanoslp syz-executor 46291 235863 87236 0 3 0x82 nanoslp syz-executor 87236 28380 94120 0 3 0x82 kqread syz-executor 94120 306073 24070 0 3 0x10008a sigsusp ksh 24070 8163 39744 0 3 0x98 kqread sshd-session 39744 203632 4322 0 3 0x92 kqread sshd-session 4322 309683 1 0 3 0x88 kqread sshd 11287 206927 3599 74 3 0x1100092 bpf pflogd 3599 290978 1 0 3 0x80 sbwait pflogd 5356 482012 45803 73 3 0x1100090 kqread syslogd 45803 45188 1 0 3 0x100082 sbwait syslogd 79566 65678 1 0 3 0x100080 kqread resolvd 9264 260035 90990 77 3 0x100092 kqread dhcpleased 76133 288553 90990 77 3 0x100092 kqread dhcpleased 90990 427985 1 0 3 0x80 kqread dhcpleased 14542 439985 0 0 3 0x14200 bored smr 89245 445767 0 0 2 0x14200 zerothread 60716 217153 0 0 3 0x14200 aiodoned aiodoned 91464 491252 0 0 3 0x14200 syncer update 77890 434399 0 0 3 0x14200 cleaner cleaner 58320 46374 0 0 3 0x14200 reaper reaper 69306 488589 0 0 3 0x14200 pgdaemon pagedaemon 96506 12042 0 0 3 0x14200 bored viomb 16809 102799 0 0 3 0x40014200 acpi0 acpi0 79856 15438 0 0 7 0x40014200 idle1 83257 365651 0 0 3 0x14200 bored softnet3 55263 399004 0 0 3 0x14200 bored softnet2 1540 401474 0 0 3 0x14200 bored softnet1 20788 235259 0 0 3 0x14200 bored softnet0 75102 199111 0 0 3 0x14200 bored systqmp 18832 145135 0 0 3 0x14200 bored systq 52527 127954 0 0 3 0x14200 tmoslp softclockmp 98607 102833 0 0 3 0x40014200 tmoslp softclock 54099 95682 0 0 3 0x40014200 idle0 1 179146 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 79056 (syz-executor) thread 0xffff8000fffe8a58 (138359) shared rwlock vmmaplk r = 0 (0xfffffd806c45c110) #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_readv+0xd8 sys/kern/sys_generic.c:199 #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 (0xffffffff835e4b08) #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+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Process 27573 (syz-executor) thread 0xffff800029fd8008 (56648) exclusive rrwlock inode r = 0 (0xfffffd806e0f70a8) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #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:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c6212b8) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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 32270 (syz-executor) thread 0xffff80002a03fbf0 (389321) exclusive rrwlock inode r = 0 (0xfffffd806df8b808) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #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:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c621918) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10285 11161K 15340K 166960K 12961 0 pcb 18 15K 16K 166960K 239 0 rtable 183 7K 8K 166960K 537 0 pf 37 18K 274K 166960K 109 0 ifaddr 37 6K 7K 166960K 70 0 ifgroup 55 2K 2K 166960K 116 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 37K 166960K 100 0 ioctlops 0 0K 4K 166960K 1659 0 iov 0 0K 20K 166960K 184 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1487 93K 94K 166960K 2513 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 42 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 93K 166960K 1070 0 sigio 0 0K 0K 166960K 17 0 proc 64 79K 140K 166960K 658 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 236 0 in_multi 76 5K 7K 166960K 161 0 ether_multi 1 0K 0K 166960K 12 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 527 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 227 73K 87K 166960K 11648 0 UVM aobj 131 4K 4K 166960K 135 0 pinsyscall 40 80K 104K 166960K 2213 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 54 0 NDP 12 0K 2K 166960K 47 0 temp 69 6826K 6906K 166960K 38514 0 kqueue 13 20K 32K 166960K 184 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 120 136 0 133 1 0 1 1 0 8 0 rtentry 112 140 0 62 4 0 4 4 0 8 0 unpcb 144 879 0 838 11 9 2 6 0 8 0 syncache 336 11 0 11 3 3 0 1 0 8 0 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 808 469 0 464 22 20 2 8 0 8 1 arp 120 25 0 8 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 336 1458 0 1449 27 20 7 7 0 8 5 nd6 136 32 0 11 1 0 1 1 0 8 0 pkpcb 40 5 0 5 3 3 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 9 0 9 3 3 0 1 0 8 0 pfstscr 40 3 0 2 1 0 1 1 0 8 0 pffrag 232 6 0 1 2 1 1 1 0 482 0 pffrnode 88 6 0 1 2 1 1 1 0 8 0 pffrent 40 15 0 10 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 pfrktable 1344 5 0 2 1 0 1 1 0 8 0 pftag 88 4 0 2 1 0 1 1 0 8 0 pfstitem 24 83 0 37 1 0 1 1 0 8 0 pfstkey 128 85 0 38 2 0 2 2 0 8 0 pfstate 376 83 0 38 6 0 6 6 0 8 0 pfrule 1344 30 0 23 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 564 0 220 29 2 27 29 0 8 0 art_table 32 565 0 220 4 0 4 4 0 8 0 art_node 16 136 0 69 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 35 0 25 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 3415 0 1919 95 0 95 95 0 8 0 ffsino 272 3415 0 1919 102 1 101 102 0 8 0 nchpl 144 4959 0 3270 63 0 63 63 0 8 0 uvmvnodes 80 4252 0 0 87 0 87 87 0 8 0 vnodes 216 4252 0 0 237 0 237 237 0 8 0 namei 1024 18752 0 18750 4 3 1 2 0 8 0 percpumem 16 64 0 18 1 0 1 1 0 8 0 kstatmem 264 60 0 36 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 14085 0 14085 10 9 1 8 1 8 1 plimitpl 152 401 0 385 1 0 1 1 0 8 0 sigapl 424 1412 0 1342 9 0 9 9 0 8 0 futexpl 64 15191 0 15186 1 0 1 1 0 8 0 knotepl 120 565 0 0 18 0 18 18 0 8 0 kqueuepl 216 384 0 375 4 3 1 3 0 8 0 pipepl 320 309 0 282 6 3 3 6 0 8 0 fdescpl 496 1369 0 1339 5 0 5 5 0 8 0 filepl 152 10419 0 10083 31 18 13 20 0 8 0 lockfpl 104 1046 0 1044 6 5 1 4 0 8 0 lockfspl 48 296 0 294 1 0 1 1 0 8 0 sessionpl 144 31 0 23 1 0 1 1 0 8 0 pgrppl 48 197 0 181 1 0 1 1 0 8 0 ucredpl 104 1785 0 1771 1 0 1 1 0 8 0 zombiepl 144 1343 0 1342 3 2 1 1 0 8 0 processpl 1160 1412 0 1342 6 0 6 6 0 8 0 procpl 648 2832 0 2755 8 0 8 8 0 8 0 sosppl 168 3 0 3 2 2 0 1 0 8 0 sockpl 664 2520 0 2467 36 27 9 17 0 8 4 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 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 137 0 0 18 0 18 18 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 53 0 0 2 0 2 2 0 8 0 mbufpl 256 1260 0 0 79 0 79 79 0 8 0 bufpl 280 8098 0 1923 442 0 442 442 0 8 0 anonpl 24 240078 0 235230 98 64 34 58 0 185 0 amapchunkpl 152 37627 0 37092 36 10 26 29 0 158 3 amappl16 200 5991 0 5942 43 39 4 16 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 131 0 120 1 0 1 1 0 8 0 amappl13 176 12 0 11 3 2 1 1 0 8 0 amappl12 168 2035 0 2006 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 13 0 13 2 2 0 1 0 8 0 amappl9 144 128 0 127 1 0 1 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 119 0 108 1 0 1 1 0 8 0 amappl6 120 168 0 167 1 0 1 1 0 8 0 amappl5 112 150 0 137 1 0 1 1 0 8 0 amappl4 104 347 0 330 1 0 1 1 0 8 0 amappl3 96 7148 0 7061 3 0 3 3 0 8 0 amappl2 88 1720 0 1637 5 2 3 3 0 8 0 amappl1 80 12216 0 11673 16 3 13 14 0 8 0 amappl 88 11115 0 10946 5 0 5 5 0 92 0 dma16384 16384 2 0 2 1 1 0 1 0 8 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 1369 0 1339 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1369 0 1339 1 0 1 1 0 8 0 vmmpekpl 168 12554 0 12518 3 0 3 3 0 8 0 vmmpepl 168 91942 0 90140 115 28 87 97 0 357 0 vmsppl 448 1368 0 1339 6 2 4 5 0 8 0 rwobjpl 56 32154 0 26859 78 3 75 75 0 8 0 pdppl 4096 2745 0 2678 127 56 71 85 0 8 4 pvpl 32 16448 0 0 134 1 133 133 0 265 0 pmappl 248 1368 0 1339 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 529 0 113 13 0 13 13 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(fffffd806decd4d8,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806decd4c8,1) at rw_enter+0x122 rrw_enter(fffffd806decd4c8,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd806be918c8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd806be918c8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd806be918c8,ffff800011a26900,3e,0,1,60ee3a7feef59f35,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd806116ab18) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff82c28370,2902,8000,ffffffff8110bec0,ffff80003238cd60) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff80003238cb50) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807636dd08,ffff80003238cd60,0,fffffd807f7d3618) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806e0f8c88,ffff80003238cd60,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000fffe8a58,3,ffff80003238cd60,0,ffff80003238ce20) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff8000fffe8a58,ffff80003238ced0,ffff80003238ce20) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff80003238ced0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80003238ced0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xddc7cbd1300, count: -16 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5