panic: vclean: deadlock Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 380843 84469 0 0x8000000 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd8068113560,8,ffff800036f98cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd8068113560,ffff800036f98cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 vcount(fffffd80681132d8) at vcount+0x179 sys/kern/vfs_subr.c:1298 spec_close(ffff80002a128b40) at spec_close+0xb8 sys/kern/spec_vnops.c:480 VOP_CLOSE(fffffd80681132d8,3,fffffd807f7d3548,ffff800036f98cd0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:609 fdrop(fffffd806c4c6310,ffff800036f98cd0) at fdrop+0x126 sys/kern/kern_descrip.c:1274 closef(fffffd806c4c6310,ffff800036f98cd0) at closef+0x192 sys/kern/kern_descrip.c:1258 fdfree(ffff800036f98cd0) at fdfree+0x116 sys/kern/kern_descrip.c:1190 exit1(ffff800036f98cd0,0,0,3) at exit1+0x71b sys/kern/kern_exit.c:221 single_thread_check_locked(ffff800036f98cd0,0) at single_thread_check_locked+0x2d0 sys/kern/kern_sig.c:2078 userret(ffff800036f98cd0) at userret+0x9c sys/kern/kern_sig.c:2033 end trace frame: 0xffff80002a128f20, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: vclean: deadlock ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd8068113560,8,ffff800036f98cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd8068113560,ffff800036f98cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 vcount(fffffd80681132d8) at vcount+0x179 sys/kern/vfs_subr.c:1298 spec_close(ffff80002a128b40) at spec_close+0xb8 sys/kern/spec_vnops.c:480 VOP_CLOSE(fffffd80681132d8,3,fffffd807f7d3548,ffff800036f98cd0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:609 fdrop(fffffd806c4c6310,ffff800036f98cd0) at fdrop+0x126 sys/kern/kern_descrip.c:1274 closef(fffffd806c4c6310,ffff800036f98cd0) at closef+0x192 sys/kern/kern_descrip.c:1258 fdfree(ffff800036f98cd0) at fdfree+0x116 sys/kern/kern_descrip.c:1190 exit1(ffff800036f98cd0,0,0,3) at exit1+0x71b sys/kern/kern_exit.c:221 single_thread_check_locked(ffff800036f98cd0,0) at single_thread_check_locked+0x2d0 sys/kern/kern_sig.c:2078 userret(ffff800036f98cd0) at userret+0x9c sys/kern/kern_sig.c:2033 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x6fe14f9e0600, count: -15 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a1288f0 rbx 0xffffffff834a4d87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff800036f98cd0 rax 0xffffffff834a3ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x251c38c02df9934a r11 0x870c22097a01540 r12 0xffffffff834a4b88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff82d4df45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a1288e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=89563 pid=17687 tcnt=0 stat=onproc flags process=8001008 proc=82000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800037291708 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000ffffd960,0xffffffff83620780 process=0xffff8000371fbaa8 user=0xffff80002a123000, vmspace=0xfffffd806a2ac000 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 84469 380843 69450 0 7 0x8000000 syz-executor 84469 518741 69450 0 3 0xc000080 rest syz-executor 22759 231661 6728 0 2 0x8000000 syz-executor 22759 183964 6728 0 3 0xc000080 fsleep syz-executor 47124 239048 23151 0 2 0x8000000 syz-executor 9441 464115 52400 0 3 0x8000080 nanoslp syz-executor 9441 344230 52400 0 3 0xc000080 netcon syz-executor 9441 80893 52400 0 3 0xc000080 fsleep syz-executor 95511 73164 0 0 3 0x14200 acct acct 73965 90199 25892 0 3 0x8000002 getblk syz-executor 29789 173184 25892 0 3 0x8000002 biowait syz-executor 81003 293612 25892 0 3 0x8000082 nanoslp syz-executor 23151 42378 25892 0 3 0x8000082 nanoslp syz-executor 64589 496839 25892 0 3 0x8000082 nanoslp syz-executor 6728 449847 25892 0 3 0x8000082 nanoslp syz-executor 69450 106057 25892 0 3 0x8000082 nanoslp syz-executor 52400 318143 25892 0 3 0x8000082 nanoslp syz-executor 92121 376816 1 0 3 0x18100083 ttyin getty 25539 291328 0 0 3 0x14200 bored sosplice 96978 341230 0 0 3 0x14280 nfsidl nfsio 70458 395572 0 0 3 0x14280 nfsidl nfsio 6540 456118 0 0 3 0x14280 nfsidl nfsio 79597 243201 0 0 3 0x14280 nfsidl nfsio 99189 11338 0 0 3 0x14280 nfsidl nfsio 83904 8512 0 0 3 0x14280 nfsidl nfsio 44451 223622 0 0 3 0x14280 nfsidl nfsio 50785 414393 0 0 3 0x14280 nfsidl nfsio 91196 172 0 0 3 0x14280 nfsidl nfsio 99728 427072 0 0 3 0x14280 nfsidl nfsio 45945 54314 0 0 3 0x14280 nfsidl nfsio 14878 177145 0 0 3 0x14280 nfsidl nfsio 64059 150788 0 0 3 0x14280 nfsidl nfsio 62567 519574 0 0 3 0x14280 nfsidl nfsio 30892 430388 0 0 3 0x14280 nfsidl nfsio 4703 476595 0 0 3 0x14280 nfsidl nfsio 99714 92907 0 0 3 0x14280 nfsidl nfsio 12908 90386 0 0 3 0x14280 nfsidl nfsio 26772 137582 0 0 3 0x14280 nfsidl nfsio 53708 410508 0 0 3 0x14280 nfsidl nfsio 25892 240836 5485 0 3 0x8000082 kqread syz-executor 5485 454158 60208 0 3 0x810008a sigsusp ksh 60208 93486 80062 0 3 0x18000098 kqread sshd-session 80062 172087 94070 0 3 0x18000092 kqread sshd-session 94070 449766 1 0 3 0x18000088 kqread sshd 37011 157913 42064 74 3 0x19100092 bpf pflogd 42064 241548 1 0 3 0x18000080 sbwait pflogd 47173 211778 24623 73 3 0x19100010 biowait syslogd 24623 445272 1 0 3 0x18100082 sbwait syslogd 46525 475609 1 0 3 0x18100080 kqread resolvd 29163 424039 53664 77 3 0x18100092 kqread dhcpleased 44107 363771 53664 77 3 0x18100092 kqread dhcpleased 53664 100188 1 0 3 0x18000080 kqread dhcpleased 58125 155393 0 0 2 0x40014200 smr 96144 78196 0 0 2 0x14200 zerothread 32042 366980 0 0 3 0x14200 aiodoned aiodoned 45406 154620 0 0 3 0x14200 syncer update 13931 266036 0 0 3 0x14200 cleaner cleaner 61203 429058 0 0 3 0x14200 reaper reaper 33320 461706 0 0 3 0x14200 pgdaemon pagedaemon 3269 144134 0 0 3 0x14200 bored viomb 7152 187590 0 0 3 0x40014200 acpi0 acpi0 21060 331034 0 0 3 0x40014200 idle1 7359 333302 0 0 3 0x14200 bored softnet3 29570 161972 0 0 3 0x14200 bored softnet2 6777 333695 0 0 3 0x14200 bored softnet1 59830 429442 0 0 3 0x14200 bored softnet0 58932 519338 0 0 3 0x14200 bored systqmp 5817 437239 0 0 3 0x14200 bored systq 55109 284668 0 0 3 0x14200 tmoslp softclockmp 38765 188944 0 0 3 0x40014200 tmoslp softclock 9615 450734 0 0 3 0x40014200 idle0 1 353401 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff8341ff18) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vclean+0x87 sys/kern/vfs_subr.c:1051 #4 vgonel+0xec sys/kern/vfs_subr.c:1197 #5 vcount+0x179 sys/kern/vfs_subr.c:1298 #6 spec_close+0xb8 sys/kern/spec_vnops.c:480 #7 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 #8 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #8 vn_closefile+0x12b sys/kern/vfs_vnops.c:609 #9 fdrop+0x126 sys/kern/kern_descrip.c:1274 #10 closef+0x192 sys/kern/kern_descrip.c:1258 #11 fdfree+0x116 sys/kern/kern_descrip.c:1190 #12 exit1+0x71b sys/kern/kern_exit.c:221 #13 single_thread_check_locked+0x2d0 sys/kern/kern_sig.c:2078 #14 userret+0x9c sys/kern/kern_sig.c:2033 #15 intr_user_exit+0x3c Process 73965 (syz-executor) thread 0xffff800036f982b0 (90199) exclusive rrwlock inode r = 0 (0xfffffd8059b8cb48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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:696 #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:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 29789 (syz-executor) thread 0xffff800036f99468 (173184) exclusive rrwlock inode r = 0 (0xfffffd8071391808) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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:120 #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:3100 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8071391c48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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:3085 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 47173 (syslogd) thread 0xffff8000ffffdbe8 (211778) exclusive rrwlock inode r = 0 (0xfffffd806e4b50a0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2927 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 10247K 10712K 166960K 13395 0 pcb 17 16K 18K 166960K 291 0 rtable 248 9K 10K 166960K 2077 0 pf 37 10K 12K 166960K 176 0 ifaddr 47 16K 16K 166960K 267 0 ifgroup 63 2K 2K 166960K 282 0 sysctl 2 0K 0K 166960K 2 0 counters 68 36K 37K 166960K 182 0 ioctlops 0 0K 4K 166960K 1579 0 iov 0 0K 12K 166960K 88 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1607 101K 101K 166960K 3455 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 25 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 77 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 93K 166960K 1679 0 sigio 0 0K 0K 166960K 21 0 proc 70 91K 140K 166960K 2002 0 subproc 104 6K 7K 166960K 769 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 291 0 in_multi 99 7K 7K 166960K 694 0 ether_multi 1 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 1170 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 224 72K 95K 166960K 14507 0 UVM aobj 39 4K 6K 166960K 41 0 pinsyscall 41 82K 105K 166960K 4062 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 54 0 NDP 22 1K 1K 166960K 187 0 temp 75 6816K 14749K 166960K 38769 0 kqueue 13 20K 30K 166960K 146 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 120 428 0 425 7 6 1 3 0 8 0 rtentry 112 697 0 585 4 0 4 4 0 8 0 unpcb 144 1586 0 1568 20 14 6 6 0 8 5 syncache 336 8 0 8 5 5 0 1 0 8 0 tcpcb 808 371 0 365 10 9 1 7 0 8 0 arp 120 125 0 107 1 0 1 1 0 8 0 ipq 40 4 0 3 2 1 1 1 0 8 0 ipqe 40 133 0 132 2 1 1 1 0 8 0 inpcb 384 2435 0 2423 36 28 8 12 0 8 6 nd6 136 187 0 162 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 59 0 51 1 0 1 1 0 8 0 ppxss 1168 5 0 5 4 4 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 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 18 0 16 1 0 1 1 0 8 0 pfstkey 128 20 0 18 1 0 1 1 0 8 0 pfstate 376 19 0 17 2 1 1 2 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2727 0 2269 33 4 29 30 0 8 0 art_table 32 2728 0 2269 4 0 4 4 0 8 0 art_node 16 693 0 592 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 12 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 75 0 65 1 0 1 1 0 8 0 shmpl 112 38 0 2 2 0 2 2 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3264 0 1655 101 0 101 101 0 8 0 ffsino 272 3264 0 1655 108 0 108 108 0 8 0 nchpl 144 4760 0 3003 66 0 66 66 0 8 0 uvmvnodes 80 5105 0 0 105 0 105 105 0 8 0 vnodes 216 5105 0 0 284 0 284 284 0 8 0 namei 1024 24336 0 24335 4 3 1 2 0 8 0 percpumem 16 105 0 57 1 0 1 1 0 8 0 vmpool 696 3 0 3 2 2 0 1 0 8 0 kstatmem 264 142 0 114 3 0 3 3 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 216 31023 0 31021 18 15 3 8 1 8 2 plimitpl 152 499 0 482 1 0 1 1 0 8 0 sigapl 424 1902 0 1832 10 1 9 9 0 8 0 futexpl 64 16149 0 16147 6 5 1 1 0 8 0 knotepl 120 589 0 0 17 0 17 17 0 8 0 kqueuepl 216 475 0 466 10 9 1 5 0 8 0 pipepl 320 395 0 368 6 3 3 6 0 8 0 fdescpl 496 1861 0 1831 8 3 5 5 0 8 0 filepl 152 14825 0 14572 51 32 19 21 0 8 6 lockfpl 104 465 0 462 2 0 2 2 0 8 1 lockfspl 48 150 0 147 1 0 1 1 0 8 0 sessionpl 144 73 0 64 1 0 1 1 0 8 0 pgrppl 48 154 0 137 1 0 1 1 0 8 0 ucredpl 104 1913 0 1899 1 0 1 1 0 8 0 zombiepl 144 1834 0 1832 1 0 1 1 0 8 0 processpl 1152 1902 0 1832 6 0 6 6 0 8 0 procpl 648 3397 0 3323 9 1 8 8 0 8 0 srpgc 96 10 0 10 3 3 0 1 0 8 0 sosppl 168 2 0 2 2 2 0 1 0 8 0 sockpl 664 4467 0 4434 60 40 20 20 0 8 16 mcl64k 65536 6 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 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 233 0 0 28 1 27 28 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 486 0 0 26 1 25 26 0 8 0 bufpl 280 10485 0 2928 540 0 540 540 0 8 0 anonpl 24 284950 0 281540 82 29 53 82 0 185 20 amapchunkpl 152 45945 0 45483 48 16 32 42 0 158 12 amappl16 200 4642 0 4625 40 35 5 15 0 8 3 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 212 0 200 1 0 1 1 0 8 0 amappl13 176 7 0 6 1 0 1 1 0 8 0 amappl12 168 3305 0 3275 4 2 2 3 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 4 0 3 1 0 1 1 0 8 0 amappl9 144 148 0 148 1 1 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 205 0 192 1 0 1 1 0 8 0 amappl6 120 663 0 662 1 0 1 1 0 8 0 amappl5 112 338 0 326 1 0 1 1 0 8 0 amappl4 104 469 0 448 1 0 1 1 0 8 0 amappl3 96 8879 0 8770 4 0 4 4 0 8 0 amappl2 88 1324 0 1260 2 0 2 2 0 8 0 amappl1 80 15475 0 14892 17 3 14 15 0 8 1 amappl 88 13700 0 13538 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 40 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1864 0 1834 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1864 0 1834 1 0 1 1 0 8 0 vmmpekpl 168 16782 0 16728 3 0 3 3 0 8 0 vmmpepl 168 119387 0 117559 116 25 91 96 0 357 6 vmsppl 440 1863 0 1834 6 2 4 5 0 8 0 rwobjpl 56 39766 0 33695 89 3 86 86 0 8 0 pdppl 4096 3735 0 3668 177 102 75 85 0 8 8 pvpl 32 44852 0 0 364 2 362 362 0 265 0 pmappl 248 1863 0 1834 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 507 0 131 11 0 11 11 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 panic(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd8068113560,8,ffff800036f98cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd8068113560,ffff800036f98cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 vcount(fffffd80681132d8) at vcount+0x179 sys/kern/vfs_subr.c:1298 spec_close(ffff80002a128b40) at spec_close+0xb8 sys/kern/spec_vnops.c:480 VOP_CLOSE(fffffd80681132d8,3,fffffd807f7d3548,ffff800036f98cd0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c4c6310,ffff800036f98cd0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:609 fdrop(fffffd806c4c6310,ffff800036f98cd0) at fdrop+0x126 sys/kern/kern_descrip.c:1274 closef(fffffd806c4c6310,ffff800036f98cd0) at closef+0x192 sys/kern/kern_descrip.c:1258 fdfree(ffff800036f98cd0) at fdfree+0x116 sys/kern/kern_descrip.c:1190 exit1(ffff800036f98cd0,0,0,3) at exit1+0x71b sys/kern/kern_exit.c:221 single_thread_check_locked(ffff800036f98cd0,0) at single_thread_check_locked+0x2d0 sys/kern/kern_sig.c:2078 userret(ffff800036f98cd0) at userret+0x9c sys/kern/kern_sig.c:2033 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x6fe14f9e0600, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp 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 end of kernel end trace frame: 0x7e24efecb330, count: 12 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 end of kernel end trace frame: 0x7e24efecb330, count: -3