panic: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 35758 5196 0 0x8000000 0x4000000 1K syz-executor 493430 4995 0 0x8000002 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d70b0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308ab4a,ffffffff830aa06a,27f,ffffffff83026945) at __assert+0x29 vdoom(fffffd806b4a91e8) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff8000371d7538) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd806b4a91e8,ffff8000ffff27c8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd806b4a91e8,8,ffff8000ffff27c8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd806b4a91e8,ffff8000ffff27c8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff8000371d76c8) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd806b4a9110,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff8000371d7b90,3,ffff8000ffff27c8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806de987a0,40287401,ffff8000371d7b90,3,fffffd807f7d34e0,ffff8000ffff27c8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bf60428,40287401,ffff8000371d7b90,ffff8000ffff27c8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000ffff27c8,ffff8000371d7d70,ffff8000371d7cc0) at sys_ioctl+0x67c end trace frame: 0xffff8000371d7d60, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d70b0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308ab4a,ffffffff830aa06a,27f,ffffffff83026945) at __assert+0x29 vdoom(fffffd806b4a91e8) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff8000371d7538) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd806b4a91e8,ffff8000ffff27c8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd806b4a91e8,8,ffff8000ffff27c8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd806b4a91e8,ffff8000ffff27c8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff8000371d76c8) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd806b4a9110,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff8000371d7b90,3,ffff8000ffff27c8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806de987a0,40287401,ffff8000371d7b90,3,fffffd807f7d34e0,ffff8000ffff27c8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bf60428,40287401,ffff8000371d7b90,ffff8000ffff27c8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000ffff27c8,ffff8000371d7d70,ffff8000371d7cc0) at sys_ioctl+0x67c syscall(ffff8000371d7d70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371d7d70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc604b72c560, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000371d73c0 rbx 0xffff800029b7cd87 rdx 0xffff80000118aa00 rcx 0xffff8000ffff27c8 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa0f793de569914b3 r11 0x13c3fcf67f34ef2c r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff81ff41c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371d73b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=35758 pid=5196 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=59, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff2a50,0xffff8000ffffb6f8 process=0xffff8000ffff7618 user=0xffff8000371d2000, vmspace=0xfffffd806c726dd8 estcpu=9, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 73933 501528 92325 0 2 0x8000000 syz-executor 37157 419250 70276 0 2 0x8000000 syz-executor 45373 162206 16831 0 2 0x8000000 syz-executor 45373 430358 16831 0 2 0xc000000 syz-executor 45373 192069 16831 0 3 0xc000080 fsleep syz-executor 97715 353361 80357 0 2 0x8000000 syz-executor 97715 419082 80357 0 3 0xc000080 fsleep syz-executor 5196 205843 6155 0 2 0x8000000 syz-executor * 5196 35758 6155 0 7 0xc000000 syz-executor 92325 153512 27188 0 3 0x8000082 nanoslp syz-executor 40157 203170 27188 0 3 0x8000082 nanoslp syz-executor 16831 56100 27188 0 3 0x8000082 nanoslp syz-executor 80357 328321 27188 0 3 0x8000082 nanoslp syz-executor 56652 315148 27188 0 3 0x8000002 biowait syz-executor 6155 166046 27188 0 3 0x8000082 nanoslp syz-executor 4995 493430 27188 0 7 0x8000002 syz-executor 70276 251810 27188 0 3 0x8000082 nanoslp syz-executor 27188 217465 29530 0 3 0x8000082 kqread syz-executor 29530 433957 95926 0 3 0x810008a sigsusp ksh 95926 319771 64202 0 3 0x18000098 kqread sshd-session 64202 325777 31610 0 3 0x18000092 kqread sshd-session 87052 30301 1 0 3 0x18100083 ttyin getty 31610 446541 1 0 3 0x18000088 kqread sshd 55864 155636 61353 74 3 0x19100092 bpf pflogd 61353 179780 1 0 3 0x18000080 sbwait pflogd 1546 160685 29380 73 3 0x19100090 kqread syslogd 29380 365469 1 0 3 0x18100082 sbwait syslogd 59727 64539 1 0 3 0x18100080 kqread resolvd 12455 72379 17805 77 3 0x18100092 kqread dhcpleased 64659 52278 17805 77 3 0x18100092 kqread dhcpleased 17805 424586 1 0 3 0x18000080 kqread dhcpleased 41679 220371 0 0 3 0x14200 bored smr 16540 348480 0 0 2 0x14200 zerothread 10196 416773 0 0 3 0x14200 aiodoned aiodoned 57512 26604 0 0 3 0x14200 syncer update 17016 512871 0 0 3 0x14200 cleaner cleaner 3326 475653 0 0 3 0x14200 reaper reaper 26167 312975 0 0 3 0x14200 pgdaemon pagedaemon 69722 166017 0 0 3 0x14200 bored viomb 67010 500559 0 0 3 0x40014200 acpi0 acpi0 18645 516910 0 0 3 0x40014200 idle1 63353 148719 0 0 3 0x14200 bored softnet3 49934 449093 0 0 3 0x14200 bored softnet2 24535 142649 0 0 3 0x14200 bored softnet1 17489 97347 0 0 3 0x14200 bored softnet0 11284 155500 0 0 3 0x14200 bored systqmp 45800 522740 0 0 3 0x14200 bored systq 93189 305936 0 0 3 0x14200 tmoslp softclockmp 46254 18545 0 0 3 0x40014200 tmoslp softclock 32858 341678 0 0 3 0x40014200 idle0 1 64721 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff8348b0d8) #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 vdoom+0x2b sys/kern/vfs_subr.c:639 #4 ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 #5 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #6 vclean+0x234 sys/kern/vfs_subr.c:1107 #7 vgonel+0xec sys/kern/vfs_subr.c:1197 #8 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 #9 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #10 ptmioctl+0x832 sys/kern/tty_pty.c:1172 #11 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #12 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #13 sys_ioctl+0x67c #14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 5196 (syz-executor) thread 0xffff8000ffff27c8 (35758) exclusive rrwlock inode r = 0 (0xfffffd806b3f11b0) #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 vclean+0x176 sys/kern/vfs_subr.c:1081 #5 vgonel+0xec sys/kern/vfs_subr.c:1197 #6 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 #7 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #8 ptmioctl+0x832 sys/kern/tty_pty.c:1172 #9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #11 sys_ioctl+0x67c #12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8356b120) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x229 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #7 vclean+0x176 sys/kern/vfs_subr.c:1081 #8 vgonel+0xec sys/kern/vfs_subr.c:1197 #9 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 #10 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #11 ptmioctl+0x832 sys/kern/tty_pty.c:1172 #12 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #13 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #14 sys_ioctl+0x67c #15 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #15 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff8348b0d8) #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 vdoom+0x2b sys/kern/vfs_subr.c:639 #4 ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 #5 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #6 vclean+0x234 sys/kern/vfs_subr.c:1107 #7 vgonel+0xec sys/kern/vfs_subr.c:1197 #8 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 #9 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #10 ptmioctl+0x832 sys/kern/tty_pty.c:1172 #11 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #12 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #13 sys_ioctl+0x67c #14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 56652 (syz-executor) thread 0xffff8000ffffb460 (315148) exclusive rrwlock inode r = 0 (0xfffffd80714481b0) #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 (0xfffffd806cd6bf88) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 10486K 10486K 166960K 11350 0 pcb 18 12K 12K 166960K 32 0 rtable 212 5K 7K 166960K 349 0 pf 32 9K 10K 166960K 43 0 ifaddr 44 15K 15K 166960K 47 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 0K 0K 166960K 1 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 4K 166960K 1487 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1375 86K 86K 166960K 1441 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 93K 166960K 185 0 sigio 0 0K 0K 166960K 1 0 proc 70 91K 128K 166960K 529 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 4 0 in_multi 96 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 362 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 76K 81K 166960K 3243 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 41 82K 106K 166960K 1254 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 12 0K 2K 166960K 28 0 temp 36 6802K 14738K 166960K 4129 0 kqueue 13 20K 26K 166960K 28 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 38 0 35 1 0 1 1 0 8 0 rtentry 112 111 0 12 4 0 4 4 0 8 0 unpcb 144 82 0 63 2 0 2 2 0 8 1 syncache 336 3 0 3 2 1 1 1 0 8 1 tcpcb 808 21 0 17 2 0 2 2 0 8 1 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 336 115 0 106 2 0 2 2 0 8 1 nd6 136 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 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 1 0 0 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 19 0 0 1 0 1 1 0 8 0 pfstkey 128 19 0 0 1 0 1 1 0 8 0 pfstate 376 19 0 0 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 41 29 0 29 29 0 8 1 art_table 32 454 0 41 4 0 4 4 0 8 0 art_node 16 110 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1646 0 139 95 0 95 95 0 8 0 ffsino 272 1646 0 139 101 0 101 101 0 8 0 nchpl 144 1908 0 226 63 0 63 63 0 8 0 uvmvnodes 80 1796 0 0 37 0 37 37 0 8 0 vnodes 216 1796 0 0 100 0 100 100 0 8 0 namei 1024 5847 0 5846 2 0 2 2 0 8 1 percpumem 16 46 0 0 1 0 1 1 0 8 0 vcpupl 3904 1 0 0 1 0 1 1 0 8 0 vmpool 696 2 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 5440 0 5439 3 1 2 2 1 8 1 plimitpl 152 102 0 84 1 0 1 1 0 8 0 sigapl 424 483 0 435 8 1 7 7 0 8 1 futexpl 64 944 0 942 1 0 1 1 0 8 0 knotepl 120 305 0 0 10 0 10 10 0 8 0 kqueuepl 216 39 0 30 1 0 1 1 0 8 0 pipepl 320 110 0 83 3 0 3 3 0 8 0 fdescpl 496 465 0 435 5 0 5 5 0 8 0 filepl 152 1816 0 1560 11 0 11 11 0 8 0 lockfpl 104 25 0 23 1 0 1 1 0 8 0 lockfspl 48 13 0 11 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 134 0 121 1 0 1 1 0 8 0 zombiepl 144 436 0 435 1 0 1 1 0 8 0 processpl 1152 483 0 435 5 0 5 5 0 8 1 procpl 648 561 0 509 7 1 6 6 0 8 1 sockpl 664 238 0 207 4 0 4 4 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 234 0 0 30 0 30 30 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 241 0 0 16 0 16 16 0 8 0 bufpl 280 2275 0 98 156 0 156 156 0 8 0 anonpl 24 167349 0 164155 26 3 23 25 0 185 1 amapchunkpl 152 10852 0 10428 21 0 21 21 0 158 0 amappl16 200 4755 0 4739 5 2 3 5 0 8 2 amappl15 192 28 0 28 1 1 0 1 0 8 0 amappl14 184 123 0 111 1 0 1 1 0 8 0 amappl13 176 80 0 80 1 1 0 1 0 8 0 amappl12 168 1120 0 1089 3 0 3 3 0 8 0 amappl11 160 53 0 39 1 0 1 1 0 8 0 amappl10 152 18 0 18 1 1 0 1 0 8 0 amappl9 144 159 0 159 1 1 0 1 0 8 0 amappl8 136 36 0 34 1 0 1 1 0 8 0 amappl7 128 110 0 98 1 0 1 1 0 8 0 amappl6 120 166 0 165 1 0 1 1 0 8 0 amappl5 112 141 0 130 1 0 1 1 0 8 0 amappl4 104 320 0 300 1 0 1 1 0 8 0 amappl3 96 1958 0 1859 4 0 4 4 0 8 0 amappl2 88 613 0 552 2 0 2 2 0 8 0 amappl1 80 7858 0 7285 15 0 15 15 0 8 2 amappl 88 2874 0 2722 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 467 0 436 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 467 0 436 1 0 1 1 0 8 0 vmmpekpl 168 5875 0 5840 3 1 2 2 0 8 0 vmmpepl 168 38464 0 36681 86 0 86 86 0 357 4 vmsppl 440 466 0 436 6 1 5 5 0 8 1 rwobjpl 56 17770 0 15071 39 0 39 39 0 8 0 pdppl 4096 941 0 873 97 23 74 85 0 8 6 pvpl 32 10697 0 0 88 1 87 87 0 265 0 pmappl 248 466 0 436 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 385 0 26 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8341fff0) 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(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a0be8d0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 vn_closefile(fffffd806bf60d10,ffff8000ffffdbe8) at vn_closefile+0x41 sys/kern/vfs_vnops.c:602 fdrop(fffffd806bf60d10,ffff8000ffffdbe8) at fdrop+0x126 sys/kern/kern_descrip.c:1274 closef(fffffd806bf60d10,ffff8000ffffdbe8) at closef+0x192 sys/kern/kern_descrip.c:1258 syscall(ffff80002a0bebb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0bebb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc477b55190, count: 3 ddb{0}> trace x86_ipi_db(ffffffff8341fff0) 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(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a0be8d0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 vn_closefile(fffffd806bf60d10,ffff8000ffffdbe8) at vn_closefile+0x41 sys/kern/vfs_vnops.c:602 fdrop(fffffd806bf60d10,ffff8000ffffdbe8) at fdrop+0x126 sys/kern/kern_descrip.c:1274 closef(fffffd806bf60d10,ffff8000ffffdbe8) at closef+0x192 sys/kern/kern_descrip.c:1258 syscall(ffff80002a0bebb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0bebb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc477b55190, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d70b0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308ab4a,ffffffff830aa06a,27f,ffffffff83026945) at __assert+0x29 vdoom(fffffd806b4a91e8) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff8000371d7538) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd806b4a91e8,ffff8000ffff27c8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd806b4a91e8,8,ffff8000ffff27c8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd806b4a91e8,ffff8000ffff27c8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff8000371d76c8) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd806b4a9110,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff8000371d7b90,3,ffff8000ffff27c8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806de987a0,40287401,ffff8000371d7b90,3,fffffd807f7d34e0,ffff8000ffff27c8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bf60428,40287401,ffff8000371d7b90,ffff8000ffff27c8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000ffff27c8,ffff8000371d7d70,ffff8000371d7cc0) at sys_ioctl+0x67c end trace frame: 0xffff8000371d7d60, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d70b0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308ab4a,ffffffff830aa06a,27f,ffffffff83026945) at __assert+0x29 vdoom(fffffd806b4a91e8) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff8000371d7538) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd806b4a91e8,ffff8000ffff27c8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd806b4a91e8,8,ffff8000ffff27c8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd806b4a91e8,ffff8000ffff27c8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff8000371d76c8) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd806b4a9110,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff8000371d7b90,3,ffff8000ffff27c8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806de987a0,40287401,ffff8000371d7b90,3,fffffd807f7d34e0,ffff8000ffff27c8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bf60428,40287401,ffff8000371d7b90,ffff8000ffff27c8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000ffff27c8,ffff8000371d7d70,ffff8000371d7cc0) at sys_ioctl+0x67c syscall(ffff8000371d7d70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371d7d70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc604b72c560, count: -16