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 *301919 69265 0 0x8000000 0x4000000 0K syz-executor 165989 82351 0 0x8000002 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d879b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308cc41,ffffffff830a7f75,27f,ffffffff83024d44) at __assert+0x29 vdoom(fffffd8068ca7c28) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff800030b7e178) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd8068ca7c28,ffff80003579d6f8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd8068ca7c28,8,ffff80003579d6f8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd8068ca7c28,ffff80003579d6f8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff800030b7e308) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd8068ca79a0,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff800030b7e7d0,3,ffff80003579d6f8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806ded10e0,40287401,ffff800030b7e7d0,3,fffffd807f7d3340,ffff80003579d6f8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8061122870,40287401,ffff800030b7e7d0,ffff80003579d6f8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80003579d6f8,ffff800030b7e9b0,ffff800030b7e900) at sys_ioctl+0x67c end trace frame: 0xffff800030b7e9a0, 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: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830d879b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308cc41,ffffffff830a7f75,27f,ffffffff83024d44) at __assert+0x29 vdoom(fffffd8068ca7c28) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff800030b7e178) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd8068ca7c28,ffff80003579d6f8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd8068ca7c28,8,ffff80003579d6f8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd8068ca7c28,ffff80003579d6f8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff800030b7e308) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd8068ca79a0,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff800030b7e7d0,3,ffff80003579d6f8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806ded10e0,40287401,ffff800030b7e7d0,3,fffffd807f7d3340,ffff80003579d6f8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8061122870,40287401,ffff800030b7e7d0,ffff80003579d6f8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80003579d6f8,ffff800030b7e9b0,ffff800030b7e900) at sys_ioctl+0x67c syscall(ffff800030b7e9b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800030b7e9b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2fdafe6b1c0, count: -16 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800030b7e000 rbx 0xffffffff834a4d87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff80003579d6f8 rax 0xffffffff834a3ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8c622f164f0dd568 r11 0xe01f82c669240f39 r12 0xffffffff834a4b88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff82d4df45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800030b7dff0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=301919 pid=69265 tcnt=3 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003579d980,0xffff80003579cf70 process=0xffff8000ffffad10 user=0xffff800030b79000, vmspace=0xfffffd805f80b1c8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69265 278962 75160 0 2 0x8000000 syz-executor *69265 301919 75160 0 7 0xc000000 syz-executor 69265 73660 75160 0 3 0xc000080 fsleep syz-executor 39066 299500 89141 0 3 0x8000080 nanoslp syz-executor 39066 265969 89141 0 3 0xc000080 sbwait syz-executor 65123 397025 94591 0 2 0x8000000 syz-executor 65123 233465 94591 0 3 0xc000080 sbwait syz-executor 65123 355860 94591 0 3 0xc000080 fsleep syz-executor 65123 372809 94591 0 3 0xc000080 fsleep syz-executor 4290 417986 13893 0 3 0x8000080 nanoslp syz-executor 4290 196 13893 0 3 0xc000080 fsleep syz-executor 4290 313567 13893 0 3 0xc000080 ttyout syz-executor 4290 197322 13893 0 3 0xc000080 fsleep syz-executor 9723 140998 95323 0 3 0x8000080 nanoslp syz-executor 9723 381082 95323 0 3 0xc000080 netacc syz-executor 9723 394958 95323 0 3 0xc000080 fsleep syz-executor 13069 314053 0 0 3 0x14200 acct acct 82351 165989 17384 0 7 0x8000002 syz-executor 13893 391404 17384 0 3 0x8000082 nanoslp syz-executor 28105 449676 17384 0 3 0x8000082 nanoslp syz-executor 94591 169205 17384 0 3 0x8000082 nanoslp syz-executor 75160 113278 17384 0 3 0x8000082 nanoslp syz-executor 24331 241642 17384 0 2 0x8000002 syz-executor 95323 475198 17384 0 3 0x8000082 nanoslp syz-executor 89141 162552 17384 0 3 0x8000082 nanoslp syz-executor 23312 235040 1 0 3 0x18100083 ttyin getty 74266 413673 0 0 3 0x14200 bored sosplice 17384 350920 23132 0 3 0x8000082 kqread syz-executor 23132 490028 48487 0 3 0x810008a sigsusp ksh 48487 485192 98054 0 3 0x18000098 kqread sshd-session 98054 324450 67341 0 3 0x18000092 kqread sshd-session 67341 230461 1 0 3 0x18000088 kqread sshd 96233 463356 40934 74 3 0x19100092 bpf pflogd 40934 324842 1 0 3 0x18000080 sbwait pflogd 36647 60697 1922 73 3 0x19100090 kqread syslogd 1922 299236 1 0 3 0x18100082 sbwait syslogd 10340 163884 1 0 3 0x18100080 kqread resolvd 87691 321899 17365 77 3 0x18100092 kqread dhcpleased 85637 175894 17365 77 3 0x18100092 kqread dhcpleased 17365 434972 1 0 3 0x18000080 kqread dhcpleased 30626 189012 0 0 3 0x14200 bored smr 49499 217247 0 0 2 0x14200 zerothread 312 468492 0 0 3 0x14200 aiodoned aiodoned 70706 74273 0 0 3 0x14200 syncer update 84468 342636 0 0 3 0x14200 cleaner cleaner 34031 187410 0 0 3 0x14200 reaper reaper 2551 213567 0 0 3 0x14200 pgdaemon pagedaemon 57010 42472 0 0 3 0x14200 bored viomb 12976 416837 0 0 3 0x40014200 acpi0 acpi0 9151 163825 0 0 3 0x40014200 idle1 88356 499817 0 0 3 0x14200 bored softnet3 67973 170173 0 0 3 0x14200 bored softnet2 47860 52615 0 0 3 0x14200 bored softnet1 70308 433606 0 0 3 0x14200 bored softnet0 39512 495949 0 0 3 0x14200 bored systqmp 56836 12316 0 0 3 0x14200 bored systq 39461 449054 0 0 3 0x14200 tmoslp softclockmp 17078 102210 0 0 3 0x40014200 tmoslp softclock 67483 14522 0 0 3 0x40014200 idle0 1 215782 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 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 69265 (syz-executor) thread 0xffff80003579d6f8 (301919) exclusive rrwlock inode r = 0 (0xfffffd805fecc918) #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 (0xffffffff8355d7e8) #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 (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 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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10241 10267K 10815K 166960K 13484 0 pcb 19 13K 14K 166960K 250 0 rtable 235 7K 7K 166960K 2337 0 pf 37 10K 12K 166960K 279 0 ifaddr 47 16K 16K 166960K 290 0 ifgroup 61 2K 2K 166960K 321 0 sysctl 2 1K 2K 166960K 3 0 counters 68 36K 36K 166960K 196 0 ioctlops 0 0K 4K 166960K 1751 0 iov 0 0K 24K 166960K 130 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1498 94K 94K 166960K 3539 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 13K 166960K 37 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 146 0 dirhash 12 2K 2K 166960K 93 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 89K 166960K 2307 0 sigio 0 0K 0K 166960K 24 0 proc 70 91K 128K 166960K 2196 0 subproc 104 6K 6K 166960K 832 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 177 0 in_multi 99 7K 7K 166960K 763 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 115 519K 519K 166960K 115 0 exec 0 0K 1K 166960K 1591 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 236 121K 144K 166960K 19607 0 UVM aobj 89 5K 5K 166960K 92 0 pinsyscall 41 82K 102K 166960K 4846 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 128 0 NDP 14 0K 2K 166960K 206 0 temp 77 6816K 6884K 166960K 48074 0 kqueue 14 22K 28K 166960K 195 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 120 291 0 288 1 0 1 1 0 8 0 rtentry 112 848 0 739 5 1 4 4 0 8 0 unpcb 144 1079 0 1045 4 2 2 2 0 8 0 syncache 336 11 0 11 3 3 0 1 0 8 0 tcpqe 32 7 0 7 1 1 0 1 0 8 0 tcpcb 808 541 0 535 18 10 8 8 0 8 6 arp 120 144 0 125 1 0 1 1 0 8 0 inpcb 384 1903 0 1887 28 19 9 9 0 8 7 nd6 136 210 0 178 2 0 2 2 0 8 0 pkpcb 40 7 0 7 4 3 1 1 0 8 1 kcovpl 48 64 0 56 1 0 1 1 0 8 0 ppxss 1168 3 0 2 2 1 1 1 0 8 0 pffrag 232 22 0 19 1 0 1 1 0 482 0 pffrnode 88 22 0 19 1 0 1 1 0 8 0 pffrent 40 77 0 74 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 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 0 1 0 1 1 0 8 0 pfstitem 24 144 0 109 1 0 1 1 0 8 0 pfstkey 128 144 0 109 2 0 2 2 0 8 0 pfstate 376 144 0 109 8 3 5 6 0 8 0 pfrule 1344 60 0 55 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3079 0 2574 36 4 32 32 0 8 0 art_table 32 3080 0 2574 5 0 5 5 0 8 0 art_node 16 778 0 679 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 143 0 133 1 0 1 1 0 8 0 shmpl 112 89 0 3 3 0 3 3 0 8 0 dirhash 1024 76 0 59 3 0 3 3 0 8 0 dino2pl 256 4329 0 2711 102 0 102 102 0 8 0 ffsino 272 4329 0 2711 109 0 109 109 0 8 0 nchpl 144 6588 0 4819 67 1 66 66 0 8 0 uvmvnodes 80 6066 0 0 124 0 124 124 0 8 0 vnodes 216 6066 0 0 337 0 337 337 0 8 0 namei 1024 28504 0 28504 6 5 1 2 0 8 1 percpumem 16 112 0 64 1 0 1 1 0 8 0 vcpupl 3904 4 0 1 1 0 1 1 0 8 0 vmpool 696 9 0 6 1 0 1 1 0 8 0 kstatmem 264 156 0 128 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 40867 0 40867 15 12 3 8 1 8 3 plimitpl 152 461 0 442 1 0 1 1 0 8 0 sigapl 424 2500 0 2449 9 2 7 7 0 8 0 futexpl 64 25618 0 25612 5 4 1 1 0 8 0 knotepl 120 437 0 0 11 0 11 11 0 8 0 kqueuepl 216 509 0 498 8 6 2 5 0 8 1 pipepl 320 376 0 349 3 0 3 3 0 8 0 fdescpl 496 2479 0 2449 6 1 5 5 0 8 0 filepl 152 14667 0 14385 37 23 14 16 0 8 1 lockfpl 104 712 0 710 2 0 2 2 0 8 1 lockfspl 48 206 0 204 1 0 1 1 0 8 0 sessionpl 144 79 0 70 1 0 1 1 0 8 0 pgrppl 48 159 0 142 1 0 1 1 0 8 0 ucredpl 104 2420 0 2406 1 0 1 1 0 8 0 zombiepl 144 2451 0 2449 2 1 1 1 0 8 0 processpl 1152 2500 0 2449 5 1 4 5 0 8 0 procpl 648 4583 0 4521 8 2 6 7 0 8 0 srpgc 96 6 0 6 3 2 1 1 0 8 1 sosppl 168 16 0 16 3 3 0 1 0 8 0 sockpl 664 3290 0 3238 28 18 10 10 0 8 5 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 252 0 0 30 0 30 30 0 8 0 mtagpl 96 39 0 0 1 0 1 1 0 8 0 mbufpl 256 535 0 0 28 0 28 28 0 8 0 bufpl 280 11549 0 4589 498 0 498 498 0 8 0 anonpl 24 386883 0 383382 88 24 64 79 0 185 29 amapchunkpl 152 62995 0 62516 52 20 32 41 0 158 10 amappl16 200 7589 0 7563 55 52 3 14 0 8 1 amappl15 192 15 0 15 1 1 0 1 0 8 0 amappl14 184 253 0 241 1 0 1 1 0 8 0 amappl13 176 14 0 14 1 1 0 1 0 8 0 amappl12 168 4013 0 3983 4 2 2 3 0 8 0 amappl11 160 59 0 45 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 147 0 146 1 0 1 1 0 8 0 amappl8 136 37 0 34 1 0 1 1 0 8 0 amappl7 128 225 0 213 1 0 1 1 0 8 0 amappl6 120 726 0 724 1 0 1 1 0 8 0 amappl5 112 364 0 353 1 0 1 1 0 8 0 amappl4 104 485 0 466 1 0 1 1 0 8 0 amappl3 96 12596 0 12487 4 0 4 4 0 8 0 amappl2 88 1412 0 1346 2 0 2 2 0 8 0 amappl1 80 17666 0 17087 16 3 13 14 0 8 0 amappl 88 18716 0 18545 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 91 0 3 2 0 2 2 0 8 0 uaddrrnd 24 2488 0 2455 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2488 0 2455 1 0 1 1 0 8 0 vmmpekpl 168 20422 0 20373 4 1 3 3 0 8 0 vmmpepl 168 154949 0 153102 121 34 87 96 0 357 1 vmsppl 440 2487 0 2455 7 2 5 5 0 8 0 rwobjpl 56 49850 0 42755 106 5 101 101 0 8 0 pdppl 4096 4983 0 4913 173 98 75 85 0 8 5 pvpl 32 44951 0 0 362 0 362 362 0 265 0 pmappl 248 2487 0 2455 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 519 0 123 12 0 12 12 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(ffffffff830d879b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8308cc41,ffffffff830a7f75,27f,ffffffff83024d44) at __assert+0x29 vdoom(fffffd8068ca7c28) at vdoom+0x105 sys/kern/vfs_subr.c:641 ufs_inactive(ffff800030b7e178) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89 VOP_INACTIVE(fffffd8068ca7c28,ffff80003579d6f8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vclean(fffffd8068ca7c28,8,ffff80003579d6f8) at vclean+0x234 sys/kern/vfs_subr.c:1107 vgonel(fffffd8068ca7c28,ffff80003579d6f8) at vgonel+0xec sys/kern/vfs_subr.c:1197 vop_generic_revoke(ffff800030b7e308) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105 VOP_REVOKE(fffffd8068ca79a0,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 ptmioctl(5100,40287401,ffff800030b7e7d0,3,ffff80003579d6f8) at ptmioctl+0x832 sys/kern/tty_pty.c:1172 VOP_IOCTL(fffffd806ded10e0,40287401,ffff800030b7e7d0,3,fffffd807f7d3340,ffff80003579d6f8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8061122870,40287401,ffff800030b7e7d0,ffff80003579d6f8) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80003579d6f8,ffff800030b7e9b0,ffff800030b7e900) at sys_ioctl+0x67c syscall(ffff800030b7e9b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800030b7e9b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2fdafe6b1c0, count: -16 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 syscall(ffff80002a0f63d0) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff80002a0f63d0) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c998d7e5b70, count: 9 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 syscall(ffff80002a0f63d0) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff80002a0f63d0) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c998d7e5b70, count: -6