panic: kernel diagnostic assertion "refs != ~0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_synch.c", line 995 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 493543 18053 0 0 0 1 syz-executor *331580 30132 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8345b24e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83408573,ffffffff834086b5,3e3,ffffffff834086fd) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003c4074f0,ffffffff83351539) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:996 pppx_if_destroy(ffff8000343e3000,ffff80003c4074e8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:806 pppxclose(205b9a,1,2000,ffff800039bf3ff8) at pppxclose+0xa0 sys/net/if_pppx.c:553 spec_close(ffff80003c42b200) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806bc96c10,1,fffffd807f7d3270,ffff800039bf3ff8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bb04c30,ffff800039bf3ff8) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd806bb04c30,ffff800039bf3ff8) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff80003c42b460) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42b460) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbf34ac7af50, count: 2 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 "refs != ~0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_synch.c", line 995 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8345b24e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83408573,ffffffff834086b5,3e3,ffffffff834086fd) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003c4074f0,ffffffff83351539) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:996 pppx_if_destroy(ffff8000343e3000,ffff80003c4074e8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:806 pppxclose(205b9a,1,2000,ffff800039bf3ff8) at pppxclose+0xa0 sys/net/if_pppx.c:553 spec_close(ffff80003c42b200) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806bc96c10,1,fffffd807f7d3270,ffff800039bf3ff8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bb04c30,ffff800039bf3ff8) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd806bb04c30,ffff800039bf3ff8) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff80003c42b460) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42b460) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbf34ac7af50, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c42afd0 rbx 0xffffffff838a2dcf cpu_info_full_primary+0x2dcf rdx 0xffff80000147ab80 rcx 0xffff800039bf3ff8 rax 0xffffffff838a1ff0 cpu_info_full_primary+0x1ff0 r8 0 r9 0x8080808080808080 r10 0x38f1b725cc04770c r11 0xad6a0f2751f306d6 r12 0xffffffff838a2bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81b8a7e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c42afc0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=331580 pid=30132 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a3fcab0,0xffffffff83a0cd98 process=0xffff80003c4b7468 user=0xffff80003c426000, vmspace=0xfffffd806bf587a0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16053 299562 67857 0 2 0 syz-executor 16053 310547 67857 0 3 0x4000080 fsleep syz-executor 18053 493543 28354 0 7 0 syz-executor 18053 352800 28354 0 3 0x4000080 ttyin syz-executor 18053 203739 28354 0 3 0x4000080 fsleep syz-executor 59672 155690 71942 0 2 0 syz-executor 59672 509756 71942 0 3 0x4000080 fsleep syz-executor 30132 21386 866 0 2 0 syz-executor 30132 129740 866 0 3 0x4000000 smrbar syz-executor *30132 331580 866 0 7 0x4000000 syz-executor 15719 144550 0 0 3 0x14280 nfsidl nfsio 35966 54092 0 0 3 0x14280 nfsidl nfsio 82685 481821 0 0 3 0x14280 nfsidl nfsio 71240 249736 0 0 3 0x14280 nfsidl nfsio 32428 37027 0 0 3 0x14280 nfsidl nfsio 54412 173594 0 0 3 0x14280 nfsidl nfsio 53526 35307 0 0 3 0x14280 nfsidl nfsio 74156 24786 0 0 3 0x14280 nfsidl nfsio 70371 456387 0 0 3 0x14280 nfsidl nfsio 32308 113570 0 0 3 0x14280 nfsidl nfsio 76135 168717 0 0 3 0x14280 nfsidl nfsio 45986 70216 0 0 3 0x14280 nfsidl nfsio 6911 404652 0 0 3 0x14280 nfsidl nfsio 91019 31179 0 0 3 0x14280 nfsidl nfsio 77718 104218 0 0 3 0x14280 nfsidl nfsio 57178 493926 0 0 3 0x14280 nfsidl nfsio 7225 386958 0 0 3 0x14280 nfsidl nfsio 60991 278991 0 0 3 0x14280 nfsidl nfsio 31853 153615 0 0 3 0x14280 nfsidl nfsio 80858 441294 0 0 3 0x14280 nfsidl nfsio 27838 498577 0 0 3 0x14200 bored sosplice 56536 230040 33320 0 2 0x2 syz-executor 28354 225219 33320 0 2 0xc82 syz-executor 20795 324066 33320 0 2 0x2 syz-executor 67857 269614 33320 0 2 0xc82 syz-executor 71942 463187 33320 0 2 0xc82 syz-executor 97923 264142 33320 0 2 0x2 syz-executor 99468 130529 33320 0 2 0x2 syz-executor 866 340651 33320 0 2 0xc82 syz-executor 33320 518712 4031 0 3 0x82 kqread syz-executor 4031 239739 85950 0 3 0x10008a sigsusp ksh 85950 108137 71763 0 3 0x98 kqread sshd-session 71763 334759 61485 0 3 0x92 kqread sshd-session 88479 430827 1 0 3 0x100083 ttyopn getty 61485 180797 1 0 3 0x88 kqread sshd 90278 112076 53748 74 3 0x1100092 bpf pflogd 53748 278644 1 0 3 0x80 sbwait pflogd 27128 170699 38972 73 3 0x1100090 kqread syslogd 38972 111708 1 0 3 0x100082 sbwait syslogd 89883 456482 1 0 3 0x100080 kqread resolvd 47227 419 63244 77 3 0x100092 kqread dhcpleased 47336 360288 63244 77 3 0x100092 kqread dhcpleased 63244 251802 1 0 3 0x80 kqread dhcpleased 35007 213122 0 0 3 0x14200 bored smr 71081 219921 0 0 2 0x14200 zerothread 35781 256158 0 0 3 0x14200 aiodoned aiodoned 85663 402150 0 0 3 0x14200 syncer update 34403 376422 0 0 3 0x14200 cleaner cleaner 27243 236939 0 0 3 0x14200 reaper reaper 15668 270356 0 0 3 0x14200 pgdaemon pagedaemon 46909 497342 0 0 3 0x14200 bored viomb 92453 12428 0 0 3 0x40014200 acpi0 acpi0 33271 72004 0 0 3 0x40014200 idle1 9688 390403 0 0 3 0x14200 bored softnet3 82983 67015 0 0 3 0x14200 bored softnet2 28561 60965 0 0 3 0x14200 bored softnet1 55362 281962 0 0 3 0x14200 bored softnet0 7107 329114 0 0 3 0x14200 bored systqmp 99710 207988 0 0 3 0x14200 bored systq 94000 193266 0 0 3 0x14200 tmoslp softclockmp 85713 429279 0 0 3 0x40014200 tmoslp softclock 71814 510408 0 0 3 0x40014200 idle0 1 213655 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 30132 (syz-executor) thread 0xffff800039bf3ff8 (331580) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839c4c98) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x126 sys/kern/kern_descrip.c:1265 #3 closef+0x192 sys/kern/kern_descrip.c:1249 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #5 Xsyscall+0x128 Process 20795 (syz-executor) thread 0xffff80002a237558 (324066) exclusive rrwlock inode r = 0 (0xfffffd806dd0c678) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #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:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807a901798) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 97923 (syz-executor) thread 0xffff80002a296008 (264142) exclusive rrwlock inode r = 0 (0xfffffd806b9a5400) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #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:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807a901af8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #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:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 99468 (syz-executor) thread 0xffff80002a2952c0 (130529) exclusive rrwlock inode r = 0 (0xfffffd806b9a5880) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #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:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cef9d30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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:527 #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:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 11295K 11399K 166960K 11877 0 pcb 17 13K 13K 166960K 80 0 rtable 172 7K 8K 166960K 421 0 pf 38 18K 21K 166960K 85 0 ifaddr 36 5K 7K 166960K 66 0 ifgroup 60 2K 2K 166960K 109 0 sysctl 1 1K 2K 166960K 2 0 counters 68 36K 37K 166960K 114 0 ioctlops 0 0K 4K 166960K 1534 0 iov 0 0K 16K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 85K 166960K 1689 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 17 3K 3K 166960K 19 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 85K 166960K 514 0 sigio 1 0K 0K 166960K 8 0 proc 73 91K 116K 166960K 567 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 0 0K 0K 166960K 34 0 in_multi 64 4K 7K 166960K 113 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 424 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 151K 160K 166960K 6580 0 UVM aobj 81 5K 5K 166960K 82 0 pinsyscall 40 80K 100K 166960K 1625 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 13 0K 2K 166960K 43 0 temp 75 8688K 8756K 166960K 19306 0 kqueue 14 22K 28K 166960K 83 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 65 0 62 1 0 1 1 0 8 0 rtentry 176 124 0 53 6 1 5 6 0 8 0 unpcb 144 372 0 355 4 0 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 96 0 92 1 0 1 1 0 8 0 arp 128 21 0 8 1 0 1 1 0 8 0 inpcb 384 487 0 480 8 0 8 8 0 8 7 nd6 144 25 0 9 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 17 0 16 1 0 1 1 0 8 0 pppxif 1504 3 0 2 2 1 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 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfstitem 24 40 0 1 1 0 1 1 0 8 0 pfstkey 128 40 0 1 2 0 2 2 0 8 0 pfstate 384 40 0 1 4 0 4 4 0 8 0 pfrule 1344 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 472 0 183 29 2 27 29 0 8 5 art_table 32 474 0 183 4 0 4 4 0 8 0 art_node 16 122 0 61 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 15 0 0 1 0 1 1 0 8 0 shmpl 112 79 0 1 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2257 0 754 96 0 96 96 0 8 0 ffsino 288 2257 0 754 109 0 109 109 0 8 0 nchpl 144 3047 0 2527 63 0 63 63 0 8 39 rtmask 32 5 0 5 1 0 1 1 0 8 1 uvmvnodes 80 2513 0 0 52 0 52 52 0 8 0 vnodes 216 2513 0 0 140 0 140 140 0 8 0 namei 1024 10108 0 10106 1 0 1 1 0 8 0 percpumem 16 72 0 23 1 0 1 1 0 8 0 kstatmem 264 54 0 28 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 8988 0 8988 3 2 1 2 1 8 1 plimitpl 152 139 0 120 1 0 1 1 0 8 0 sigapl 424 843 0 775 8 0 8 8 0 8 0 futexpl 64 6065 0 6062 1 0 1 1 0 8 0 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 224 135 0 124 2 0 2 2 0 8 1 pipepl 336 157 0 130 5 0 5 5 0 8 2 fdescpl 520 804 0 775 3 0 3 3 0 8 0 filepl 160 4591 0 4372 16 0 16 16 0 8 6 lockfpl 104 253 0 251 2 0 2 2 0 8 1 lockfspl 48 54 0 52 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 731 0 718 1 0 1 1 0 8 0 zombiepl 144 776 0 775 1 0 1 1 0 8 0 processpl 1216 843 0 775 6 0 6 6 0 8 0 procpl 680 1500 0 1426 8 0 8 8 0 8 0 srpgc 96 6 0 6 1 0 1 1 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 728 934 0 907 10 0 10 10 0 8 7 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 106 0 0 14 0 14 14 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 25 0 0 1 0 1 1 0 8 0 mbufpl 256 156 0 0 10 0 10 10 0 8 0 bufpl 280 3064 0 119 211 0 211 211 0 8 0 anonpl 32 5530 0 0 45 0 45 45 0 246 0 amapchunkpl 152 20271 0 19825 25 0 25 25 0 158 5 amappl16 200 2359 0 2330 5 2 3 5 0 8 0 amappl15 192 11 0 11 2 1 1 1 0 8 1 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1458 0 1428 3 1 2 2 0 8 0 amappl11 160 81 0 67 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 265 0 265 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 108 0 96 1 0 1 1 0 8 0 amappl6 120 187 0 184 1 0 1 1 0 8 0 amappl5 112 121 0 111 1 0 1 1 0 8 0 amappl4 104 321 0 301 1 0 1 1 0 8 0 amappl3 96 3824 0 3721 4 0 4 4 0 8 0 amappl2 88 649 0 587 2 0 2 2 0 8 0 amappl1 80 9669 0 9075 14 1 13 14 0 8 0 amappl 88 5807 0 5654 5 0 5 5 0 92 1 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 81 0 1 2 0 2 2 0 8 0 uaddrrnd 24 804 0 775 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 804 0 775 1 0 1 1 0 8 0 vmmpekpl 168 8162 0 8121 3 0 3 3 0 8 0 vmmpepl 168 55501 0 53633 89 0 89 89 0 357 0 vmsppl 480 803 0 775 5 1 4 5 0 8 0 rwobjpl 72 19335 0 15822 65 0 65 65 0 8 0 pdppl 4096 1615 0 1550 101 30 71 81 0 8 6 pvpl 32 13465 0 0 109 0 109 109 0 265 0 pmappl 256 803 0 775 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 392 0 35 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:438 panic(ffffffff8345b24e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83408573,ffffffff834086b5,3e3,ffffffff834086fd) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003c4074f0,ffffffff83351539) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:996 pppx_if_destroy(ffff8000343e3000,ffff80003c4074e8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:806 pppxclose(205b9a,1,2000,ffff800039bf3ff8) at pppxclose+0xa0 sys/net/if_pppx.c:553 spec_close(ffff80003c42b200) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806bc96c10,1,fffffd807f7d3270,ffff800039bf3ff8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bb04c30,ffff800039bf3ff8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bb04c30,ffff800039bf3ff8) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd806bb04c30,ffff800039bf3ff8) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff80003c42b460) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42b460) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbf34ac7af50, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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: 0x79b15a1a0680, count: 12 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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: 0x79b15a1a0680, count: -3