panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 323 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 29700 55908 0 0x2 0 0K ifconfig 334317 15978 77 0x100012 0x1 1 dhcpleased db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b3cba) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f16f8,ffffffff8343bb39,143,ffffffff8332cd04) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff8000015a2000) at tun_clone_destroy+0x38a if_clone_destroy(ffff800034fd9eb0) at if_clone_destroy+0x205 sys/net/if.c:1478 ifioctl(ffff80000161a680,80206979,ffff800034fd9eb0,ffff8000fffe9260) at ifioctl+0x59d sys/net/if.c:2159 sys_ioctl(ffff8000fffe9260,ffff800034fda090,ffff800034fd9fe0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800034fda090) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800034fda090) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d834ba62130, count: 6 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 "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 323 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b3cba) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f16f8,ffffffff8343bb39,143,ffffffff8332cd04) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff8000015a2000) at tun_clone_destroy+0x38a if_clone_destroy(ffff800034fd9eb0) at if_clone_destroy+0x205 sys/net/if.c:1478 ifioctl(ffff80000161a680,80206979,ffff800034fd9eb0,ffff8000fffe9260) at ifioctl+0x59d sys/net/if.c:2159 sys_ioctl(ffff8000fffe9260,ffff800034fda090,ffff800034fd9fe0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800034fda090) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800034fda090) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d834ba62130, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800034fd9c60 rbx 0xffffffff837d7e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff8000fffe9260 rax 0xffffffff837d6ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa7efd45d258b492a r11 0xbbb8f78ed5e2bc00 r12 0xffffffff837d7c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff82de7905 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800034fd9c50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (ifconfig) tid=29700 pid=55908 tcnt=1 stat=onproc flags process=2 proc=0 runpri=57, usrpri=57, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe9790,0xffffffff83932170 process=0xffff8000fffe5d10 user=0xffff800034fd5000, vmspace=0xfffffd806eadf5c8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *55908 29700 88229 0 7 0x2 ifconfig 88229 29253 72019 0 3 0x10008a sigsusp sh 72019 257553 37477 0 3 0x82 wait syz-executor 97240 310681 50689 0 2 0 syz-executor 97240 425480 50689 0 2 0x4000000 syz-executor 50980 122422 54171 0 2 0 syz-executor 50980 507255 54171 0 3 0x4000080 sbwait syz-executor 6190 403611 4574 0 3 0x3000 suspend syz-executor 6190 214237 4574 0 2 0x4081000 syz-executor 6190 41764 4574 0 3 0x4081000 inode syz-executor 16440 358077 33385 0 2 0 syz-executor 16440 193476 33385 0 3 0x4000080 fifor syz-executor 16440 442727 33385 0 3 0x4000080 kqread syz-executor 72196 308377 54039 0 3 0x3000 suspend syz-executor 72196 484022 54039 0 3 0x4081000 inode syz-executor 72196 430671 54039 0 2 0x4081000 syz-executor 72196 172922 54039 0 3 0x4081000 inode syz-executor 14910 68352 0 0 3 0x14200 acct acct 26430 209613 1 0 3 0x100083 ttyin getty 33385 240894 37477 0 2 0xc82 syz-executor 74719 182483 0 0 3 0x14280 nfsidl nfsio 88315 364447 0 0 3 0x14280 nfsidl nfsio 99989 341684 0 0 3 0x14280 nfsidl nfsio 95874 113465 0 0 3 0x14280 nfsidl nfsio 37405 192648 0 0 3 0x14280 nfsidl nfsio 45893 55303 0 0 3 0x14280 nfsidl nfsio 90890 97633 0 0 3 0x14280 nfsidl nfsio 24028 125241 0 0 3 0x14280 nfsidl nfsio 16508 96646 0 0 3 0x14280 nfsidl nfsio 24759 461893 0 0 3 0x14280 nfsidl nfsio 3969 148214 0 0 3 0x14280 nfsidl nfsio 8271 155407 0 0 3 0x14280 nfsidl nfsio 64701 126778 0 0 3 0x14280 nfsidl nfsio 30069 260977 0 0 3 0x14280 nfsidl nfsio 32649 268677 0 0 3 0x14280 nfsidl nfsio 17682 354923 0 0 3 0x14280 nfsidl nfsio 29418 146074 0 0 3 0x14280 nfsidl nfsio 89145 249249 0 0 3 0x14280 nfsidl nfsio 9216 291257 0 0 3 0x14280 nfsidl nfsio 5121 314434 0 0 3 0x14280 nfsidl nfsio 17792 88040 37477 0 2 0xc82 syz-executor 54171 141687 37477 0 2 0x2 syz-executor 54039 32222 37477 0 3 0x82 wait syz-executor 13956 386269 37477 0 3 0x82 piperd syz-executor 50689 122039 37477 0 2 0xc82 syz-executor 4574 73597 37477 0 2 0x2 syz-executor 37477 181968 47847 0 2 0x2 syz-executor 47847 80878 29915 0 3 0x10008a sigsusp ksh 29915 183819 82192 0 3 0x98 kqread sshd-session 82192 233994 84413 0 3 0x92 kqread sshd-session 84413 350052 1 0 3 0x88 kqread sshd 57288 416906 55540 74 3 0x1100092 bpf pflogd 55540 198519 1 0 3 0x80 sbwait pflogd 59466 107102 50100 73 3 0x1100090 kqread syslogd 50100 75394 1 0 3 0x100082 sbwait syslogd 26720 515485 1 0 3 0x100080 kqread resolvd 15978 334317 96706 77 7 0x100013 dhcpleased 48714 103334 96706 77 3 0x100092 kqread dhcpleased 96706 309730 1 0 3 0x80 kqread dhcpleased 76122 504841 0 0 3 0x14200 bored smr 18147 194199 0 0 2 0x14200 zerothread 56323 371166 0 0 3 0x14200 aiodoned aiodoned 66457 340670 0 0 3 0x14200 syncer update 88884 333171 0 0 3 0x14200 cleaner cleaner 67195 152267 0 0 3 0x14200 reaper reaper 81911 61675 0 0 3 0x14200 pgdaemon pagedaemon 40583 487117 0 0 3 0x14200 bored viomb 87085 204288 0 0 3 0x40014200 acpi0 acpi0 69890 340602 0 0 3 0x40014200 idle1 19031 54255 0 0 3 0x14200 bored softnet1 541 27236 0 0 3 0x14200 bored softnet0 62860 67972 0 0 3 0x14200 bored systqmp 12152 136914 0 0 3 0x14200 bored systq 37059 238463 0 0 3 0x14200 tmoslp softclockmp 77736 25008 0 0 3 0x40014200 tmoslp softclock 69344 247355 0 0 3 0x40014200 idle0 1 374541 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 55908 (ifconfig) thread 0xffff8000fffe9260 (29700) exclusive rwlock clonelk r = 0 (0xffffffff8384c4b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 if_clone_destroy+0x93 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2159 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83953e48) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ifioctl+0x58c sys/net/if.c:2159 #2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #4 Xsyscall+0x128 Process 97240 (syz-executor) thread 0xffff8000fffe94f8 (425480) exclusive rrwlock inode r = 0 (0xfffffd806b2d7a20) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 6190 (syz-executor) thread 0xffff8000ffffcf98 (214237) exclusive rrwlock inode r = 0 (0xfffffd806b2d7458) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 72196 (syz-executor) thread 0xffff8000fffe9a28 (430671) exclusive rrwlock inode r = 0 (0xfffffd806dbc4d78) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 72196 (syz-executor) thread 0xffff8000fffe8fc8 (172922) exclusive rrwlock inode r = 0 (0xfffffd806dbc4c50) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dorenameat+0x91 sys/kern/vfs_syscalls.c:2990 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11067 12113K 12409K 166960K 12748 0 pcb 17 19K 21K 166960K 199 0 rtable 174 7K 9K 166960K 476 0 pf 30 16K 18K 166960K 59 0 ifaddr 28 4K 7K 166960K 62 0 ifgroup 45 2K 2K 166960K 79 0 sysctl 3 1K 9K 166960K 9 0 counters 68 36K 37K 166960K 96 0 ioctlops 0 0K 4K 166960K 1584 0 iov 0 0K 16K 166960K 79 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 85K 166960K 1844 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 24 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 94K 240K 166960K 821 0 sigio 0 0K 0K 166960K 41 0 proc 79 131K 180K 166960K 676 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 136 0 in_multi 54 3K 7K 166960K 130 0 ether_multi 1 0K 0K 166960K 7 0 mrt 1 0K 0K 166960K 14 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 694 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 257 169K 182K 166960K 9120 0 UVM aobj 20 3K 5K 166960K 22 0 pinsyscall 43 86K 102K 166960K 1993 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 53 0 NDP 10 0K 2K 166960K 40 0 temp 59 8674K 8767K 166960K 31196 0 kqueue 15 24K 30K 166960K 151 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 80 0 77 1 0 1 1 0 8 0 rtentry 176 136 0 66 6 0 6 6 0 8 1 unpcb 144 351 0 331 3 1 2 2 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 256 0 249 13 9 4 13 0 8 3 arp 136 22 0 11 1 0 1 1 0 8 0 inpcb 328 974 0 963 16 12 4 12 0 8 3 nd6 152 31 0 16 1 0 1 1 0 8 0 pkpcb 40 37 0 37 3 3 0 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1192 11 0 9 2 1 1 1 0 8 0 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 5 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 8 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 1 1 0 1 1 0 8 1 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 611 0 334 31 4 27 31 0 8 5 art_table 40 614 0 334 6 1 5 6 0 8 0 art_node 32 136 0 72 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 3 1 0 1 1 0 8 0 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2839 0 1327 96 0 96 96 0 8 0 ffsino 296 2839 0 1327 118 0 118 118 0 8 0 nchpl 144 3980 0 2270 64 0 64 64 0 8 0 rtmask 32 3 0 2 1 0 1 1 0 8 0 vnodes 216 3140 0 0 175 0 175 175 0 8 0 namei 1024 13371 0 13370 2 1 1 2 0 8 0 percpumem 16 63 0 14 1 0 1 1 0 8 0 vmpool 848 1 0 1 1 0 1 1 0 8 1 kstatmem 264 46 0 24 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 26111 0 26111 10 7 3 8 1 8 3 plimitpl 152 134 0 114 1 0 1 1 0 8 0 sigapl 424 1133 0 1064 9 1 8 8 0 8 0 knotepl 120 787 0 0 24 0 24 24 0 8 0 kqueuepl 224 229 0 216 2 0 2 2 0 8 0 pipepl 344 188 0 161 3 0 3 3 0 8 0 fdescpl 528 1091 0 1059 3 0 3 3 0 8 0 filepl 160 6187 0 5967 18 7 11 16 0 8 0 lockfpl 104 265 0 263 1 0 1 1 0 8 0 lockfspl 48 115 0 113 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 949 0 935 1 0 1 1 0 8 0 zombiepl 144 1191 0 1188 3 2 1 1 0 8 0 processpl 1232 1133 0 1064 7 1 6 6 0 8 0 procpl 664 2267 0 2189 8 0 8 8 0 8 0 sosppl 176 3 0 3 2 2 0 1 0 8 0 sockpl 752 1459 0 1425 21 15 6 16 0 8 1 mcl64k 65536 5 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 1 15 16 0 8 0 mcl2k 2048 41 0 0 6 0 6 6 0 8 0 mtagpl 96 36 0 0 1 0 1 1 0 8 0 mbufpl 256 203 0 0 13 0 13 13 0 8 0 bufpl 280 10568 0 4432 439 0 439 439 0 8 0 anonpl 32 10653 0 0 86 0 86 86 0 246 0 amapchunkpl 152 30249 0 29667 43 11 32 33 0 158 6 amappl16 200 4757 0 4432 42 22 20 25 0 8 1 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 8 0 7 1 0 1 1 0 8 0 amappl13 176 482 0 480 1 0 1 1 0 8 0 amappl12 168 1477 0 1435 3 0 3 3 0 8 0 amappl11 160 11 0 11 1 1 0 1 0 8 0 amappl10 152 59 0 45 1 0 1 1 0 8 0 amappl9 144 257 0 256 2 1 1 1 0 8 0 amappl8 136 39 0 36 1 0 1 1 0 8 0 amappl7 128 89 0 87 1 0 1 1 0 8 0 amappl6 120 303 0 288 1 0 1 1 0 8 0 amappl5 112 82 0 70 1 0 1 1 0 8 0 amappl4 104 452 0 422 1 0 1 1 0 8 0 amappl3 96 5181 0 5082 4 1 3 3 0 8 0 amappl2 88 1209 0 1132 2 0 2 2 0 8 0 amappl1 80 11906 0 11312 14 1 13 14 0 8 0 amappl 88 8218 0 8040 5 0 5 5 0 92 0 uvmvnodes 80 135 0 0 3 0 3 3 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1091 0 1059 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1091 0 1059 1 0 1 1 0 8 0 vmmpekpl 168 10293 0 10243 3 0 3 3 0 8 0 vmmpepl 168 76762 0 74532 121 17 104 105 0 357 0 vmsppl 488 1090 0 1059 6 2 4 5 0 8 0 rwobjpl 80 23727 0 22313 37 6 31 31 0 8 0 pdppl 4096 2192 0 2120 110 36 74 84 0 8 2 pvpl 32 19127 0 0 155 0 155 155 0 265 0 pmappl 256 1091 0 1060 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 305 0 57 8 0 8 8 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(ffffffff833b3cba) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f16f8,ffffffff8343bb39,143,ffffffff8332cd04) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff8000015a2000) at tun_clone_destroy+0x38a if_clone_destroy(ffff800034fd9eb0) at if_clone_destroy+0x205 sys/net/if.c:1478 ifioctl(ffff80000161a680,80206979,ffff800034fd9eb0,ffff8000fffe9260) at ifioctl+0x59d sys/net/if.c:2159 sys_ioctl(ffff8000fffe9260,ffff800034fda090,ffff800034fd9fe0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800034fda090) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800034fda090) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d834ba62130, count: -9 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 __mp_lock(ffffffff83953c40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83953c40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 ktrstruct(ffff80002a2634d0,ffffffff833d8387,ffff80002a2822a0,20) at ktrstruct+0xdf sys/kern/kern_ktrace.c:313 sys_kevent(ffff80002a2634d0,ffff80002a282620,ffff80002a282570) at sys_kevent+0x7bf sys/kern/kern_event.c:1327 syscall(ffff80002a282620) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a282620) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x708832fc8470, count: 7 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 __mp_lock(ffffffff83953c40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83953c40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 ktrstruct(ffff80002a2634d0,ffffffff833d8387,ffff80002a2822a0,20) at ktrstruct+0xdf sys/kern/kern_ktrace.c:313 sys_kevent(ffff80002a2634d0,ffff80002a282620,ffff80002a282570) at sys_kevent+0x7bf sys/kern/kern_event.c:1327 syscall(ffff80002a282620) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a282620) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x708832fc8470, count: -8