panic: free: size too large 100 > 16 (0xffff800000c434c0) type rtable Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 201817 31137 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834fceb9) at panic+0x1e5 sys/kern/subr_prf.c:198 free(ffff800000c434c0,5,64) at free+0x690 sys/kern/kern_malloc.c:387 rtfree(fffff8006cf52638) at rtfree+0x367 sys/net/route.c:646 rt_ifa_dellocal(ffff800001606e00) at rt_ifa_dellocal+0x211 sys/net/route.c:1452 in_purgeaddr(ffff800001606e00) at in_purgeaddr+0x1c5 sys/netinet/in.c:754 in_ifdetach(ffff800001600000) at in_ifdetach+0x7e sys/netinet/in.c:1015 if_detach(ffff800001600000) at if_detach+0x2fe sys/net/if.c:1311 tun_clone_destroy(ffff800001600000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003abbed40) at if_clone_destroy+0x205 sys/net/if.c:1479 tun_dev_close(5d06,7) at tun_dev_close+0x1d9 sys/net/if_tun.c:526 spec_close(ffff80003abbee00) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffff8006e350460,7,fffff800097fd8f0,ffff80003abb9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 end trace frame: 0xffff80003abbef20, 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: free: size too large 100 > 16 (0xffff800000c434c0) type rtable ddb{1}> show kasan No such command ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834fceb9) at panic+0x1e5 sys/kern/subr_prf.c:198 free(ffff800000c434c0,5,64) at free+0x690 sys/kern/kern_malloc.c:387 rtfree(fffff8006cf52638) at rtfree+0x367 sys/net/route.c:646 rt_ifa_dellocal(ffff800001606e00) at rt_ifa_dellocal+0x211 sys/net/route.c:1452 in_purgeaddr(ffff800001606e00) at in_purgeaddr+0x1c5 sys/netinet/in.c:754 in_ifdetach(ffff800001600000) at in_ifdetach+0x7e sys/netinet/in.c:1015 if_detach(ffff800001600000) at if_detach+0x2fe sys/net/if.c:1311 tun_clone_destroy(ffff800001600000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003abbed40) at if_clone_destroy+0x205 sys/net/if.c:1479 tun_dev_close(5d06,7) at tun_dev_close+0x1d9 sys/net/if_tun.c:526 spec_close(ffff80003abbee00) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffff8006e350460,7,fffff800097fd8f0,ffff80003abb9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffff8006d02e4a0,ffff80003abb9778) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffff8006d02e4a0,ffff80003abb9778) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff80003abb9778) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff80003abb9778,43,0,1) at exit1+0x595 sys/kern/kern_exit.c:215 sys_exit(ffff80003abb9778,ffff80003abbf170,ffff80003abbf0c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003abbf170) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003abbf170) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e2de91663d0, count: -21 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003abbe9b0 rbx 0xffff80002999ee07 rdx 0 rcx 0xffff80003abb9778 rax 0xffff80002999dff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1576953303b795d2 r11 0x4668287c13b9a479 r12 0xffff80002999ec08 r13 0 r14 0 r15 0x1 rip 0xffffffff81af8935 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003abbe9a0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=236493 pid=21606 tcnt=0 stat=onproc flags process=18 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=1 forw=0xffffffffffffffff, list=0xffff800045fee2b0,0xffff80003abb8a90 process=0xffff80002eb7d828 user=0xffff80003abba000, vmspace=0xfffff8006d085d80 estcpu=36, cpticks=3, pctcpu=0.1, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 21520 260143 78535 0 3 0x2 0 clonelk ifconfig 27949 129746 96883 32767 2 0x10 0 syz-executor 27949 57039 96883 32767 3 0x10 0x4000080 kqread syz-executor 27949 472093 96883 32767 3 0x10 0x4000080 fsleep syz-executor 78535 428903 11869 0 3 0x100002 0x88 sigsusp sh 11869 479064 1685 0 3 0 0x80 wait syz-executor 1685 140760 21396 0 3 0x2 0x80 wait syz-executor 31137 290897 59503 32767 2 0x10 0 syz-executor 31137 201817 59503 32767 7 0x10 0x4000000 syz-executor 31137 92126 59503 32767 3 0x10 0x4000080 fsleep syz-executor 1456 238240 25400 0 2 0x100002 0x80 arp 25400 440116 2302 0 3 0x100002 0x88 sigsusp sh 43417 61587 72274 0 2 0x100002 0x80 arp 72274 477219 89869 0 3 0x100002 0x88 sigsusp sh 59503 508237 60255 32767 3 0x10 0x80 nanoslp syz-executor 96883 255112 93720 32767 3 0x10 0x80 nanoslp syz-executor 71209 465084 13040 32767 3 0x10 0 biowait syz-executor 89869 342137 41101 0 3 0 0x80 wait syz-executor 2302 123065 11761 0 3 0 0x80 wait syz-executor 13040 104699 21396 0 3 0x2 0x80 wait syz-executor 69777 207347 21396 0 3 0x2 0x80 wait syz-executor 11761 366249 21396 0 3 0x2 0x80 wait syz-executor 41101 95302 21396 0 3 0x2 0x80 wait syz-executor 93720 367944 21396 0 3 0x2 0x80 wait syz-executor 60255 136479 21396 0 3 0x2 0x80 wait syz-executor 31604 217877 21396 0 3 0x2 0x80 wait syz-executor 21396 134410 61534 0 3 0x2 0x80 kqread syz-executor 61534 491900 10889 0 3 0x100002 0x88 sigsusp ksh 10889 481307 15342 0 3 0x10 0x88 kqread sshd-session 15342 44370 23061 0 3 0x12 0x80 kqread sshd-session 73623 91173 1 0 3 0x100003 0x80 ttyin getty 23061 434049 1 0 3 0 0x88 kqread sshd 69648 310062 49745 73 3 0x1100010 0x80 kqread syslogd 49745 435061 1 0 3 0x100002 0x80 sbwait syslogd 65355 324309 1 0 3 0x100000 0x80 kqread resolvd 96922 51213 75694 77 3 0x100012 0x80 kqread dhcpleased 72139 139536 75694 77 3 0x100012 0x80 kqread dhcpleased 75694 459798 1 0 3 0 0x80 kqread dhcpleased 87026 50199 0 0 3 0x14000 0x200 bored smr 93025 475077 0 0 2 0x14000 0x200 zerothread 38965 134665 0 0 3 0x14000 0x200 aiodoned aiodoned 2442 182795 0 0 3 0x14000 0x200 syncer update 55562 318912 0 0 3 0x14000 0x200 cleaner cleaner 67041 262302 0 0 3 0x14000 0x200 reaper reaper 55484 284514 0 0 3 0x14000 0x200 pgdaemon pagedaemon 3487 375216 0 0 3 0x14000 0x200 bored viomb 6178 180215 0 0 3 0x14000 0x40000200 acpi0 acpi0 83081 324425 0 0 3 0x14000 0x40000200 idle1 54259 374099 0 0 3 0x14000 0x200 bored softnet1 55718 248601 0 0 3 0x14000 0x200 bored softnet0 93686 297301 0 0 3 0x14000 0x200 smrbar systqmp 54886 228169 0 0 3 0x14000 0x200 bored systq 48829 64074 0 0 3 0x14000 0x200 tmoslp softclockmp 93999 245319 0 0 3 0x14000 0x40000200 tmoslp softclock 60399 181686 0 0 3 0x14000 0x40000200 idle0 1 453490 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex /syzkaller/managers/setuid/kernel/sys/kern/kern_malloc.c:96 r = 0 (0xffffffff839b9828) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 free+0x9f sys/kern/kern_malloc.c:393 #3 rtfree+0x367 sys/net/route.c:646 #4 rt_ifa_dellocal+0x211 sys/net/route.c:1452 #5 in_purgeaddr+0x1c5 sys/netinet/in.c:754 #6 in_ifdetach+0x7e sys/netinet/in.c:1015 #7 if_detach+0x2fe sys/net/if.c:1311 #8 tun_clone_destroy+0x2ce sys/net/if_tun.c:343 #9 if_clone_destroy+0x205 sys/net/if.c:1479 #10 tun_dev_close+0x1d9 sys/net/if_tun.c:526 #11 spec_close+0x417 sys/kern/spec_vnops.c:-1 #12 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #13 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] #13 vn_closefile+0x12b sys/kern/vfs_vnops.c:621 #14 fdrop+0x121 sys/kern/kern_descrip.c:1281 #15 closef+0x192 sys/kern/kern_descrip.c:1265 #16 fdfree+0x116 sys/kern/kern_descrip.c:1196 #17 exit1+0x595 sys/kern/kern_exit.c:215 #18 sys_exit+0x1a sys/kern/kern_exit.c:-1 Process 71209 (syz-executor) thread 0xffff800045fee7e0 (465084) exclusive rrwlock inode r = 0 (0xfffff8000fa16c50) #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:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #11 namei+0x7c5 sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff8000fa160c0) #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:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #10 namei+0x7c5 sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 #13 Xsyscall+0x128 Process 93686 (systqmp) thread 0xffff800045ffe298 (297301) shared rwlock systqmp r = 0 (0xffffffff838f02f8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11043 12015K 12034K 166960K 12138 0 pcb 17 12K 12K 166960K 17 0 rtable 180 5K 6K 166960K 306 0 pf 29 16K 16K 166960K 31 0 ifaddr 34 5K 6K 166960K 40 0 ifgroup 46 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 70 0 ioctlops 0 0K 2K 166960K 27 0 iov 0 0K 0K 166960K 65 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1287 81K 81K 166960K 1396 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 5 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 26 97K 129K 166960K 170 0 proc 65 115K 147K 166960K 494 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 8 0 in_multi 68 4K 5K 166960K 80 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 355 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 233 165K 187K 166960K 3046 0 UVM aobj 5 2K 2K 166960K 6 0 pinsyscall 49 98K 118K 166960K 1226 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 17 1K 1K 166960K 23 0 temp 37 9114K 9130K 166960K 3676 0 kqueue 13 20K 24K 166960K 33 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 34 0 28 1 0 1 1 0 8 0 rtentry 176 96 0 14 5 0 5 5 0 8 0 unpcb 144 59 0 42 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 16 0 12 1 0 1 1 0 8 0 arp 136 16 0 2 1 0 1 1 0 8 0 inpcb 328 85 0 76 2 0 2 2 0 8 1 nd6 152 19 0 3 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 385 0 44 25 0 25 25 0 8 1 art_table 40 386 0 44 4 0 4 4 0 8 0 art_node 32 96 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 3 0 0 1 0 1 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1635 0 169 92 0 92 92 0 8 0 ffsino 296 1635 0 169 113 0 113 113 0 8 0 nchpl 144 1870 0 176 63 0 63 63 0 8 0 vnodes 216 1725 0 0 96 0 96 96 0 8 0 namei 1024 5547 0 5547 2 0 2 2 0 8 2 percpumem 16 51 0 1 1 0 1 1 0 8 0 kstatmem 264 25 0 2 2 0 2 2 0 8 0 scxspl 216 6483 0 6482 5 3 2 3 1 8 1 plimitpl 152 40 0 16 1 0 1 1 0 8 0 sigapl 424 457 0 403 7 0 7 7 0 8 0 knotepl 120 289 0 0 9 0 9 9 0 8 0 kqueuepl 224 31 0 21 1 0 1 1 0 8 0 pipepl 344 123 0 96 4 1 3 3 0 8 0 fdescpl 528 441 0 403 4 0 4 4 0 8 0 filepl 160 1751 0 1538 11 0 11 11 0 8 1 lockfpl 104 21 0 18 1 0 1 1 0 8 0 lockfspl 48 12 0 9 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 36 0 12 1 0 1 1 0 8 0 ucredpl 104 221 0 205 1 0 1 1 0 8 0 zombiepl 144 405 0 403 2 1 1 1 0 8 0 processpl 1232 457 0 403 5 0 5 5 0 8 0 procpl 664 527 0 469 7 0 7 7 0 8 1 sockpl 752 178 0 146 4 0 4 4 0 8 0 mcl64k 65536 2 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 127 0 0 16 0 16 16 0 8 0 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mextrefs 64 37 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 302 0 0 19 0 19 19 0 8 0 bufpl 272 2372 0 102 152 0 152 152 0 8 0 anonpl 32 5355 0 0 44 0 44 44 0 247 0 amapchunkpl 152 9127 0 8539 36 1 35 35 0 158 6 amappl16 200 1413 0 1400 5 0 5 5 0 8 3 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 419 0 415 2 1 1 1 0 8 0 amappl13 176 109 0 97 1 0 1 1 0 8 0 amappl12 168 695 0 662 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 60 0 50 1 0 1 1 0 8 0 amappl9 144 270 0 270 2 1 1 1 0 8 1 amappl8 136 107 0 105 1 0 1 1 0 8 0 amappl7 128 140 0 127 1 0 1 1 0 8 0 amappl6 120 164 0 159 2 1 1 1 0 8 0 amappl5 112 92 0 85 1 0 1 1 0 8 0 amappl4 104 260 0 242 1 0 1 1 0 8 0 amappl3 96 1475 0 1381 4 1 3 3 0 8 0 amappl2 88 547 0 473 3 1 2 2 0 8 0 amappl1 80 10071 0 9455 16 1 15 15 0 8 0 amappl 88 2390 0 2232 5 0 5 5 0 92 1 uvmvnodes 80 99 0 0 3 0 3 3 0 8 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 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 441 0 403 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 441 0 403 1 0 1 1 0 8 0 vmmpekpl 168 5492 0 5455 3 0 3 3 0 8 0 vmmpepl 168 37065 0 35079 97 2 95 95 0 357 3 vmsppl 488 440 0 403 7 1 6 6 0 8 0 rwobjpl 80 13698 0 12679 25 1 24 24 0 8 0 pdppl 4096 889 0 806 109 10 99 99 0 8 16 pvpl 32 12485 0 0 101 0 101 101 0 265 0 pmappl 256 440 0 403 4 1 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 435 0 13 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838f8ff0) 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(ffffffff83a5e680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a7746c0,ffff8000002a2900) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 sys/kern/kern_lock.c:173 doopenat(ffff80003abb82b8,ffffff9c,200000000100,40a,0,0,d7da19368b0251c0) at doopenat+0x340 sys/kern/vfs_syscalls.c:1163 sys_open(ffff80003abb82b8,ffff80002a774b20,ffff80002a774a70) at sys_open+0x59 sys/kern/vfs_syscalls.c:1065 syscall(ffff80002a774b20) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a774b20) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9cc14e64990, count: 4 ddb{0}> trace x86_ipi_db(ffffffff838f8ff0) 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(ffffffff83a5e680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a7746c0,ffff8000002a2900) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5e680) at __mp_lock+0x192 sys/kern/kern_lock.c:173 doopenat(ffff80003abb82b8,ffffff9c,200000000100,40a,0,0,d7da19368b0251c0) at doopenat+0x340 sys/kern/vfs_syscalls.c:1163 sys_open(ffff80003abb82b8,ffff80002a774b20,ffff80002a774a70) at sys_open+0x59 sys/kern/vfs_syscalls.c:1065 syscall(ffff80002a774b20) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a774b20) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9cc14e64990, count: -11 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:438 panic(ffffffff834fceb9) at panic+0x1e5 sys/kern/subr_prf.c:198 free(ffff800000c434c0,5,64) at free+0x690 sys/kern/kern_malloc.c:387 rtfree(fffff8006cf52638) at rtfree+0x367 sys/net/route.c:646 rt_ifa_dellocal(ffff800001606e00) at rt_ifa_dellocal+0x211 sys/net/route.c:1452 in_purgeaddr(ffff800001606e00) at in_purgeaddr+0x1c5 sys/netinet/in.c:754 in_ifdetach(ffff800001600000) at in_ifdetach+0x7e sys/netinet/in.c:1015 if_detach(ffff800001600000) at if_detach+0x2fe sys/net/if.c:1311 tun_clone_destroy(ffff800001600000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003abbed40) at if_clone_destroy+0x205 sys/net/if.c:1479 tun_dev_close(5d06,7) at tun_dev_close+0x1d9 sys/net/if_tun.c:526 spec_close(ffff80003abbee00) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffff8006e350460,7,fffff800097fd8f0,ffff80003abb9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 end trace frame: 0xffff80003abbef20, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834fceb9) at panic+0x1e5 sys/kern/subr_prf.c:198 free(ffff800000c434c0,5,64) at free+0x690 sys/kern/kern_malloc.c:387 rtfree(fffff8006cf52638) at rtfree+0x367 sys/net/route.c:646 rt_ifa_dellocal(ffff800001606e00) at rt_ifa_dellocal+0x211 sys/net/route.c:1452 in_purgeaddr(ffff800001606e00) at in_purgeaddr+0x1c5 sys/netinet/in.c:754 in_ifdetach(ffff800001600000) at in_ifdetach+0x7e sys/netinet/in.c:1015 if_detach(ffff800001600000) at if_detach+0x2fe sys/net/if.c:1311 tun_clone_destroy(ffff800001600000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003abbed40) at if_clone_destroy+0x205 sys/net/if.c:1479 tun_dev_close(5d06,7) at tun_dev_close+0x1d9 sys/net/if_tun.c:526 spec_close(ffff80003abbee00) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffff8006e350460,7,fffff800097fd8f0,ffff80003abb9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffff8006d02e4a0,ffff80003abb9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffff8006d02e4a0,ffff80003abb9778) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffff8006d02e4a0,ffff80003abb9778) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff80003abb9778) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff80003abb9778,43,0,1) at exit1+0x595 sys/kern/kern_exit.c:215 sys_exit(ffff80003abb9778,ffff80003abbf170,ffff80003abbf0c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003abbf170) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003abbf170) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e2de91663d0, count: -21