login: panic: pool_do_get: mbufpl free list modified: page 0xfffffd806f267000; item addr 0xfffffd806f267400; offset 0x0=0x0 != 0x68bbf492c613de8 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 143180 52435 77 0x100010 0x80 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249168b) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828be8a8,2,ffff800020edbd98) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828be8a8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684320,fffffd806f6843a8,ffffffff82557600,fffffd806f267b00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684320,fffffd806f267b00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806f267b00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd806f4d3460,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rtdeletemsg(fffffd806f4d3460,ffff800000ac6000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2d00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in_purgeaddr(ffff800000aa2d00) at in_purgeaddr+0x132 sys/netinet/in.c:756 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1142 end trace frame: 0xffff800020edc400, 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 pool_do_get: mbufpl free list modified: page 0xfffffd806f267000; item addr 0xfffffd806f267400; offset 0x0=0x0 != 0x68bbf492c613de8 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249168b) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828be8a8,2,ffff800020edbd98) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828be8a8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684320,fffffd806f6843a8,ffffffff82557600,fffffd806f267b00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684320,fffffd806f267b00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806f267b00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd806f4d3460,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rtdeletemsg(fffffd806f4d3460,ffff800000ac6000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2d00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in_purgeaddr(ffff800000aa2d00) at in_purgeaddr+0x132 sys/netinet/in.c:756 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1142 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020edc4e0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e79d008,7,fffffd807f7bf7e0,ffff800020ddc008) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806cf30568,ffff800020ddc008) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806cf30568,ffff800020ddc008) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806cf30568,ffff800020ddc008) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806cf30568,ffff800020ddc008) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddc008) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddc008,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddc008,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddc008,9) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddc008) at userret+0x199 sys/kern/kern_sig.c:1872 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe6b00, count: -26 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020edbbe0 rbx 0xffff800020edbc90 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff81e9c95f kprintf+0x16f r9 0x1 r10 0x2 r11 0x7ca413c293aaa887 r12 0x3000000008 r13 0xffff800020edbbf0 r14 0x100 r15 0x1 rip 0xffffffff815638a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020edbbd0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=451163 stat=onproc flags process=a proc=2000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffffffff828b4398 process=0xffff800020df07d0 user=0xffff800020ed7000, vmspace=0xfffffd807f000b80 estcpu=0, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4953 66221 29437 0 3 0x82 thrsleep syz-execprog 4953 11742 29437 0 3 0x4000082 thrsleep syz-execprog 4953 409670 29437 0 3 0x4000082 thrsleep syz-execprog 4953 146050 29437 0 3 0x4000082 thrsleep syz-execprog 4953 294155 29437 0 3 0x4000082 wait syz-execprog 4953 95127 29437 0 3 0x4000082 thrsleep syz-execprog 4953 204698 29437 0 3 0x4000082 thrsleep syz-execprog 4953 464280 29437 0 3 0x4000082 kqread syz-execprog 4953 479892 29437 0 3 0x4000082 thrsleep syz-execprog 29437 517995 40272 0 3 0x10008a pause ksh 40272 140472 45920 0 3 0x92 select sshd 12431 324466 1 0 3 0x100083 ttyin getty 45920 41356 1 0 3 0x80 select sshd 65360 230713 61141 74 3 0x100092 bpf pflogd 61141 510261 1 0 3 0x80 netio pflogd 59133 292814 5875 73 3 0x100090 kqread syslogd 5875 459796 1 0 3 0x100082 netio syslogd 52435 143180 1 77 7 0x100090 dhclient 87039 275228 1 0 3 0x80 poll dhclient 99498 470149 0 0 3 0x14200 bored smr 10209 82860 0 0 3 0x14200 pgzero zerothread 38066 150480 0 0 3 0x14200 aiodoned aiodoned 15382 145895 0 0 3 0x14200 syncer update 7399 24795 0 0 3 0x14200 cleaner cleaner 75293 163287 0 0 3 0x14200 reaper reaper 13597 152354 0 0 3 0x14200 pgdaemon pagedaemon 33724 189914 0 0 3 0x14200 bored crynlk 66435 353124 0 0 3 0x14200 bored crypto 79732 115034 0 0 3 0x40014200 acpi0 acpi0 49899 83502 0 0 3 0x40014200 idle1 24826 228927 0 0 3 0x14200 bored softnet 82398 172051 0 0 2 0x14200 systqmp 55808 488077 0 0 3 0x14200 bored systq 47230 393991 0 0 3 0x40014200 bored softclock 91635 375380 0 0 3 0x40014200 idle0 1 258413 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex mbufpl r = 0 (0xffffffff828be8b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbf sys/kern/subr_pool.c:578 #4 m_get+0x4c sys/kern/uipc_mbuf.c:250 #5 sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 #6 rtm_sendup+0xef sys/net/rtsock.c:594 #7 route_input+0x489 sys/net/rtsock.c:572 #8 rtm_send+0x18d sys/net/rtsock.c:1659 #9 rtdeletemsg+0x199 sys/net/route.c:682 #10 rt_ifa_purge+0x104 sys/net/route.c:1320 #11 in_purgeaddr+0x132 sys/netinet/in.c:756 #12 in_ifdetach+0x74 sys/netinet/in.c:971 #13 if_detach+0x140 sys/net/if.c:1142 #14 tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 #15 tun_dev_close+0x160 sys/net/if_tun.c:480 #16 spec_close+0x311 sys/kern/spec_vnops.c:560 #17 VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 #18 vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] #18 vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9465 6396K 6396K 78643K 10560 0 pcb 13 8K 8K 78643K 13 0 rtable 77 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 39 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 2 4K 12K 78643K 18 0 proc 59 63K 83K 78643K 398 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 197 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 73 12K 12K 78643K 949 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 7 0 temp 29 3853K 3917K 78643K 1873 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 4 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 296 34 0 28 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 11 0 0 1 0 1 1 0 8 0 pfstkey 112 11 0 0 1 0 1 1 0 8 0 pfstate 328 11 0 0 1 0 1 1 0 8 0 pfrule 1360 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 256 144 0 2 9 0 9 9 0 8 0 art_table 32 145 0 2 2 0 2 2 0 8 0 art_node 16 33 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1424 0 22 88 0 88 88 0 8 0 ffsino 272 1424 0 22 94 0 94 94 0 8 0 nchpl 144 1643 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1434 0 0 27 0 27 27 0 8 0 vnodes 208 1434 0 0 76 0 76 76 0 8 0 namei 1024 4231 0 4231 2 1 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 4347 0 4347 2 1 1 2 0 8 1 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 424 241 0 212 4 0 4 4 0 8 0 knotepl 112 47 0 38 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 304 77 0 71 1 0 1 1 0 8 0 fdescpl 496 226 0 212 3 0 3 3 0 8 0 filepl 152 1117 0 1061 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 213 0 212 2 1 1 1 0 8 0 processpl 992 241 0 212 5 0 5 5 0 8 1 procpl 624 249 0 212 4 0 4 4 0 8 1 sockpl 400 80 0 62 2 0 2 2 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 79 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 109 0 0 7 1 6 7 0 8 0 mbufpl: pool(0xffffffff828be8a8:mbufpl): free list modified: page 0xfffffd806f267000; item ordinal 0; addr 0xfffffd806f267400 (p 0xfffffd806f2dc000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd806f267000; item ordinal 0; addr 0xfffffd806f267400 (p 0xfffffd806f2dc000); offset 0x0=0x0 mbufpl: pool(0xffffffff828be8a8:mbufpl): page inconsistency: page 0xfffffd806f267000; item ordinal 1; addr 0x4947b2b8787ba156 bufpl 280 3050 0 133 209 0 209 209 0 8 0 anonpl 16 22232 0 20592 14 2 12 12 0 124 3 amapchunkpl 152 852 0 786 5 0 5 5 0 158 1 amappl16 192 141 0 108 2 0 2 2 0 8 0 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 30 0 26 1 0 1 1 0 8 0 amappl13 168 24 0 21 2 1 1 1 0 8 0 amappl12 160 4 0 4 2 1 1 1 0 8 1 amappl11 152 48 0 33 1 0 1 1 0 8 0 amappl10 144 21 0 16 1 0 1 1 0 8 0 amappl9 136 235 0 233 1 0 1 1 0 8 0 amappl8 128 279 0 270 1 0 1 1 0 8 0 amappl7 120 113 0 103 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 120 0 106 1 0 1 1 0 8 0 amappl4 96 503 0 475 1 0 1 1 0 8 0 amappl3 88 106 0 101 1 0 1 1 0 8 0 amappl2 80 901 0 845 2 0 2 2 0 8 0 amappl1 72 15569 0 15153 23 5 18 18 0 8 8 amappl 80 476 0 448 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 226 0 212 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 226 0 212 1 0 1 1 0 8 0 vmmpekpl 168 6411 0 6383 2 0 2 2 0 8 0 vmmpepl 168 33060 0 32125 81 8 73 73 0 357 30 vmsppl 368 225 0 212 2 0 2 2 0 8 0 pdppl 4096 459 0 424 6 0 6 6 0 8 1 pvpl 32 113947 0 109925 105 1 104 104 0 265 69 pmappl 232 225 0 212 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 234 0 5 7 0 7 7 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82783ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82925f10) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82925f10) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82925f10,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e182e0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e182e0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e182e0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff8290c2b4,118,ffffffff824640a7,41dfad) at tsleep+0x1cc sys/kern/kern_synch.c:155 doppoll(ffff800020ddc9c8,7f7fffff1210,3,ffff800020e18478,0,ffff800020e18530) at doppoll+0x57e sys/kern/sys_generic.c:968 sys_poll(ffff800020ddc9c8,ffff800020e184e0,ffff800020e18530) at sys_poll+0xa6 syscall(ffff800020e185b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e185b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff11f0, count: 2 ddb{0}> trace x86_ipi_db(ffffffff82783ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82925f10) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82925f10) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82925f10,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e182e0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e182e0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e182e0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff8290c2b4,118,ffffffff824640a7,41dfad) at tsleep+0x1cc sys/kern/kern_synch.c:155 doppoll(ffff800020ddc9c8,7f7fffff1210,3,ffff800020e18478,0,ffff800020e18530) at doppoll+0x57e sys/kern/sys_generic.c:968 sys_poll(ffff800020ddc9c8,ffff800020e184e0,ffff800020e18530) at sys_poll+0xa6 syscall(ffff800020e185b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e185b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff11f0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249168b) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828be8a8,2,ffff800020edbd98) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828be8a8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684320,fffffd806f6843a8,ffffffff82557600,fffffd806f267b00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684320,fffffd806f267b00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806f267b00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd806f4d3460,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rtdeletemsg(fffffd806f4d3460,ffff800000ac6000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2d00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in_purgeaddr(ffff800000aa2d00) at in_purgeaddr+0x132 sys/netinet/in.c:756 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1142 end trace frame: 0xffff800020edc400, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249168b) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828be8a8,2,ffff800020edbd98) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828be8a8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684320,fffffd806f6843a8,ffffffff82557600,fffffd806f267b00,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684320,fffffd806f267b00,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd806f267b00,0,2) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd806f4d3460,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rtdeletemsg(fffffd806f4d3460,ffff800000ac6000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2d00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in_purgeaddr(ffff800000aa2d00) at in_purgeaddr+0x132 sys/netinet/in.c:756 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1142 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020edc4e0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e79d008,7,fffffd807f7bf7e0,ffff800020ddc008) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806cf30568,ffff800020ddc008) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806cf30568,ffff800020ddc008) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806cf30568,ffff800020ddc008) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806cf30568,ffff800020ddc008) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddc008) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddc008,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddc008,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddc008,9) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddc008) at userret+0x199 sys/kern/kern_sig.c:1872 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe6b00, count: -26 ddb{1}>