panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 315 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *332960 56500 0 0x2 0 1K ifconfig 403876 6222 77 0x100012 0 0 dhcpleased db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82751deb) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff827cd2be,ffffffff82818b32,13b,ffffffff827e01fc) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000e80800) at tun_clone_destroy+0x278 sys/net/if_tun.c:315 if_clone_destroy(ffff8000247397e0) at if_clone_destroy+0x132 sys/net/if.c:1247 ifioctl(fffffd806f194008,80206979,ffff8000247397e0,ffff80002129c360) at ifioctl+0x3b4 sys/net/if.c:1924 sys_ioctl(ffff80002129c360,ffff8000247398f0,ffff800024739940) at sys_ioctl+0x4a2 syscall(ffff8000247399c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000247399c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffbc80, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 315 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82751deb) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff827cd2be,ffffffff82818b32,13b,ffffffff827e01fc) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000e80800) at tun_clone_destroy+0x278 sys/net/if_tun.c:315 if_clone_destroy(ffff8000247397e0) at if_clone_destroy+0x132 sys/net/if.c:1247 ifioctl(fffffd806f194008,80206979,ffff8000247397e0,ffff80002129c360) at ifioctl+0x3b4 sys/net/if.c:1924 sys_ioctl(ffff80002129c360,ffff8000247398f0,ffff800024739940) at sys_ioctl+0x4a2 syscall(ffff8000247399c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000247399c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffbc80, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800024739590 rbx 0xffff800020d69b8f rdx 0 rcx 0 rax 0xffff80002129c360 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9f8682df4df932c2 r11 0x2ec9924c2d42d9ce r12 0xffff800020d69990 r13 0 r14 0 r15 0x1 rip 0xffffffff81b420b8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800024739580 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (ifconfig) pid=332960 stat=onproc flags process=2 proc=0 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff80002129d668,0xffffffff82ca0df8 process=0xffff8000273710e8 user=0xffff800024734000, vmspace=0xfffffd8069625008 estcpu=31, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *56500 332960 2391 0 7 0x2 ifconfig 2391 385374 22829 0 3 0x10008a sigsusp sh 22829 428785 34665 0 3 0x82 wait syz-executor.0 44072 237500 34665 0 3 0x82 piperd syz-executor.7 53314 228062 34665 0 3 0x82 nanoslp syz-executor.2 41428 433573 34665 0 3 0x82 piperd syz-executor.5 52197 453013 34665 0 3 0x82 piperd syz-executor.6 43925 417276 34665 0 3 0x82 piperd syz-executor.3 42707 419964 34665 0 3 0x82 piperd syz-executor.4 13893 131694 0 0 3 0x14200 acct acct 18316 499219 34665 0 3 0x82 piperd syz-executor.1 74636 308250 0 0 3 0x14280 nfsidl nfsio 80251 319874 0 0 3 0x14280 nfsidl nfsio 16735 129667 0 0 3 0x14280 nfsidl nfsio 28668 99179 0 0 3 0x14280 nfsidl nfsio 42603 261517 0 0 3 0x14280 nfsidl nfsio 54771 418787 0 0 3 0x14280 nfsidl nfsio 15194 212817 0 0 3 0x14280 nfsidl nfsio 79630 76422 0 0 3 0x14280 nfsidl nfsio 12800 249372 0 0 3 0x14280 nfsidl nfsio 39686 45377 0 0 3 0x14280 nfsidl nfsio 4312 423929 0 0 3 0x14280 nfsidl nfsio 71424 36935 0 0 3 0x14280 nfsidl nfsio 16094 499810 0 0 3 0x14280 nfsidl nfsio 83267 85543 0 0 3 0x14280 nfsidl nfsio 70097 21340 0 0 3 0x14280 nfsidl nfsio 43428 337572 0 0 3 0x14280 nfsidl nfsio 40529 303733 0 0 3 0x14280 nfsidl nfsio 72476 319131 0 0 3 0x14280 nfsidl nfsio 36557 305338 0 0 3 0x14280 nfsidl nfsio 99657 366734 0 0 3 0x14280 nfsidl nfsio 87226 146259 0 0 3 0x14200 bored sosplice 34665 467811 23465 0 3 0x82 thrsleep syz-fuzzer 34665 365614 23465 0 3 0x4000082 nanoslp syz-fuzzer 34665 16387 23465 0 3 0x4000082 wait syz-fuzzer 34665 203203 23465 0 3 0x4000082 thrsleep syz-fuzzer 34665 157614 23465 0 3 0x4000082 wait syz-fuzzer 34665 175722 23465 0 3 0x4000082 thrsleep syz-fuzzer 34665 29061 23465 0 3 0x4000082 thrsleep syz-fuzzer 34665 228103 23465 0 3 0x4000082 thrsleep syz-fuzzer 34665 480166 23465 0 3 0x4000082 wait syz-fuzzer 34665 413051 23465 0 3 0x4000082 wait syz-fuzzer 34665 58748 23465 0 3 0x4000082 thrsleep syz-fuzzer 34665 143190 23465 0 3 0x4000082 wait syz-fuzzer 34665 438670 23465 0 3 0x4000082 wait syz-fuzzer 34665 444010 23465 0 3 0x4000082 wait syz-fuzzer 34665 237288 23465 0 3 0x4000082 wait syz-fuzzer 34665 139670 23465 0 3 0x4000082 kqread syz-fuzzer 23465 461096 4477 0 3 0x10008a sigsusp ksh 4477 310928 21470 0 3 0x9a kqread sshd 34183 493265 1 0 3 0x100083 ttyopn getty 21470 40595 1 0 3 0x88 kqread sshd 85728 217443 80784 74 3 0x1100092 bpf pflogd 80784 71840 1 0 3 0x80 netio pflogd 42783 430007 38133 73 3 0x1100090 kqread syslogd 38133 240258 1 0 3 0x100082 netio syslogd 87682 478834 1 0 3 0x100080 kqread resolvd 6222 403876 986 77 7 0x100012 dhcpleased 62681 478908 986 77 3 0x100092 kqread dhcpleased 986 80371 1 0 3 0x80 kqread dhcpleased 54478 411096 0 0 3 0x14200 bored smr 24420 27063 0 0 3 0x14200 pgzero zerothread 46982 81039 0 0 3 0x14200 aiodoned aiodoned 68350 116522 0 0 3 0x14200 syncer update 39151 377034 0 0 3 0x14200 cleaner cleaner 99691 191842 0 0 3 0x14200 reaper reaper 78438 229524 0 0 3 0x14200 pgdaemon pagedaemon 23215 248009 0 0 3 0x14200 bored viomb 65008 96642 0 0 3 0x40014200 acpi0 acpi0 47188 193042 0 0 3 0x40014200 idle1 62859 410080 0 0 3 0x14200 bored softnet 84053 133093 0 0 3 0x14200 bored softnet 60372 329037 0 0 3 0x14200 bored softnet 80141 193326 0 0 3 0x14200 bored softnet 13310 291558 0 0 3 0x14200 bored systqmp 2100 515373 0 0 3 0x14200 bored systq 70662 139448 0 0 3 0x40014200 bored softclock 28056 222352 0 0 3 0x40014200 idle0 1 401862 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10230 6513K 7070K 78643K 21998 0 pcb 13 18K 23K 78643K 858 0 rtable 169 15K 17K 78643K 1907 0 ifaddr 75 26K 30K 78643K 834 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 830 0 ioctlops 0 0K 4K 78643K 2099 0 iov 0 0K 36K 78643K 1322 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1520 95K 95K 78643K 6394 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 46 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2203 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 89K 78643K 7855 0 sigio 0 0K 0K 78643K 94 0 proc 83 104K 116K 78643K 1646 0 subproc 104 6K 6K 78643K 494 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 403 0 in_multi 66 4K 7K 78643K 628 0 ether_multi 1 0K 0K 78643K 67 0 mrt 1 0K 0K 78643K 53 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 181 811K 811K 78643K 181 0 exec 0 0K 1K 78643K 1575 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 364 94K 107K 78643K 55494 0 UVM aobj 131 8K 8K 78643K 145 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 402 0 NDP 13 0K 1K 78643K 276 0 temp 133 5778K 71440K 78643K 83362 0 kqueue 12 18K 26K 78643K 620 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 693 0 690 12 11 1 3 0 8 0 rtentry 112 556 0 487 4 1 3 4 0 8 0 unpcb 144 5337 0 5322 64 63 1 8 0 8 0 syncache 296 30 0 30 9 9 0 1 0 8 0 tcpqe 32 494 0 494 6 6 0 1 0 8 0 tcpcb 776 2030 0 2026 77 76 1 14 0 8 0 arp 120 81 0 70 1 0 1 1 0 8 0 inpcb 368 6532 0 6524 124 120 4 14 0 8 3 nd6 48 127 0 110 1 0 1 1 0 8 0 pkpcb 40 11 0 11 3 2 1 1 0 8 1 kcovpl 48 38 0 30 1 0 1 1 0 8 0 mppekey 1024 12 0 12 5 5 0 1 0 8 0 ppxss 1256 287 0 287 14 13 1 1 0 8 1 pppxif 1456 91 0 91 8 8 0 1 0 8 0 pfstscr 40 22 0 22 5 5 0 1 0 8 0 pffrag 232 94 0 92 1 0 1 1 0 482 0 pffrnode 88 92 0 90 1 0 1 1 0 8 0 pffrent 40 477 0 475 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 pfanchor 1280 540 0 273 32 8 24 28 0 8 0 pfstitem 24 26 0 24 1 0 1 1 0 8 0 pfstkey 128 50 0 46 1 0 1 1 0 8 0 pfstate 384 32 0 30 2 1 1 2 0 8 0 pfrule 1344 21 0 20 2 1 1 2 0 8 0 rttmr 136 9 0 9 4 4 0 1 0 8 0 art_heap8 4096 6 0 5 4 3 1 2 0 8 0 art_heap4 256 2461 0 2138 42 17 25 30 0 8 0 art_table 32 2467 0 2143 4 0 4 4 0 8 0 art_node 16 544 0 485 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 1 0 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 2201 0 2191 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11650 0 10195 92 0 92 92 0 8 0 ffsino 272 11650 0 10195 98 0 98 98 0 8 0 nchpl 144 22484 0 20839 63 0 63 63 0 8 0 rtmask 32 4 0 4 2 1 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 83569 0 83569 4 3 1 2 0 8 1 percpumem 16 428 0 387 1 0 1 1 0 8 0 vmpool 696 55 0 55 8 7 1 1 0 8 1 kstatmem 264 384 0 358 4 1 3 3 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 69581 0 69581 25 24 1 8 0 8 1 plimitpl 152 1091 0 1075 1 0 1 1 0 8 0 sigapl 424 8127 0 8062 11 3 8 8 0 8 0 futexpl 64 71300 0 71300 4 3 1 1 0 8 1 knotepl 120 834 0 0 17 0 17 17 0 8 0 kqueuepl 216 1396 0 1388 23 22 1 5 0 8 0 pipepl 320 2237 0 2209 60 57 3 13 0 8 0 fdescpl 496 8087 0 8061 6 2 4 5 0 8 0 filepl 152 58378 0 58138 107 92 15 26 0 8 5 lockfpl 104 2053 0 2051 3 2 1 2 0 8 0 lockfspl 48 859 0 857 1 0 1 1 0 8 0 sessionpl 144 54 0 37 1 0 1 1 0 8 0 pgrppl 48 262 0 245 1 0 1 1 0 8 0 ucredpl 104 5993 0 5981 1 0 1 1 0 8 0 zombiepl 144 8063 0 8062 2 1 1 1 0 8 0 processpl 1072 8127 0 8062 6 1 5 5 0 8 0 procpl 696 22046 0 21966 22 12 10 10 0 8 0 srpgc 96 37 0 37 13 13 0 1 0 8 0 sosppl 168 68 0 68 12 12 0 1 0 8 0 sockpl 488 12579 0 12553 320 311 9 40 0 8 5 mcl64k 65536 20 0 0 3 1 2 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 492 0 0 54 11 43 54 0 8 0 mtagpl 96 378 0 0 6 0 6 6 0 8 0 mbufpl 256 1475 0 0 69 0 69 69 0 8 0 bufpl 288 15263 0 8938 453 1 452 453 0 8 0 anonpl 24 1670275 0 1654532 259 130 129 148 0 186 0 amapchunkpl 152 156618 0 155877 78 40 38 49 0 158 0 amappl16 200 15492 0 14945 135 105 30 43 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 287 0 268 2 0 2 2 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 778 0 771 1 0 1 1 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 69 0 56 1 0 1 1 0 8 0 amappl9 144 1014 0 1012 1 0 1 1 0 8 0 amappl8 136 490 0 393 4 0 4 4 0 8 0 amappl7 128 249 0 220 2 0 2 2 0 8 0 amappl6 120 366 0 347 2 1 1 2 0 8 0 amappl5 112 341 0 329 1 0 1 1 0 8 0 amappl4 104 945 0 900 5 3 2 2 0 8 0 amappl3 96 23787 0 23740 2 0 2 2 0 8 0 amappl2 88 8851 0 8771 3 1 2 3 0 8 0 amappl1 80 187187 0 186469 28 10 18 28 0 8 0 amappl 88 54448 0 54245 6 0 6 6 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 72 144 0 14 3 0 3 3 0 8 0 uaddrrnd 24 8143 0 8117 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8143 0 8117 1 0 1 1 0 8 0 vmmpekpl 168 66474 0 66407 4 0 4 4 0 8 0 vmmpepl 168 752089 0 749428 276 121 155 168 0 357 9 vmsppl 440 8142 0 8117 7 3 4 5 0 8 0 rwobjpl 56 203983 0 196137 136 22 114 115 0 8 0 pdppl 4096 16293 0 16234 485 416 69 81 0 8 10 pvpl 32 3293866 0 3272673 518 294 224 343 0 265 0 pmappl 248 8142 0 8117 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1464 0 594 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82b24ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82db6020) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x12e sys/kern/kern_lock.c:147 syscall(ffff800021209cf0) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021209cf0) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4700, count: 6 ddb{0}> trace x86_ipi_db(ffffffff82b24ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82db6020) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x12e sys/kern/kern_lock.c:147 syscall(ffff800021209cf0) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021209cf0) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4700, count: -9 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:437 panic(ffffffff82751deb) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff827cd2be,ffffffff82818b32,13b,ffffffff827e01fc) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000e80800) at tun_clone_destroy+0x278 sys/net/if_tun.c:315 if_clone_destroy(ffff8000247397e0) at if_clone_destroy+0x132 sys/net/if.c:1247 ifioctl(fffffd806f194008,80206979,ffff8000247397e0,ffff80002129c360) at ifioctl+0x3b4 sys/net/if.c:1924 sys_ioctl(ffff80002129c360,ffff8000247398f0,ffff800024739940) at sys_ioctl+0x4a2 syscall(ffff8000247399c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000247399c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffbc80, count: 6 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82751deb) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff827cd2be,ffffffff82818b32,13b,ffffffff827e01fc) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000e80800) at tun_clone_destroy+0x278 sys/net/if_tun.c:315 if_clone_destroy(ffff8000247397e0) at if_clone_destroy+0x132 sys/net/if.c:1247 ifioctl(fffffd806f194008,80206979,ffff8000247397e0,ffff80002129c360) at ifioctl+0x3b4 sys/net/if.c:1924 sys_ioctl(ffff80002129c360,ffff8000247398f0,ffff800024739940) at sys_ioctl+0x4a2 syscall(ffff8000247399c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000247399c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffbc80, count: -9