login: kernel: protection fault trap, code=0 Stopped at bpfdetach+0x70: movq 0(%r15),%r12 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace bpfdetach(ffff800001478800) at bpfdetach+0x70 sys/net/bpf.c:1770 if_detach(ffff800001478800) at if_detach+0x1bb sys/net/if.c:1226 tun_clone_destroy(ffff800001478800) at tun_clone_destroy+0x2ce sys/net/if_tun.c:340 if_clone_destroy(ffff80003c439630) at if_clone_destroy+0x1d5 sys/net/if.c:1415 ifioctl(ffff800010fd8ec0,80206979,ffff80003c439630,ffff80003c42b258) at ifioctl+0x59d sys/net/if.c:2092 fifo_ioctl(ffff80003c439478) at fifo_ioctl+0x8e sys/miscfs/fifofs/fifo_vnops.c:308 VOP_IOCTL(fffffd80586c4b00,80206979,ffff80003c439630,3,fffffd80097fb820,ffff80003c42b258) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8064e4cc28,80206979,ffff80003c439630,ffff80003c42b258) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c42b258,ffff80003c439810,ffff80003c439760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c439810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c439810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x92b21f6c1f0, count: -11 ddb{1}> show registers rdi 0xffff800033be7000 rsi 0x147ea acpi_pdirpa+0x65b rbp 0xffff80003c4391b0 rbx 0x80206979 __kernel_virt_to_phys+0x206979 rdx 0xffff800033be7000 rcx 0x147e9 acpi_pdirpa+0x65a rax 0xffffffff82490179 bpfdetach+0xb9 r8 0x30 r9 0x1 r10 0x2a2fc3cdd050270e r11 0x3ebcd19b4994c44e r12 0xdeaf0002deaf4152 r13 0xffff800001478e00 r14 0xffff800001478800 r15 0xdeaf0002deaf4152 rip 0xffffffff82490130 bpfdetach+0x70 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c439180 ss 0x10 bpfdetach+0x70: movq 0(%r15),%r12 ddb{1}> show proc PROC (syz-executor) tid=342162 pid=82163 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c42ad28,0xffff80003c42c038 process=0xffff8000fffee1c8 user=0xffff80003c434000, vmspace=0xfffffd805f4a0d80 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34912 366324 11510 0 2 0 syz-executor 34912 288328 11510 0 2 0x4000000 syz-executor 34912 225524 11510 0 3 0x4000080 fsleep syz-executor 34912 133373 11510 0 3 0x4000080 fsleep syz-executor 99178 202201 92173 0 2 0 syz-executor 99178 324790 92173 0 2 0x4000000 syz-executor 82163 343202 78945 0 3 0x80 nanoslp syz-executor *82163 342162 78945 0 7 0x4000000 syz-executor 82163 71150 78945 0 3 0x4000080 fsleep syz-executor 78945 9957 93735 0 3 0x82 nanoslp syz-executor 73650 47097 11253 0 3 0x3000 suspend syz-executor 73650 502270 11253 0 3 0x4081000 biowait syz-executor 46934 295465 17871 0 4 0x82000 syz-executor 46934 153440 17871 0 3 0x4082000 biowait syz-executor 46934 212682 17871 0 4 0x4082000 syz-executor 46934 289211 17871 0 3 0x4002000 suspend syz-executor 46934 477126 17871 0 4 0x4082000 syz-executor 66298 313396 1 0 3 0x100083 ttyin getty 92173 117616 93735 0 3 0x82 nanoslp syz-executor 41886 53973 93735 0 3 0x82 wait syz-executor 33875 419367 0 0 3 0x14200 acct acct 11510 399719 93735 0 3 0x82 nanoslp syz-executor 88211 161137 0 0 3 0x14280 nfsidl nfsio 83408 144259 0 0 3 0x14200 bored sosplice 12419 399219 93735 0 3 0x82 wait syz-executor 17871 15869 93735 0 3 0x82 nanoslp syz-executor 11253 51125 93735 0 3 0x82 nanoslp syz-executor 3173 322239 93735 0 3 0x82 nanoslp syz-executor 93735 132648 79812 0 3 0x82 kqread syz-executor 79812 133787 33674 0 3 0x10008a sigsusp ksh 33674 435696 98516 0 3 0x98 kqread sshd-session 98516 422226 58547 0 3 0x92 kqread sshd-session 58547 122630 1 0 3 0x88 kqread sshd 91168 331390 96712 74 3 0x1100092 bpf pflogd 96712 278123 1 0 3 0x80 sbwait pflogd 84542 446289 45977 73 3 0x1100090 kqread syslogd 45977 111413 1 0 3 0x100082 sbwait syslogd 12573 62748 1 0 3 0x100080 kqread resolvd 4642 128781 14577 77 3 0x100092 kqread dhcpleased 6239 490788 14577 77 2 0x100092 dhcpleased 14577 154038 1 0 3 0x80 kqread dhcpleased 93634 108067 0 0 3 0x14200 bored smr 69877 255482 0 0 3 0x14200 pgzero zerothread 66311 349035 0 0 3 0x14200 aiodoned aiodoned 41310 146754 0 0 3 0x14200 syncer update 39653 472295 0 0 3 0x14200 cleaner cleaner 3812 5375 0 0 3 0x14200 reaper reaper 96883 26725 0 0 3 0x14200 pgdaemon pagedaemon 1916 252009 0 0 3 0x14200 bored viomb 7853 424058 0 0 3 0x40014200 acpi0 acpi0 78086 80014 0 0 3 0x40014200 idle1 83356 435995 0 0 3 0x14200 bored softnet1 75802 522522 0 0 3 0x14200 tqbarend softnet0 57998 520619 0 0 3 0x14200 bored systqmp 26447 248530 0 0 3 0x14200 bored systq 19428 231905 0 0 3 0x14200 tmoslp softclockmp 46681 280419 0 0 3 0x40014200 tmoslp softclock 93701 274348 0 0 3 0x40014200 idle0 1 128161 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 82163 (syz-executor) thread 0xffff80003c42b258 (342162) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff83905e08) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 rw_do_enter_write+0x1dc sys/kern/kern_rwlock.c:298 #4 lf_purgelocks+0x2f sys/kern/vfs_lockf.c:731 #5 vgonel+0x47e sys/kern/vfs_subr.c:1217 #6 vop_generic_revoke+0x3ea sys/kern/vfs_default.c:124 #7 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #8 vdevgone+0x17b sys/kern/vfs_subr.c:-1 #9 bpfsdetach+0x155 sys/net/bpf.c:1794 #10 bpfdetach+0xa6 sys/net/bpf.c:-1 #11 if_detach+0x1bb sys/net/if.c:1226 #12 tun_clone_destroy+0x2ce sys/net/if_tun.c:340 #13 if_clone_destroy+0x1d5 sys/net/if.c:1415 #14 ifioctl+0x59d sys/net/if.c:2092 #15 fifo_ioctl+0x8e sys/miscfs/fifofs/fifo_vnops.c:308 #16 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #17 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #18 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 exclusive rwlock clonelk r = 0 (0xffffffff837aac28) #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+0x67 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2092 #4 fifo_ioctl+0x8e sys/miscfs/fifofs/fifo_vnops.c:308 #5 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #6 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #7 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 73650 (syz-executor) thread 0xffff80003c42d4e8 (502270) exclusive rrwlock inode r = 0 (0xfffffd806e083c40) #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+0xa3 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:748 #9 Xsyscall+0x128 Process 46934 (syz-executor) thread 0xffff80003c42bcb8 (153440) exclusive rrwlock inode r = 0 (0xfffffd8073518dd0) #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+0xa3 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:748 #9 Xsyscall+0x128 Process 75802 (softnet0) thread 0xffff8000ffffe298 (522522) shared rwlock softnet0 r = 0 (0xffff80000002c078) #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 10226 11174K 11802K 166960K 12853 0 pcb 20 14K 16K 166960K 420 0 rtable 205 10K 10K 166960K 701 0 pf 38 18K 81K 166960K 156 0 ifaddr 40 7K 7K 166960K 109 0 ifgroup 57 2K 2K 166960K 170 0 sysctl 4 1K 9K 166960K 19 0 counters 72 37K 37K 166960K 418 0 ioctlops 1 1K 4K 166960K 1950 0 iov 0 0K 16K 166960K 56 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1486 93K 94K 166960K 2788 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 620K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 35 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 1274 0 sigio 0 0K 0K 166960K 33 0 proc 72 115K 164K 166960K 778 0 subproc 72 4K 4K 166960K 118 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 159 0 in_multi 79 5K 7K 166960K 221 0 ether_multi 1 0K 0K 166960K 22 0 mrt 1 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 645 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 276 161K 178K 166960K 13816 0 UVM aobj 19 4K 4K 166960K 19 0 pinsyscall 43 86K 106K 166960K 2546 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 91 0 NDP 15 0K 2K 166960K 73 0 temp 76 8656K 8912K 166960K 49485 0 kqueue 14 22K 32K 166960K 240 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 202 0 199 3 2 1 3 0 8 0 rtentry 176 227 0 146 7 1 6 6 0 8 0 unpcb 144 611 0 592 4 2 2 3 0 8 1 syncache 336 7 0 7 3 2 1 1 0 8 1 tcpqe 32 4 0 4 1 0 1 1 0 8 1 tcpcb 736 360 0 351 5 3 2 4 0 8 0 arp 136 31 0 15 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 1521 0 1506 18 8 10 10 0 8 8 nd6 152 44 0 24 1 0 1 1 0 8 0 pkpcb 40 13 0 13 1 1 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 158 0 154 3 2 1 1 0 8 0 pppxif 1504 132 0 132 2 2 0 1 0 8 0 pfstscr 40 77 0 76 3 2 1 1 0 8 0 pffrag 232 10 0 1 1 0 1 1 0 482 0 pffrnode 88 9 0 1 1 0 1 1 0 8 0 pffrent 40 82 0 70 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 2 0 2 2 2 0 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 62 0 29 1 0 1 1 0 8 0 pfstkey 128 204 0 171 2 0 2 2 0 8 0 pfstate 384 132 0 101 5 1 4 5 0 8 0 pfrule 1344 30 0 24 2 1 1 2 0 8 0 rttmr 136 5 0 5 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 908 0 566 32 8 24 31 0 8 2 art_table 40 910 0 566 5 0 5 5 0 8 0 art_node 32 193 0 123 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 6 4 3 1 1 0 8 0 semapl 112 30 0 20 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 3928 0 2413 96 0 96 96 0 8 0 ffsino 296 3928 0 2413 117 0 117 117 0 8 0 nchpl 144 5618 0 3894 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 vnodes 216 4721 0 0 263 0 263 263 0 8 0 namei 1024 20028 0 20028 4 3 1 2 0 8 1 percpumem 16 225 0 173 1 0 1 1 0 8 0 kstatmem 264 98 0 67 4 1 3 3 0 8 0 scsiplug 72 6 0 6 3 2 1 1 0 8 1 scxspl 216 48984 0 48982 11 9 2 8 1 8 1 plimitpl 152 311 0 290 1 0 1 1 0 8 0 sigapl 424 1590 0 1539 9 1 8 8 0 8 1 knotepl 120 422 0 0 13 0 13 13 0 8 0 kqueuepl 224 434 0 422 4 2 2 3 0 8 1 pipepl 344 358 0 330 9 3 6 9 0 8 3 fdescpl 528 1550 0 1518 3 0 3 3 0 8 0 filepl 160 10795 0 10553 24 7 17 20 0 8 4 lockfpl 104 444 0 441 1 0 1 1 0 8 0 lockfspl 48 151 0 148 1 0 1 1 0 8 0 sessionpl 144 34 0 25 1 0 1 1 0 8 0 pgrppl 48 58 0 41 1 0 1 1 0 8 0 ucredpl 104 2254 0 2240 1 0 1 1 0 8 0 zombiepl 144 2220 0 2216 1 0 1 1 0 8 0 processpl 1232 1590 0 1539 6 0 6 6 0 8 0 procpl 664 3562 0 3500 8 0 8 8 0 8 1 sosppl 168 6 0 6 2 1 1 1 0 8 1 sockpl 752 2377 0 2340 23 9 14 14 0 8 9 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 44 0 0 5 0 5 5 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 904 0 0 57 0 57 57 0 8 0 bufpl 280 23114 0 16977 439 0 439 439 0 8 0 anonpl 32 15759 0 0 127 0 127 127 0 246 0 amapchunkpl 152 45940 0 45114 52 20 32 33 0 158 0 amappl16 200 7628 0 7349 40 23 17 33 0 8 2 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 5 0 5 1 1 0 1 0 8 0 amappl13 176 487 0 485 1 0 1 1 0 8 0 amappl12 168 1974 0 1931 3 0 3 3 0 8 0 amappl11 160 23 0 23 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 268 0 268 1 1 0 1 0 8 0 amappl8 136 45 0 42 1 0 1 1 0 8 0 amappl7 128 106 0 104 1 0 1 1 0 8 0 amappl6 120 351 0 336 1 0 1 1 0 8 0 amappl5 112 81 0 70 1 0 1 1 0 8 0 amappl4 104 467 0 437 1 0 1 1 0 8 0 amappl3 96 7965 0 7858 4 1 3 3 0 8 0 amappl2 88 1672 0 1594 2 0 2 2 0 8 0 amappl1 80 14894 0 14300 16 2 14 15 0 8 0 amappl 88 12764 0 12565 5 0 5 5 0 92 0 uvmvnodes 80 4721 0 0 97 0 97 97 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 2 2 0 1 0 8 0 dma128 128 255 0 255 3 2 1 1 0 8 1 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 18 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1550 0 1518 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1550 0 1518 1 0 1 1 0 8 0 vmmpekpl 168 14873 0 14829 3 0 3 3 0 8 0 vmmpepl 168 107316 0 105061 117 15 102 114 0 357 3 vmsppl 488 1549 0 1518 6 1 5 5 0 8 0 rwobjpl 80 37510 0 31552 123 1 122 122 0 8 0 pdppl 4096 3108 0 3036 116 42 74 86 0 8 2 pvpl 32 26600 0 0 217 2 215 215 0 265 0 pmappl 256 1549 0 1518 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 348 0 62 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff837ecff0) 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(ffffffff83905c00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83905c00) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a3c58d0,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83905c00) at __mp_lock+0x19e __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83905c00) at __mp_lock+0x19e sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff83905c00,2) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:367 msleep_nsec(ffff80000002c070,ffff80000002c018,20,ffffffff83414d85,ffffffffffffffff) at msleep_nsec+0x132 sys/kern/kern_synch.c:219 taskq_do_barrier(ffff80000002c000) at taskq_do_barrier+0x15f sys/kern/kern_task.c:304 ifq_destroy(ffff800001493ab0) at ifq_destroy+0x106 sys/net/ifq.c:352 if_detach(ffff800001493800) at if_detach+0x6c6 sys/net/if.c:-1 pppacclose(637d,9,2000,ffff80003c42b788) at pppacclose+0x118 sys/net/if_pppx.c:1329 spec_close(ffff80002a3c5d20) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80586c47a0,9,fffffd80097fb820,ffff80003c42b788) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8061288ee0,ffff80003c42b788) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8061288ee0,ffff80003c42b788) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8061288ee0,ffff80003c42b788) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8061288ee0,ffff80003c42b788) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c42b788) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c42b788,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c42b788,ffff80002a3c6090,ffff80002a3c5fe0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3c6090) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3c6090) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7267d223ecf0, count: -24 ddb{0}> machine ddbcpu 1 Stopped at bpfdetach+0x70: movq 0(%r15),%r12 ddb{1}> trace bpfdetach(ffff800001478800) at bpfdetach+0x70 sys/net/bpf.c:1770 if_detach(ffff800001478800) at if_detach+0x1bb sys/net/if.c:1226 tun_clone_destroy(ffff800001478800) at tun_clone_destroy+0x2ce sys/net/if_tun.c:340 if_clone_destroy(ffff80003c439630) at if_clone_destroy+0x1d5 sys/net/if.c:1415 ifioctl(ffff800010fd8ec0,80206979,ffff80003c439630,ffff80003c42b258) at ifioctl+0x59d sys/net/if.c:2092 fifo_ioctl(ffff80003c439478) at fifo_ioctl+0x8e sys/miscfs/fifofs/fifo_vnops.c:308 VOP_IOCTL(fffffd80586c4b00,80206979,ffff80003c439630,3,fffffd80097fb820,ffff80003c42b258) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8064e4cc28,80206979,ffff80003c439630,ffff80003c42b258) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c42b258,ffff80003c439810,ffff80003c439760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c439810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c439810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x92b21f6c1f0, count: -11