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(ffff80000158f000) at bpfdetach+0x70 sys/net/bpf.c:1770 if_detach(ffff80000158f000) at if_detach+0x12b sys/net/if.c:1289 tun_clone_destroy(ffff80000158f000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003c3d0e50) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000016265f8,80206979,ffff80003c3d0e50,ffff80002f793a18) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff80002f793a18,ffff80003c3d1030,ffff80003c3d0f80) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3d1030) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d1030) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb049bfba0e0, count: -8 ddb{1}> show registers rdi 0xffff800032f9e000 rsi 0x18ee3 acpi_pdirpa+0x4d54 rbp 0xffff80003c3d0c70 rbx 0x80206979 __kernel_virt_to_phys+0x206979 rdx 0xffff800032f9e000 rcx 0x18ee2 acpi_pdirpa+0x4d53 rax 0xffffffff82962559 bpfdetach+0xb9 r8 0xffffffffffffffff r9 0x1 r10 0 r11 0x99d5199f678f5795 r12 0xdead0002dead4110 r13 0xffff80000158f648 r14 0xffff80000158f000 r15 0xdead0002dead4110 rip 0xffffffff82962510 bpfdetach+0x70 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c3d0c40 ss 0x10 bpfdetach+0x70: movq 0(%r15),%r12 ddb{1}> show proc PROC (syz-executor) tid=104144 pid=50584 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f7922c0,0xffff80002f793790 process=0xffff80002a37e698 user=0xffff80003c3cc000, vmspace=0xfffff0806b3c23f8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 62764 356397 62381 0 2 0x1 syz-executor 62764 358244 62381 0 3 0x4000080 fsleep syz-executor 62764 46761 62381 0 3 0x4000080 fsleep syz-executor 2542 202942 80466 0 2 0 syz-executor 2542 327514 80466 0 3 0x4000080 sbwait syz-executor 50584 24477 68963 0 2 0x1 syz-executor 50584 90860 68963 0 2 0x4000001 syz-executor *50584 104144 68963 0 7 0x4000000 syz-executor 50584 271424 68963 0 3 0x4000000 biowait syz-executor 96153 328839 28180 0 3 0x80 nanoslp syz-executor 96153 232462 28180 0 3 0x4000080 kqread syz-executor 96153 366198 28180 0 3 0x4000080 fsleep syz-executor 67692 240417 84173 0 3 0x80 nanoslp syz-executor 67692 432385 84173 0 3 0x4000080 kqread syz-executor 83716 368163 37543 0 3 0x3000 suspend syz-executor 83716 77367 37543 0 2 0x4081080 syz-executor 83716 417805 37543 0 2 0x4081080 syz-executor 68963 383773 60497 0 3 0x82 nanoslp syz-executor 28180 439260 60497 0 3 0x82 nanoslp syz-executor 62381 327985 60497 0 3 0x82 nanoslp syz-executor 84173 268994 60497 0 3 0x82 nanoslp syz-executor 13333 479588 60497 0 3 0x82 nanoslp syz-executor 18033 250705 60497 0 2 0x3 syz-executor 80466 126457 60497 0 3 0x82 nanoslp syz-executor 37543 518172 60497 0 3 0x82 nanoslp syz-executor 60497 148144 4380 0 3 0x82 kqread syz-executor 4380 299616 83444 0 3 0x10008a sigsusp ksh 83444 397251 26430 0 3 0x98 kqread sshd-session 26430 335072 14254 0 3 0x92 kqread sshd-session 74604 149563 1 0 3 0x100083 ttyopn getty 14254 306132 1 0 3 0x88 kqread sshd 14899 240337 53415 74 3 0x1100092 bpf pflogd 53415 66727 1 0 3 0x80 sbwait pflogd 49410 129164 67414 73 3 0x1100090 kqread syslogd 67414 120644 1 0 3 0x100082 sbwait syslogd 8321 170914 1 0 3 0x100080 kqread resolvd 87000 262080 88556 77 2 0x100012 dhcpleased 5071 387856 88556 77 3 0x100092 kqread dhcpleased 88556 498007 1 0 3 0x80 kqread dhcpleased 98465 370719 0 0 3 0x14200 bored smr 46308 390274 0 0 3 0x14200 pgzero zerothread 27728 223427 0 0 3 0x14200 aiodoned aiodoned 29523 413906 0 0 3 0x14200 syncer update 56439 391005 0 0 3 0x14200 cleaner cleaner 38408 4197 0 0 3 0x14200 reaper reaper 13535 29432 0 0 3 0x14200 pgdaemon pagedaemon 24301 322585 0 0 3 0x14200 bored viomb 73605 158452 0 0 3 0x40014200 acpi0 acpi0 37251 385289 0 0 3 0x40014200 idle1 81791 428375 0 0 3 0x14200 bored softnet1 80628 155536 0 0 2 0x14200 softnet0 49264 52477 0 0 3 0x14200 smrbar systqmp 3004 400876 0 0 3 0x14200 bored systq 5195 86978 0 0 3 0x14200 tmoslp softclockmp 13889 302301 0 0 3 0x40014200 tmoslp softclock 60079 40378 0 0 3 0x40014200 idle0 1 12627 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 2542 (syz-executor) thread 0xffff8000fffef240 (327514) exclusive rrwlock inode r = 0 (0xfffff0806fb411e0) #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:686 #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 vn_open+0x178 sys/kern/vfs_vnops.c:146 #12 vndioctl+0xc43 sys/dev/vnd.c:458 #13 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #14 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #15 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #16 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #16 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #17 Xsyscall+0x128 Process 50584 (syz-executor) thread 0xffff80002f793a18 (104144) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83b13a80) #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:369 #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:1216 #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+0x12b sys/net/if.c:1289 #12 tun_clone_destroy+0x2ce sys/net/if_tun.c:343 #13 if_clone_destroy+0x205 sys/net/if.c:1479 #14 ifioctl+0x59d sys/net/if.c:2160 #15 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #16 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #16 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #17 Xsyscall+0x128 exclusive rwlock clonelk r = 0 (0xffffffff838e3498) #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:2160 #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:783 #6 Xsyscall+0x128 Process 50584 (syz-executor) thread 0xffff8000fffee548 (271424) exclusive rrwlock inode r = 0 (0xfffff0806b3ae8e0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3062 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff0806ee18dc8) #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 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3047 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 80628 (softnet0) thread 0xffff8000ffffe298 (155536) 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 Process 49264 (systqmp) thread 0xffff8000ffffe000 (52477) shared rwlock systqmp r = 0 (0xffffffff839c7d98) #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 11113 12293K 12491K 166960K 12415 0 pcb 17 12K 12K 166960K 57 0 rtable 253 8K 9K 166960K 422 0 pf 37 18K 24K 166960K 135 0 ifaddr 44 7K 8K 166960K 67 0 ifgroup 57 2K 3K 166960K 100 0 sysctl 3 1K 9K 166960K 7 0 counters 72 37K 38K 166960K 238 0 ioctlops 0 0K 4K 166960K 1586 0 iov 0 0K 17K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1306 82K 82K 166960K 1513 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 13 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 332 0 proc 72 115K 196K 166960K 595 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 36 0 in_multi 99 7K 7K 166960K 118 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 405 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 247 171K 185K 166960K 4873 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 42 84K 106K 166960K 1524 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 15 0K 2K 166960K 44 0 temp 45 9116K 9191K 166960K 15063 0 kqueue 15 24K 32K 166960K 72 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 49 0 46 1 0 1 1 0 8 0 rtentry 176 128 0 16 6 0 6 6 0 8 0 unpcb 144 202 0 178 4 0 4 4 0 8 3 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 63 0 57 2 1 1 2 0 8 0 arp 136 20 0 2 1 0 1 1 0 8 0 inpcb 328 296 0 287 7 0 7 7 0 8 5 nd6 152 29 0 4 2 0 2 2 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 77 0 76 2 1 1 1 0 8 0 pppxif 1576 3 0 3 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 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 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 14 0 9 2 1 1 1 0 8 0 pfstitem 24 21 0 1 1 0 1 1 0 8 0 pfstkey 128 23 0 3 1 0 1 1 0 8 0 pfstate 448 22 0 2 3 0 3 3 0 8 0 pfrule 1360 29 0 23 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 518 0 54 30 0 30 30 0 8 1 art_table 40 520 0 54 5 0 5 5 0 8 0 art_node 32 128 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semapl 72 9 0 3 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1891 0 417 94 1 93 93 0 8 0 ffsino 296 1891 0 417 114 0 114 114 0 8 0 nchpl 144 2340 0 624 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 vnodes 216 2077 0 0 116 0 116 116 0 8 0 namei 1024 7587 0 7586 1 0 1 1 0 8 0 percpumem 16 134 0 83 1 0 1 1 0 8 0 kstatmem 264 55 0 26 4 1 3 3 0 8 1 scxspl 216 7843 0 7841 4 3 1 3 1 8 0 plimitpl 152 56 0 37 1 0 1 1 0 8 0 sigapl 424 649 0 601 7 1 6 7 0 8 0 knotepl 120 593 0 0 18 0 18 18 0 8 0 kqueuepl 224 80 0 69 2 0 2 2 0 8 1 pipepl 344 143 0 116 3 0 3 3 0 8 0 fdescpl 528 633 0 602 3 0 3 3 0 8 0 filepl 160 2963 0 2728 15 0 15 15 0 8 4 lockfpl 104 115 0 110 1 0 1 1 0 8 0 lockfspl 48 57 0 52 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 43 0 26 1 0 1 1 0 8 0 ucredpl 104 486 0 472 1 0 1 1 0 8 0 zombiepl 144 673 0 671 2 1 1 1 0 8 0 processpl 1232 649 0 601 5 1 4 5 0 8 0 procpl 664 971 0 912 6 0 6 6 0 8 0 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 554 0 518 12 1 11 11 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 26 0 0 4 0 4 4 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 183 0 0 12 0 12 12 0 8 0 bufpl 272 2784 0 106 180 0 180 180 0 8 1 anonpl 32 7723 0 0 63 0 63 63 0 246 0 amapchunkpl 152 14344 0 13830 31 0 31 31 0 158 10 amappl16 200 1739 0 1713 14 12 2 14 0 8 0 amappl15 192 26 0 26 1 1 0 1 0 8 0 amappl14 184 441 0 440 1 0 1 1 0 8 0 amappl13 176 126 0 113 1 0 1 1 0 8 0 amappl12 168 886 0 854 2 0 2 2 0 8 0 amappl11 160 20 0 20 1 1 0 1 0 8 0 amappl10 152 66 0 52 1 0 1 1 0 8 0 amappl9 144 281 0 281 1 1 0 1 0 8 0 amappl8 136 103 0 101 1 0 1 1 0 8 0 amappl7 128 161 0 148 1 0 1 1 0 8 0 amappl6 120 163 0 162 1 0 1 1 0 8 0 amappl5 112 96 0 85 1 0 1 1 0 8 0 amappl4 104 312 0 291 1 0 1 1 0 8 0 amappl3 96 2757 0 2636 4 0 4 4 0 8 0 amappl2 88 568 0 507 2 0 2 2 0 8 0 amappl1 80 11716 0 11106 17 3 14 17 0 8 0 amappl 88 4094 0 3921 5 0 5 5 0 92 0 uvmvnodes 80 111 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 dma512 512 1 0 1 1 0 1 1 0 8 1 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 0 1 0 1 1 0 8 0 uaddrrnd 24 633 0 602 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 633 0 602 1 0 1 1 0 8 0 vmmpekpl 168 7320 0 7281 2 0 2 2 0 8 0 vmmpepl 168 49362 0 47413 108 20 88 107 0 357 0 vmsppl 488 632 0 601 6 1 5 5 0 8 0 rwobjpl 80 17073 0 16006 29 4 25 29 0 8 0 pdppl 4096 1273 0 1202 103 30 73 87 0 8 2 pvpl 32 15191 0 0 124 1 123 124 0 265 0 pmappl 256 632 0 601 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 463 0 36 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83922ff0) 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(ffffffff83b13280) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83b13280) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80003c3cb810,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_page_remove(fffff0800812d148) at pmap_page_remove+0x689 pmap_tlb_shootwait sys/arch/amd64/amd64/pmap.c:3245 [inline] pmap_page_remove(fffff0800812d148) at pmap_page_remove+0x689 sys/arch/amd64/amd64/pmap.c:2049 uvm_anfree(fffff08063817780) at uvm_anfree+0xd8 sys/uvm/uvm_anon.c:111 amap_wipeout(fffff0806b15cc18) at amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80003c3cbac0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359 uvm_map_teardown(fffff0800b0631e8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2536 exit1(ffff8000fffefca0,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffefca0,ffff80003c3cbc90,ffff80003c3cbbe0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3cbc90) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3cbc90) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70d72d664ec0, count: -16 ddb{0}> machine ddbcpu 1 Stopped at bpfdetach+0x70: movq 0(%r15),%r12 ddb{1}> trace bpfdetach(ffff80000158f000) at bpfdetach+0x70 sys/net/bpf.c:1770 if_detach(ffff80000158f000) at if_detach+0x12b sys/net/if.c:1289 tun_clone_destroy(ffff80000158f000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343 if_clone_destroy(ffff80003c3d0e50) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000016265f8,80206979,ffff80003c3d0e50,ffff80002f793a18) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff80002f793a18,ffff80003c3d1030,ffff80003c3d0f80) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3d1030) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d1030) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb049bfba0e0, count: -8