panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 322 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *448578 71799 0 0 0x4000000 0K syz-executor 163351 99759 0 0x2 0x1 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343b3e6) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e8801,ffffffff833bad94,142,ffffffff833c5032) at __assert+0x29 tun_clone_destroy(ffff800001485800) at tun_clone_destroy+0x38a sys/net/if_tun.c:322 if_clone_destroy(ffff8000340b6010) at if_clone_destroy+0x1d7 sys/net/if.c:1383 tun_dev_close(4287e,283) at tun_dev_close+0x1dc sys/net/if_tun.c:529 spec_close(ffff8000340b60e0) at spec_close+0x412 VOP_CLOSE(fffffd8060c1f138,9,fffffd807f7d23a8,ffff8000ffffaa50) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8070822608,ffff8000ffffaa50) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd8070822608,ffff8000ffffaa50) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff8000340b6340) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000340b6340) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb7d6e9a010, count: 2 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 322 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343b3e6) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e8801,ffffffff833bad94,142,ffffffff833c5032) at __assert+0x29 tun_clone_destroy(ffff800001485800) at tun_clone_destroy+0x38a sys/net/if_tun.c:322 if_clone_destroy(ffff8000340b6010) at if_clone_destroy+0x1d7 sys/net/if.c:1383 tun_dev_close(4287e,283) at tun_dev_close+0x1dc sys/net/if_tun.c:529 spec_close(ffff8000340b60e0) at spec_close+0x412 VOP_CLOSE(fffffd8060c1f138,9,fffffd807f7d23a8,ffff8000ffffaa50) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8070822608,ffff8000ffffaa50) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd8070822608,ffff8000ffffaa50) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff8000340b6340) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000340b6340) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb7d6e9a010, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000340b5e90 rbx 0xffffffff83800dc7 cpu_info_full_primary+0x2dc7 rdx 0xffff800001441d80 rcx 0xffff8000ffffaa50 rax 0xffffffff837ffff0 cpu_info_full_primary+0x1ff0 r8 0 r9 0x8080808080808080 r10 0x5b14f4b4b3477d96 r11 0xbcf107e19668aa94 r12 0xffffffff83800bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8104b6f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000340b5e80 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=448578 pid=71799 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=8, usrpri=72, slppri=8, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff99c0,0xffff80003c4f2f98 process=0xffff80003c502250 user=0xffff8000340b1000, vmspace=0xfffffd806eb9b728 estcpu=22, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80168 261646 77473 0 2 0 syz-executor 59299 47709 99146 0 2 0 syz-executor 59299 158256 99146 0 3 0x4000080 kqsel syz-executor 59299 394676 99146 0 3 0x4000080 fsleep syz-executor 79290 223850 29889 -1 3 0x90 nanoslp syz-executor 79290 219055 29889 -1 3 0x4000090 kqsel syz-executor 79290 341766 29889 -1 3 0x4000090 fsleep syz-executor 79290 436048 29889 -1 3 0x4000090 fsleep syz-executor 71799 482575 77821 0 2 0x480 syz-executor *71799 448578 77821 0 7 0x4000000 syz-executor 71799 203849 77821 0 3 0x4000080 fsleep syz-executor 94146 523590 33497 0 3 0x80 nanoslp syz-executor 94146 200201 33497 0 3 0x4000080 msgwait syz-executor 94146 450805 33497 0 3 0x4000080 fsleep syz-executor 89840 130560 0 0 3 0x14200 bored sosplice 1081 459881 99759 0 2 0x2 syz-executor 33497 468517 99759 0 3 0x82 nanoslp syz-executor 77473 342401 99759 0 3 0x82 nanoslp syz-executor 29889 113614 99759 0 2 0x482 syz-executor 99146 391616 99759 0 2 0x482 syz-executor 54640 148657 99759 0 2 0x2 syz-executor 26545 398909 99759 0 2 0x2 syz-executor 77821 153949 99759 0 3 0x82 nanoslp syz-executor 99759 163351 31959 0 7 0x3 syz-executor 31959 141689 6378 0 3 0x10008a sigsusp ksh 6378 256144 20929 0 3 0x98 kqread sshd-session 20929 141062 35878 0 3 0x92 kqread sshd-session 93757 133589 1 0 3 0x100083 ttyin getty 35878 278302 1 0 3 0x88 kqread sshd 99747 372503 16257 74 3 0x1100092 bpf pflogd 16257 38726 1 0 3 0x80 sbwait pflogd 95641 17277 56766 73 3 0x1100090 kqread syslogd 56766 86816 1 0 3 0x100082 sbwait syslogd 1864 422083 1 0 3 0x100080 kqread resolvd 18516 27377 20847 77 2 0x100092 dhcpleased 58974 55217 20847 77 3 0x100092 kqread dhcpleased 20847 179116 1 0 3 0x80 kqread dhcpleased 29041 156063 0 0 3 0x14200 bored smr 28732 409914 0 0 2 0x14200 zerothread 91968 168500 0 0 3 0x14200 aiodoned aiodoned 21327 387730 0 0 3 0x14200 syncer update 28629 115560 0 0 3 0x14200 cleaner cleaner 26208 329770 0 0 3 0x14200 reaper reaper 79186 330724 0 0 3 0x14200 pgdaemon pagedaemon 70668 62340 0 0 3 0x14200 bored viomb 9698 507794 0 0 3 0x40014200 acpi0 acpi0 1742 237907 0 0 3 0x40014200 idle1 56716 60109 0 0 3 0x14200 bored softnet3 12138 522531 0 0 3 0x14200 bored softnet2 28388 392070 0 0 3 0x14200 bored softnet1 34876 287470 0 0 2 0x14200 softnet0 75810 89331 0 0 3 0x14200 bored systqmp 23670 425897 0 0 3 0x14200 bored systq 88230 399280 0 0 3 0x14200 tmoslp softclockmp 52628 450267 0 0 3 0x40014200 tmoslp softclock 6655 9757 0 0 3 0x40014200 idle0 1 478552 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex sbrcv r = 0 (0xffff8000014423d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 soreceive+0x10d5 sys/kern/uipc_socket.c:1103 #4 soo_read+0x60 sys/kern/sys_socket.c:67 #5 dofilereadv+0x230 sys/kern/sys_generic.c:252 #6 sys_read+0xa2 sys/kern/sys_generic.c:172 #7 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 71799 (syz-executor) thread 0xffff8000ffffaa50 (448578) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8398e998) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:414 #4 msleep+0x13b sys/kern/kern_synch.c:249 #5 vop_generic_revoke+0x38f sys/kern/vfs_default.c:94 #6 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #7 tun_clone_destroy+0x10b #8 if_clone_destroy+0x1d7 sys/net/if.c:1383 #9 tun_dev_close+0x1dc sys/net/if_tun.c:529 #10 spec_close+0x412 #11 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 #12 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #12 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #13 fdrop+0x126 sys/kern/kern_descrip.c:1265 #14 closef+0x192 sys/kern/kern_descrip.c:1249 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 exclusive rwlock clonelk r = 0 (0xffffffff83870ab8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 if_clone_destroy+0x67 #3 tun_dev_close+0x1dc sys/net/if_tun.c:529 #4 spec_close+0x412 #5 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x126 sys/kern/kern_descrip.c:1265 #8 closef+0x192 sys/kern/kern_descrip.c:1249 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 26545 (syz-executor) thread 0xffff80002a372538 (398909) exclusive rrwlock inode r = 0 (0xfffffd806be9d1b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3111 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c89f648) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3096 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 99759 (syz-executor) thread 0xffff80002a372a58 (163351) exclusive rwlock sbufrcv r = 0 (0xffff8000014423a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 soreceive+0x28e sys/kern/uipc_socket.c:882 #4 soo_read+0x60 sys/kern/sys_socket.c:67 #5 dofilereadv+0x230 sys/kern/sys_generic.c:252 #6 sys_read+0xa2 sys/kern/sys_generic.c:172 #7 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10262 11120K 11231K 166960K 11504 0 pcb 17 12K 12K 166960K 33 0 rtable 219 7K 8K 166960K 375 0 pf 39 18K 18K 166960K 64 0 ifaddr 41 7K 7K 166960K 55 0 ifgroup 58 2K 2K 166960K 80 0 sysctl 3 1K 1K 166960K 3 0 counters 66 36K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1497 0 iov 0 0K 4K 166960K 39 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1400 88K 88K 166960K 1489 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 247 0 sigio 0 0K 0K 166960K 3 0 proc 72 91K 128K 166960K 537 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 23 0 in_multi 88 6K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 394 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 204 72K 76K 166960K 4028 0 UVM aobj 16 2K 2K 166960K 16 0 pinsyscall 40 80K 106K 166960K 1370 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 13 0K 1K 166960K 35 0 temp 41 8631K 8694K 166960K 7774 0 kqueue 14 22K 26K 166960K 48 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 46 0 42 1 0 1 1 0 8 0 rtentry 112 113 0 13 4 0 4 4 0 8 0 unpcb 144 158 0 138 4 0 4 4 0 8 3 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 37 0 32 2 0 2 2 0 8 1 arp 120 18 0 2 1 0 1 1 0 8 0 inpcb 376 233 0 222 9 0 9 9 0 8 7 nd6 136 24 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 4 0 3 1 0 1 1 0 8 0 pppxif 1472 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 0 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 pfstitem 24 35 0 4 1 0 1 1 0 8 0 pfstkey 128 35 0 0 2 0 2 2 0 8 0 pfstate 376 32 0 2 3 0 3 3 0 8 0 pfrule 1344 24 0 18 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 458 0 50 29 0 29 29 0 8 1 art_table 32 460 0 50 4 0 4 4 0 8 0 art_node 16 112 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 0 1 1 0 8 1 semapl 112 6 0 1 1 0 1 1 0 8 0 shmpl 112 13 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1763 0 254 95 0 95 95 0 8 0 ffsino 280 1763 0 254 109 0 109 109 0 8 0 nchpl 144 2118 0 429 63 0 63 63 0 8 0 uvmvnodes 80 1950 0 0 40 0 40 40 0 8 0 vnodes 216 1950 0 0 109 0 109 109 0 8 0 namei 1024 6814 0 6813 2 0 2 2 0 8 1 percpumem 16 54 0 7 1 0 1 1 0 8 0 kstatmem 264 38 0 12 2 0 2 2 0 8 0 scxspl 216 6661 0 6661 6 3 3 3 1 8 3 plimitpl 152 42 0 25 1 0 1 1 0 8 0 sigapl 424 559 0 511 7 0 7 7 0 8 1 futexpl 64 1953 0 1948 1 0 1 1 0 8 0 knotepl 120 95 0 0 3 0 3 3 0 8 0 kqueuepl 216 57 0 46 1 0 1 1 0 8 0 pipepl 328 122 0 94 3 0 3 3 0 8 0 fdescpl 504 540 0 511 5 0 5 5 0 8 1 filepl 152 2519 0 2298 13 0 13 13 0 8 4 lockfpl 104 46 0 44 1 0 1 1 0 8 0 lockfspl 48 19 0 17 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 206 0 192 1 0 1 1 0 8 0 zombiepl 144 511 0 511 1 0 1 1 0 8 1 processpl 1168 559 0 511 5 0 5 5 0 8 1 procpl 656 758 0 701 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sockpl 688 440 0 405 10 0 10 10 0 8 6 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 140 0 0 9 0 9 9 0 8 0 bufpl 280 2520 0 128 171 0 171 171 0 8 0 anonpl 24 110578 0 107419 25 3 22 25 0 184 0 amapchunkpl 152 11998 0 11585 22 0 22 22 0 158 1 amappl16 200 2128 0 2104 5 3 2 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 120 0 107 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1203 0 1175 2 0 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 110 0 98 1 0 1 1 0 8 0 amappl6 120 180 0 176 1 0 1 1 0 8 0 amappl5 112 129 0 119 1 0 1 1 0 8 0 amappl4 104 325 0 306 1 0 1 1 0 8 0 amappl3 96 2028 0 1933 4 0 4 4 0 8 1 amappl2 88 668 0 607 2 0 2 2 0 8 0 amappl1 80 8414 0 7850 15 0 15 15 0 8 1 amappl 88 3633 0 3485 5 0 5 5 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 540 0 511 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 540 0 511 1 0 1 1 0 8 0 vmmpekpl 168 6231 0 6196 2 0 2 2 0 8 0 vmmpepl 168 39985 0 38240 89 0 89 89 0 357 4 vmsppl 456 539 0 511 5 0 5 5 0 8 1 rwobjpl 64 16204 0 13340 47 0 47 47 0 8 0 pdppl 4096 1088 0 1022 106 34 72 86 0 8 6 pvpl 32 11077 0 0 91 1 90 90 0 265 0 pmappl 248 539 0 511 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 281 0 36 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343b3e6) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e8801,ffffffff833bad94,142,ffffffff833c5032) at __assert+0x29 tun_clone_destroy(ffff800001485800) at tun_clone_destroy+0x38a sys/net/if_tun.c:322 if_clone_destroy(ffff8000340b6010) at if_clone_destroy+0x1d7 sys/net/if.c:1383 tun_dev_close(4287e,283) at tun_dev_close+0x1dc sys/net/if_tun.c:529 spec_close(ffff8000340b60e0) at spec_close+0x412 VOP_CLOSE(fffffd8060c1f138,9,fffffd807f7d23a8,ffff8000ffffaa50) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8070822608,ffff8000ffffaa50) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8070822608,ffff8000ffffaa50) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd8070822608,ffff8000ffffaa50) at closef+0x192 sys/kern/kern_descrip.c:1249 syscall(ffff8000340b6340) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000340b6340) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb7d6e9a010, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029aabff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8398e790) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8398e790) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 ktrgenio(ffff80002a372a58,3,0,ffff800000b38c40,3dc) at ktrgenio+0x238 sys/kern/kern_ktrace.c:264 dofilereadv(ffff80002a372a58,3,ffff80002a3a2328,0,ffff80002a3a23e0) at dofilereadv+0x42f sys/kern/sys_generic.c:268 sys_read(ffff80002a372a58,ffff80002a3a2490,ffff80002a3a23e0) at sys_read+0xa2 sys/kern/sys_generic.c:172 syscall(ffff80002a3a2490) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a2490) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a9851d7bf20, count: 5 ddb{1}> trace x86_ipi_db(ffff800029aabff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8398e790) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8398e790) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 ktrgenio(ffff80002a372a58,3,0,ffff800000b38c40,3dc) at ktrgenio+0x238 sys/kern/kern_ktrace.c:264 dofilereadv(ffff80002a372a58,3,ffff80002a3a2328,0,ffff80002a3a23e0) at dofilereadv+0x42f sys/kern/sys_generic.c:268 sys_read(ffff80002a372a58,ffff80002a3a2490,ffff80002a3a23e0) at sys_read+0xa2 sys/kern/sys_generic.c:172 syscall(ffff80002a3a2490) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a2490) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a9851d7bf20, count: -10