panic: bad arg kind: goroutine 16 [running]: github.com/google/syzkaller/prog.clone(0x0, 0xc001d49c40, 0xc00045f250, 0xc001f7b800, 0xc0020b9ba0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x91b github.com/google/syzkaller/prog.clone(0x9b07e0, 0xc001f11460, 0xc00045f250, 0x9b07e0, 0xc00242c020) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x18d github.com/google/syzkaller/prog.clone(0x9b07e0, 0xc001f11480, 0xc00045f250, 0x9b0760, 0xc0020b95b0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x18d github.com/google/syzkaller/prog.clone(0x9b07e0, 0xc001f114a0, 0xc00045f250, 0xc00045f2c8, 0xc00045f198) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x18d github.com/google/syzkaller/prog.clone(0x9b0820, 0xc001cefb90, 0xc00045f250, 0x9b0760, 0xc0020b9580) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x567 github.com/google/syzkaller/prog.(*Prog).Clone(0xc0019e1100, 0x8fe58d) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x279 github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc0014c47c0, 0xc000125590, 0xca88e0, 0x0, 0x0, 0x0, 0xc00000e6f0, 0x1, 0xc00045f560) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:845 +0xc2 github.com/google/syzkaller/prog.(*ResourceType).generate(0xca88e0, 0xc0014c47c0, 0xc000125590, 0x0, 0x9b0860, 0xc000042380, 0x2c64da008, 0x0, 0x1) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:675 +0x27c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0014c47c0, 0xc000125590, 0x9b6a20, 0xca88e0, 0xc000000000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:664 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:614 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc0014c47c0, 0xc000125590, 0xd36f80, 0xc, 0xc, 0xaaaaaaaaaaaaaa00, 0x38, 0x8, 0x2c585a708, 0x8, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:602 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcb1fa0, 0xc0014c47c0, 0xc000125590, 0x0, 0xd6efe0, 0x839901, 0x100c0000e2f00, 0x20, 0x20) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:786 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0014c47c0, 0xc000125590, 0x9b6ae0, 0xcb1fa0, 0x760000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:664 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:614 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc0014c47c0, 0xc000125590, 0xcb2120, 0x2, 0x2, 0x78b200, 0xc001466860, 0x38, 0xcaf7a0, 0x2, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:602 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcb20e0, 0xc0014c47c0, 0xc000125590, 0x0, 0xd6efe0, 0x78b7c1, 0xc001466160, 0x3a, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:786 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0014c47c0, 0xc000125590, 0x9b6ae0, 0xcb20e0, 0xd60000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:664 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:614 github.com/google/syzkaller/prog.(*UnionType).mutate(0xcab5e0, 0xc0014c47c0, 0xc000125590, 0x9b08a0, 0xc0014c4560, 0xc001467b88, 0xcb1260, 0x2, 0x2, 0xc0017eda10, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:474 +0x178 github.com/google/syzkaller/prog.(*Target).mutateArg(0xc000122000, 0xc0014c47c0, 0xc000125590, 0x9b08a0, 0xc0014c4560, 0xc001467b88, 0xcb1260, 0x2, 0x2, 0xc0017eda10, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:246 +0xe3 github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc00045fec0, 0xa) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:183 +0x322 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc00193c440, 0x9a9ba0, 0xc00214b710, 0x14, 0xc0020b1440, 0xc001d9a000, 0x1f7d, 0x2400) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:47 +0x32c main.(*Proc).loop(0xc002342e80) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x434 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:258 +0x1155 OpenBSD/amd64 (ci-openbsd-multicore-6.c.syzkaller.internal) (tty00) login: kernel: protection fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace in_delmulti(bfffeffffff7ffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000a41900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1149 tun_clone_destroy(ffff8000009d5000) 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(ffff800020f6cea0) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806e4401a8,7,fffffd807f7bf6c0,ffff800020e6dad8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067ddbef0,ffff800020e6dad8) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067ddbef0,ffff800020e6dad8) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067ddbef0,ffff800020e6dad8) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd8067ddbef0,ffff800020e6dad8) at closef+0x11c sys/kern/kern_descrip.c:1260 fdfree(ffff800020e6dad8) at fdfree+0x101 sys/kern/kern_descrip.c:1192 exit1(ffff800020e6dad8,0,d,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e6dad8,d) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e6dad8,d) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e6dad8) at userret+0x199 sys/kern/kern_sig.c:1867 syscall(ffff800020f6d320) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020f6d320) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbc1a0, count: -17 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800020f6cc70 rbx 0 rdx 0xffff800020e6dad8 rcx 0 rax 0 r8 0xffffffff81883fa3 rt_ifa_purge+0x153 r9 0x5 r10 0x2f r11 0xc9ecb1970f688588 r12 0 r13 0x3 r14 0xbfffeffffff7ffff r15 0x1 rip 0xffffffff8208ccbd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020f6cc10 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=93542 stat=onproc flags process=a proc=2000 pri=32, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed09d0,0xffff800020ec7888 process=0xffff800020e807c0 user=0xffff800020f68000, vmspace=0xfffffd807efffa10 estcpu=27, cpticks=0, pctcpu=0.17 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25298 144981 0 0 3 0x14200 bored sosplice 84532 324911 14799 0 2 0x100002 ksh 14799 495774 5093 0 3 0x92 select sshd 70996 293484 1 0 3 0x100083 ttyin getty 5093 29125 1 0 3 0x80 select sshd 15343 360020 52409 74 3 0x100092 bpf pflogd 52409 400354 1 0 3 0x80 netio pflogd 10595 85389 60892 73 3 0x100090 kqread syslogd 60892 359368 1 0 3 0x100082 netio syslogd 54975 322624 1 77 2 0x100090 dhclient 22625 37993 1 0 7 0x1 dhclient 74456 125710 0 0 3 0x14200 bored smr 30111 264583 0 0 2 0x14200 zerothread 60620 146346 0 0 3 0x14200 aiodoned aiodoned 94100 479846 0 0 3 0x14200 syncer update 1412 446018 0 0 3 0x14200 cleaner cleaner 3764 182358 0 0 3 0x14200 reaper reaper 96516 372430 0 0 3 0x14200 pgdaemon pagedaemon 9334 6013 0 0 3 0x14200 bored crynlk 51568 489347 0 0 3 0x14200 bored crypto 94585 398089 0 0 3 0x40014200 acpi0 acpi0 63380 278856 0 0 3 0x40014200 idle1 62270 155403 0 0 2 0x14200 softnet 3407 163685 0 0 2 0x14200 systqmp 92831 438201 0 0 3 0x14200 bored systq 3203 87024 0 0 3 0x40014200 bored softclock 32040 19312 0 0 3 0x40014200 idle0 1 191742 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 9528 6421K 6879K 78643K 11097 0 pcb 13 8K 8K 78643K 71 0 rtable 76 3K 4K 78643K 366 0 ifaddr 78 15K 17K 78643K 145 0 counters 41 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1511 0 iov 0 0K 16K 78643K 69 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1390 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 52 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 3 8K 25K 78643K 323 0 sigio 0 0K 0K 78643K 6 0 proc 62 63K 95K 78643K 504 0 subproc 14 0K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 27 0 in_multi 70 3K 4K 78643K 132 0 ether_multi 1 0K 0K 78643K 9 0 mrt 0 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 252 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 76 68K 73K 78643K 2009 0 UVM aobj 16 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 27 0 NDP 13 0K 0K 78643K 31 0 temp 111 3039K 3106K 78643K 8518 0 kqueue 2 2K 8K 78643K 22 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 11 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 44 0 42 1 0 1 1 0 8 0 rtentry 112 81 0 53 2 0 2 2 0 8 0 unpcb 120 218 0 207 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 10 0 10 2 2 0 1 0 8 0 tcpcb 544 107 0 104 2 1 1 2 0 8 0 inpcb 280 396 0 390 2 0 2 2 0 8 1 rttmr 72 3 0 3 1 1 0 1 0 8 0 nd6 48 13 0 12 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 4 1 0 1 1 0 482 0 pffrnode 88 5 0 4 1 0 1 1 0 8 0 pffrent 40 53 0 52 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 42 0 4 1 0 1 1 0 8 0 pfstkey 112 42 0 4 2 0 2 2 0 8 0 pfstate 328 42 0 4 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 350 0 163 13 1 12 13 0 8 0 art_table 32 352 0 163 2 0 2 2 0 8 0 art_node 16 80 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 48 0 38 1 0 1 1 0 8 0 shmpl 112 16 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1903 0 493 89 0 89 89 0 8 0 ffsino 272 1903 0 493 95 0 95 95 0 8 0 nchpl 144 2641 0 1049 60 0 60 60 0 8 0 uvmvnodes 72 2072 0 0 38 0 38 38 0 8 0 vnodes 208 2072 0 0 110 0 110 110 0 8 0 namei 1024 7381 0 7381 1 0 1 1 0 8 1 percpumem 16 39 0 8 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 6 1 0 1 1 0 8 0 scxspl 192 7088 0 7088 8 5 3 7 0 8 3 plimitpl 152 25 0 17 1 0 1 1 0 8 0 sigapl 424 536 0 506 4 0 4 4 0 8 0 futexpl 56 4884 0 4884 1 0 1 1 0 8 1 knotepl 112 97 0 92 1 0 1 1 0 8 0 kqueuepl 144 120 0 119 1 0 1 1 0 8 0 pipelkpl 48 134 0 126 1 0 1 1 0 8 0 pipepl 120 268 0 257 1 0 1 1 0 8 0 fdescpl 496 520 0 506 3 0 3 3 0 8 0 filepl 152 3386 0 3318 6 1 5 6 0 8 1 lockfpl 104 362 0 361 1 0 1 1 0 8 0 lockfspl 48 104 0 103 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 221 0 212 1 0 1 1 0 8 0 zombiepl 144 508 0 506 1 0 1 1 0 8 0 processpl 984 536 0 506 5 0 5 5 0 8 0 procpl 624 1175 0 1145 4 0 4 4 0 8 0 sosppl 128 1 0 1 1 0 1 1 0 8 1 sockpl 400 665 0 646 4 0 4 4 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 158 0 0 19 0 19 19 0 8 0 mtagpl 80 36 0 0 1 0 1 1 0 8 0 mbufpl 256 295 0 0 18 0 18 18 0 8 0 bufpl 280 4021 0 132 278 0 278 278 0 8 0 anonpl 16 65225 0 63907 71 7 64 70 0 124 46 amapchunkpl 152 2990 0 2950 11 1 10 10 0 158 6 amappl16 192 2336 0 2317 48 10 38 48 0 8 29 amappl15 184 79 0 78 1 0 1 1 0 8 0 amappl14 176 24 0 21 1 0 1 1 0 8 0 amappl13 168 85 0 83 1 0 1 1 0 8 0 amappl12 160 87 0 85 1 0 1 1 0 8 0 amappl11 152 204 0 188 1 0 1 1 0 8 0 amappl10 144 28 0 25 1 0 1 1 0 8 0 amappl9 136 389 0 388 1 0 1 1 0 8 0 amappl8 128 385 0 383 2 0 2 2 0 8 1 amappl7 120 125 0 117 1 0 1 1 0 8 0 amappl6 112 173 0 171 1 0 1 1 0 8 0 amappl5 104 272 0 256 1 0 1 1 0 8 0 amappl4 96 703 0 674 1 0 1 1 0 8 0 amappl3 88 113 0 108 1 0 1 1 0 8 0 amappl2 80 3217 0 3158 2 0 2 2 0 8 0 amappl1 72 21759 0 21331 23 13 10 18 0 8 0 amappl 80 1446 0 1419 2 0 2 2 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 17 0 2 1 0 1 1 0 8 0 uaddrrnd 24 531 0 512 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 531 0 512 1 0 1 1 0 8 0 vmmpekpl 168 8027 0 7996 2 0 2 2 0 8 0 vmmpepl 168 70055 0 69084 119 8 111 111 0 357 55 vmsppl 368 530 0 512 3 0 3 3 0 8 1 pdppl 4096 1070 0 1029 7 0 7 7 0 8 1 pvpl 32 209144 0 205991 173 8 165 173 0 265 104 pmappl 232 530 0 512 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 269 0 5 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8250aff0) 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(ffffffff82662c10) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82662c10) at __mp_lock+0x127 sys/kern/kern_lock.c:147 ktrgenio(ffff800020e6d118,4,0,ffff800000063930,20) at ktrgenio+0x232 ktrwrite2 sys/kern/kern_ktrace.c:611 [inline] ktrgenio(ffff800020e6d118,4,0,ffff800000063930,20) at ktrgenio+0x232 sys/kern/kern_ktrace.c:261 recvit(ffff800020e6d118,4,ffff800020eace18,0,ffff800020eacf00) at recvit+0x3f5 sys/kern/uipc_syscalls.c:830 sys_recvmsg(ffff800020e6d118,ffff800020eaceb0,ffff800020eacf00) at sys_recvmsg+0x14b sys/kern/uipc_syscalls.c:753 syscall(ffff800020eacf80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020eacf80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3a50, count: -9 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(bfffeffffff7ffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000a41900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1149 tun_clone_destroy(ffff8000009d5000) 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(ffff800020f6cea0) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806e4401a8,7,fffffd807f7bf6c0,ffff800020e6dad8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067ddbef0,ffff800020e6dad8) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067ddbef0,ffff800020e6dad8) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067ddbef0,ffff800020e6dad8) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd8067ddbef0,ffff800020e6dad8) at closef+0x11c sys/kern/kern_descrip.c:1260 fdfree(ffff800020e6dad8) at fdfree+0x101 sys/kern/kern_descrip.c:1192 exit1(ffff800020e6dad8,0,d,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e6dad8,d) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e6dad8,d) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e6dad8) at userret+0x199 sys/kern/kern_sig.c:1867 syscall(ffff800020f6d320) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020f6d320) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbc1a0, count: -17