panic: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/pipex.c", line 501 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *524123 95550 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83340a86) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a593,ffffffff832d2d03,1f5,ffffffff83334581) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002a871d58) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a8082e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002a86f2b0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80638f6018,41,fffffd8007bfb5b0,ffff80002a8082e0) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806ba448e8,ffff80002a8082e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ba448e8,ffff80002a8082e0) at closef+0x190 sys/kern/kern_descrip.c:1264 syscall(ffff80002a86f500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86f500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b500417a30, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/pipex.c", line 501 ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83340a86) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a593,ffffffff832d2d03,1f5,ffffffff83334581) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002a871d58) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a8082e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002a86f2b0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80638f6018,41,fffffd8007bfb5b0,ffff80002a8082e0) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806ba448e8,ffff80002a8082e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ba448e8,ffff80002a8082e0) at closef+0x190 sys/kern/kern_descrip.c:1264 syscall(ffff80002a86f500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86f500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b500417a30, count: -13 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a86f090 rbx 0x1 rdx 0 rcx 0 rax 0xffff80002a8082e0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4cb2d32a6d642f77 r11 0xfb8eed0602dc71aa r12 0 r13 0xffff80002a8729e8 r14 0 r15 0x1 rip 0xffffffff82b675f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a86f080 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=524123 pid=95550 tcnt=4 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=0xffff80002a809508,0xffff80002a808820 process=0xffff80002a883240 user=0xffff80002a86a000, vmspace=0xfffffd806bbd1468 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 11776 198824 19919 -1 3 0x90 nanoslp syz-executor 11776 260049 19919 -1 3 0x4000090 ttyretype syz-executor 11776 259194 19919 -1 3 0x4000090 fsleep syz-executor 95550 265212 91168 0 3 0x80 nanoslp syz-executor *95550 524123 91168 0 7 0x4000000 syz-executor 95550 407381 91168 0 3 0x4000080 fsleep syz-executor 95550 479244 91168 0 3 0x4000080 fsleep syz-executor 60497 97915 56344 0 2 0 syz-executor 60497 412363 56344 0 2 0x4000000 syz-executor 57896 71121 98286 0 2 0 syz-executor 57896 207824 98286 0 3 0x4000080 fsleep syz-executor 57896 247056 98286 0 3 0x4000080 fsleep syz-executor 28989 390103 81516 0 2 0 syz-executor 28989 42167 81516 0 3 0x4000080 fsleep syz-executor 44157 436598 89603 0 2 0 syz-executor 44157 366951 89603 0 3 0x4000080 fsleep syz-executor 48767 477011 46626 0 2 0x2 syz-executor 19919 511455 46626 0 3 0x82 nanoslp syz-executor 77643 251876 0 0 3 0x14280 nfsidl nfsio 66017 66853 0 0 3 0x14280 nfsidl nfsio 96701 316363 0 0 3 0x14280 nfsidl nfsio 25667 69242 0 0 3 0x14280 nfsidl nfsio 1328 315191 0 0 3 0x14280 nfsidl nfsio 19041 375238 0 0 3 0x14280 nfsidl nfsio 95755 272297 0 0 3 0x14280 nfsidl nfsio 65679 403318 0 0 3 0x14280 nfsidl nfsio 48140 395490 0 0 3 0x14280 nfsidl nfsio 73696 504827 0 0 3 0x14280 nfsidl nfsio 89873 343837 0 0 3 0x14280 nfsidl nfsio 25342 152771 0 0 3 0x14280 nfsidl nfsio 99854 226869 0 0 3 0x14280 nfsidl nfsio 51052 309371 0 0 3 0x14280 nfsidl nfsio 54296 388730 0 0 3 0x14280 nfsidl nfsio 20256 414699 0 0 3 0x14280 nfsidl nfsio 21038 179499 0 0 3 0x14280 nfsidl nfsio 91111 157541 0 0 3 0x14280 nfsidl nfsio 78918 365072 0 0 3 0x14280 nfsidl nfsio 74920 514617 0 0 3 0x14280 nfsidl nfsio 89603 396453 46626 0 3 0x82 nanoslp syz-executor 12690 86109 46626 0 2 0x2 syz-executor 57351 408757 1 0 3 0x100083 ttyopn getty 36964 259070 0 0 3 0x14200 bored sosplice 98286 150987 46626 0 3 0x82 nanoslp syz-executor 91168 110653 46626 0 3 0x82 nanoslp syz-executor 81516 206778 46626 0 3 0x82 nanoslp syz-executor 56344 158100 46626 0 3 0x82 nanoslp syz-executor 46626 366615 79947 0 3 0x82 kqread syz-executor 79947 107920 1242 0 3 0x10008a sigsusp ksh 1242 488253 94359 0 3 0x98 kqread sshd-session 94359 204912 41186 0 3 0x92 kqread sshd-session 41186 263943 1 0 3 0x88 kqread sshd 66621 307497 15107 73 3 0x1100090 kqread syslogd 15107 42203 1 0 3 0x100082 sbwait syslogd 1732 108005 1 0 3 0x100080 kqread resolvd 49658 176977 0 0 3 0x14200 bored smr 25009 55772 0 0 2 0x14200 zerothread 75399 520942 0 0 3 0x14200 aiodoned aiodoned 41644 36656 0 0 3 0x14200 syncer update 71777 49252 0 0 3 0x14200 cleaner cleaner 32805 123858 0 0 3 0x14200 reaper reaper 9012 501902 0 0 3 0x14200 pgdaemon pagedaemon 13411 257191 0 0 3 0x14200 bored viomb 58705 319275 0 0 3 0x40014200 acpi0 acpi0 23942 455954 0 0 3 0x14200 bored softnet7 49343 143019 0 0 3 0x14200 bored softnet6 69509 430241 0 0 3 0x14200 bored softnet5 58097 168835 0 0 3 0x14200 bored softnet4 14119 247856 0 0 3 0x14200 bored softnet3 87331 200919 0 0 3 0x14200 bored softnet2 34640 429909 0 0 3 0x14200 bored softnet1 20237 406807 0 0 2 0x14200 softnet0 44673 463213 0 0 3 0x14200 bored systqmp 25171 249812 0 0 3 0x14200 bored systq 49782 228980 0 0 3 0x40014200 tmoslp softclock 38032 509136 0 0 3 0x40014200 idle0 1 262874 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 11062K 13130K 166960K 13224 0 pcb 17 18K 20K 166960K 612 0 rtable 202 13K 13K 166960K 659 0 pf 38 14K 21K 166960K 423 0 ifaddr 34 6K 9K 166960K 157 0 ifgroup 50 2K 2K 166960K 240 0 sysctl 4 1K 9K 166960K 28 0 counters 36 18K 18K 166960K 140 0 ioctlops 0 0K 4K 166960K 781 0 iov 0 0K 17K 166960K 86 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1517 95K 96K 166960K 3129 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 26 0 VM map 2 1K 1K 166960K 2 0 sem 23 6K 6K 166960K 51 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 1955 0 sigio 0 0K 0K 166960K 91 0 proc 55 51K 91K 166960K 817 0 subproc 72 4K 4K 166960K 119 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 344 0 in_multi 65 4K 7K 166960K 232 0 ether_multi 1 0K 0K 166960K 12 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 145 652K 652K 166960K 145 0 exec 0 0K 1K 166960K 1144 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 193 127K 168K 166960K 18081 0 UVM aobj 90 7K 7K 166960K 94 0 pinsyscall 31 62K 96K 166960K 3101 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 139 0 NDP 14 0K 2K 166960K 103 0 temp 82 8644K 8716K 166960K 73301 0 kqueue 9 16K 33K 166960K 396 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 265 0 264 2 0 2 2 0 8 1 rtentry 136 216 0 153 4 0 4 4 0 8 0 unpcb 144 1779 0 1769 12 5 7 7 0 8 6 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 644 0 637 13 6 7 7 0 8 6 arp 88 26 0 14 1 0 1 1 0 8 0 ipq 40 3 0 3 1 0 1 1 0 8 1 ipqe 40 4 0 4 1 0 1 1 0 8 1 inpcb 328 2178 0 2136 21 12 9 12 0 8 5 ip6q 72 44 0 38 1 0 1 1 0 8 0 ip6af 40 84 0 78 1 0 1 1 0 8 0 nd6 104 37 0 26 1 0 1 1 0 8 0 pkpcb 40 18 0 18 2 1 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 86 0 81 2 1 1 1 0 8 0 pppxif 1384 10 0 10 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 7 0 0 1 0 1 1 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 13 0 9 2 1 1 1 0 8 0 pfstate 384 7 0 5 2 1 1 1 0 8 0 pfrule 1344 8 0 7 2 1 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1090 0 777 31 2 29 30 0 8 8 art_table 40 1093 0 777 5 0 5 5 0 8 0 art_node 32 209 0 154 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 6 1 0 1 1 0 8 0 semupl 112 3 0 3 2 1 1 1 0 8 1 semapl 112 41 0 20 1 0 1 1 0 8 0 shmpl 112 91 0 4 3 0 3 3 0 8 0 dirhash 1024 38 0 21 3 0 3 3 0 8 0 dino2pl 256 5256 0 3752 95 0 95 95 0 8 0 ffsino 256 5256 0 3752 95 0 95 95 0 8 0 nchpl 144 7977 0 6279 64 0 64 64 0 8 0 rtmask 32 20 0 19 2 1 1 1 0 8 0 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 29889 0 29889 3 2 1 2 0 8 1 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 154 0 130 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 10 0 10 2 1 1 1 0 8 1 scxspl 216 29202 0 29202 10 7 3 8 1 8 3 plimitpl 152 497 0 480 1 0 1 1 0 8 0 sigapl 424 2254 0 2188 9 1 8 9 0 8 0 knotepl 120 91555 0 91329 60 49 11 25 0 8 4 kqueuepl 184 1087 0 1077 6 2 4 4 0 8 3 pipepl 304 383 0 356 8 0 8 8 0 8 5 fdescpl 448 2190 0 2165 5 1 4 5 0 8 0 filepl 120 17206 0 16969 19 6 13 14 0 8 5 lockfpl 104 1258 0 1256 3 1 2 2 0 8 1 lockfspl 48 366 0 364 1 0 1 1 0 8 0 sessionpl 144 27 0 20 1 0 1 1 0 8 0 pgrppl 48 111 0 96 1 0 1 1 0 8 0 ucredpl 104 3002 0 2992 1 0 1 1 0 8 0 zombiepl 144 2188 0 2188 1 0 1 1 0 8 1 processpl 1168 2254 0 2188 8 2 6 6 0 8 0 procpl 664 4915 0 4839 10 2 8 8 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 552 4398 0 4345 24 14 10 14 0 8 6 mcl64k 65536 240 0 240 1 0 1 1 0 8 1 mcl16k 16384 11 0 11 2 1 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 4 0 4 1 0 1 1 0 8 1 mcl8k 8192 36 0 36 2 1 1 1 0 8 1 mcl4k 4096 5003 0 4951 15 7 8 14 0 8 1 mcl2k2 2112 4 0 4 1 0 1 1 0 8 1 mcl2k 2048 2754 0 2749 5 1 4 4 0 8 2 mtagpl 96 8 0 8 1 0 1 1 0 8 1 mbufpl 256 23937 0 23839 25 7 18 23 0 8 8 bufpl 280 9454 0 3226 445 0 445 445 0 8 0 anonpl 24 287909 0 284842 67 8 59 59 0 187 29 amapchunkpl 152 62636 0 62189 39 5 34 34 0 158 11 amappl16 200 4534 0 4506 22 10 12 16 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 111 0 104 1 0 1 1 0 8 0 amappl13 176 20 0 20 2 1 1 1 0 8 1 amappl12 168 2880 0 2855 3 1 2 3 0 8 0 amappl11 160 43 0 39 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 258 0 258 1 1 0 1 0 8 0 amappl8 136 91 0 89 1 0 1 1 0 8 0 amappl7 128 116 0 109 1 0 1 1 0 8 0 amappl6 120 227 0 223 1 0 1 1 0 8 0 amappl5 112 143 0 138 1 0 1 1 0 8 0 amappl4 104 274 0 258 1 0 1 1 0 8 0 amappl3 96 12789 0 12697 5 1 4 4 0 8 1 amappl2 88 718 0 678 2 0 2 2 0 8 0 amappl1 80 15628 0 15176 13 1 12 13 0 8 0 amappl 88 17021 0 16876 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 4 0 3 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 257 0 257 2 1 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 22 0 21 1 0 1 1 0 8 0 aobjpl 72 93 0 4 2 0 2 2 0 8 0 uaddrrnd 24 2190 0 2165 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2190 0 2165 1 0 1 1 0 8 0 vmmpekpl 168 17169 0 17114 3 0 3 3 0 8 0 vmmpepl 168 136057 0 134557 94 0 94 94 0 357 21 vmsppl 368 2189 0 2165 4 1 3 4 0 8 0 rwobjpl 40 38701 0 31988 69 0 69 69 0 8 0 pdppl 4096 4387 0 4330 117 54 63 81 0 8 6 pvpl 32 897456 0 890083 155 12 143 143 0 265 54 pmappl 216 2189 0 2165 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 433 0 88 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83340a86) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a593,ffffffff832d2d03,1f5,ffffffff83334581) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002a871d58) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a8082e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002a86f2b0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80638f6018,41,fffffd8007bfb5b0,ffff80002a8082e0) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806ba448e8,ffff80002a8082e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ba448e8,ffff80002a8082e0) at closef+0x190 sys/kern/kern_descrip.c:1264 syscall(ffff80002a86f500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86f500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b500417a30, count: -13 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83340a86) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a593,ffffffff832d2d03,1f5,ffffffff83334581) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002a871d58) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001402000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a8082e0) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80002a86f2b0) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80638f6018,41,fffffd8007bfb5b0,ffff80002a8082e0) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806ba448e8,ffff80002a8082e0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806ba448e8,ffff80002a8082e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806ba448e8,ffff80002a8082e0) at closef+0x190 sys/kern/kern_descrip.c:1264 syscall(ffff80002a86f500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86f500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b500417a30, count: -13