uvm_fault(0xfffffd806acc4d08, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND dt_ioctl_record_stop(ffff80000149e880) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a8acfe0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065f11b20,1,fffffd8007bfb2d8,ffff80002a8bc7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd80667e7e18,ffff80002a8bc7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80667e7e18,ffff80002a8bc7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a8bc7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a8bc7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a8bc7e8,ffff80002a8ad350,ffff80002a8ad2a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8ad350) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8ad350) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75555dca9790, count: 3 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: uvm_fault(0xfffffd806acc4d08, 0x0, 0, 1) -> e ddb> trace dt_ioctl_record_stop(ffff80000149e880) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a8acfe0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065f11b20,1,fffffd8007bfb2d8,ffff80002a8bc7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd80667e7e18,ffff80002a8bc7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80667e7e18,ffff80002a8bc7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a8bc7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a8bc7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a8bc7e8,ffff80002a8ad350,ffff80002a8ad2a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8ad350) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8ad350) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75555dca9790, count: -12 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a8acf10 rbx 0xffffffff81a6e1a0 dtclose rdx 0 rcx 0xffff80002a8bc7e8 rax 0xffffffff837c63b8 dt_prov_syscall r8 0xffffffffffffffff r9 0 r10 0x2a3367732f6652f7 r11 0x6a04b6bcb6b9b714 r12 0xffff80000006c080 r13 0 r14 0 r15 0xffff800000b50d00 rip 0xffffffff81a6e520 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a8acee0 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb> show proc PROC (syz-executor) tid=100979 pid=89974 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a8bc7e8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a8bca78,0xffff80002a8bc048 process=0xffff80002a8f2480 user=0xffff80002a8a8000, vmspace=0xfffffd806acc4d08 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 60139 163126 41598 0 2 0 syz-executor 60139 166468 41598 0 2 0x4000000 syz-executor 49086 6109 38206 0 3 0x80 nanoslp syz-executor 49086 411138 38206 0 3 0x4000080 ttyin syz-executor 49086 500111 38206 0 3 0x4000080 fsleep syz-executor 51568 358860 0 0 3 0x14280 nfsidl nfsio 70032 454342 0 0 3 0x14280 nfsidl nfsio 77750 142514 0 0 3 0x14280 nfsidl nfsio 90563 489792 0 0 3 0x14280 nfsidl nfsio 28218 35855 0 0 3 0x14280 nfsidl nfsio 46604 291860 0 0 3 0x14280 nfsidl nfsio 92964 454158 0 0 3 0x14280 nfsidl nfsio 29088 354716 0 0 3 0x14280 nfsidl nfsio 95305 82792 0 0 3 0x14280 nfsidl nfsio 58598 146456 0 0 3 0x14280 nfsidl nfsio 30210 265744 0 0 3 0x14280 nfsidl nfsio 19875 143359 0 0 3 0x14280 nfsidl nfsio 84714 91135 0 0 3 0x14280 nfsidl nfsio 16112 100390 0 0 3 0x14280 nfsidl nfsio 86457 63686 0 0 3 0x14280 nfsidl nfsio 48139 29486 0 0 3 0x14280 nfsidl nfsio 62585 19079 0 0 3 0x14280 nfsidl nfsio 91859 149715 0 0 3 0x14280 nfsidl nfsio 12136 425655 0 0 3 0x14280 nfsidl nfsio 12816 382693 0 0 3 0x14280 nfsidl nfsio 27102 296359 96596 0 3 0x80 nanoslp syz-executor 27102 214771 96596 0 3 0x4000080 pipewr syz-executor 27102 265770 96596 0 3 0x4000080 fsleep syz-executor 26780 502903 68689 0 3 0x80 nanoslp syz-executor 26780 466924 68689 0 3 0x4000080 lockf syz-executor 26780 294102 68689 0 3 0x4000080 fsleep syz-executor 44530 244370 91261 0 3 0x80 nanoslp syz-executor 44530 219089 91261 0 3 0x4000080 wsevent_read syz-executor 44530 227223 91261 0 3 0x4000080 fsleep syz-executor 88055 452345 29463 0 3 0x82 wait syz-executor 91261 265317 29463 0 3 0x82 nanoslp syz-executor 10911 21261 39215 0 3 0x82 sbwait sshd-session 34478 3036 0 0 3 0x14200 bored sosplice 6033 454981 39215 0 3 0x82 sbwait sshd-session 68689 57509 29463 0 3 0x82 nanoslp syz-executor 96596 306802 29463 0 3 0x82 nanoslp syz-executor 38206 67672 29463 0 3 0x82 nanoslp syz-executor 41598 186208 29463 0 3 0x82 nanoslp syz-executor 57704 212094 29463 0 3 0x82 wait syz-executor 48613 444240 29463 0 3 0x82 nanoslp syz-executor 29463 329881 51437 0 3 0x82 kqread syz-executor 51437 339589 14243 0 3 0x10008a sigsusp ksh 14243 180441 82252 0 3 0x98 kqread sshd-session 82252 278995 39215 0 3 0x92 kqread sshd-session 56951 287434 1 0 3 0x100083 ttyin getty 39215 150929 1 0 3 0x88 kqread sshd 66543 809 46201 73 3 0x1100090 kqread syslogd 46201 241714 1 0 3 0x100082 sbwait syslogd 94317 99891 1 0 3 0x100080 kqread resolvd 358 402542 61711 77 3 0x100092 kqread dhcpleased 38233 398968 61711 77 3 0x100092 kqread dhcpleased 61711 191985 1 0 3 0x80 kqread dhcpleased 85270 338598 0 0 3 0x14200 bored smr 3792 402875 0 0 2 0x14200 zerothread 18395 261671 0 0 3 0x14200 aiodoned aiodoned 59322 208626 0 0 3 0x14200 syncer update 29553 244054 0 0 3 0x14200 cleaner cleaner 40828 441422 0 0 3 0x14200 reaper reaper 63748 10258 0 0 3 0x14200 pgdaemon pagedaemon 92216 357651 0 0 3 0x14200 bored viomb 33554 379196 0 0 3 0x40014200 acpi0 acpi0 93949 192103 0 0 3 0x14200 bored softnet7 74517 152339 0 0 3 0x14200 bored softnet6 7963 370472 0 0 3 0x14200 bored softnet5 26848 224214 0 0 3 0x14200 bored softnet4 90888 496355 0 0 3 0x14200 bored softnet3 23802 262737 0 0 3 0x14200 bored softnet2 89614 284616 0 0 3 0x14200 bored softnet1 6549 340700 0 0 3 0x14200 bored softnet0 5298 86901 0 0 3 0x14200 bored systqmp 39065 414913 0 0 3 0x14200 bored systq 76266 184145 0 0 3 0x40014200 tmoslp softclock 98950 371057 0 0 3 0x40014200 idle0 1 413387 0 0 3 0x82 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 10201 11266K 11644K 166960K 12619 0 pcb 17 16K 20K 166960K 251 0 rtable 170 5K 7K 166960K 381 0 pf 30 13K 20K 166960K 87 0 ifaddr 40 7K 8K 166960K 82 0 ifgroup 46 2K 2K 166960K 109 0 sysctl 3 1K 9K 166960K 8 0 counters 31 17K 18K 166960K 123 0 ioctlops 0 0K 4K 166960K 166 0 iov 1 12K 28K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1496 94K 94K 166960K 2158 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 627 0 sigio 0 0K 0K 166960K 17 0 proc 60 59K 124K 166960K 587 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 55 0 in_multi 83 6K 7K 166960K 147 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 430 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 254 168K 178K 166960K 7225 0 UVM aobj 83 5K 5K 166960K 85 0 pinsyscall 43 86K 96K 166960K 1751 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 31 0 NDP 10 0K 2K 166960K 50 0 temp 58 8671K 8791K 166960K 17830 0 kqueue 14 22K 30K 166960K 118 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 68 0 65 1 0 1 1 0 8 0 rtentry 136 140 0 68 4 0 4 4 0 8 0 unpcb 144 424 0 401 6 0 6 6 0 8 5 syncache 336 13 0 13 1 0 1 1 0 8 1 tcpqe 32 4 0 4 1 0 1 1 0 8 1 tcpcb 736 250 0 236 8 0 8 8 0 8 6 arp 88 14 0 4 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 4 0 3 1 0 1 1 0 8 0 inpcb 328 748 0 730 8 0 8 8 0 8 6 ip6q 72 3 0 1 1 0 1 1 0 8 0 ip6af 40 6 0 2 1 0 1 1 0 8 0 nd6 104 25 0 11 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 83 0 83 1 0 1 1 0 8 1 pppxif 1384 69 0 69 1 0 1 1 0 8 1 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 3 0 1 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 6 1 0 1 1 0 8 0 pfstate 384 4 0 3 1 0 1 1 0 8 0 pfrule 1344 2 0 2 1 0 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 659 0 294 30 0 30 30 0 8 4 art_table 40 660 0 294 5 0 5 5 0 8 0 art_node 32 136 0 74 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 82 0 2 3 0 3 3 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2454 0 953 95 0 95 95 0 8 0 ffsino 256 2454 0 953 95 0 95 95 0 8 0 nchpl 144 3321 0 1629 63 0 63 63 0 8 0 uvmvnodes 80 3153 0 0 65 0 65 65 0 8 0 vnodes 216 3153 0 0 176 0 176 176 0 8 0 namei 1024 11612 0 11612 2 0 2 2 0 8 2 kstatmem 264 60 0 40 3 0 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 10606 0 10606 8 0 8 8 1 8 8 plimitpl 152 130 0 112 1 0 1 1 0 8 0 sigapl 424 936 0 863 9 0 9 9 0 8 0 knotepl 120 21683 0 21625 22 0 22 22 0 8 18 kqueuepl 184 185 0 173 1 0 1 1 0 8 0 pipepl 304 144 0 116 3 0 3 3 0 8 0 fdescpl 448 894 0 862 5 0 5 5 0 8 1 filepl 120 5213 0 4971 13 0 13 13 0 8 4 lockfpl 104 558 0 554 2 0 2 2 0 8 1 lockfspl 48 200 0 197 1 0 1 1 0 8 0 sessionpl 144 33 0 23 1 0 1 1 0 8 0 pgrppl 48 46 0 28 1 0 1 1 0 8 0 ucredpl 104 530 0 518 1 0 1 1 0 8 0 zombiepl 144 866 0 863 1 0 1 1 0 8 0 processpl 1168 936 0 863 6 0 6 6 0 8 0 procpl 656 1619 0 1537 8 0 8 8 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 552 1355 0 1311 13 0 13 13 0 8 9 mcl64k 65536 27 0 27 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 1 0 1 1 0 8 1 mcl4k 4096 3095 0 3045 14 0 14 14 0 8 7 mcl2k2 2112 3 0 3 1 0 1 1 0 8 1 mcl2k 2048 1009 0 1003 3 0 3 3 0 8 2 mtagpl 96 30 0 20 1 0 1 1 0 8 0 mbufpl 256 9232 0 9050 14 0 14 14 0 8 0 bufpl 280 3845 0 119 267 0 267 267 0 8 0 anonpl 24 155414 0 151772 42 0 42 42 0 187 11 amapchunkpl 152 22799 0 22275 27 0 27 27 0 158 4 amappl16 200 2541 0 2510 6 0 6 6 0 8 3 amappl15 192 41 0 41 1 0 1 1 0 8 1 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 1541 0 1509 3 0 3 3 0 8 1 amappl11 160 47 0 36 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 0 1 1 0 8 1 amappl9 144 279 0 278 1 0 1 1 0 8 0 amappl8 136 49 0 47 1 0 1 1 0 8 0 amappl7 128 134 0 121 1 0 1 1 0 8 0 amappl6 120 198 0 192 1 0 1 1 0 8 0 amappl5 112 120 0 114 1 0 1 1 0 8 0 amappl4 104 304 0 289 1 0 1 1 0 8 0 amappl3 96 4360 0 4239 4 0 4 4 0 8 0 amappl2 88 727 0 655 2 0 2 2 0 8 0 amappl1 80 12346 0 11634 17 0 17 17 0 8 0 amappl 88 6409 0 6232 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 254 0 254 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 84 0 2 2 0 2 2 0 8 0 uaddrrnd 24 894 0 862 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 894 0 862 1 0 1 1 0 8 0 vmmpekpl 168 8987 0 8947 2 0 2 2 0 8 0 vmmpepl 168 64381 0 62206 101 0 101 101 0 357 4 vmsppl 368 893 0 862 4 0 4 4 0 8 0 rwobjpl 40 22851 0 18561 44 0 44 44 0 8 0 pdppl 4096 1794 0 1724 106 36 70 82 0 8 0 pvpl 32 415064 0 404797 113 0 113 113 0 265 15 pmappl 216 893 0 862 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 393 0 36 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dt_ioctl_record_stop(ffff80000149e880) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a8acfe0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065f11b20,1,fffffd8007bfb2d8,ffff80002a8bc7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd80667e7e18,ffff80002a8bc7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80667e7e18,ffff80002a8bc7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a8bc7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a8bc7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a8bc7e8,ffff80002a8ad350,ffff80002a8ad2a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8ad350) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8ad350) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75555dca9790, count: -12 ddb> machine ddbcpu 1 No such command ddb> trace dt_ioctl_record_stop(ffff80000149e880) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a8bc7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a8acfe0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065f11b20,1,fffffd8007bfb2d8,ffff80002a8bc7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80667e7e18,ffff80002a8bc7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd80667e7e18,ffff80002a8bc7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80667e7e18,ffff80002a8bc7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a8bc7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a8bc7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a8bc7e8,ffff80002a8ad350,ffff80002a8ad2a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8ad350) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8ad350) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75555dca9790, count: -12