F$Q9궨yJt}O㏤'(6I-5h Rק<& $w6uvm_fault(0xfffffd800b027b70, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 30977 55836 0 0 0 0 syz-executor dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3e7290) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ea63eb8,81,fffffd80097fb3a8,ffff8000ffff2fa0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b841400,ffff8000ffff2fa0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b841400,ffff8000ffff2fa0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000ffff2fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000ffff2fa0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000ffff2fa0,ffff80002a3e7600,ffff80002a3e7550) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3e7600) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7600) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f21a92f33a0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd800b027b70, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3e7290) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ea63eb8,81,fffffd80097fb3a8,ffff8000ffff2fa0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b841400,ffff8000ffff2fa0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b841400,ffff8000ffff2fa0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000ffff2fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000ffff2fa0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000ffff2fa0,ffff80002a3e7600,ffff80002a3e7550) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3e7600) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7600) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f21a92f33a0, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3e71c0 rbx 0x1 rdx 0 rcx 0xffff8000ffff2fa0 rax 0xffffffff837782b0 dt_prov_syscall r8 0 r9 0 r10 0xb04087139f4b7f6d r11 0xb8f314b3bde9d90 r12 0 r13 0 r14 0 r15 0xffff800000b41e00 rip 0xffffffff82fd0f28 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a3e7190 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=158237 pid=99919 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000ffff2fa0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800032008fb0,0xffff80003a43b790 process=0xffff80002a2c1cf8 user=0xffff80002a3e2000, vmspace=0xfffffd800b027b70 estcpu=34, cpticks=18, pctcpu=0.6, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26872 524168 88552 0 2 0 syz-executor 16629 28678 7444 0 2 0 syz-executor 16629 98264 7444 0 3 0x4000000 biowait syz-executor 45307 419814 82709 0 2 0 syz-executor 45307 335571 82709 0 3 0x4000080 fsleep syz-executor 45307 507224 82709 0 3 0x4000080 fsleep syz-executor 45314 455863 56860 0 2 0 syz-executor 45314 173135 56860 0 2 0x4000000 syz-executor 55836 30977 60571 0 7 0 syz-executor 55836 71065 60571 0 3 0x4000080 kqread syz-executor 55836 66271 60571 0 3 0x4000080 fsleep syz-executor 82470 255475 69437 0 2 0 syz-executor 82470 488096 69437 0 3 0x4000080 ttyretype syz-executor 82470 164107 69437 0 3 0x4000080 fsleep syz-executor 70464 20684 39186 0 3 0x80 nanoslp syz-executor 70464 222508 39186 0 3 0x4000080 kqsel syz-executor 70464 493918 39186 0 3 0x4000080 kqsel syz-executor 70464 131353 39186 0 3 0x4000080 fsleep syz-executor 82709 174702 89790 0 3 0x82 nanoslp syz-executor 60571 229323 89790 0 3 0x82 nanoslp syz-executor 56860 387572 89790 0 3 0x82 nanoslp syz-executor 88552 88655 89790 0 3 0x82 nanoslp syz-executor 65794 423398 0 0 3 0x14200 bored sosplice 39186 9218 89790 0 3 0x82 nanoslp syz-executor 7444 342074 89790 0 3 0x82 nanoslp syz-executor 69437 418745 89790 0 3 0x82 nanoslp syz-executor 16408 67809 89790 0 3 0x82 nanoslp syz-executor 89790 311544 51622 0 3 0x82 kqread syz-executor 51622 51406 70176 0 3 0x10008a sigsusp ksh 70176 110173 17664 0 3 0x98 kqread sshd-session 17664 265973 94167 0 3 0x92 kqread sshd-session 5920 406046 1 0 3 0x100083 ttyin getty 94167 496954 1 0 3 0x88 kqread sshd 67418 305418 13963 74 3 0x1100092 bpf pflogd 13963 59016 1 0 3 0x80 sbwait pflogd 55531 455725 87248 73 3 0x1100090 kqread syslogd 87248 431320 1 0 3 0x100082 sbwait syslogd 37842 430587 1 0 3 0x100080 kqread resolvd 6534 200597 6423 77 3 0x100092 kqread dhcpleased 46538 394999 6423 77 3 0x100092 kqread dhcpleased 6423 207481 1 0 3 0x80 kqread dhcpleased 56141 427960 0 0 3 0x14200 bored smr 25640 301673 0 0 2 0x14200 zerothread 64266 481043 0 0 3 0x14200 aiodoned aiodoned 38272 417835 0 0 3 0x14200 syncer update 49 300607 0 0 3 0x14200 cleaner cleaner 8518 169512 0 0 2 0x14200 reaper 5517 432551 0 0 3 0x14200 pgdaemon pagedaemon 87171 342934 0 0 3 0x14200 bored viomb 209 381454 0 0 3 0x40014200 acpi0 acpi0 78714 316063 0 0 3 0x40014200 idle1 44271 288073 0 0 3 0x14200 bored softnet7 10879 23910 0 0 3 0x14200 bored softnet6 65506 260460 0 0 3 0x14200 bored softnet5 19552 277545 0 0 3 0x14200 bored softnet4 64890 429447 0 0 3 0x14200 bored softnet3 38571 84134 0 0 3 0x14200 bored softnet2 56087 251286 0 0 3 0x14200 bored softnet1 41007 463969 0 0 3 0x14200 bored softnet0 95419 68788 0 0 3 0x14200 bored systqmp 55928 518650 0 0 3 0x14200 bored systq 97405 69632 0 0 3 0x14200 tmoslp softclockmp 46410 234846 0 0 3 0x40014200 tmoslp softclock 99215 346874 0 0 3 0x40014200 idle0 1 207378 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 26872 (syz-executor) thread 0xffff80003a43afb8 (524168) Process 16629 (syz-executor) thread 0xffff800032009248 (98264) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 11077K 11315K 166960K 11927 0 pcb 19 14K 16K 166960K 143 0 rtable 184 9K 9K 166960K 462 0 pf 34 17K 18K 166960K 127 0 ifaddr 39 7K 8K 166960K 107 0 ifgroup 51 2K 2K 166960K 164 0 sysctl 4 1K 9K 166960K 12 0 counters 66 36K 37K 166960K 176 0 ioctlops 0 0K 4K 166960K 1573 0 iov 0 0K 16K 166960K 38 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1366 86K 86K 166960K 1825 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 39 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 232K 166960K 834 0 sigio 1 0K 0K 166960K 18 0 proc 72 115K 164K 166960K 741 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 79 0 in_multi 87 6K 7K 166960K 180 0 ether_multi 1 0K 0K 166960K 3 0 mrt 3 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 601 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 243 160K 175K 166960K 9020 0 UVM aobj 14 2K 4K 166960K 18 0 pinsyscall 43 86K 102K 166960K 2034 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 36 0 NDP 13 0K 2K 166960K 74 0 temp 53 8652K 8719K 166960K 46400 0 kqueue 14 22K 27K 166960K 160 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 93 0 90 1 0 1 1 0 8 0 rtentry 176 169 0 97 5 0 5 5 0 8 0 unpcb 144 656 0 636 4 0 4 4 0 8 3 syncache 336 5 0 5 3 2 1 1 0 8 1 tcpcb 736 367 0 362 19 12 7 13 0 8 6 arp 128 21 0 13 1 0 1 1 0 8 0 inpcb 328 955 0 944 23 11 12 12 0 8 10 nd6 144 28 0 13 1 0 1 1 0 8 0 pkpcb 40 38 0 38 1 0 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 38 0 38 2 1 1 1 0 8 1 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 1 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 75 0 14 1 0 1 1 0 8 0 pfstkey 128 77 0 16 2 0 2 2 0 8 0 pfstate 384 75 0 15 7 0 7 7 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 6 0 6 3 2 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 783 0 410 29 0 29 29 0 8 2 art_table 40 785 0 410 5 0 5 5 0 8 0 art_node 32 168 0 106 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 15 0 4 1 0 1 1 0 8 0 dirhash 1024 26 0 9 3 0 3 3 0 8 0 dino2pl 256 2769 0 1256 96 1 95 96 0 8 0 ffsino 296 2769 0 1256 117 0 117 117 0 8 0 nchpl 144 3815 0 2108 65 1 64 64 0 8 0 rtmask 32 11 0 11 2 1 1 1 0 8 1 uvmvnodes 80 3079 0 0 63 0 63 63 0 8 0 vnodes 216 3079 0 0 172 0 172 172 0 8 0 namei 1024 13421 0 13419 2 1 1 1 0 8 0 percpumem 16 103 0 55 1 0 1 1 0 8 0 kstatmem 264 98 0 74 4 1 3 3 0 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 19236 0 19235 10 9 1 8 1 8 0 plimitpl 152 120 0 101 1 0 1 1 0 8 0 sigapl 424 1116 0 1061 7 0 7 7 0 8 0 knotepl 120 806 0 0 25 0 25 25 0 8 0 kqueuepl 224 420 0 407 9 4 5 5 0 8 4 pipepl 344 170 0 142 3 0 3 3 0 8 0 fdescpl 528 1092 0 1060 3 0 3 3 0 8 0 filepl 160 6460 0 6232 22 7 15 15 0 8 5 lockfpl 104 310 0 308 2 0 2 2 0 8 1 lockfspl 48 80 0 78 1 0 1 1 0 8 0 sessionpl 144 28 0 19 1 0 1 1 0 8 0 pgrppl 48 46 0 29 1 0 1 1 0 8 0 ucredpl 104 671 0 657 1 0 1 1 0 8 0 zombiepl 144 1434 0 1433 1 0 1 1 0 8 0 processpl 1232 1116 0 1061 5 0 5 5 0 8 0 procpl 664 2267 0 2200 7 1 6 7 0 8 0 sosppl 168 10 0 10 3 2 1 1 0 8 1 sockpl 752 1753 0 1719 29 13 16 17 0 8 12 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 193 0 0 13 0 13 13 0 8 0 bufpl 280 7624 0 1481 439 0 439 439 0 8 0 anonpl 32 8050 0 0 65 0 65 65 0 246 0 amapchunkpl 152 30241 0 29736 42 9 33 33 0 158 12 amappl16 200 3752 0 3721 30 15 15 15 0 8 6 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 125 0 113 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1829 0 1798 3 1 2 2 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 117 0 105 1 0 1 1 0 8 0 amappl6 120 240 0 236 1 0 1 1 0 8 0 amappl5 112 140 0 131 1 0 1 1 0 8 0 amappl4 104 302 0 282 1 0 1 1 0 8 0 amappl3 96 5116 0 5020 3 0 3 3 0 8 0 amappl2 88 1333 0 1254 2 0 2 2 0 8 0 amappl1 80 11609 0 11005 16 1 15 15 0 8 0 amappl 88 8163 0 7993 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 17 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1092 0 1060 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1092 0 1060 1 0 1 1 0 8 0 vmmpekpl 168 10028 0 9972 3 0 3 3 0 8 0 vmmpepl 168 74880 0 72856 111 11 100 100 0 357 0 vmsppl 488 1091 0 1060 6 1 5 5 0 8 0 rwobjpl 80 25315 0 21286 90 3 87 87 0 8 0 pdppl 4096 2192 0 2120 102 28 74 84 0 8 2 pvpl 32 16109 0 0 130 0 130 130 0 265 0 pmappl 256 1091 0 1060 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 296 0 46 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8378eff0) 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 end of kernel end trace frame: 0x74046a0fbb10, count: 12 ddb{0}> trace x86_ipi_db(ffffffff8378eff0) 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 end of kernel end trace frame: 0x74046a0fbb10, count: -3 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3e7290) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ea63eb8,81,fffffd80097fb3a8,ffff8000ffff2fa0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b841400,ffff8000ffff2fa0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b841400,ffff8000ffff2fa0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000ffff2fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000ffff2fa0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000ffff2fa0,ffff80002a3e7600,ffff80002a3e7550) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3e7600) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7600) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f21a92f33a0, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000ffff2fa0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a3e7290) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ea63eb8,81,fffffd80097fb3a8,ffff8000ffff2fa0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b841400,ffff8000ffff2fa0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b841400,ffff8000ffff2fa0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b841400,ffff8000ffff2fa0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000ffff2fa0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000ffff2fa0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000ffff2fa0,ffff80002a3e7600,ffff80002a3e7550) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3e7600) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7600) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f21a92f33a0, count: -12