*cpu1: uvm_fault(0xfffffd806f63d3d8, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x72e515617e20, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c4253b0 rbx 0 rdx 0 rcx 0xffff8000387eea80 rax 0x2a r8 0xffff80003c4252e0 r9 0 r10 0x3cf5a7dac16b7839 r11 0x2364afe50fffec74 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff830324c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c425330 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=11754 pid=36498 tcnt=2 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000387eed18,0xffff80003b8034f8 process=0xffff8000387f2b70 user=0xffff80003c420000, vmspace=0xfffffd806d2525e0 estcpu=36, cpticks=3, pctcpu=0.0, user=1, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 18922 472858 59974 0 2 0 syz-executor *36498 11754 76269 0 7 0 syz-executor 36498 391491 76269 0 3 0x4000080 fsleep syz-executor 37002 80076 25560 0 2 0 syz-executor 37002 250823 25560 0 3 0x4000080 fsleep syz-executor 37002 489406 25560 0 2 0x4000000 syz-executor 37002 161845 25560 0 3 0x4000080 fsleep syz-executor 27969 143535 36633 0 3 0x80 nanoslp syz-executor 27969 211508 36633 0 3 0x4000080 lockf syz-executor 27969 270321 36633 0 3 0x4000080 fsleep syz-executor 27969 436347 36633 0 3 0x4000080 fsleep syz-executor 25560 510426 84265 0 3 0x82 nanoslp syz-executor 90865 105644 0 0 3 0x14200 acct acct 5943 193343 84265 0 2 0x2 syz-executor 36633 47378 84265 0 3 0x82 nanoslp syz-executor 59974 218383 84265 0 3 0x82 nanoslp syz-executor 47005 229250 84265 0 2 0x10000002 syz-executor 76269 25802 84265 0 3 0x82 nanoslp syz-executor 8688 287067 84265 0 3 0x82 wait syz-executor 35366 339847 84265 0 3 0x82 nanoslp syz-executor 84265 358385 73700 0 3 0x82 kqread syz-executor 73700 479314 51953 0 3 0x10008a sigsusp ksh 51953 207077 29698 0 3 0x98 kqread sshd-session 29698 171258 20706 0 3 0x92 kqread sshd-session 92730 83544 1 0 3 0x100083 ttyopn getty 20706 239434 1 0 3 0x88 kqread sshd 66207 444558 57174 74 3 0x1100092 bpf pflogd 57174 419114 1 0 3 0x80 sbwait pflogd 37076 364908 28311 73 3 0x1100090 kqread syslogd 28311 386201 1 0 3 0x100082 sbwait syslogd 56021 433285 1 0 3 0x100080 kqread resolvd 76901 41746 77390 77 3 0x100092 kqread dhcpleased 21818 375697 77390 77 3 0x100092 kqread dhcpleased 77390 1244 1 0 3 0x80 kqread dhcpleased 81700 165225 0 0 3 0x14200 bored smr 876 303862 0 0 2 0x14200 zerothread 24943 294164 0 0 3 0x14200 aiodoned aiodoned 27055 258578 0 0 3 0x14200 syncer update 85279 191093 0 0 3 0x14200 cleaner cleaner 28309 480792 0 0 2 0x14200 reaper 312 394054 0 0 3 0x14200 pgdaemon pagedaemon 38608 189671 0 0 3 0x14200 bored viomb 79606 491576 0 0 3 0x40014200 acpi0 acpi0 7674 75914 0 0 3 0x40014200 idle1 13778 496867 0 0 3 0x14200 bored softnet1 60569 448338 0 0 3 0x14200 bored softnet0 72121 330268 0 0 3 0x14200 bored systqmp 52500 467664 0 0 3 0x14200 syncxs systq 44549 58713 0 0 3 0x14200 tmoslp softclockmp 12168 177797 0 0 3 0x40014200 tmoslp softclock 53908 285105 0 0 3 0x40014200 idle0 1 346639 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 37002 (syz-executor) thread 0xffff8000387eefb0 (489406) exclusive rwlock inet46 r = 0 (0xffff800001656960) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 socreate+0x214 pru_attach sys/sys/protosw.h:-1 [inline] #2 socreate+0x214 sys/kern/uipc_socket.c:220 #3 sys_socketpair+0xcc sys/kern/uipc_syscalls.c:476 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff83855fb0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 solock_shared+0x6e sys/kern/uipc_socket2.c:343 #3 socreate+0x214 pru_attach sys/sys/protosw.h:-1 [inline] #3 socreate+0x214 sys/kern/uipc_socket.c:220 #4 sys_socketpair+0xcc sys/kern/uipc_syscalls.c:476 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 Process 5943 (syz-executor) thread 0xffff8000fffee018 (193343) exclusive rwlock vmmaplk r = 0 (0xfffffd806d252128) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3746 #4 process_new+0x577 sys/kern/kern_fork.c:281 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd806f63d2f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3737 #4 process_new+0x577 sys/kern/kern_fork.c:281 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 Process 28309 (reaper) thread 0xffff8000ffffdc90 (480792) exclusive rwlock kmmaplk r = 0 (0xffffffff839e6368) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:714 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1ca sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 Process 52500 (systq) thread 0xffff8000ffffe000 (467664) shared rwlock systq r = 0 (0xffffffff837b98e8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11082 12117K 12342K 166960K 12861 0 pcb 18 16K 21K 166960K 539 0 rtable 222 11K 12K 166960K 491 0 pf 37 18K 21K 166960K 128 0 ifaddr 39 6K 8K 166960K 89 0 ifgroup 59 2K 3K 166960K 140 0 sysctl 4 1K 9K 166960K 11 0 counters 72 37K 38K 166960K 178 0 ioctlops 0 0K 4K 166960K 1692 0 iov 0 0K 16K 166960K 33 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1372 86K 87K 166960K 2102 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 33 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 906 0 sigio 0 0K 0K 166960K 8 0 proc 73 115K 147K 166960K 626 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 69 0 in_multi 78 5K 7K 166960K 145 0 ether_multi 1 0K 0K 166960K 11 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 527 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 237 175K 189K 166960K 10071 0 UVM aobj 18 22K 22K 166960K 20 0 pinsyscall 42 84K 105K 166960K 2045 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 75 0 NDP 13 0K 2K 166960K 63 0 temp 50 8673K 8744K 166960K 41240 0 kqueue 13 20K 30K 166960K 197 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 vscsiccb 40 1 0 0 1 0 1 1 0 8 0 plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 87 0 84 1 0 1 1 0 8 0 rtentry 176 137 0 52 5 0 5 5 0 8 0 unpcb 144 504 0 487 4 2 2 3 0 8 1 syncache 336 6 0 6 3 2 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 193 0 186 3 1 2 2 0 8 1 arp 136 24 0 7 1 0 1 1 0 8 0 inpcb 328 1233 0 1219 13 7 6 12 0 8 4 nd6 152 29 0 9 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 2 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 46 0 46 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 1 0 1 0 8 0 pffrag 232 10 0 4 1 0 1 1 0 482 0 pffrnode 88 10 0 4 1 0 1 1 0 8 0 pffrent 40 48 0 42 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 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pfstitem 24 65 0 27 1 0 1 1 0 8 0 pfstkey 128 65 0 27 2 0 2 2 0 8 0 pfstate 448 65 0 27 6 0 6 6 0 8 0 pfrule 1344 25 0 18 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 587 0 246 28 6 22 28 0 8 0 art_table 40 590 0 246 5 0 5 5 0 8 0 art_node 32 136 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 27 0 17 1 0 1 1 0 8 0 shmpl 112 6 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 3175 0 1666 96 0 96 96 0 8 0 ffsino 296 3175 0 1666 118 1 117 118 0 8 0 nchpl 144 4434 0 2733 64 0 64 64 0 8 0 rtmask 32 8 0 8 3 3 0 1 0 8 0 vnodes 216 3516 0 0 196 0 196 196 0 8 0 namei 1024 15036 0 15036 1 0 1 1 0 8 1 percpumem 16 104 0 53 1 0 1 1 0 8 0 vcpupl 3968 10 0 0 2 0 2 2 0 8 0 vmpool 848 11 0 1 3 1 2 2 0 8 0 kstatmem 264 94 0 64 3 0 3 3 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 18437 0 18436 9 7 2 7 1 8 1 plimitpl 152 298 0 281 1 0 1 1 0 8 0 sigapl 424 1199 0 1150 7 1 6 7 0 8 0 knotepl 120 601 0 0 19 0 19 19 0 8 0 kqueuepl 224 312 0 301 2 1 1 2 0 8 0 pipepl 344 305 0 278 9 3 6 9 0 8 3 fdescpl 528 1173 0 1142 3 0 3 3 0 8 0 filepl 160 7593 0 7375 19 4 15 18 0 8 5 lockfpl 104 274 0 270 1 0 1 1 0 8 0 lockfspl 48 118 0 115 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 45 0 28 1 0 1 1 0 8 0 ucredpl 104 1541 0 1528 1 0 1 1 0 8 0 zombiepl 144 1637 0 1634 1 0 1 1 0 8 0 processpl 1232 1199 0 1150 5 0 5 5 0 8 0 procpl 664 2546 0 2489 6 0 6 6 0 8 0 sosppl 176 9 0 9 2 1 1 1 0 8 1 sockpl 752 1853 0 1819 18 8 10 17 0 8 5 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mtagpl 96 72 0 0 2 0 2 2 0 8 0 mbufpl 256 277 0 0 18 0 18 18 0 8 0 bufpl 280 7717 0 1580 439 0 439 439 0 8 0 anonpl 32 11600 0 0 94 0 94 94 0 246 0 amapchunkpl 152 33277 0 32817 30 3 27 28 0 158 5 amappl16 200 3749 0 3718 43 30 13 27 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 3 0 3 1 1 0 1 0 8 0 amappl13 176 437 0 435 1 0 1 1 0 8 0 amappl12 168 1551 0 1509 3 0 3 3 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 85 0 84 1 0 1 1 0 8 0 amappl6 120 289 0 276 1 0 1 1 0 8 0 amappl5 112 91 0 80 1 0 1 1 0 8 0 amappl4 104 434 0 404 1 0 1 1 0 8 0 amappl3 96 5709 0 5623 4 1 3 3 0 8 0 amappl2 88 1331 0 1254 2 0 2 2 0 8 0 amappl1 80 13022 0 12432 15 0 15 15 0 8 0 amappl 88 9180 0 9022 5 0 5 5 0 92 0 uvmvnodes 80 124 0 0 3 0 3 3 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma16384 16384 2 0 2 2 1 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 128 254 0 253 2 1 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 19 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1173 0 1142 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1173 0 1142 1 0 1 1 0 8 0 vmmpekpl 168 11820 0 11776 3 0 3 3 0 8 0 vmmpepl 168 81682 0 79779 112 14 98 107 0 357 4 vmsppl 488 1172 0 1142 6 1 5 5 0 8 0 rwobjpl 80 24297 0 23233 34 6 28 32 0 8 0 pdppl 4096 2375 0 2296 121 39 82 85 0 8 3 pvpl 32 20251 0 0 164 0 164 164 0 265 0 pmappl 256 1183 0 1143 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 318 0 52 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x72e515617e20, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x76 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x76 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83353b2a) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83417172) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c41f820,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c41f820) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c41f900, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x76 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x76 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83353b2a) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83417172) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c41f820,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c41f820) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001576000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff8000387ee550) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff8000387ee550) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c41f9d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068570bd0,1,fffffd80097fd5b0,ffff8000387ee550) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c94f4a0,ffff8000387ee550) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c94f4a0,ffff8000387ee550) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c94f4a0,ffff8000387ee550) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c94f4a0,ffff8000387ee550) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000387ee550) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000387ee550,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000387ee550,ffff80003c41fd40,ffff80003c41fc90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c41fd40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c41fd40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a4a8abb42c0, count: -26