*cpu1: uvm_fault(0xfffffd8077c1a018, 0x0, 0, 1) -> e ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x77698480b2b0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003382b6b0 rbx 0 rdx 0 rcx 0xffff8000fffef4d8 rax 0x3c r8 0xffff80003382b5e0 r9 0 r10 0x87318f1c5bf90eb5 r11 0xf1a00624a8cee759 r12 0 r13 0 r14 0xffff8000fffef4d8 r15 0 rip 0xffffffff81fda3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80003382b630 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=272423 pid=97636 tcnt=2 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000317e0028,0xffff8000317e14f8 process=0xffff80002a3cf9d8 user=0xffff800033826000, vmspace=0xfffffd8077c1a3e8 estcpu=36, cpticks=3, pctcpu=0.0, user=1, sys=1, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94407 432080 50339 0 2 0 syz-executor *97636 272423 55312 0 7 0 syz-executor 97636 115806 55312 0 3 0x4000080 fsleep syz-executor 92004 499313 38785 0 3 0x80 nanoslp syz-executor 92004 79888 38785 0 3 0x4000080 semwait syz-executor 92004 230726 38785 0 3 0x4000080 fsleep syz-executor 76240 409432 97927 0 3 0x80 nanoslp syz-executor 76240 169700 97927 0 3 0x4000080 kqsel syz-executor 76240 367046 97927 0 3 0x4000080 fsleep syz-executor 19118 261058 39992 0 3 0x80 nanoslp syz-executor 19118 211741 39992 0 3 0x4000080 kqsel syz-executor 19118 489361 39992 0 3 0x4000080 fsleep syz-executor 39992 368295 73477 0 3 0x82 nanoslp syz-executor 38785 265737 73477 0 3 0x82 nanoslp syz-executor 42722 348045 73477 0 3 0x82 nanoslp syz-executor 34630 138427 1 0 3 0x100083 ttyin getty 62622 307339 73477 0 2 0x10000002 syz-executor 97927 515079 73477 0 3 0x82 nanoslp syz-executor 55312 455121 73477 0 3 0x82 nanoslp syz-executor 50339 14982 73477 0 3 0x82 nanoslp syz-executor 97505 408700 80653 0 3 0x100082 sbwait ndp 80653 477406 1 0 3 0x10008a sigsusp sh 33333 16484 73477 0 3 0x82 nanoslp syz-executor 73477 244809 45449 0 3 0x82 kqread syz-executor 45449 395878 6496 0 3 0x10008a sigsusp ksh 6496 471677 37362 0 3 0x98 kqread sshd-session 37362 352372 641 0 3 0x92 kqread sshd-session 641 484813 1 0 3 0x88 kqread sshd 51015 286659 11962 74 3 0x1100092 bpf pflogd 11962 23970 1 0 3 0x80 sbwait pflogd 44149 54795 97424 73 3 0x1100090 kqread syslogd 97424 324983 1 0 3 0x100082 sbwait syslogd 14679 439920 1 0 3 0x100080 kqread resolvd 68344 126820 300 77 3 0x100092 kqread dhcpleased 96860 1432 300 77 3 0x100092 kqread dhcpleased 300 91484 1 0 3 0x80 kqread dhcpleased 51715 625 0 0 3 0x14200 bored smr 8875 426038 0 0 2 0x14200 zerothread 50651 143271 0 0 3 0x14200 aiodoned aiodoned 32502 186989 0 0 3 0x14200 syncer update 5405 59761 0 0 3 0x14200 cleaner cleaner 32046 269980 0 0 3 0x14200 reaper reaper 1820 240889 0 0 3 0x14200 pgdaemon pagedaemon 48647 360140 0 0 3 0x14200 bored viomb 85217 246454 0 0 3 0x40014200 acpi0 acpi0 75721 289435 0 0 3 0x40014200 idle1 10317 252916 0 0 3 0x14200 bored softnet1 43238 161290 0 0 3 0x14200 bored softnet0 48419 226836 0 0 3 0x14200 smrbar systqmp 31311 294213 0 0 3 0x14200 bored systq 9382 402587 0 0 3 0x14200 tmoslp softclockmp 37201 97673 0 0 3 0x40014200 tmoslp softclock 62428 179244 0 0 3 0x40014200 idle0 1 331282 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806ec77c10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2163 #4 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:476 [inline] #4 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3191 #5 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 97636 (syz-executor) thread 0xffff8000fffef4d8 (272423) exclusive rwlock uobjlk r = 0 (0xfffffd806d8faaa8) #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 uvm_map_protect+0xb36 sys/uvm/uvm_map.c:3191 #3 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #5 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd8077c1a4e8) #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:5171 #3 uvm_map_protect+0xe0 sys/uvm/uvm_map.c:3064 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #6 Xsyscall+0x128 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806ec77c10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2163 #4 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:476 [inline] #4 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3191 #5 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 48419 (systqmp) thread 0xffff8000ffffe530 (226836) shared rwlock systqmp r = 0 (0xffffffff83854488) #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 10255 11171K 11558K 166960K 16398 0 pcb 19 16K 22K 166960K 829 0 rtable 259 15K 15K 166960K 1101 0 pf 46 19K 81K 166960K 374 0 ifaddr 45 9K 10K 166960K 259 0 ifgroup 70 2K 3K 166960K 465 0 sysctl 4 1K 9K 166960K 26 0 counters 78 38K 38K 166960K 666 0 ioctlops 0 0K 8K 166960K 2270 0 iov 0 0K 28K 166960K 180 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1473 93K 93K 166960K 4540 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 45 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 182 0 dirhash 12 2K 3K 166960K 84 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 248K 166960K 3420 0 sigio 0 0K 0K 166960K 102 0 proc 72 115K 164K 166960K 1203 0 subproc 81 5K 5K 166960K 181 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 657 0 in_multi 78 5K 7K 166960K 323 0 ether_multi 1 0K 0K 166960K 34 0 mrt 1 0K 0K 166960K 40 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 121 546K 546K 166960K 121 0 exec 0 0K 1K 166960K 918 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 259 163K 181K 166960K 32553 0 UVM aobj 156 152K 152K 166960K 162 0 pinsyscall 45 90K 101K 166960K 4823 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 230 0 NDP 16 0K 2K 166960K 196 0 temp 79 8676K 8804K 166960K 186222 0 kqueue 15 24K 32K 166960K 624 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 plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 300 0 296 1 0 1 1 0 8 0 rtentry 176 354 0 259 6 1 5 6 0 8 0 unpcb 144 2530 0 2510 31 27 4 8 0 8 3 syncache 336 8 0 8 5 5 0 1 0 8 0 tcpcb 736 1348 0 1337 26 24 2 7 0 8 0 arp 136 56 0 36 1 0 1 1 0 8 0 inpcb 328 4182 0 4164 47 40 7 13 0 8 5 nd6 152 64 0 43 1 0 1 1 0 8 0 pkpcb 40 27 0 27 8 7 1 1 0 8 1 kcovpl 48 20 0 11 1 0 1 1 0 8 0 mppekey 1024 4 0 4 3 3 0 1 0 8 0 ppxss 1192 251 0 249 4 3 1 1 0 8 0 pppxif 1504 16 0 16 6 6 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 26 0 21 2 0 2 2 0 482 0 pffrnode 88 23 0 18 1 0 1 1 0 8 0 pffrent 40 44 0 39 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 24 248 0 184 1 0 1 1 0 8 0 pfstkey 128 250 0 186 3 0 3 3 0 8 0 pfstate 448 249 0 185 16 6 10 16 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 rttmr 136 5 0 5 4 4 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1397 0 1030 39 12 27 31 0 8 0 art_table 40 1401 0 1030 5 0 5 5 0 8 0 art_node 32 352 0 273 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 10 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 176 0 166 1 0 1 1 0 8 0 shmpl 112 83 0 3 3 0 3 3 0 8 0 dirhash 1024 67 0 50 3 0 3 3 0 8 0 dino2pl 256 7693 0 6167 96 0 96 96 0 8 0 ffsino 296 7693 0 6167 118 0 118 118 0 8 0 nchpl 144 12139 0 10403 65 0 65 65 0 8 0 rtmask 32 45 0 44 8 7 1 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 43214 0 43214 2 1 1 1 0 8 1 percpumem 16 348 0 294 1 0 1 1 0 8 0 vcpupl 3968 75 0 2 10 0 10 10 0 8 0 vmpool 840 76 0 3 9 0 9 9 0 8 0 kstatmem 264 318 0 280 5 2 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 10 0 10 4 4 0 1 0 8 0 scxspl 216 65575 0 65575 19 18 1 8 1 8 1 plimitpl 152 1028 0 1007 1 0 1 1 0 8 0 sigapl 424 3659 0 3609 7 0 7 7 0 8 0 knotepl 120 876 0 0 25 0 25 25 0 8 0 kqueuepl 224 1094 0 1081 8 6 2 3 0 8 1 pipepl 344 526 0 496 6 2 4 4 0 8 0 fdescpl 528 3629 0 3596 3 0 3 3 0 8 0 filepl 160 25033 0 24789 45 31 14 20 0 8 2 lockfpl 104 1703 0 1700 2 1 1 2 0 8 0 lockfspl 48 634 0 631 1 0 1 1 0 8 0 sessionpl 144 41 0 32 1 0 1 1 0 8 0 pgrppl 48 183 0 165 1 0 1 1 0 8 0 ucredpl 104 3985 0 3971 1 0 1 1 0 8 0 zombiepl 144 4406 0 4403 3 2 1 1 0 8 0 processpl 1232 3659 0 3609 5 0 5 5 0 8 0 procpl 664 9079 0 9022 7 0 7 7 0 8 0 sosppl 176 37 0 37 7 6 1 1 0 8 1 sockpl 752 7235 0 7193 96 85 11 24 0 8 6 mcl64k 65536 22 0 0 3 0 3 3 0 8 0 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 94 0 0 7 0 7 7 0 8 0 mtagpl 96 74 0 0 2 0 2 2 0 8 0 mbufpl 256 1240 0 0 77 0 77 77 0 8 0 bufpl 280 25939 0 19802 439 0 439 439 0 8 0 anonpl 32 11644 0 0 95 1 94 94 0 246 0 amapchunkpl 152 114230 0 113710 62 34 28 43 0 158 2 amappl16 200 9795 0 9763 99 85 14 27 0 8 8 amappl15 192 5 0 5 2 2 0 1 0 8 0 amappl14 184 3 0 3 1 1 0 1 0 8 0 amappl13 176 570 0 568 1 0 1 1 0 8 0 amappl12 168 4074 0 4030 3 0 3 3 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 52 0 38 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 134 0 132 1 0 1 1 0 8 0 amappl6 120 428 0 412 1 0 1 1 0 8 0 amappl5 112 83 0 71 1 0 1 1 0 8 0 amappl4 104 513 0 482 1 0 1 1 0 8 0 amappl3 96 19937 0 19841 4 1 3 3 0 8 0 amappl2 88 3739 0 3661 2 0 2 2 0 8 0 amappl1 80 24499 0 23880 16 1 15 15 0 8 0 amappl 88 31104 0 30929 5 0 5 5 0 92 0 uvmvnodes 80 186 0 0 4 0 4 4 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 3 0 2 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 258 0 258 5 5 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 161 0 6 3 0 3 3 0 8 0 uaddrrnd 24 3629 0 3596 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3629 0 3596 1 0 1 1 0 8 0 vmmpekpl 168 26715 0 26642 4 0 4 4 0 8 0 vmmpepl 168 230458 0 228448 143 42 101 110 0 357 2 vmsppl 488 3628 0 3596 5 0 5 5 0 8 0 rwobjpl 80 58194 0 56870 43 10 33 34 0 8 0 pdppl 4096 7418 0 7271 202 53 149 151 0 8 2 pvpl 32 18768 0 0 151 0 151 151 0 265 0 pmappl 256 3704 0 3599 7 0 7 7 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 512 0 108 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x77698480b2b0, 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+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,61) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(61) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83392c95) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff80002a329b80) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline] db_ktrap(6,0,ffff80002a329b80) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff80002a329b80) at kerntrap+0x242 sys/arch/amd64/amd64/trap.c:501 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800010fdb000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 end trace frame: 0xffff80002a329cb0, 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+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,61) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(61) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83392c95) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff80002a329b80) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline] db_ktrap(6,0,ffff80002a329b80) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff80002a329b80) at kerntrap+0x242 sys/arch/amd64/amd64/trap.c:501 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800010fdb000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,1,2000,ffff8000317e0028) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff8000317e0028) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a329d30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805dfa47a0,1,fffffd80097fd340,ffff8000317e0028) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd800b9d5860,ffff8000317e0028) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd800b9d5860,ffff8000317e0028) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd800b9d5860,ffff8000317e0028) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd800b9d5860,ffff8000317e0028) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000317e0028) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000317e0028,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000317e0028,ffff80002a32a0a0,ffff80002a329ff0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a32a0a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a32a0a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c5babc44f60, count: -25