*cpu1: uvm_fault(0xfffffd806c922b90, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x70dbc496c110, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000397f6d50 rbx 0 rdx 0 rcx 0xffff80003c456fb8 rax 0x2a r8 0xffff8000397f6c80 r9 0 r10 0xc3188749da5d3ef1 r11 0xa730a8c1ddf68ede r12 0 r13 0 r14 0 r15 0 rip 0xffffffff827284c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000397f6cd0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=509601 pid=67288 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4567f0,0xffff80003c457a28 process=0xffff80003c41ce90 user=0xffff8000397f1000, vmspace=0xfffffd806c922020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65020 517198 42247 0 2 0 syz-executor *67288 509601 35425 0 7 0 syz-executor 97362 156010 20020 0 2 0 syz-executor 97362 323662 20020 0 3 0x4000080 fsleep syz-executor 48259 415107 33343 0 2 0 syz-executor 48259 148933 33343 0 3 0x4000080 fsleep syz-executor 68381 343388 38692 0 3 0x3000 suspend syz-executor 68381 97955 38692 0 2 0x4081000 syz-executor 84927 224524 66480 0 2 0 syz-executor 84927 80643 66480 0 2 0x4000000 syz-executor 33343 223659 82927 0 3 0x82 nanoslp syz-executor 49444 158726 82927 0 3 0x82 nanoslp syz-executor 87822 348850 82927 0 3 0x2 biowait syz-executor 66480 170630 82927 0 3 0x82 nanoslp syz-executor 20020 214292 82927 0 2 0x2 syz-executor 35425 209703 82927 0 3 0x82 nanoslp syz-executor 42247 219093 82927 0 3 0x82 nanoslp syz-executor 38692 521132 82927 0 3 0x82 nanoslp syz-executor 82927 386844 28486 0 3 0x82 kqread syz-executor 28486 68505 81316 0 3 0x10008a sigsusp ksh 81316 29018 36973 0 3 0x98 kqread sshd-session 36973 167339 45048 0 3 0x92 kqread sshd-session 7652 131253 1 0 3 0x100083 ttyin getty 45048 440489 1 0 3 0x88 kqread sshd 61368 199751 7762 74 3 0x1100092 bpf pflogd 7762 196165 1 0 3 0x80 sbwait pflogd 22361 138016 52575 73 3 0x1100090 kqread syslogd 52575 140408 1 0 3 0x100082 sbwait syslogd 68309 405172 1 0 3 0x100080 kqread resolvd 16740 252209 4477 77 3 0x100092 kqread dhcpleased 5501 335488 4477 77 3 0x100092 kqread dhcpleased 4477 269342 1 0 3 0x80 kqread dhcpleased 72682 188982 0 0 3 0x14200 bored smr 74865 351961 0 0 2 0x14200 zerothread 53865 268100 0 0 3 0x14200 aiodoned aiodoned 39732 78685 0 0 3 0x14200 syncer update 57000 418384 0 0 3 0x14200 cleaner cleaner 30575 130939 0 0 3 0x14200 reaper reaper 47394 138069 0 0 3 0x14200 pgdaemon pagedaemon 1151 101279 0 0 3 0x14200 bored viomb 52383 216362 0 0 3 0x40014200 acpi0 acpi0 69599 32354 0 0 3 0x40014200 idle1 7964 101944 0 0 3 0x14200 bored softnet1 20311 490185 0 0 3 0x14200 bored softnet0 94089 320867 0 0 3 0x14200 smrbar systqmp 80253 33110 0 0 3 0x14200 bored systq 70961 150995 0 0 3 0x14200 tmoslp softclockmp 17669 502619 0 0 3 0x40014200 tmoslp softclock 22276 124959 0 0 3 0x40014200 idle0 1 510352 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c9fac10) #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_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2767 #4 uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1139 #5 uvm_fault+0x198 sys/uvm/uvm_fault.c:641 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #7 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #8 recall_trap+0x8 Process 67288 (syz-executor) thread 0xffff80003c456fb8 (509601) shared rwlock amaplk r = 0 (0xfffffd806e99d9e8) #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 uvm_fault_check+0x8bb sys/uvm/uvm_fault.c:840 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c922120) #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 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1902 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:699 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c9fac10) #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_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2767 #4 uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1139 #5 uvm_fault+0x198 sys/uvm/uvm_fault.c:641 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #7 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #8 recall_trap+0x8 Process 87822 (syz-executor) thread 0xffff80002a271770 (348850) exclusive rrwlock inode r = 0 (0xfffffd800f7cb208) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d218200) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 94089 (systqmp) thread 0xffff8000ffffecf8 (320867) shared rwlock systqmp r = 0 (0xffffffff8385f698) #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 10207 11116K 11428K 166960K 11587 0 pcb 19 12K 12K 166960K 34 0 rtable 219 6K 7K 166960K 359 0 pf 32 17K 19K 166960K 49 0 ifaddr 39 6K 7K 166960K 47 0 ifgroup 51 2K 2K 166960K 60 0 sysctl 1 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 74 0 ioctlops 0 0K 4K 166960K 1502 0 iov 0 0K 16K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1472 93K 93K 166960K 1563 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 219 0 sigio 0 0K 0K 166960K 4 0 proc 71 115K 164K 166960K 536 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 3 0 in_multi 88 6K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 387 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 235 167K 176K 166960K 3923 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 42 84K 103K 166960K 1348 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 11 0K 2K 166960K 29 0 temp 34 8662K 8918K 166960K 9812 0 kqueue 13 20K 26K 166960K 40 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 36 0 33 1 0 1 1 0 8 0 rtentry 176 114 0 14 6 0 6 6 0 8 0 unpcb 144 92 0 70 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 23 0 18 1 0 1 1 0 8 0 arp 136 18 0 2 1 0 1 1 0 8 0 inpcb 328 106 0 93 2 0 2 2 0 8 0 nd6 152 25 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 1 0 1 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 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 24 0 0 1 0 1 1 0 8 0 pfstkey 128 24 0 0 1 0 1 1 0 8 0 pfstate 448 24 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 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 256 492 0 75 31 0 31 31 0 8 3 art_table 40 493 0 75 5 0 5 5 0 8 0 art_node 32 114 0 22 1 0 1 1 0 8 0 semapl 112 6 0 3 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1705 0 192 95 0 95 95 0 8 0 ffsino 296 1705 0 192 117 0 117 117 0 8 0 nchpl 144 2024 0 327 64 0 64 64 0 8 0 vnodes 216 1968 0 0 110 0 110 110 0 8 0 namei 1024 6253 0 6253 2 0 2 2 0 8 2 percpumem 16 52 0 3 1 0 1 1 0 8 0 kstatmem 264 28 0 4 2 0 2 2 0 8 0 scxspl 216 6403 0 6402 3 2 1 2 1 8 0 plimitpl 152 40 0 22 1 0 1 1 0 8 0 sigapl 424 528 0 481 7 0 7 7 0 8 1 knotepl 120 298 0 0 10 0 10 10 0 8 0 kqueuepl 224 45 0 36 1 0 1 1 0 8 0 pipepl 344 127 0 99 3 0 3 3 0 8 0 fdescpl 528 512 0 481 3 0 3 3 0 8 0 filepl 160 2100 0 1868 16 0 16 16 0 8 6 lockfpl 104 27 0 22 1 0 1 1 0 8 0 lockfspl 48 13 0 9 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 14 1 0 1 1 0 8 0 ucredpl 104 190 0 177 1 0 1 1 0 8 0 zombiepl 144 483 0 481 1 0 1 1 0 8 0 processpl 1232 528 0 481 5 0 5 5 0 8 0 procpl 664 681 0 630 6 0 6 6 0 8 0 sockpl 752 237 0 199 4 0 4 4 0 8 0 mcl64k 65536 3 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 19 0 0 3 0 3 3 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 133 0 0 9 0 9 9 0 8 0 bufpl 280 2475 0 128 168 0 168 168 0 8 0 anonpl 32 5350 0 0 45 1 44 44 0 246 0 amapchunkpl 152 11386 0 10879 24 0 24 24 0 158 1 amappl16 200 1948 0 1926 5 2 3 5 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 9 0 8 1 0 1 1 0 8 0 amappl13 176 423 0 422 1 0 1 1 0 8 0 amappl12 168 869 0 829 3 0 3 3 0 8 0 amappl11 160 9 0 9 1 1 0 1 0 8 0 amappl10 152 49 0 35 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 35 0 32 1 0 1 1 0 8 0 amappl7 128 77 0 76 1 0 1 1 0 8 0 amappl6 120 273 0 260 1 0 1 1 0 8 0 amappl5 112 76 0 66 1 0 1 1 0 8 0 amappl4 104 418 0 387 1 0 1 1 0 8 0 amappl3 96 1967 0 1869 5 1 4 4 0 8 0 amappl2 88 532 0 471 2 0 2 2 0 8 0 amappl1 80 9726 0 9134 15 0 15 15 0 8 1 amappl 88 3179 0 3022 5 0 5 5 0 92 0 uvmvnodes 80 100 0 0 3 0 3 3 0 8 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 512 0 481 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 512 0 481 1 0 1 1 0 8 0 vmmpekpl 168 6094 0 6052 2 0 2 2 0 8 0 vmmpepl 168 40560 0 38679 91 0 91 91 0 357 4 vmsppl 488 511 0 481 5 0 5 5 0 8 1 rwobjpl 80 14653 0 13642 23 0 23 23 0 8 0 pdppl 4096 1032 0 962 98 26 72 86 0 8 2 pvpl 32 12487 0 0 102 1 101 101 0 265 0 pmappl 256 511 0 481 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 271 0 28 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: 0x70dbc496c110, 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(800,3e) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(3e) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83351b9d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8341767d) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c414160,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c414160) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c414240, 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(800,3e) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(3e) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83351b9d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8341767d) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c414160,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c414160) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001479000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff8000377e6d18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000377e6d18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c414310) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80671a62a8,81,fffffd80097fd618,ffff8000377e6d18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c971ed0,ffff8000377e6d18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c971ed0,ffff8000377e6d18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c971ed0,ffff8000377e6d18) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c971ed0,ffff8000377e6d18) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000377e6d18) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000377e6d18,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000377e6d18,ffff80003c414680,ffff80003c4145d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c414680) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c414680) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d90e6b95f90, count: -26