*cpu1: uvm_fault(0xfffffd806b7b09a8, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7f73e5f744d0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a3c6540 rbx 0 rdx 0 rcx 0xffff80003ac16028 rax 0x2a r8 0xffff80002a3c6470 r9 0x1 r10 0x3a2197200f6b9a6e r11 0x558854d1eee268db r12 0 r13 0 r14 0 r15 0 rip 0xffffffff822974c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a3c64c0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=437829 pid=87911 tcnt=2 stat=onproc flags process=0 proc=0 runpri=83, usrpri=83, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003ac17a18,0xffff800032fe3258 process=0xffff80002a3c8e98 user=0xffff80002a3c1000, vmspace=0xfffffd806b7b0208 estcpu=33, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20699 425786 5729 0 2 0 syz-executor 20699 453289 5729 0 3 0x4000080 fsleep syz-executor 36848 93275 6410 0 2 0 syz-executor 36848 137416 6410 0 3 0x4000080 fsleep syz-executor *87911 437829 85361 0 7 0 syz-executor 87911 206278 85361 0 3 0x4000080 fsleep syz-executor 76510 312536 78329 0 2 0 syz-executor 76510 243366 78329 0 3 0x4000080 fsleep syz-executor 76510 129451 78329 0 3 0x4000080 fsleep syz-executor 40366 484862 29808 0 3 0x82 sbwait sshd-session 6410 70407 91857 0 3 0x82 nanoslp syz-executor 39267 67439 0 0 3 0x14280 nfsidl nfsio 72379 60299 0 0 3 0x14280 nfsidl nfsio 98800 372109 91857 0 3 0x2 biowait syz-executor 78329 66215 91857 0 3 0x82 nanoslp syz-executor 49971 47319 0 0 3 0x14200 bored sosplice 85361 48955 91857 0 2 0x2 syz-executor 5729 509635 91857 0 3 0x82 nanoslp syz-executor 66360 400225 91857 0 3 0x82 wait syz-executor 52144 315854 91857 0 2 0x2 syz-executor 87417 482190 91857 0 3 0x82 nanoslp syz-executor 91857 187083 16333 0 3 0x82 kqread syz-executor 16333 138739 4266 0 3 0x10008a sigsusp ksh 4266 135555 74747 0 3 0x98 kqread sshd-session 74747 274945 29808 0 3 0x92 kqread sshd-session 32253 487348 1 0 3 0x100083 ttyin getty 29808 175322 1 0 3 0x88 kqread sshd 90287 319119 33160 74 3 0x1100092 bpf pflogd 33160 363990 1 0 3 0x80 sbwait pflogd 31084 373240 16174 73 3 0x1100090 kqread syslogd 16174 39486 1 0 3 0x100082 sbwait syslogd 12154 58174 1 0 3 0x100080 kqread resolvd 65722 398597 94659 77 3 0x100092 kqread dhcpleased 46658 321920 94659 77 3 0x100092 kqread dhcpleased 94659 88587 1 0 3 0x80 kqread dhcpleased 66246 84887 0 0 3 0x14200 bored smr 14769 40351 0 0 3 0x14200 pgzero zerothread 16003 347525 0 0 3 0x14200 aiodoned aiodoned 7551 190409 0 0 3 0x14200 syncer update 4249 70451 0 0 3 0x14200 cleaner cleaner 83838 355939 0 0 2 0x14200 reaper 30128 128552 0 0 3 0x14200 pgdaemon pagedaemon 19610 42541 0 0 3 0x14200 bored viomb 57301 142330 0 0 3 0x40014200 acpi0 acpi0 81327 482720 0 0 3 0x40014200 idle1 57971 219291 0 0 3 0x14200 bored softnet1 68066 137326 0 0 3 0x14200 bored softnet0 6170 311380 0 0 3 0x14200 smrbar systqmp 65941 229096 0 0 3 0x14200 bored systq 39398 208689 0 0 3 0x14200 tmoslp softclockmp 85874 268435 0 0 3 0x40014200 tmoslp softclock 73824 282034 0 0 3 0x40014200 idle0 1 477389 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 (0xfffffd806b7af810) #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_lower_lookup+0x3d6 sys/uvm/uvm_fault.c:-1 #5 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #9 recall_trap+0x8 Process 87911 (syz-executor) thread 0xffff80003ac16028 (437829) exclusive rwlock uobjlk r = 0 (0xfffffd806c38faa0) #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_fault_lower_lookup+0x53 sys/uvm/uvm_fault.c:1236 #3 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b7b0308) #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:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806b7af810) #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_lower_lookup+0x3d6 sys/uvm/uvm_fault.c:-1 #5 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #9 recall_trap+0x8 Process 98800 (syz-executor) thread 0xffff80003ac17250 (372109) exclusive rrwlock inode r = 0 (0xfffffd806b140580) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e0a46e8) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 Process 6170 (systqmp) thread 0xffff8000ffffe298 (311380) shared rwlock systqmp r = 0 (0xffffffff83857a68) #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 10240 11072K 11366K 166960K 12939 0 pcb 19 14K 16K 166960K 404 0 rtable 185 9K 10K 166960K 443 0 pf 37 18K 67486K 166960K 127 0 ifaddr 38 6K 8K 166960K 101 0 ifgroup 57 2K 2K 166960K 152 0 sysctl 4 1K 9K 166960K 15 0 counters 70 37K 38K 166960K 302 0 ioctlops 0 0K 4K 166960K 1687 0 iov 0 0K 16K 166960K 108 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1460 92K 92K 166960K 2532 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 9K 166960K 24 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 141 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 1197 0 sigio 0 0K 0K 166960K 24 0 proc 72 115K 180K 166960K 726 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 151 0 in_multi 72 5K 7K 166960K 171 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 145 652K 652K 166960K 145 0 exec 0 0K 1K 166960K 703 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 251 169K 183K 166960K 12075 0 UVM aobj 36 2K 3K 166960K 42 0 pinsyscall 44 88K 106K 166960K 2345 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 58 0 NDP 13 0K 2K 166960K 69 0 temp 58 8647K 8735K 166960K 41363 0 kqueue 13 20K 34K 166960K 228 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 120 111 0 108 1 0 1 1 0 8 0 rtentry 176 153 0 83 5 0 5 5 0 8 0 unpcb 144 1151 0 1132 15 9 6 8 0 8 5 syncache 336 9 0 9 3 2 1 1 0 8 1 tcpqe 32 4 0 4 2 1 1 1 0 8 1 tcpcb 736 468 0 458 12 8 4 7 0 8 2 arp 136 18 0 8 1 0 1 1 0 8 0 inpcb 328 1485 0 1469 12 7 5 11 0 8 2 nd6 144 28 0 16 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 106 0 105 1 0 1 1 0 8 0 pppxif 1504 37 0 37 2 2 0 1 0 8 0 pffrag 232 10 0 5 1 0 1 1 0 482 0 pffrnode 88 9 0 5 1 0 1 1 0 8 0 pffrent 40 21 0 16 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 80 0 21 1 0 1 1 0 8 0 pfstkey 128 80 0 21 2 0 2 2 0 8 0 pfstate 384 79 0 21 6 0 6 6 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 770 0 329 33 2 31 31 0 8 1 art_table 40 773 0 329 5 0 5 5 0 8 0 art_node 32 153 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semapl 112 137 0 127 1 0 1 1 0 8 0 shmpl 112 39 0 6 1 0 1 1 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 3659 0 2155 95 0 95 95 0 8 0 ffsino 296 3659 0 2155 117 0 117 117 0 8 0 nchpl 144 5262 0 3560 64 0 64 64 0 8 0 rtmask 32 6 0 6 2 1 1 1 0 8 1 uvmvnodes 80 4383 0 0 90 0 90 90 0 8 0 vnodes 216 4383 0 0 244 0 244 244 0 8 0 namei 1024 18658 0 18657 2 1 1 2 0 8 0 percpumem 16 166 0 116 1 0 1 1 0 8 0 kstatmem 264 94 0 64 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 1 1 0 1 0 8 0 scxspl 216 28239 0 28238 13 12 1 8 1 8 0 plimitpl 152 474 0 455 1 0 1 1 0 8 0 sigapl 424 1468 0 1417 7 1 6 7 0 8 0 knotepl 120 588 0 0 18 0 18 18 0 8 0 kqueuepl 224 431 0 422 7 5 2 5 0 8 1 pipepl 344 261 0 234 7 1 6 6 0 8 3 fdescpl 528 1443 0 1411 3 0 3 3 0 8 0 filepl 160 10278 0 10055 27 8 19 20 0 8 8 lockfpl 104 404 0 401 1 0 1 1 0 8 0 lockfspl 48 179 0 176 1 0 1 1 0 8 0 sessionpl 144 30 0 20 1 0 1 1 0 8 0 pgrppl 48 54 0 36 1 0 1 1 0 8 0 ucredpl 104 1537 0 1524 1 0 1 1 0 8 0 zombiepl 144 1420 0 1417 1 0 1 1 0 8 0 processpl 1232 1468 0 1417 6 1 5 5 0 8 0 procpl 664 3226 0 3169 6 0 6 6 0 8 0 sosppl 168 6 0 6 3 2 1 1 0 8 1 sockpl 752 2832 0 2794 38 25 13 21 0 8 8 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 34 0 0 5 0 5 5 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 504 0 0 32 0 32 32 0 8 0 bufpl 280 11443 0 5300 439 0 439 439 0 8 0 anonpl 32 11952 0 0 97 0 97 97 0 246 0 amapchunkpl 152 40629 0 40118 43 10 33 37 0 158 8 amappl16 200 5221 0 5183 47 32 15 27 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 130 0 117 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2133 0 2101 3 1 2 2 0 8 0 amappl11 160 60 0 45 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 272 0 271 2 1 1 1 0 8 0 amappl8 136 32 0 29 1 0 1 1 0 8 0 amappl7 128 119 0 105 1 0 1 1 0 8 0 amappl6 120 217 0 212 1 0 1 1 0 8 0 amappl5 112 147 0 137 1 0 1 1 0 8 0 amappl4 104 312 0 293 1 0 1 1 0 8 0 amappl3 96 7036 0 6937 3 0 3 3 0 8 0 amappl2 88 1716 0 1631 3 0 3 3 0 8 0 amappl1 80 13816 0 13127 16 0 16 16 0 8 0 amappl 88 11172 0 11000 5 0 5 5 0 92 0 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 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 3 3 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 41 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1443 0 1411 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1443 0 1411 1 0 1 1 0 8 0 vmmpekpl 168 13143 0 13092 3 0 3 3 0 8 0 vmmpepl 168 97213 0 95071 121 8 113 113 0 357 10 vmsppl 488 1442 0 1411 5 0 5 5 0 8 0 rwobjpl 80 31973 0 26506 113 0 113 113 0 8 1 pdppl 4096 2894 0 2822 108 32 76 86 0 8 4 pvpl 32 19382 0 0 158 2 156 156 0 265 0 pmappl 256 1442 0 1411 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 322 0 48 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: 0x7f73e5f744d0, 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:662 comcnputc(800,3e) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,3e) at comcnputc+0xd0 sys/dev/ic/com.c:1259 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(ffffffff8331303d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d213b) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c4857f0,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c4857f0) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:489 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000146b000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 end trace frame: 0xffff80003c485920, 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:662 comcnputc(800,3e) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,3e) at comcnputc+0xd0 sys/dev/ic/com.c:1259 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(ffffffff8331303d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d213b) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c4857f0,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c4857f0) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:489 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000146b000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff800032fe22b8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800032fe22b8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4859a0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d300480,81,fffffd80097fb208,ffff800032fe22b8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80645c72e0,ffff800032fe22b8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80645c72e0,ffff800032fe22b8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80645c72e0,ffff800032fe22b8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80645c72e0,ffff800032fe22b8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032fe22b8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032fe22b8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032fe22b8,ffff80003c485d10,ffff80003c485c60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c485d10) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c485d10) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75a9fea27600, count: -25