*cpu1: uvm_fault(0xfffffd806bcf7980, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x73ad69e4f550, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000313e27e0 rbx 0 rdx 0 rcx 0xffff8000ffff0020 rax 0x2a r8 0xffff8000313e2710 r9 0x1 r10 0x426b548dfac31c13 r11 0xce1f51014cf38356 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff814624c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000313e2760 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=481350 pid=97775 tcnt=2 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff14a0,0xffff8000ffff1220 process=0xffff8000398165e0 user=0xffff8000313dd000, vmspace=0xfffffd806bcf7020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *97775 481350 31565 0 7 0 syz-executor 97775 164167 31565 0 3 0x4000080 fsleep syz-executor 41437 485724 73358 0 2 0 syz-executor 47276 360594 37839 0 2 0 syz-executor 47276 458128 37839 0 3 0x4000080 bell syz-executor 95495 509645 22528 0 2 0 syz-executor 95495 217596 22528 0 3 0x4000080 kqsel syz-executor 95495 159570 22528 0 3 0x4000080 fsleep syz-executor 69162 214830 81434 0 2 0 syz-executor 69162 149225 81434 0 3 0x4000080 fsleep syz-executor 8565 304608 0 0 3 0x14200 bored sosplice 37839 363634 86174 0 3 0x82 nanoslp syz-executor 70319 289768 86174 0 3 0x82 nanoslp syz-executor 49500 145183 86174 0 3 0x2 biowait syz-executor 19326 276085 86174 0 3 0x2 biowait syz-executor 22528 142624 86174 0 3 0x82 nanoslp syz-executor 31565 282667 86174 0 3 0x82 nanoslp syz-executor 73358 86415 86174 0 3 0x82 nanoslp syz-executor 81434 480164 86174 0 3 0x82 nanoslp syz-executor 86174 318101 86031 0 3 0x82 kqread syz-executor 86031 62428 82807 0 3 0x10008a sigsusp ksh 82807 448131 3628 0 3 0x98 kqread sshd-session 3628 40504 72055 0 3 0x92 kqread sshd-session 52614 321784 1 0 3 0x100083 ttyin getty 72055 387919 1 0 3 0x88 kqread sshd 43997 246987 17524 74 3 0x1100092 bpf pflogd 17524 61559 1 0 3 0x80 sbwait pflogd 21842 304808 58359 73 3 0x1100090 kqread syslogd 58359 103756 1 0 3 0x100082 sbwait syslogd 10589 327948 1 0 3 0x100080 kqread resolvd 35841 248152 54293 77 3 0x100092 kqread dhcpleased 22372 379141 54293 77 3 0x100092 kqread dhcpleased 54293 352212 1 0 3 0x80 kqread dhcpleased 93432 322024 0 0 3 0x14200 bored smr 89318 110950 0 0 2 0x14200 zerothread 80658 269704 0 0 3 0x14200 aiodoned aiodoned 77472 423356 0 0 3 0x14200 syncer update 56473 166833 0 0 3 0x14200 cleaner cleaner 17291 301388 0 0 3 0x14200 reaper reaper 69673 474691 0 0 3 0x14200 pgdaemon pagedaemon 76394 401873 0 0 3 0x14200 bored viomb 74694 254440 0 0 3 0x40014200 acpi0 acpi0 77174 116694 0 0 3 0x40014200 idle1 54 255355 0 0 3 0x14200 bored softnet3 17457 189217 0 0 3 0x14200 bored softnet2 4154 459004 0 0 3 0x14200 bored softnet1 32009 107245 0 0 3 0x14200 bored softnet0 77016 319866 0 0 3 0x14200 bored systqmp 11076 378318 0 0 3 0x14200 bored systq 58452 277320 0 0 3 0x14200 tmoslp softclockmp 10543 518388 0 0 3 0x40014200 tmoslp softclock 69984 100272 0 0 3 0x40014200 idle0 1 110041 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 (0xfffffd806bcf6010) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2770 #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+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 97775 (syz-executor) thread 0xffff8000ffff0020 (481350) exclusive rwlock uobjlk r = 0 (0xfffffd807693e150) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #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+0x278 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bcf7120) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:398 #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:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bcf6010) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2770 #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+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 49500 (syz-executor) thread 0xffff8000ffffca48 (145183) exclusive rrwlock inode r = 0 (0xfffffd806c094b00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f9a2438) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 19326 (syz-executor) thread 0xffff80002a2a5c48 (276085) exclusive rrwlock inode r = 0 (0xfffffd806982fd00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 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:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f9a20d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 11063K 11323K 166960K 11366 0 pcb 21 12K 12K 166960K 32 0 rtable 238 7K 7K 166960K 366 0 pf 34 17K 18K 166960K 50 0 ifaddr 43 7K 7K 166960K 48 0 ifgroup 55 2K 2K 166960K 62 0 sysctl 3 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 78 0 ioctlops 0 0K 4K 166960K 1491 0 iov 0 0K 4K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1351 85K 85K 166960K 1404 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 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 181 0 proc 75 103K 128K 166960K 534 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 9 0 in_multi 99 7K 7K 166960K 100 0 ether_multi 1 0K 0K 166960K 1 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 374 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 219 171K 177K 166960K 3345 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 41 82K 101K 166960K 1299 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 12 0K 2K 166960K 30 0 temp 39 8670K 8734K 166960K 6894 0 kqueue 14 22K 26K 166960K 32 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 44 0 41 1 0 1 1 0 8 0 rtentry 176 113 0 3 6 0 6 6 0 8 1 unpcb 144 59 0 40 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 18 0 14 1 0 1 1 0 8 0 arp 128 18 0 0 1 0 1 1 0 8 0 inpcb 384 104 0 93 2 0 2 2 0 8 0 nd6 144 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 4 0 4 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 384 18 0 0 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 461 0 8 29 0 29 29 0 8 0 art_table 32 462 0 8 4 0 4 4 0 8 0 art_node 16 112 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1635 0 121 95 0 95 95 0 8 0 ffsino 288 1635 0 121 109 0 109 109 0 8 0 nchpl 144 1877 0 189 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 1750 0 0 36 0 36 36 0 8 0 vnodes 216 1750 0 0 98 0 98 98 0 8 0 namei 1024 5788 0 5787 2 0 2 2 0 8 1 percpumem 16 54 0 5 1 0 1 1 0 8 0 kstatmem 264 30 0 4 2 0 2 2 0 8 0 scxspl 216 6165 0 6163 3 2 1 2 1 8 0 plimitpl 152 65 0 48 1 0 1 1 0 8 0 sigapl 424 492 0 443 7 0 7 7 0 8 1 knotepl 120 310 0 0 10 0 10 10 0 8 0 kqueuepl 224 37 0 25 1 0 1 1 0 8 0 pipepl 336 106 0 79 3 0 3 3 0 8 0 fdescpl 520 473 0 443 3 0 3 3 0 8 0 filepl 160 1681 0 1456 10 0 10 10 0 8 0 lockfpl 104 14 0 12 1 0 1 1 0 8 0 lockfspl 48 8 0 6 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 112 0 99 1 0 1 1 0 8 0 zombiepl 144 444 0 443 1 0 1 1 0 8 0 processpl 1208 492 0 443 5 0 5 5 0 8 0 procpl 656 571 0 517 6 0 6 6 0 8 0 sockpl 728 208 0 175 4 0 4 4 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 173 0 0 11 0 11 11 0 8 0 bufpl 280 2382 0 123 162 0 162 162 0 8 0 anonpl 32 5401 0 0 45 1 44 45 0 246 0 amapchunkpl 152 9514 0 9091 23 0 23 23 0 158 2 amappl16 200 1860 0 1841 5 2 3 5 0 8 1 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 117 0 105 1 0 1 1 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 1132 0 1103 4 1 3 3 0 8 1 amappl11 160 91 0 77 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 248 0 247 1 0 1 1 0 8 0 amappl8 136 32 0 29 1 0 1 1 0 8 0 amappl7 128 110 0 98 1 0 1 1 0 8 0 amappl6 120 183 0 180 1 0 1 1 0 8 0 amappl5 112 121 0 112 1 0 1 1 0 8 0 amappl4 104 339 0 319 1 0 1 1 0 8 0 amappl3 96 1606 0 1508 5 1 4 4 0 8 0 amappl2 88 640 0 580 2 0 2 2 0 8 0 amappl1 80 8511 0 7912 14 0 14 14 0 8 1 amappl 88 2638 0 2493 4 0 4 4 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 473 0 443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 473 0 443 1 0 1 1 0 8 0 vmmpekpl 168 5549 0 5509 2 0 2 2 0 8 0 vmmpepl 168 36888 0 35010 88 0 88 88 0 357 1 vmsppl 480 472 0 443 5 0 5 5 0 8 1 rwobjpl 72 14649 0 12002 49 0 49 49 0 8 0 pdppl 4096 954 0 886 102 28 74 86 0 8 6 pvpl 32 11679 0 0 95 0 95 95 0 265 0 pmappl 256 472 0 443 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 384 0 30 11 0 11 11 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: 0x73ad69e4f550, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,20) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,20) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(20) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x524 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(30) at db_putchar+0x524 sys/ddb/db_output.c:153 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff83400b6a) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833a84d1) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff8000357fa800,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff8000357fa800) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001497000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 end trace frame: 0xffff8000357fa930, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,20) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,20) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(20) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x524 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(30) at db_putchar+0x524 sys/ddb/db_output.c:153 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff83400b6a) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833a84d1) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff8000357fa800,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff8000357fa800) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001497000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(11e5f,81,2000,ffff8000ffff0f80) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000ffff0f80) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000357fa9b0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806850bda8,81,fffffd807f7d33a8,ffff8000ffff0f80) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80690a72c8,ffff8000ffff0f80) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80690a72c8,ffff8000ffff0f80) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80690a72c8,ffff8000ffff0f80) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd80690a72c8,ffff8000ffff0f80) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000ffff0f80) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000ffff0f80,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000ffff0f80,ffff8000357fad20,ffff8000357fac70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000357fad20) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000357fad20) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x724a11fd67e0, count: -25