*cpu1: uvm_fault(0xfffffd806bbe63b0, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x77b7504f9040, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000334a6f00 rbx 0 rdx 0 rcx 0xffff8000ffff6cf0 rax 0x2a r8 0xffff8000334a6e30 r9 0x1 r10 0xe051c7a6e2fd8384 r11 0x9e41df34bb84b6f6 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff827804c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000334a6e80 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=97948 pid=67396 tcnt=2 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=0xffff80003c5074a8,0xffff8000ffff79d0 process=0xffff80003b4d9280 user=0xffff8000334a1000, vmspace=0xfffffd806bbe6578 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48657 379772 62775 0 2 0 syz-executor *67396 97948 7922 0 7 0 syz-executor 67396 54045 7922 0 2 0x4000000 syz-executor 80474 378222 66058 0 2 0 syz-executor 80474 24172 66058 0 3 0x4000080 fsleep syz-executor 42305 126420 91316 0 3 0x80 nanoslp syz-executor 42305 352320 91316 0 3 0x4000080 lockf syz-executor 42305 89176 91316 0 3 0x4000080 fsleep syz-executor 29251 48982 0 0 3 0x14200 bored sosplice 90408 197633 12264 0 3 0x2 biowait syz-executor 28926 229462 12264 0 3 0x82 nanoslp syz-executor 7922 431339 12264 0 3 0x82 nanoslp syz-executor 91316 48326 12264 0 3 0x82 nanoslp syz-executor 63694 95437 12264 0 3 0x2 biowait syz-executor 66058 378136 12264 0 2 0x2 syz-executor 33140 152453 12264 0 3 0x82 nanoslp syz-executor 62775 300100 12264 0 3 0x82 nanoslp syz-executor 12264 392756 43124 0 2 0x2 syz-executor 43124 193575 29387 0 3 0x10008a sigsusp ksh 29387 350438 68645 0 3 0x98 kqread sshd-session 68645 447870 65287 0 3 0x92 kqread sshd-session 40470 492634 1 0 3 0x100083 ttyin getty 65287 482291 1 0 3 0x88 kqread sshd 58558 219501 34633 74 3 0x1100092 bpf pflogd 34633 147001 1 0 3 0x80 sbwait pflogd 35238 350501 17645 73 3 0x1100090 kqread syslogd 17645 239404 1 0 3 0x100082 sbwait syslogd 59406 63859 1 0 3 0x100080 kqread resolvd 82721 463906 70094 77 3 0x100092 kqread dhcpleased 95530 196247 70094 77 3 0x100092 kqread dhcpleased 70094 442011 1 0 3 0x80 kqread dhcpleased 5037 71215 0 0 3 0x14200 bored smr 1333 414507 0 0 2 0x14200 zerothread 7854 43586 0 0 3 0x14200 aiodoned aiodoned 77636 57687 0 0 3 0x14200 syncer update 9859 363132 0 0 3 0x14200 cleaner cleaner 13792 1227 0 0 3 0x14200 reaper reaper 20486 5058 0 0 3 0x14200 pgdaemon pagedaemon 17574 400460 0 0 3 0x14200 bored viomb 31927 421271 0 0 3 0x40014200 acpi0 acpi0 61339 30604 0 0 3 0x40014200 idle1 68633 295944 0 0 3 0x14200 bored softnet3 14937 688 0 0 3 0x14200 bored softnet2 50027 385078 0 0 3 0x14200 bored softnet1 3705 88595 0 0 3 0x14200 bored softnet0 2718 210057 0 0 3 0x14200 bored systqmp 39902 25277 0 0 3 0x14200 bored systq 56760 147416 0 0 3 0x14200 tmoslp softclockmp 68302 56159 0 0 3 0x40014200 tmoslp softclock 79358 288297 0 0 3 0x40014200 idle0 1 263371 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 (0xfffffd806bbe5ea8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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+0x86 sys/uvm/uvm_fault.c:1310 #6 uvm_fault+0x272 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 67396 (syz-executor) thread 0xffff8000ffff6cf0 (97948) exclusive rwlock uobjlk r = 0 (0xfffffd80710a64e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_fault_lower_lookup+0x53 sys/uvm/uvm_fault.c:1173 #3 uvm_fault_lower+0x86 sys/uvm/uvm_fault.c:1310 #4 uvm_fault+0x272 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 (0xfffffd806bbe6678) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1860 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:730 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #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 (0xfffffd806bbe5ea8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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+0x86 sys/uvm/uvm_fault.c:1310 #6 uvm_fault+0x272 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 90408 (syz-executor) thread 0xffff80002a2f9c38 (197633) exclusive rrwlock inode r = 0 (0xfffffd806366c2d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #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:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c012770) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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:1866 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 63694 (syz-executor) thread 0xffff80002a391728 (95437) exclusive rrwlock inode r = 0 (0xfffffd806dce0510) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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:3117 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cc4a998) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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:3102 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11207K 11358K 166960K 11568 0 pcb 17 12K 12K 166960K 39 0 rtable 241 7K 7K 166960K 361 0 pf 35 17K 18K 166960K 57 0 ifaddr 43 7K 7K 166960K 52 0 ifgroup 55 2K 2K 166960K 68 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 37K 166960K 82 0 ioctlops 0 0K 4K 166960K 1499 0 iov 0 0K 2K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1413 89K 89K 166960K 1577 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 273 0 sigio 0 0K 0K 166960K 1 0 proc 72 91K 128K 166960K 558 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 15 0 in_multi 99 7K 7K 166960K 106 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 384 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 233 171K 179K 166960K 4229 0 UVM aobj 6 2K 2K 166960K 7 0 pinsyscall 41 82K 106K 166960K 1381 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 12 0K 1K 166960K 33 0 temp 37 8678K 8746K 166960K 7167 0 kqueue 13 20K 30K 166960K 52 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 38 0 35 1 0 1 1 0 8 0 rtentry 168 112 0 1 5 0 5 5 0 8 0 unpcb 144 115 0 98 2 0 2 2 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 111 0 107 4 0 4 4 0 8 3 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 376 419 0 412 11 0 11 11 0 8 10 nd6 136 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 8 0 8 1 0 1 1 0 8 1 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 31 0 0 1 0 1 1 0 8 0 pfstkey 128 31 0 0 1 0 1 1 0 8 0 pfstate 376 31 0 0 4 0 4 4 0 8 0 pfrule 1344 22 0 16 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 454 0 0 29 0 29 29 0 8 0 art_table 32 455 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 1 0 1 1 0 8 0 semapl 112 4 0 3 1 0 1 1 0 8 0 shmpl 112 4 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1817 0 308 95 0 95 95 0 8 0 ffsino 280 1817 0 308 109 0 109 109 0 8 0 nchpl 144 2190 0 503 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2072 0 0 43 0 43 43 0 8 0 vnodes 216 2072 0 0 116 0 116 116 0 8 0 namei 1024 7315 0 7314 2 0 2 2 0 8 1 percpumem 16 55 0 9 1 0 1 1 0 8 0 kstatmem 264 34 0 10 2 0 2 2 0 8 0 scxspl 216 6967 0 6965 3 2 1 2 1 8 0 plimitpl 152 142 0 124 1 0 1 1 0 8 0 sigapl 424 581 0 532 7 0 7 7 0 8 1 futexpl 64 2121 0 2119 1 0 1 1 0 8 0 knotepl 120 529 0 0 17 0 17 17 0 8 0 kqueuepl 216 93 0 84 3 0 3 3 0 8 2 pipepl 328 114 0 87 3 0 3 3 0 8 0 fdescpl 504 562 0 532 5 0 5 5 0 8 0 filepl 152 2560 0 2339 14 0 14 14 0 8 3 lockfpl 104 52 0 48 1 0 1 1 0 8 0 lockfspl 48 22 0 19 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 104 254 0 241 1 0 1 1 0 8 0 zombiepl 144 534 0 532 1 0 1 1 0 8 0 processpl 1176 581 0 532 5 0 5 5 0 8 0 procpl 656 841 0 788 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 688 575 0 548 12 0 12 12 0 8 9 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 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 22 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 162 0 0 11 0 11 11 0 8 0 bufpl 280 2563 0 123 175 0 175 175 0 8 0 anonpl 24 112093 0 108899 49 4 45 45 0 184 22 amapchunkpl 152 12340 0 11883 22 0 22 22 0 158 2 amappl16 200 2236 0 2213 16 6 10 14 0 8 8 amappl15 192 46 0 46 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1217 0 1187 3 1 2 2 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 5 0 5 2 2 0 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 30 0 28 1 0 1 1 0 8 0 amappl7 128 109 0 97 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 126 0 116 1 0 1 1 0 8 0 amappl4 104 322 0 302 1 0 1 1 0 8 0 amappl3 96 2201 0 2094 4 0 4 4 0 8 0 amappl2 88 640 0 577 2 0 2 2 0 8 0 amappl1 80 8697 0 8104 15 0 15 15 0 8 2 amappl 88 3513 0 3356 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 128 253 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 6 0 1 1 0 1 1 0 8 0 uaddrrnd 24 562 0 532 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 562 0 532 1 0 1 1 0 8 0 vmmpekpl 168 6323 0 6285 2 0 2 2 0 8 0 vmmpepl 168 41786 0 39901 98 0 98 98 0 357 9 vmsppl 456 561 0 532 5 0 5 5 0 8 1 rwobjpl 64 16201 0 13217 49 0 49 49 0 8 0 pdppl 4096 1132 0 1064 102 30 72 86 0 8 4 pvpl 32 13197 0 0 107 0 107 107 0 265 0 pmappl 248 561 0 532 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 280 0 33 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: 0x77b7504f9040, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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:666 acpitimer_delay(1) at acpitimer_delay+0x175 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x175 sys/dev/acpi/acpitimer.c:125 comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833f0cec) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8339484e) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff800036cc3c80,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff800036cc3c80) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff800036cc3d60, count: 0 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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:666 acpitimer_delay(1) at acpitimer_delay+0x175 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x175 sys/dev/acpi/acpitimer.c:125 comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833f0cec) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8339484e) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff800036cc3c80,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff800036cc3c80) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001496000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(31e5f,81,2000,ffff8000ffff62b0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff8000ffff62b0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff800036cc3e30) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80605c6b30,81,fffffd807f7d2410,ffff8000ffff62b0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bd5e3a8,ffff8000ffff62b0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bd5e3a8,ffff8000ffff62b0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bd5e3a8,ffff8000ffff62b0) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd806bd5e3a8,ffff8000ffff62b0) at closef+0x192 sys/kern/kern_descrip.c:1249 fdfree(ffff8000ffff62b0) at fdfree+0x116 sys/kern/kern_descrip.c:1181 exit1(ffff8000ffff62b0,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000ffff62b0,ffff800036cc41a0,ffff800036cc40f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800036cc41a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800036cc41a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7490152b38b0, count: -26