*cpu1: uvm_fault(0xfffffd806ca975d8, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0xae2d05c89d0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c4354b0 rbx 0 rdx 0 rcx 0xffff800037fe3a10 rax 0x2a r8 0xffff80003c4353e0 r9 0x2 r10 0xaf34ed05da2c1b5c r11 0x9fadc93eab834fda r12 0 r13 0 r14 0 r15 0 rip 0xffffffff814cd4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c435430 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=491231 pid=83063 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037fe3248,0xffff800037fe3cb8 process=0xffff8000fffe89b8 user=0xffff80003c430000, vmspace=0xfffffd806ca97208 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47924 354656 15758 0 2 0 syz-executor 83063 518326 92333 0 2 0 syz-executor *83063 491231 92333 0 7 0x4000000 syz-executor 92880 358211 74591 0 2 0 syz-executor 46074 468264 44053 0 2 0 syz-executor 46074 79859 44053 0 3 0x4000080 sbwait syz-executor 46074 504460 44053 0 3 0x4000080 sbwait syz-executor 46074 456399 44053 0 2 0x4000000 syz-executor 25060 438946 5253 0 3 0x3000 suspend syz-executor 25060 206429 5253 0 3 0x4081000 biowait syz-executor 12394 410007 45704 0 3 0x3000 suspend syz-executor 12394 183252 45704 0 3 0x4081000 biowait syz-executor 12394 142075 45704 0 3 0x4081000 inode syz-executor 94599 333422 0 0 3 0x14200 acct acct 92333 465325 20588 0 3 0x82 nanoslp syz-executor 52322 392067 20588 0 3 0x2 biowait syz-executor 44053 507937 20588 0 3 0x82 nanoslp syz-executor 45704 77457 20588 0 2 0x2 syz-executor 74591 84617 20588 0 2 0x2 syz-executor 15758 182036 20588 0 3 0x82 nanoslp syz-executor 67563 116854 20588 0 2 0x2 syz-executor 5253 299131 20588 0 2 0x2 syz-executor 20588 146060 53999 0 3 0x82 kqread syz-executor 53999 519901 84999 0 3 0x10008a sigsusp ksh 84999 22742 15951 0 3 0x98 kqread sshd-session 15951 126434 99065 0 3 0x92 kqread sshd-session 36051 21794 1 0 3 0x100083 ttyin getty 99065 339725 1 0 3 0x88 kqread sshd 88792 463310 23933 74 3 0x1100092 bpf pflogd 23933 289578 1 0 3 0x80 sbwait pflogd 53482 40286 75666 73 3 0x1100090 kqread syslogd 75666 262267 1 0 3 0x100082 sbwait syslogd 99636 499115 1 0 3 0x100080 kqread resolvd 7059 128053 77049 77 3 0x100092 kqread dhcpleased 16107 448690 77049 77 3 0x100092 kqread dhcpleased 77049 422035 1 0 3 0x80 kqread dhcpleased 82552 89959 0 0 3 0x14200 bored smr 90981 510434 0 0 2 0x14200 zerothread 50384 36390 0 0 3 0x14200 aiodoned aiodoned 78086 315978 0 0 3 0x14200 syncer update 87042 370691 0 0 3 0x14200 cleaner cleaner 31433 482306 0 0 3 0x14200 reaper reaper 91121 150942 0 0 3 0x14200 pgdaemon pagedaemon 43202 33985 0 0 3 0x14200 bored viomb 53488 250479 0 0 3 0x40014200 acpi0 acpi0 25543 426959 0 0 3 0x40014200 idle1 10838 460221 0 0 3 0x14200 bored softnet1 48998 39617 0 0 3 0x14200 bored softnet0 87073 253176 0 0 3 0x14200 bored systqmp 82733 488523 0 0 3 0x14200 bored systq 1656 66937 0 0 3 0x14200 tmoslp softclockmp 88604 381404 0 0 3 0x40014200 tmoslp softclock 64986 90380 0 0 3 0x40014200 idle0 1 40586 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex rwobjpl r = 0 (0xffffffff838c1928) #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 pool_get+0x124 sys/kern/subr_pool.c:581 #4 _rw_obj_alloc_flags+0x4d sys/kern/kern_rwlock.c:713 #5 amap_alloc+0xd6 sys/uvm/uvm_amap.c:-1 #6 amap_copy+0x6ac sys/uvm/uvm_amap.c:569 #7 uvm_fault_check+0x483 sys/uvm/uvm_fault.c:753 #8 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #9 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #10 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #11 recall_trap+0x8 Process 83063 (syz-executor) thread 0xffff800037fe3a10 (491231) exclusive rwlock vmmaplk r = 0 (0xfffffd806ca97308) #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 rwobjpl r = 0 (0xffffffff838c1928) #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 pool_get+0x124 sys/kern/subr_pool.c:581 #4 _rw_obj_alloc_flags+0x4d sys/kern/kern_rwlock.c:713 #5 amap_alloc+0xd6 sys/uvm/uvm_amap.c:-1 #6 amap_copy+0x6ac sys/uvm/uvm_amap.c:569 #7 uvm_fault_check+0x483 sys/uvm/uvm_fault.c:753 #8 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #9 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #10 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #11 recall_trap+0x8 Process 25060 (syz-executor) thread 0xffff800037fe4558 (206429) exclusive rrwlock inode r = 0 (0xfffffd806ecfaef0) #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 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 12394 (syz-executor) thread 0xffff8000fffef4d8 (183252) exclusive rrwlock inode r = 0 (0xfffffd806e897b60) #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 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 52322 (syz-executor) thread 0xffff8000fffeea78 (392067) exclusive rrwlock inode r = 0 (0xfffffd806c58dc70) #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 (0xfffffd806c58dec0) #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 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 11059K 11788K 166960K 11924 0 pcb 19 16K 18K 166960K 309 0 rtable 236 10K 10K 166960K 442 0 pf 36 18K 22K 166960K 131 0 ifaddr 39 7K 8K 166960K 86 0 ifgroup 56 2K 2K 166960K 144 0 sysctl 4 1K 9K 166960K 8 0 counters 68 36K 38K 166960K 332 0 ioctlops 0 0K 4K 166960K 1718 0 iov 0 0K 16K 166960K 37 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1395 88K 88K 166960K 1882 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 27 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 716 0 sigio 0 0K 0K 166960K 4 0 proc 72 115K 163K 166960K 587 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 85 0 in_multi 88 6K 7K 166960K 121 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 547 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 243 160K 169K 166960K 8477 0 UVM aobj 12 6K 6K 166960K 12 0 pinsyscall 42 84K 106K 166960K 1858 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 81 0 NDP 11 0K 2K 166960K 61 0 temp 51 8669K 8741K 166960K 31679 0 kqueue 13 20K 29K 166960K 178 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 91 0 87 1 0 1 1 0 8 0 rtentry 176 121 0 21 6 0 6 6 0 8 0 unpcb 144 545 0 521 6 5 1 6 0 8 0 syncache 336 7 0 7 3 2 1 1 0 8 1 tcpcb 736 387 0 383 10 5 5 7 0 8 4 arp 136 18 0 2 1 0 1 1 0 8 0 inpcb 328 1088 0 1078 19 10 9 13 0 8 7 nd6 152 24 0 3 1 0 1 1 0 8 0 pkpcb 40 68 0 68 2 2 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 126 0 126 1 0 1 1 0 8 1 pppxif 1504 4 0 4 1 1 0 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 7 0 1 1 0 1 1 0 482 0 pffrnode 88 7 0 1 1 0 1 1 0 8 0 pffrent 40 84 0 78 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 pfrktable 1344 3 0 3 2 1 1 1 0 8 1 pftag 88 2 0 2 1 1 0 1 0 8 0 pfstitem 24 66 0 18 1 0 1 1 0 8 0 pfstkey 128 70 0 23 2 0 2 2 0 8 0 pfstate 448 67 0 20 6 0 6 6 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 481 0 73 29 1 28 29 0 8 0 art_table 40 483 0 73 5 0 5 5 0 8 0 art_node 32 121 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 23 0 13 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2822 0 1317 96 0 96 96 0 8 0 ffsino 296 2822 0 1317 117 0 117 117 0 8 0 nchpl 144 3806 0 2109 64 0 64 64 0 8 0 rtmask 32 20 0 20 1 0 1 1 0 8 1 vnodes 216 3146 0 0 175 0 175 175 0 8 0 namei 1024 12376 0 12376 1 0 1 1 0 8 1 percpumem 16 181 0 132 1 0 1 1 0 8 0 vcpupl 3968 2 0 0 1 0 1 1 0 8 0 vmpool 840 2 0 0 1 0 1 1 0 8 0 kstatmem 264 92 0 68 3 0 3 3 0 8 1 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 20664 0 20661 10 2 8 8 1 8 7 plimitpl 152 175 0 156 1 0 1 1 0 8 0 sigapl 424 1031 0 983 7 1 6 7 0 8 0 knotepl 120 558 0 0 17 0 17 17 0 8 0 kqueuepl 224 281 0 272 3 1 2 2 0 8 1 pipepl 344 192 0 164 6 3 3 6 0 8 0 fdescpl 528 1012 0 981 3 0 3 3 0 8 0 filepl 160 5859 0 5631 20 4 16 16 0 8 6 lockfpl 104 286 0 283 2 1 1 2 0 8 0 lockfspl 48 70 0 67 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 39 0 22 1 0 1 1 0 8 0 ucredpl 104 687 0 674 1 0 1 1 0 8 0 zombiepl 144 986 0 983 1 0 1 1 0 8 0 processpl 1232 1031 0 983 5 1 4 5 0 8 0 procpl 664 2009 0 1954 6 0 6 6 0 8 0 sosppl 176 14 0 14 2 1 1 1 0 8 1 sockpl 752 1814 0 1776 32 21 11 18 0 8 7 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 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 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 57 0 0 8 0 8 8 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 225 0 0 14 0 14 14 0 8 0 bufpl 280 8072 0 1936 439 0 439 439 0 8 0 anonpl 32 13418 0 0 109 0 109 109 0 246 0 amapchunkpl 152 28398 0 27848 38 7 31 33 0 158 5 amappl16 200 3987 0 3728 36 10 26 26 0 8 1 amappl15 192 33 0 33 1 1 0 1 0 8 0 amappl14 184 9 0 8 1 0 1 1 0 8 0 amappl13 176 480 0 479 1 0 1 1 0 8 0 amappl12 168 1379 0 1339 3 0 3 3 0 8 0 amappl11 160 9 0 9 2 1 1 1 0 8 1 amappl10 152 52 0 38 1 0 1 1 0 8 0 amappl9 144 251 0 251 1 1 0 1 0 8 0 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 92 0 91 1 0 1 1 0 8 0 amappl6 120 354 0 341 1 0 1 1 0 8 0 amappl5 112 80 0 70 1 0 1 1 0 8 0 amappl4 104 432 0 400 1 0 1 1 0 8 0 amappl3 96 4664 0 4576 4 1 3 3 0 8 0 amappl2 88 1184 0 1110 2 0 2 2 0 8 0 amappl1 80 12431 0 11840 16 2 14 15 0 8 0 amappl 88 7616 0 7451 5 0 5 5 0 92 0 uvmvnodes 80 135 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 1 0 1 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 7 0 7 2 2 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 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1012 0 981 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1012 0 981 1 0 1 1 0 8 0 vmmpekpl 168 9829 0 9790 2 0 2 2 0 8 0 vmmpepl 168 72125 0 69971 108 0 108 108 0 357 0 vmsppl 488 1011 0 981 6 2 4 5 0 8 0 rwobjpl 80 22410 0 21107 32 0 32 32 0 8 0 pdppl 4096 2036 0 1964 103 29 74 86 0 8 2 pvpl 32 21990 0 0 178 0 178 178 0 265 0 pmappl 256 1013 0 981 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 304 0 40 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: 0xae2d05c89d0, 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_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,d) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,d) at comcnputc+0xd0 sys/dev/ic/com.c:1259 db_putchar(a) at db_putchar+0x498 sys/ddb/db_output.c:168 kprintf() at kprintf+0x203 sys/kern/subr_prf.c:723 db_printf(ffffffff8334ebe6) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83413c02) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c3f7ee0,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c3f7ee0) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000149c000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff800037fe54e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800037fe54e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 end trace frame: 0xffff80003c3f8080, 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_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,d) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,d) at comcnputc+0xd0 sys/dev/ic/com.c:1259 db_putchar(a) at db_putchar+0x498 sys/ddb/db_output.c:168 kprintf() at kprintf+0x203 sys/kern/subr_prf.c:723 db_printf(ffffffff8334ebe6) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83413c02) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c3f7ee0,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c3f7ee0) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000149c000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff800037fe54e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff800037fe54e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c3f8090) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d707028,81,fffffd80097fd2d8,ffff800037fe54e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c90b720,ffff800037fe54e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c90b720,ffff800037fe54e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c90b720,ffff800037fe54e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c90b720,ffff800037fe54e8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800037fe54e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800037fe54e8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800037fe54e8,ffff80003c3f8400,ffff80003c3f8350) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3f8400) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f8400) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730893d095d0, count: -24