*cpu1: uvm_fault(0xfffffd80605561c8, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7779ce767e10, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000371dfdf0 rbx 0 rdx 0 rcx 0xffff8000371cf6f0 rax 0x2a r8 0xffff8000371dfd20 r9 0x55db1e02001 r10 0xd1c3073caab62831 r11 0x874785b9fe9b7b8 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8298f4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000371dfd70 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=142004 pid=45546 tcnt=1 stat=onproc flags process=8000010 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371cf978,0xffffffff835e9078 process=0xffff8000372071d8 user=0xffff8000371da000, vmspace=0xfffffd8060556a60 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *45546 142004 82498 32767 7 0x8000010 syz-executor 94977 252289 21985 32767 2 0x8000010 syz-executor 94977 187831 21985 32767 3 0xc000090 fsleep syz-executor 37006 297465 97372 32767 2 0x8000010 syz-executor 37006 299697 97372 32767 7 0xc000010 syz-executor 58444 54738 3548 32767 2 0x8000010 syz-executor 58444 518232 3548 32767 3 0xc000090 fsleep syz-executor 52116 454763 67373 32767 3 0x8000090 nanoslp syz-executor 52116 202233 67373 32767 3 0xc000090 sbwait syz-executor 52116 416407 67373 32767 3 0xc000090 fsleep syz-executor 97372 81686 96250 32767 3 0x8000090 nanoslp syz-executor 96250 249694 27777 0 3 0x8000082 wait syz-executor 12769 2249 3839 32767 3 0x8000090 nanoslp syz-executor 12769 300984 3839 32767 3 0xc000090 nanoslp syz-executor 12769 311903 3839 32767 3 0xc000090 fsleep syz-executor 3548 507469 19520 32767 3 0x8000090 nanoslp syz-executor 82498 421822 74933 32767 3 0x8000090 nanoslp syz-executor 21985 268082 31242 32767 3 0x8000090 nanoslp syz-executor 66296 109174 58949 32767 3 0x8000090 nanoslp syz-executor 67373 103563 71793 32767 3 0x8000090 nanoslp syz-executor 58949 59970 27777 0 3 0x8000082 wait syz-executor 19520 391604 27777 0 3 0x8000082 wait syz-executor 31242 3645 27777 0 3 0x8000082 wait syz-executor 74933 112622 27777 0 3 0x8000082 wait syz-executor 71793 283584 27777 0 3 0x8000082 wait syz-executor 3839 485563 38825 32767 3 0x8000090 nanoslp syz-executor 4414 279389 98276 32767 3 0x8000010 biowait syz-executor 98276 348229 27777 0 3 0x8000082 wait syz-executor 38825 201583 27777 0 3 0x8000082 wait syz-executor 13146 376116 0 0 3 0x14200 bored sosplice 27777 246300 4371 0 3 0x8000082 kqread syz-executor 4371 407455 15270 0 3 0x810008a sigsusp ksh 15270 112766 90617 0 3 0x18000098 kqread sshd-session 90617 201823 22997 0 3 0x18000092 kqread sshd-session 3218 413456 1 0 3 0x18100083 ttyin getty 22997 448880 1 0 3 0x18000088 kqread sshd 1611 242471 30912 73 3 0x19100010 ffs_fsync syslogd 30912 474738 1 0 3 0x18100082 sbwait syslogd 56609 443113 1 0 3 0x18100080 kqread resolvd 27502 294321 62908 77 3 0x18100092 kqread dhcpleased 82395 204579 62908 77 3 0x18100092 kqread dhcpleased 62908 188780 1 0 3 0x18000080 kqread dhcpleased 92830 393401 0 0 3 0x14200 bored smr 56152 51495 0 0 3 0x14200 pgzero zerothread 38196 169069 0 0 3 0x14200 aiodoned aiodoned 19808 1253 0 0 3 0x14200 syncer update 59403 337134 0 0 3 0x14200 cleaner cleaner 34906 101925 0 0 3 0x14200 reaper reaper 51296 519739 0 0 3 0x14200 pgdaemon pagedaemon 90482 395318 0 0 3 0x14200 bored viomb 11049 218314 0 0 3 0x40014200 acpi0 acpi0 61104 383929 0 0 3 0x40014200 idle1 26654 177368 0 0 3 0x14200 bored softnet3 66625 319021 0 0 3 0x14200 bored softnet2 83052 260827 0 0 3 0x14200 bored softnet1 17382 390231 0 0 3 0x14200 bored softnet0 84093 490343 0 0 3 0x14200 bored systqmp 15865 451911 0 0 3 0x14200 bored systq 2116 192457 0 0 3 0x14200 tmoslp softclockmp 79022 452739 0 0 3 0x40014200 tmoslp softclock 76917 346202 0 0 3 0x40014200 idle0 1 395475 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd805f6c59c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_extract+0xac sys/arch/amd64/amd64/pmap.c:1565 #4 uvm_fault_upper_lookup+0x189 sys/uvm/uvm_fault.c:860 #5 uvm_fault+0x169 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 45546 (syz-executor) thread 0xffff8000371cf6f0 (142004) exclusive rwlock amaplk r = 0 (0xfffffd806dfd8328) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8060556b50) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd805f6c59c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_extract+0xac sys/arch/amd64/amd64/pmap.c:1565 #4 uvm_fault_upper_lookup+0x189 sys/uvm/uvm_fault.c:860 #5 uvm_fault+0x169 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 37006 (syz-executor) thread 0xffff8000371ce7c0 (299697) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83571d40) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ufs_direnter+0x721 sys/ufs/ufs/ufs_lookup.c:726 #8 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #9 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #10 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #11 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069b253d0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #10 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #11 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #12 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 4414 (syz-executor) thread 0xffff8000ffff6cc0 (279389) exclusive rrwlock inode r = 0 (0xfffffd8069b25700) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #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:3100 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c99e3d8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #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:3085 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 1611 (syslogd) thread 0xffff8000ffffdbe8 (242471) exclusive rrwlock inode r = 0 (0xfffffd806e351a30) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2927 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10183 10088K 10100K 166960K 11336 0 pcb 17 12K 12K 166960K 17 0 rtable 244 6K 7K 166960K 1171 0 pf 31 16K 16K 166960K 82 0 ifaddr 42 7K 7K 166960K 145 0 ifgroup 50 2K 2K 166960K 151 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 114 0 ioctlops 0 0K 2K 166960K 55 0 iov 1 2K 17K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1454 91K 91K 166960K 1792 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 39 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 25 93K 157K 166960K 791 0 sigio 0 0K 0K 166960K 2 0 proc 56 78K 176K 166960K 1170 0 subproc 104 6K 12K 166960K 429 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 354 0 in_multi 99 7K 7K 166960K 374 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 692 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 251 77K 130K 166960K 7340 0 UVM aobj 48 2K 4K 166960K 53 0 pinsyscall 46 92K 126K 166960K 2428 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 13 0K 2K 166960K 99 0 temp 75 6820K 6884K 166960K 8135 0 kqueue 13 20K 26K 166960K 63 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 120 154 0 151 2 1 1 2 0 8 0 rtentry 112 386 0 271 5 1 4 4 0 8 0 unpcb 144 362 0 343 4 3 1 4 0 8 0 syncache 336 5 0 5 2 2 0 1 0 8 0 tcpcb 808 131 0 126 2 1 1 2 0 8 0 arp 120 66 0 47 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 336 635 0 626 14 7 7 7 0 8 6 nd6 136 107 0 79 1 0 1 1 0 8 0 kcovpl 48 33 0 25 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1558 0 1083 42 12 30 30 0 8 0 art_table 32 1559 0 1083 4 0 4 4 0 8 0 art_node 16 385 0 280 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 37 0 27 1 0 1 1 0 8 0 shmpl 112 50 0 5 2 0 2 2 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2100 0 541 98 0 98 98 0 8 0 ffsino 272 2100 0 541 105 0 105 105 0 8 0 nchpl 144 2696 0 989 64 0 64 64 0 8 0 uvmvnodes 80 2538 0 0 52 0 52 52 0 8 0 vnodes 216 2538 0 0 141 0 141 141 0 8 0 namei 1024 11564 0 11562 7 5 2 2 0 8 1 percpumem 16 71 0 25 1 0 1 1 0 8 0 kstatmem 264 72 0 50 2 0 2 2 0 8 0 scxspl 216 15249 0 15247 12 9 3 8 1 8 2 plimitpl 152 265 0 238 2 0 2 2 0 8 0 sigapl 424 1021 0 965 9 0 9 9 0 8 1 futexpl 64 4947 0 4943 3 2 1 1 0 8 0 knotepl 120 342 0 0 10 0 10 10 0 8 0 kqueuepl 216 111 0 102 1 0 1 1 0 8 0 pipepl 320 376 0 349 11 3 8 8 0 8 4 fdescpl 496 1002 0 965 10 3 7 7 0 8 1 filepl 152 5214 0 4960 19 4 15 15 0 8 2 lockfpl 104 101 0 97 1 0 1 1 0 8 0 lockfspl 48 30 0 26 1 0 1 1 0 8 0 sessionpl 144 45 0 29 1 0 1 1 0 8 0 pgrppl 48 81 0 57 1 0 1 1 0 8 0 ucredpl 104 762 0 743 1 0 1 1 0 8 0 zombiepl 144 966 0 965 1 0 1 1 0 8 0 processpl 1160 1021 0 965 6 1 5 6 0 8 0 procpl 648 1546 0 1483 7 0 7 7 0 8 0 sosppl 168 6 0 6 2 2 0 1 0 8 0 sockpl 664 1167 0 1136 18 9 9 9 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 254 0 0 32 0 32 32 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 371 0 0 21 0 21 21 0 8 0 bufpl 280 5788 0 89 408 0 408 408 0 8 0 anonpl 24 230469 0 227076 75 2 73 73 0 185 39 amapchunkpl 152 23568 0 23009 45 6 39 45 0 158 15 amappl16 200 5762 0 5747 33 22 11 14 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 153 0 143 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 2000 0 1964 5 2 3 3 0 8 1 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 129 0 129 1 1 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 142 0 132 1 0 1 1 0 8 0 amappl6 120 405 0 404 1 0 1 1 0 8 0 amappl5 112 230 0 221 1 0 1 1 0 8 0 amappl4 104 357 0 343 1 0 1 1 0 8 0 amappl3 96 4529 0 4398 4 0 4 4 0 8 0 amappl2 88 930 0 874 2 0 2 2 0 8 0 amappl1 80 10877 0 10318 15 1 14 14 0 8 0 amappl 88 6803 0 6606 7 1 6 6 0 92 1 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 52 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1002 0 965 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1002 0 965 1 0 1 1 0 8 0 vmmpekpl 168 10625 0 10562 4 0 4 4 0 8 0 vmmpepl 168 69953 0 67939 109 9 100 102 0 357 8 vmsppl 440 1001 0 965 7 1 6 6 0 8 0 rwobjpl 56 26799 0 23361 51 2 49 49 0 8 0 pdppl 4096 2011 0 1930 189 104 85 113 0 8 4 pvpl 32 29567 0 0 240 1 239 239 0 265 0 pmappl 248 1001 0 965 5 1 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 523 0 133 12 0 12 12 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: 0x7779ce767e10, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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:654 comcnputc(800,3e) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,3e) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(3e) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff8308b791) at db_printf+0x9b fault(ffffffff83038bca) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a1319c0,8) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a1319c0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a131ab0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 end trace frame: 0xffff80002a131b20, count: 0 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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:654 comcnputc(800,3e) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,3e) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(3e) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff8308b791) at db_printf+0x9b fault(ffffffff83038bca) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a1319c0,8) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a1319c0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a131ab0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd807690f998,ffff80002a131b48,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd807690f998,ffff800029fe6c00,fd,0,1,f97eaae34026ea85,ffff80002a131c70,fffffd807690f998,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a131c70) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd807690fcf8,ffff80002a131df0,ffff80002a131e20,ffff80002a131d20,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce7c0,20000900,7,20000a00) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a131fa0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a131fa0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd2557054180, count: -21