*cpu1: uvm_fault(0xfffffd806a920180, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x7f7ffffc35f0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002e46c4f0 rbx 0 rdx 0 rcx 0 rax 0x2a r8 0xffff80002e46c420 r9 0 r10 0xe6a2410a29f89c4b r11 0xdbf00106b2190eaa r12 0 r13 0 r14 0 r15 0 rip 0xffffffff819d54e6 proc_trampoline+0xd6 cs 0x8 rflags 0x246 rsp 0xffff80002e46c470 ss 0 proc_trampoline+0xd6: movl $0,%gs:0x540 ddb{0}> show proc PROC (syz-executor.5) pid=96820 stat=onproc flags process=0 proc=0 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000212ee7f0,0xffff8000212ee560 process=0xffff8000ffff1d30 user=0xffff80002e467000, vmspace=0xfffffd806a9208b0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98520 232621 3923 0 2 0 syz-executor.1 98382 170912 48400 0 2 0 syz-executor.4 *39002 96820 5060 0 7 0 syz-executor.5 4319 221640 7114 0 2 0 syz-executor.0 45649 174376 25349 0 2 0 syz-executor.2 45649 415708 25349 0 7 0x4000000 syz-executor.2 55437 150632 4814 0 2 0 syz-executor.6 55437 435285 4814 0 3 0x4000080 fsleep syz-executor.6 3923 426498 81302 0 2 0x2 syz-executor.1 78446 518642 0 0 3 0x14200 acct acct 7114 427129 81302 0 3 0x82 nanoslp syz-executor.0 97965 24070 0 0 3 0x14200 bored sosplice 5060 471937 81302 0 3 0x82 nanoslp syz-executor.5 92248 331180 1 0 3 0x100083 ttyin getty 29660 406778 81302 0 3 0x2 biowait syz-executor.7 4814 348184 81302 0 3 0x82 nanoslp syz-executor.6 48400 124708 81302 0 3 0x82 nanoslp syz-executor.4 31086 213447 81302 0 2 0x2 syz-executor.3 25349 204297 81302 0 3 0x82 nanoslp syz-executor.2 81302 269166 32703 0 3 0x82 thrsleep syz-fuzzer 81302 7147 32703 0 3 0x4000082 nanoslp syz-fuzzer 81302 21736 32703 0 3 0x4000082 thrsleep syz-fuzzer 81302 253895 32703 0 3 0x4000082 wait syz-fuzzer 81302 195067 32703 0 3 0x4000082 thrsleep syz-fuzzer 81302 129322 32703 0 3 0x4000082 wait syz-fuzzer 81302 69367 32703 0 3 0x4000082 thrsleep syz-fuzzer 81302 40739 32703 0 3 0x4000082 wait syz-fuzzer 81302 519998 32703 0 3 0x4000082 thrsleep syz-fuzzer 81302 515022 32703 0 3 0x4000082 wait syz-fuzzer 81302 258974 32703 0 3 0x4000082 wait syz-fuzzer 81302 19150 32703 0 3 0x4000082 wait syz-fuzzer 81302 387045 32703 0 3 0x4000082 wait syz-fuzzer 81302 249142 32703 0 3 0x4000082 wait syz-fuzzer 81302 363526 32703 0 3 0x4000082 kqread syz-fuzzer 32703 212574 18666 0 3 0x10008a sigsusp ksh 18666 350968 24435 0 3 0x9a kqread sshd 24435 437027 1 0 3 0x88 kqread sshd 12849 513619 66454 74 3 0x1100092 bpf pflogd 66454 316208 1 0 3 0x80 netio pflogd 19442 174931 10897 73 3 0x1100090 kqread syslogd 10897 340789 1 0 3 0x100082 netio syslogd 17079 363890 1 0 3 0x100080 kqread resolvd 85754 38198 80471 77 3 0x100092 kqread dhcpleased 37741 446332 80471 77 3 0x100092 kqread dhcpleased 80471 19066 1 0 3 0x80 kqread dhcpleased 69564 305748 0 0 3 0x14200 bored smr 84739 289016 0 0 2 0x14200 zerothread 39865 130590 0 0 3 0x14200 aiodoned aiodoned 35029 478440 0 0 3 0x14200 syncer update 96901 293851 0 0 3 0x14200 cleaner cleaner 46925 72280 0 0 3 0x14200 reaper reaper 43754 457887 0 0 3 0x14200 pgdaemon pagedaemon 7848 216418 0 0 3 0x14200 bored viomb 66305 390178 0 0 3 0x40014200 acpi0 acpi0 400 337402 0 0 3 0x40014200 idle1 99882 440307 0 0 3 0x14200 bored softnet 4146 469986 0 0 3 0x14200 bored softnet 7991 174676 0 0 3 0x14200 bored softnet 11161 503871 0 0 3 0x14200 bored softnet 65358 330886 0 0 3 0x14200 bored systqmp 55224 121715 0 0 3 0x14200 bored systq 40731 38761 0 0 3 0x40014200 bored softclock 23927 193997 0 0 3 0x40014200 idle0 1 74413 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 (0xfffffd80663aacb8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_enter+0x1b8 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1b8 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:414 [inline] #3 pmap_enter+0x1b8 sys/arch/amd64/amd64/pmap.c:2690 #4 uvm_fault_upper+0x2b1 sys/uvm/uvm_fault.c:1057 #5 uvm_fault+0x154 sys/uvm/uvm_fault.c:609 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 39002 (syz-executor.5) thread 0xffff8000212ef270 (96820) exclusive rwlock amaplk r = 0 (0xfffffd80683f69b0) #0 witness_lock+0x44d #1 uvm_fault_check+0x422 sys/uvm/uvm_fault.c:783 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806a9208c8) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1772 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd80663aacb8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_enter+0x1b8 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1b8 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:414 [inline] #3 pmap_enter+0x1b8 sys/arch/amd64/amd64/pmap.c:2690 #4 uvm_fault_upper+0x2b1 sys/uvm/uvm_fault.c:1057 #5 uvm_fault+0x154 sys/uvm/uvm_fault.c:609 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 45649 (syz-executor.2) thread 0xffff8000212ee550 (415708) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82a25b80) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 tsleep+0x12c sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1268 #6 bwrite+0x21b sys/kern/vfs_bio.c:769 #7 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 #8 ufs_direnter+0x8fa sys/ufs/ufs/ufs_lookup.c:909 #9 ufs_makeinode+0x4cc sys/ufs/ufs/ufs_vnops.c:1856 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1370 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 #13 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ea782c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1818 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1370 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 #13 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 Process 29660 (syz-executor.7) thread 0xffff80002131fa40 (406778) exclusive rrwlock inode r = 0 (0xfffffd80667785f8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #10 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8066778928) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10195 6538K 6810K 78643K 13183 0 pcb 13 10K 12K 78643K 307 0 rtable 183 8K 9K 78643K 525 0 ifaddr 76 15K 17K 78643K 144 0 sysctl 2 0K 0K 78643K 2 0 counters 52 35K 35K 78643K 68 0 ioctlops 0 0K 4K 78643K 1549 0 iov 0 0K 32K 78643K 170 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1342 84K 84K 78643K 1906 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 15 0 VM map 2 1K 1K 78643K 2 0 sem 18 1K 2K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 82K 78643K 1154 0 sigio 0 0K 0K 78643K 35 0 proc 70 91K 115K 78643K 652 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 39 0 in_multi 67 4K 6K 78643K 166 0 ether_multi 1 0K 0K 78643K 9 0 mrt 1 0K 0K 78643K 16 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 907 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 271 178K 178K 78643K 8695 0 UVM aobj 87 3K 3K 78643K 90 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 11 0K 2K 78643K 45 0 temp 125 4734K 5754K 78643K 18699 0 kqueue 12 18K 24K 78643K 94 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 64 0 61 1 0 1 1 0 8 0 rtentry 112 166 0 87 4 0 4 4 0 8 0 unpcb 144 1159 0 1144 11 5 6 6 0 8 5 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpcb 768 406 0 396 20 15 5 15 0 8 3 arp 120 24 0 10 1 0 1 1 0 8 0 inpcb 368 1084 0 1075 12 5 7 8 0 8 6 nd6 48 37 0 24 1 0 1 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 pfstscr 40 2 0 1 1 0 1 1 0 8 0 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 4 0 3 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 19 2 21 0 8 2 pfrktable 1344 5 0 3 2 1 1 1 0 8 0 pfanchor 1280 49 0 48 2 1 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 21 0 12 1 0 1 1 0 8 0 pfstkey 120 23 0 14 1 0 1 1 0 8 0 pfstate 336 21 0 13 2 0 2 2 0 8 0 pfrule 1360 32 0 25 2 1 1 2 0 8 0 rttmr 136 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 737 0 426 29 5 24 29 0 8 4 art_table 32 739 0 427 4 0 4 4 0 8 0 art_node 16 165 0 93 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 8 1 0 1 1 0 8 0 semapl 112 16 0 0 1 0 1 1 0 8 0 shmpl 112 87 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2724 0 1277 91 0 91 91 0 8 0 ffsino 272 2724 0 1277 97 0 97 97 0 8 0 nchpl 144 4250 0 2608 63 0 63 63 0 8 0 uvmvnodes 80 3355 0 0 69 0 69 69 0 8 0 vnodes 216 3355 0 0 187 0 187 187 0 8 0 namei 1024 16396 0 16394 2 1 1 2 0 8 0 percpumem 16 46 0 8 1 0 1 1 0 8 0 vcpupl 2048 6 0 0 1 0 1 1 0 8 0 vmpool 568 6 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 0 1 0 1 1 0 8 0 kstatmem 264 38 0 16 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 12737 0 12736 9 8 1 8 0 8 0 plimitpl 152 177 0 161 1 0 1 1 0 8 0 sigapl 424 1466 0 1418 7 1 6 6 0 8 0 futexpl 64 9564 0 9563 1 0 1 1 0 8 0 knotepl 120 367 0 0 11 0 11 11 0 8 0 kqueuepl 216 275 0 267 9 8 1 5 0 8 0 pipepl 320 494 0 466 9 3 6 6 0 8 3 fdescpl 496 1447 0 1418 5 0 5 5 0 8 0 filepl 152 9458 0 9217 26 8 18 19 0 8 8 lockfpl 104 391 0 389 2 1 1 2 0 8 0 lockfspl 48 90 0 88 1 0 1 1 0 8 0 sessionpl 144 28 0 11 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 627 0 615 1 0 1 1 0 8 0 zombiepl 144 1418 0 1418 1 0 1 1 0 8 1 processpl 1064 1466 0 1418 4 0 4 4 0 8 0 procpl 672 3524 0 3460 9 2 7 8 0 8 1 srpgc 96 6 0 6 2 2 0 1 0 8 0 sosppl 168 10 0 10 1 0 1 1 0 8 1 sockpl 488 2307 0 2280 38 26 12 21 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 16 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 471 0 0 58 0 58 58 0 8 0 mtagpl 96 126 0 0 4 0 4 4 0 8 0 mbufpl 256 1050 0 0 65 0 65 65 0 8 0 bufpl 288 5042 0 131 351 0 351 351 0 8 0 anonpl 24 289568 0 274593 140 12 128 134 0 186 12 amapchunkpl 152 23689 0 22993 42 9 33 39 0 158 1 amappl16 200 4817 0 4272 51 8 43 43 0 8 13 amappl15 192 38 0 35 1 0 1 1 0 8 0 amappl14 184 131 0 129 1 0 1 1 0 8 0 amappl13 176 194 0 192 1 0 1 1 0 8 0 amappl12 168 13 0 12 1 0 1 1 0 8 0 amappl11 160 93 0 70 2 0 2 2 0 8 0 amappl10 152 625 0 616 1 0 1 1 0 8 0 amappl9 144 652 0 647 1 0 1 1 0 8 0 amappl8 136 676 0 618 3 0 3 3 0 8 1 amappl7 128 185 0 162 1 0 1 1 0 8 0 amappl6 120 344 0 327 2 1 1 2 0 8 0 amappl5 112 1595 0 1575 1 0 1 1 0 8 0 amappl4 104 969 0 937 2 0 2 2 0 8 0 amappl3 96 3849 0 3801 2 0 2 2 0 8 0 amappl2 88 618 0 561 3 1 2 3 0 8 0 amappl1 80 37956 0 37211 24 6 18 23 0 8 0 amappl 88 8135 0 7963 6 1 5 5 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 89 0 3 2 0 2 2 0 8 0 uaddrrnd 24 1454 0 1419 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1454 0 1419 1 0 1 1 0 8 0 vmmpekpl 168 17352 0 17294 3 0 3 3 0 8 0 vmmpepl 168 145533 0 142836 159 17 142 145 0 357 12 vmsppl 368 1453 0 1419 4 0 4 4 0 8 0 rwobjpl 56 41588 0 36463 79 2 77 77 0 8 1 pdppl 4096 2915 0 2844 131 56 75 79 0 8 4 pvpl 32 646734 0 626905 266 30 236 266 0 265 44 pmappl 248 1453 0 1419 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 859 0 71 23 0 23 23 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x7f7ffffc35f0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_write_1(3f8,0,65) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:771 comcnputc(800,65) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,65) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(65) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff82658634) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff8260423b) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff8000213050e0,8) at kpageflttrap+0x25a sys/arch/amd64/amd64/trap.c:275 kerntrap(ffff8000213050e0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff8000213051e0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 end trace frame: 0xffff800021305250, count: 0 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_write_1(3f8,0,65) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:771 comcnputc(800,65) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,65) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(65) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff82658634) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff8260423b) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff8000213050e0,8) at kpageflttrap+0x25a sys/arch/amd64/amd64/trap.c:275 kerntrap(ffff8000213050e0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff8000213051e0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 VOP_WRITE(fffffd8076b7f450,ffff800021305278,8,fffffd807f7d7478) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8076b7f450,ffff800021259c00,f7,0,1,38e29e20e39d32a0,ffff8000213053a0,fffffd8076b7f450,78) at vn_rdwr+0xe9 sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000213053a0) at ufs_symlink+0x142 sys/ufs/ufs/ufs_vnops.c:1386 VOP_SYMLINK(fffffd8076b7f888,ffff800021305520,ffff800021305550,ffff800021305450,ffff800021259c00) at VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 dosymlinkat(ffff8000212ee550,20000440,ffffff9c,20000bc0) at dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 syscall(ffff8000213056d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000213056d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd54122d620, count: -21