*cpu1: uvm_fault(0xfffffd806b33a018, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x76052c1d4020, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a21f980 rbx 0 rdx 0 rcx 0xffff80002bca0548 rax 0x2a r8 0xffff80002a21f8b0 r9 0 r10 0x4828c36377533f8 r11 0x86b96ef02364f271 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff826594c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a21f900 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor.2) tid=486993 pid=56095 tcnt=2 stat=onproc flags process=8000010 proc=0 runpri=77, usrpri=77, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002bca19c8,0xffff80002bca0a78 process=0xffff800038e0d1e8 user=0xffff80002a21a000, vmspace=0xfffffd806b33add8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72078 181998 21986 32767 2 0x8000010 syz-executor.6 3099 82340 3169 32767 2 0x8000010 syz-executor.7 3099 487806 3169 32767 3 0xc000090 fsleep syz-executor.7 28707 383516 90132 32767 2 0x8000010 syz-executor.4 *56095 486993 99860 32767 7 0x8000010 syz-executor.2 56095 163333 99860 32767 3 0xc000090 fsleep syz-executor.2 45045 309371 54432 32767 2 0x8000010 syz-executor.3 45045 509010 54432 32767 7 0xc000010 syz-executor.3 46707 377153 55483 32767 3 0x8000090 nanoslp syz-executor.0 46707 410042 55483 32767 3 0xc000090 ttyopn syz-executor.0 46707 321675 55483 32767 3 0xc000090 fsleep syz-executor.0 90132 294884 23784 32767 3 0x8000090 nanoslp syz-executor.4 23784 9139 24957 0 3 0x8000082 wait syz-executor.4 3169 161930 22190 32767 3 0x8000090 nanoslp syz-executor.7 22190 334839 24957 0 3 0x8000082 wait syz-executor.7 54432 229348 85208 32767 3 0x8000090 nanoslp syz-executor.3 85208 207744 24957 0 3 0x8000082 wait syz-executor.3 21986 333300 46905 32767 3 0x8000090 nanoslp syz-executor.6 46905 221247 24957 0 3 0x8000082 wait syz-executor.6 1922 131064 52964 32767 2 0x8000010 syz-executor.1 52964 79000 24957 0 3 0x8000082 wait syz-executor.1 99860 365477 41382 32767 3 0x8000090 nanoslp syz-executor.2 41382 395897 24957 0 3 0x8000082 wait syz-executor.2 86847 3765 1 32767 2 0x8000010 syz-executor.5 19030 251744 0 0 3 0x14200 bored sosplice 55483 265748 1 32767 3 0x8000090 nanoslp syz-executor.0 24957 407476 98028 0 3 0x1a000082 thrsleep syz-fuzzer 24957 149192 98028 0 3 0x1e000082 nanoslp syz-fuzzer 24957 107153 98028 0 3 0x1e000082 wait syz-fuzzer 24957 517622 98028 0 3 0x1e000082 thrsleep syz-fuzzer 24957 419893 98028 0 3 0x1e000082 thrsleep syz-fuzzer 24957 286140 98028 0 3 0x1e000082 wait syz-fuzzer 24957 311388 98028 0 3 0x1e000082 thrsleep syz-fuzzer 24957 226717 98028 0 3 0x1e000082 thrsleep syz-fuzzer 24957 304098 98028 0 3 0x1e000082 kqread syz-fuzzer 24957 193188 98028 0 3 0x1e000082 wait syz-fuzzer 24957 52044 98028 0 3 0x1e000082 thrsleep syz-fuzzer 24957 57130 98028 0 3 0x1e000082 wait syz-fuzzer 24957 349283 98028 0 3 0x1e000082 wait syz-fuzzer 24957 466522 98028 0 3 0x1e000082 wait syz-fuzzer 24957 492861 98028 0 3 0x1e000082 thrsleep syz-fuzzer 98028 476334 22494 0 3 0x810008a sigsusp ksh 22494 416216 58217 0 3 0x1800009a kqread sshd 90990 245963 1 0 3 0x18100083 ttyin getty 58217 355817 1 0 3 0x18000088 kqread sshd 1389 453187 91672 73 3 0x19100010 ffs_fsync syslogd 91672 451870 1 0 3 0x18100082 sbwait syslogd 20818 234125 1 0 3 0x18100080 kqread resolvd 44795 49751 13357 77 3 0x18100092 kqread dhcpleased 39630 104511 13357 77 3 0x18100092 kqread dhcpleased 13357 184495 1 0 3 0x18000080 kqread dhcpleased 46074 169444 0 0 3 0x14200 bored smr 41408 60286 0 0 2 0x14200 zerothread 76096 289556 0 0 3 0x14200 aiodoned aiodoned 43277 373310 0 0 3 0x14200 syncer update 75639 214093 0 0 3 0x14200 cleaner cleaner 96518 67459 0 0 3 0x14200 reaper reaper 49792 396019 0 0 3 0x14200 pgdaemon pagedaemon 28954 187273 0 0 3 0x14200 bored viomb 34560 303527 0 0 3 0x40014200 acpi0 acpi0 84218 317149 0 0 3 0x40014200 idle1 53189 427127 0 0 3 0x14200 bored softnet3 30141 341367 0 0 3 0x14200 bored softnet2 81274 505384 0 0 3 0x14200 bored softnet1 67775 62742 0 0 3 0x14200 bored softnet0 29592 218777 0 0 3 0x14200 bored systqmp 96600 487008 0 0 3 0x14200 bored systq 81706 65909 0 0 3 0x14200 tmoslp softclockmp 50450 375772 0 0 3 0x40014200 tmoslp softclock 43974 31552 0 0 3 0x40014200 idle0 1 15718 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 56095 (syz-executor.2) thread 0xffff80002bca0548 (486993) exclusive rwlock amaplk r = 0 (0xfffffd8063abd8d0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvm_fault_check+0x401 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b33aec8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 45045 (syz-executor.3) thread 0xffff80002a156d20 (509010) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82daade8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x491 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19a sys/kern/kern_synch.c:417 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x1fe sys/kern/vfs_bio.c:766 #6 ffs_update+0x27f sys/ufs/ffs/ffs_inode.c:111 #7 ufs_direnter+0x597 sys/ufs/ufs/ufs_lookup.c:726 #8 ufs_makeinode+0x3c2 sys/ufs/ufs/ufs_vnops.c:1769 #9 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #10 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #11 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #12 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #12 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8075cead60) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd 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:1201 #8 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xb0 sys/ufs/ufs/ufs_vnops.c:1733 #10 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #11 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 1922 (syz-executor.1) thread 0xffff80002a208540 (131064) exclusive rrwlock inode r = 0 (0xfffffd805c939a30) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd 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:1201 #8 ufs_lookup+0x1373 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566 #11 namei+0x56a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1855 #13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bdc5d68) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1855 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 1389 (syslogd) thread 0xffff8000ffffd720 (453187) exclusive rrwlock inode r = 0 (0xfffffd806e6675f0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904 #6 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 6412K 6419K 166960K 11351 0 pcb 17 14K 16K 166960K 19 0 rtable 242 6K 7K 166960K 1289 0 pf 29 8K 8K 166960K 73 0 ifaddr 44 15K 15K 166960K 138 0 ifgroup 50 2K 2K 166960K 138 0 sysctl 3 1K 2K 166960K 5 0 counters 64 36K 36K 166960K 108 0 ioctlops 0 0K 2K 166960K 95 0 iov 0 0K 24K 166960K 219 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1377 87K 87K 166960K 2248 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 77 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 391 0 dirhash 12 2K 3K 166960K 123 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 22 81K 121K 166960K 3573 0 sigio 0 0K 0K 166960K 86 0 proc 59 91K 127K 166960K 1388 0 subproc 104 6K 7K 166960K 455 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 722 0 in_multi 99 7K 7K 166960K 459 0 ether_multi 1 0K 0K 166960K 15 0 mrt 2 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 927 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 296 76K 96K 166960K 32909 0 UVM aobj 131 6K 8K 166960K 145 0 pinsyscall 42 84K 108K 166960K 5258 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 279 0 NDP 11 0K 2K 166960K 93 0 temp 74 6820K 6948K 166960K 14099 0 kqueue 13 20K 31K 166960K 553 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 120 487 0 483 1 0 1 1 0 8 0 rtentry 112 414 0 300 4 0 4 4 0 8 0 unpcb 144 3039 0 3024 11 10 1 2 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 sackhl 24 3 0 3 3 3 0 1 0 8 0 tcpqe 32 39 0 39 5 5 0 1 0 8 0 tcpcb 808 1862 0 1857 59 53 6 14 0 8 5 arp 120 62 0 44 1 0 1 1 0 8 0 ipq 40 14 0 13 7 6 1 1 0 8 0 ipqe 40 408 0 407 7 6 1 1 0 8 0 inpcb 384 4103 0 4095 79 72 7 15 0 8 6 nd6 136 151 0 123 5 3 2 2 0 8 0 kcovpl 48 35 0 27 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1656 0 1179 38 8 30 31 0 8 0 art_table 32 1657 0 1179 4 0 4 4 0 8 0 art_node 16 413 0 309 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 389 0 379 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 91 0 74 3 0 3 3 0 8 0 dino2pl 256 6508 0 4975 97 0 97 97 0 8 0 ffsino 272 6508 0 4975 104 0 104 104 0 8 0 nchpl 144 11514 0 9788 66 0 66 66 0 8 0 uvmvnodes 80 6972 0 0 143 0 143 143 0 8 0 vnodes 216 6972 0 0 388 0 388 388 0 8 0 namei 1024 40816 0 40815 14 13 1 2 0 8 0 percpumem 16 68 0 22 1 0 1 1 0 8 0 kstatmem 264 66 0 44 2 0 2 2 0 8 0 scxspl 216 117338 0 117337 41 39 2 8 1 8 1 plimitpl 152 913 0 892 3 1 2 2 0 8 0 sigapl 424 3809 0 3757 7 0 7 7 0 8 0 futexpl 64 49790 0 49787 20 19 1 1 0 8 0 knotepl 120 930 0 0 17 1 16 17 0 8 0 kqueuepl 216 1135 0 1125 6 5 1 3 0 8 0 pipepl 320 851 0 823 15 11 4 6 0 8 1 fdescpl 496 3790 0 3757 7 2 5 6 0 8 0 filepl 152 24522 0 24281 36 25 11 15 0 8 0 lockfpl 104 722 0 720 1 0 1 1 0 8 0 lockfspl 48 290 0 288 1 0 1 1 0 8 0 sessionpl 144 45 0 29 1 0 1 1 0 8 0 pgrppl 48 100 0 84 1 0 1 1 0 8 0 ucredpl 104 5898 0 5880 1 0 1 1 0 8 0 zombiepl 144 3757 0 3757 1 0 1 1 0 8 1 processpl 1136 3809 0 3757 6 1 5 5 0 8 0 procpl 656 7781 0 7710 11 3 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 72 0 72 26 26 0 1 0 8 0 sockpl 664 7733 0 7706 83 76 7 14 0 8 4 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 703 0 0 39 9 30 39 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1363 0 0 73 0 73 73 0 8 0 bufpl 280 15132 0 6143 643 0 643 643 0 8 0 anonpl 24 772474 0 766304 251 173 78 114 0 186 6 amapchunkpl 152 116450 0 115724 112 71 41 53 0 158 1 amappl16 200 16725 0 16615 142 125 17 44 0 8 4 amappl15 192 54 0 53 1 0 1 1 0 8 0 amappl14 184 218 0 206 2 1 1 2 0 8 0 amappl13 176 14 0 14 5 5 0 1 0 8 0 amappl12 168 4742 0 4709 2 0 2 2 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 69 0 59 1 0 1 1 0 8 0 amappl9 144 202 0 202 2 2 0 1 0 8 0 amappl8 136 206 0 168 2 0 2 2 0 8 0 amappl7 128 50 0 36 1 0 1 1 0 8 0 amappl6 120 680 0 665 2 1 1 2 0 8 0 amappl5 112 270 0 257 1 0 1 1 0 8 0 amappl4 104 717 0 684 2 0 2 2 0 8 0 amappl3 96 20601 0 20509 4 1 3 4 0 8 0 amappl2 88 4323 0 4246 3 0 3 3 0 8 0 amappl1 80 21230 0 20728 23 11 12 22 0 8 0 amappl 88 31859 0 31643 6 0 6 6 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 72 144 0 14 3 0 3 3 0 8 0 uaddrrnd 24 3790 0 3757 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3790 0 3757 1 0 1 1 0 8 0 vmmpekpl 168 29904 0 29848 3 0 3 3 0 8 0 vmmpepl 168 244653 0 242637 233 131 102 125 0 357 3 vmsppl 440 3789 0 3757 5 0 5 5 0 8 0 rwobjpl 56 71400 0 63239 135 17 118 118 0 8 0 pdppl 4096 7587 0 7514 256 181 75 93 0 8 2 pvpl 32 44794 0 0 362 0 362 362 0 265 0 pmappl 248 3789 0 3757 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 692 0 267 13 0 13 13 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: 0x76052c1d4020, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2e sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x4f acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x4f sys/dev/acpi/acpitimer.c:120 comcnputc(800,20) at comcnputc+0x1d7 sys/dev/ic/com.c:1270 cnputc(20) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x312 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(31) at db_putchar+0x312 sys/ddb/db_output.c:153 kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064 db_printf(ffffffff82904de4) at db_printf+0x89 sys/kern/subr_prf.c:498 fault(ffffffff828b1824) at fault+0x95 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002bca7410,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002bca7410) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80002bca74f0, count: 0 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2e sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x4f acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x4f sys/dev/acpi/acpitimer.c:120 comcnputc(800,20) at comcnputc+0x1d7 sys/dev/ic/com.c:1270 cnputc(20) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x312 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(31) at db_putchar+0x312 sys/ddb/db_output.c:153 kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064 db_printf(ffffffff82904de4) at db_printf+0x89 sys/kern/subr_prf.c:498 fault(ffffffff828b1824) at fault+0x95 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002bca7410,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002bca7410) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002bca7500) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273 VOP_WRITE(fffffd806928cdd0,ffff80002bca7598,8,fffffd807f7d7618) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd806928cdd0,ffff80002a197800,fd,0,1,f0178cbb746a8e6e,ffff80002bca76c0,fffffd806928cdd0,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002bca76c0) at ufs_symlink+0x175 sys/ufs/ufs/ufs_vnops.c:1314 VOP_SYMLINK(fffffd8055ec8990,ffff80002bca7840,ffff80002bca7870,ffff80002bca7770,ffff80002a197800) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 dosymlinkat(ffff80002a156d20,20000440,7,20000980) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 syscall(ffff80002bca79f0) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002bca79f0) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd58e37b3430, count: -22