*cpu0: uvm_fault(0xfffffd8065b46000, 0x8, 0, 1) -> e
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x75a0644860e0, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002b2d8190
rbx 0
rdx 0
rcx 0xffff8000ffff54b0
rax 0x2a
r8 0xffff80002b2d80c0
r9 0x4
r10 0xc68e445ab3fa1956
r11 0xc644e7089cac1a89
r12 0
r13 0
r14 0
r15 0
rip 0xffffffff812c74c7 proc_trampoline+0xc7
cs 0x8
rflags 0x246
rsp 0xffff80002b2d8110
ss 0
proc_trampoline+0xc7: movl $0,%gs:0x680
ddb{1}> show proc
PROC (syz-executor.7) tid=340084 pid=7878 tcnt=1 stat=onproc
flags process=8000010<SUGID> proc=0
runpri=70, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a243218,0xffffffff82dbb3c0
process=0xffff8000fffed650 user=0xffff80002b2d3000, vmspace=0xfffffd8065b46370
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
* 7878 340084 98975 32767 7 0x8000010 syz-executor.7
39886 490349 75240 32767 2 0x8000010 syz-executor.5
39886 67763 75240 32767 2 0xc000490 syz-executor.5
10239 343418 50393 32767 2 0x8000010 syz-executor.1
10239 170996 50393 32767 7 0xc000010 syz-executor.1
16832 65967 18710 32767 2 0x8000010 syz-executor.2
16832 65675 18710 32767 3 0xc000090 kqsel syz-executor.2
16832 482595 18710 32767 3 0xc000090 fsleep syz-executor.2
64955 154572 98840 32767 3 0x8000090 nanoslp syz-executor.6
64955 400794 98840 32767 3 0xc000090 kqread syz-executor.6
88030 71329 57492 32767 3 0x8000090 nanoslp syz-executor.3
88030 283990 57492 32767 3 0xc000090 kqsel syz-executor.3
88030 398627 57492 32767 3 0xc000090 sbwait syz-executor.3
57492 236932 62409 32767 3 0x8000090 nanoslp syz-executor.3
62409 359127 27332 0 3 0x8000082 wait syz-executor.3
75240 229677 97243 32767 2 0x8000490 syz-executor.5
97243 418500 27332 0 3 0x8000082 wait syz-executor.5
49830 201287 49970 32767 3 0x8000090 nanoslp syz-executor.0
49970 421701 27332 0 3 0x8000082 wait syz-executor.0
50393 259914 78242 32767 2 0x8000490 syz-executor.1
78242 25147 27332 0 3 0x8000082 wait syz-executor.1
98975 264429 5940 32767 3 0x8000090 nanoslp syz-executor.7
5940 458011 27332 0 3 0x8000082 wait syz-executor.7
61111 32182 96206 32767 2 0x8000010 syz-executor.4
96206 163873 27332 0 3 0x8000082 wait syz-executor.4
18710 471554 65331 32767 3 0x8000090 nanoslp syz-executor.2
65331 56421 27332 0 3 0x8000082 wait syz-executor.2
98840 215778 22739 32767 3 0x8000090 nanoslp syz-executor.6
22739 377663 27332 0 3 0x8000082 wait syz-executor.6
93016 512137 0 0 3 0x14200 bored sosplice
27332 44279 82036 0 3 0x1a000082 wait syz-fuzzer
27332 360924 82036 0 3 0x1e000082 nanoslp syz-fuzzer
27332 139502 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 3161 82036 0 3 0x1e000082 wait syz-fuzzer
27332 452643 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 224250 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 43707 82036 0 3 0x1e000082 kqread syz-fuzzer
27332 48073 82036 0 3 0x1e000082 wait syz-fuzzer
27332 185692 82036 0 3 0x1e000082 wait syz-fuzzer
27332 500574 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 476140 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 522003 82036 0 3 0x1e000082 wait syz-fuzzer
27332 150116 82036 0 3 0x1e000082 thrsleep syz-fuzzer
27332 415624 82036 0 3 0x1e000082 wait syz-fuzzer
27332 10487 82036 0 3 0x1e000082 wait syz-fuzzer
27332 10689 82036 0 3 0x1e000082 wait syz-fuzzer
82036 243989 46515 0 3 0x810008a sigsusp ksh
46515 203199 16208 0 3 0x1800009a kqread sshd
82848 229464 1 0 3 0x18100083 ttyin getty
16208 44915 1 0 3 0x18000088 kqread sshd
67585 150186 77345 73 3 0x19100090 kqread syslogd
77345 275292 1 0 3 0x18100082 sbwait syslogd
84666 335307 1 0 3 0x18100080 kqread resolvd
31775 230515 47157 77 3 0x18100092 kqread dhcpleased
71513 43076 47157 77 3 0x18100092 kqread dhcpleased
47157 287006 1 0 3 0x18000080 kqread dhcpleased
55767 72912 0 0 3 0x14200 bored smr
51086 51105 0 0 2 0x14200 zerothread
39475 490907 0 0 3 0x14200 aiodoned aiodoned
9965 153299 0 0 3 0x14200 syncer update
75624 90683 0 0 3 0x14200 cleaner cleaner
67605 249102 0 0 3 0x14200 reaper reaper
95411 117791 0 0 3 0x14200 pgdaemon pagedaemon
19123 311830 0 0 3 0x14200 bored viomb
14491 57981 0 0 3 0x40014200 acpi0 acpi0
14713 134217 0 0 3 0x40014200 idle1
11992 410421 0 0 3 0x14200 bored softnet3
16391 200345 0 0 3 0x14200 bored softnet2
45426 364027 0 0 3 0x14200 bored softnet1
3251 2084 0 0 3 0x14200 bored softnet0
54388 207921 0 0 3 0x14200 bored systqmp
522 255710 0 0 3 0x14200 bored systq
77778 129624 0 0 2 0x14200 softclockmp
34095 46507 0 0 2 0x40014200 softclock
7038 375917 0 0 3 0x40014200 idle0
1 519583 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82e30b00)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 uvm_fault_lower_lookup+0x1d8 sys/uvm/uvm_fault.c:1171
#4 uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#5 uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#6 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#7 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#8 recall_trap+0x8
Process 7878 (syz-executor.7) thread 0xffff8000ffff54b0 (340084)
exclusive rwlock uobjlk r = 0 (0xfffffd807efa3208)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2 uvm_fault_lower_lookup+0x4b sys/uvm/uvm_fault.c:1126
#3 uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#4 uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#5 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#6 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#7 recall_trap+0x8
shared rwlock vmmaplk r = 0 (0xfffffd8065b46460)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#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
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82e30b00)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 uvm_fault_lower_lookup+0x1d8 sys/uvm/uvm_fault.c:1171
#4 uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#5 uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#6 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#7 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#8 recall_trap+0x8
Process 10239 (syz-executor.1) thread 0xffff8000ffff6a60 (170996)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d90a90)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#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 (0xfffffd806af5a918)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#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 61111 (syz-executor.4) thread 0xffff80002a2422b8 (32182)
exclusive rrwlock inode r = 0 (0xfffffd806af5ad58)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#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 ufs_ihashins+0x46
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1117
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3077
#10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd80683134e8)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#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 domkdirat+0x79 sys/kern/vfs_syscalls.c:3062
#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
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10188 6409K 6419K 166960K 11462 0
pcb 17 12K 12K 166960K 17 0
rtable 250 7K 7K 166960K 2652 0
pf 29 8K 8K 166960K 159 0
ifaddr 44 16K 16K 166960K 312 0
ifgroup 50 2K 2K 166960K 310 0
sysctl 4 1K 3K 166960K 5 0
counters 64 36K 36K 166960K 194 0
ioctlops 0 0K 2K 166960K 201 0
iov 0 0K 24K 166960K 358 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1377 87K 87K 166960K 2662 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 9K 166960K 164 0
VM map 2 1K 1K 166960K 2 0
sem 12 1K 1K 166960K 77 0
dirhash 12 2K 3K 166960K 246 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 24 89K 125K 166960K 5727 0
sigio 0 0K 0K 166960K 134 0
proc 56 78K 115K 166960K 2841 0
subproc 104 6K 7K 166960K 1027 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 1227 0
in_multi 99 7K 7K 166960K 1096 0
ether_multi 1 0K 0K 166960K 35 0
mrt 2 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 145 652K 652K 166960K 145 0
exec 0 0K 1K 166960K 1788 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 313 78K 98K 166960K 49346 0
UVM aobj 131 8K 8K 166960K 149 0
pinsyscall 44 88K 112K 166960K 8577 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 411 0
NDP 11 0K 2K 166960K 222 0
temp 75 6820K 6948K 166960K 23416 0
kqueue 12 18K 31K 166960K 890 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> 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 120 788 0 784 1 0 1 1 0 8 0
rtentry 112 903 0 785 4 0 4 4 0 8 0
unpcb 144 4335 0 4321 17 16 1 4 0 8 0
syncache 336 62 0 62 26 25 1 1 0 8 1
tcpqe 32 16 0 16 4 4 0 1 0 8 0
tcpcb 808 2598 0 2588 39 37 2 2 0 8 1
arp 120 148 0 130 1 0 1 1 0 8 0
ipq 40 26 0 23 4 3 1 1 0 8 0
ipqe 40 175 0 172 4 3 1 1 0 8 0
inpcb 384 6044 0 6029 44 41 3 3 0 8 1
ip6q 72 2 0 2 2 2 0 1 0 8 0
ip6af 40 4 0 4 2 2 0 1 0 8 0
nd6 136 296 0 264 3 1 2 2 0 8 0
kcovpl 48 79 0 71 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 3572 0 3090 37 6 31 31 0 8 0
art_table 32 3573 0 3090 4 0 4 4 0 8 0
art_node 16 902 0 794 1 0 1 1 0 8 0
sysvmsgpl 40 25 0 18 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 74 0 64 1 0 1 1 0 8 0
shmpl 112 146 0 18 4 0 4 4 0 8 0
dirhash 1024 173 0 156 3 0 3 3 0 8 0
dino2pl 256 9097 0 7563 97 0 97 97 0 8 0
ffsino 272 9097 0 7563 103 0 103 103 0 8 0
nchpl 144 17044 0 15310 66 0 66 66 0 8 0
uvmvnodes 80 8667 0 0 177 0 177 177 0 8 0
vnodes 216 8667 0 0 482 0 482 482 0 8 0
namei 1024 62251 0 62249 15 14 1 2 0 8 0
percpumem 16 111 0 65 1 0 1 1 0 8 0
kstatmem 264 152 0 130 2 0 2 2 0 8 0
scxspl 216 159727 0 159727 55 52 3 8 1 8 3
plimitpl 152 1320 0 1293 3 1 2 2 0 8 0
sigapl 424 5875 0 5820 9 2 7 8 0 8 0
futexpl 64 82119 0 82118 21 20 1 1 0 8 0
knotepl 120 1082 0 0 11 0 11 11 0 8 0
kqueuepl 216 1755 0 1742 6 5 1 3 0 8 0
pipepl 320 1170 0 1141 11 8 3 4 0 8 0
fdescpl 496 5856 0 5821 7 2 5 6 0 8 0
filepl 152 35984 0 35730 18 7 11 15 0 8 0
lockfpl 104 1367 0 1364 1 0 1 1 0 8 0
lockfspl 48 504 0 501 1 0 1 1 0 8 0
sessionpl 144 88 0 72 1 0 1 1 0 8 0
pgrppl 48 221 0 205 1 0 1 1 0 8 0
ucredpl 104 7125 0 7107 1 0 1 1 0 8 0
zombiepl 144 5821 0 5820 1 0 1 1 0 8 0
processpl 1136 5875 0 5820 5 0 5 5 0 8 0
procpl 656 11490 0 11413 12 4 8 8 0 8 0
sosppl 168 134 0 134 32 31 1 1 0 8 1
sockpl 664 11317 0 11284 70 66 4 9 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 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 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 872 0 0 38 9 29 38 0 8 0
mtagpl 96 4 0 0 1 0 1 1 0 8 0
mbufpl 256 1842 0 0 68 1 67 67 0 8 0
bufpl 280 17495 0 8770 624 0 624 624 0 8 0
anonpl 24 1074145 0 1067529 239 162 77 98 0 186 0
amapchunkpl 152 171881 0 171107 151 116 35 53 0 158 0
amappl16 200 24106 0 23973 146 127 19 32 0 8 0
amappl15 192 9 0 9 1 1 0 1 0 8 0
amappl14 184 373 0 362 2 1 1 2 0 8 0
amappl13 176 15 0 15 7 7 0 1 0 8 0
amappl12 168 7528 0 7489 4 1 3 3 0 8 0
amappl11 160 50 0 40 1 0 1 1 0 8 0
amappl10 152 149 0 139 1 0 1 1 0 8 0
amappl9 144 174 0 174 2 2 0 1 0 8 0
amappl8 136 382 0 339 2 0 2 2 0 8 0
amappl7 128 57 0 41 1 0 1 1 0 8 0
amappl6 120 1235 0 1220 2 1 1 2 0 8 0
amappl5 112 421 0 409 1 0 1 1 0 8 0
amappl4 104 1087 0 1051 2 0 2 2 0 8 0
amappl3 96 29970 0 29873 5 2 3 4 0 8 0
amappl2 88 6393 0 6317 4 2 2 4 0 8 0
amappl1 80 30573 0 30055 22 10 12 22 0 8 0
amappl 88 47756 0 47527 7 0 7 7 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 72 148 0 18 3 0 3 3 0 8 0
uaddrrnd 24 5856 0 5821 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 5856 0 5821 1 0 1 1 0 8 0
vmmpekpl 168 43253 0 43182 5 1 4 4 0 8 0
vmmpepl 168 375721 0 373593 264 157 107 117 0 357 4
vmsppl 440 5855 0 5821 5 0 5 5 0 8 0
rwobjpl 56 101845 0 91946 181 37 144 144 0 8 0
pdppl 4096 11719 0 11642 419 338 81 97 0 8 4
pvpl 32 46360 0 0 374 0 374 374 0 265 0
pmappl 248 5855 0 5821 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 855 0 432 13 0 13 13 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82ca3ff0) 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+0x65 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline]
acpitimer_delay(1) at acpitimer_delay+0x65 sys/dev/acpi/acpitimer.c:120
comcnputc(800,65) at comcnputc+0x1d7 sys/dev/ic/com.c:1270
cnputc(65) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(65) at db_putchar+0x3eb sys/ddb/db_output.c:155
kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064
db_printf(ffffffff828ff534) at db_printf+0x89 sys/kern/subr_prf.c:498
fault(ffffffff828ac724) at fault+0x95 sys/arch/amd64/amd64/trap.c:157
kpageflttrap(ffff8000373cde10,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290
kerntrap(ffff8000373cde10) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
end trace frame: 0xffff8000373cdef0, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82ca3ff0) 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+0x65 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline]
acpitimer_delay(1) at acpitimer_delay+0x65 sys/dev/acpi/acpitimer.c:120
comcnputc(800,65) at comcnputc+0x1d7 sys/dev/ic/com.c:1270
cnputc(65) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(65) at db_putchar+0x3eb sys/ddb/db_output.c:155
kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064
db_printf(ffffffff828ff534) at db_printf+0x89 sys/kern/subr_prf.c:498
fault(ffffffff828ac724) at fault+0x95 sys/arch/amd64/amd64/trap.c:157
kpageflttrap(ffff8000373cde10,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290
kerntrap(ffff8000373cde10) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
fifo_write(ffff8000373cdf00) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273
VOP_WRITE(fffffd8065c230f0,ffff8000373cdf98,8,fffffd807f7d33a8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8065c230f0,ffff80002a156800,100,0,1,b533f62d0aabf264,ffff8000373ce0c0,fffffd8065c230f0,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324
ufs_symlink(ffff8000373ce0c0) at ufs_symlink+0x175 sys/ufs/ufs/ufs_vnops.c:1314
VOP_SYMLINK(fffffd80559297f0,ffff8000373ce240,ffff8000373ce270,ffff8000373ce170,ffff80002a156800) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426
dosymlinkat(ffff8000ffff6a60,20000700,8,20000ec0) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809
syscall(ffff8000373ce3f0) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff8000373ce3f0) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1630e0d82e0, count: -22
ddb{0}> machine ddbcpu 1
Stopped at proc_trampoline+0xc7: movl $0,%gs:0x680
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x75a0644860e0, count: 14
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x75a0644860e0, count: -1