uvm_fault(0xfffffd806ba30740, 0x21c0, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at copyout+0x57: repe movsq (%rsi),%es:(%rdi)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*514375 47413 0 0 0x4000000 0 syz-executor
copyout() at copyout+0x57
syscall(ffff80003c9a36f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9a36f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdaf36ba8b50, count: 12
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd806ba30740, 0x21c0, 0, 2) -> e
ddb> trace
copyout() at copyout+0x57
syscall(ffff80003c9a36f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9a36f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdaf36ba8b50, count: -3
ddb> show registers
rdi 0x21c0 __ALIGN_SIZE+0x11c0
rsi 0xffff80003c9a3440
rbp 0xffff80003c9a3620
rbx 0xa8ec __ALIGN_SIZE+0x98ec
rdx 0xffff80003c99e000
rcx 0x4
rax 0x20
r8 0x7f7fffffc000
r9 0
r10 0x5afbc1e36087eba4
r11 0xffffffff82a5a340 copy_fault
r12 0x1
r13 0x16
r14 0xffff80003c9a3440
r15 0xffff80003c9a36f0
rip 0xffffffff82a5a267 copyout+0x57
cs 0x8
rflags 0x50202 acpi_pdirpa+0x3c073
rsp 0xffff80003c9a3370
ss 0x10
copyout+0x57: repe movsq (%rsi),%es:(%rdi)
ddb> show proc
PROC (syz-executor) tid=514375 pid=47413 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003c9962c0,0xffffffff83916278
process=0xffff8000ffff9b18 user=0xffff80003c99e000, vmspace=0xfffffd806ba30740
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
47413 373837 45286 0 2 0 syz-executor
*47413 514375 45286 0 7 0x4000000 syz-executor
12715 481433 2880 0 3 0x80 nanoslp syz-executor
12715 26575 2880 0 3 0x4000080 fsleep syz-executor
70940 290304 58157 0 2 0 syz-executor
70940 269714 58157 0 3 0x4000080 fsleep syz-executor
72717 79208 74165 0 2 0 syz-executor
72717 312607 74165 0 3 0x4000080 fsleep syz-executor
19780 349462 49525 0 2 0 syz-executor
19780 488726 49525 0 3 0x4000080 nanoslp syz-executor
19780 450755 49525 0 3 0x4000080 fsleep syz-executor
81849 416403 0 0 3 0x14200 acct acct
6596 42854 12172 0 3 0x80 nanoslp syz-executor
6596 398061 12172 0 3 0x4000080 kqsel syz-executor
6596 357047 12172 0 3 0x4000080 fsleep syz-executor
14796 418820 25602 0 3 0x80 nanoslp syz-executor
14796 12457 25602 0 3 0x4000080 fifow syz-executor
14796 169857 25602 0 3 0x4000080 fsleep syz-executor
14796 151584 25602 0 3 0x4000080 fsleep syz-executor
2880 325481 51898 0 3 0x82 nanoslp syz-executor
74165 50823 51898 0 3 0x82 nanoslp syz-executor
49525 395096 51898 0 3 0x82 nanoslp syz-executor
25602 112106 51898 0 3 0x82 nanoslp syz-executor
45286 303556 51898 0 3 0x82 nanoslp syz-executor
58157 235803 51898 0 2 0xc82 syz-executor
12172 68927 51898 0 3 0x82 nanoslp syz-executor
55258 420817 51898 0 2 0x2 syz-executor
51898 507578 53852 0 3 0x82 kqread syz-executor
53852 53924 91994 0 3 0x10008a sigsusp ksh
91994 401937 24667 0 3 0x98 kqread sshd-session
24667 247726 47710 0 3 0x92 kqread sshd-session
8160 293601 1 0 3 0x100083 ttyin getty
47710 463659 1 0 3 0x88 kqread sshd
44167 464248 85936 73 3 0x1100090 kqread syslogd
85936 426371 1 0 3 0x100082 sbwait syslogd
44647 443021 1 0 3 0x100080 kqread resolvd
28959 461290 92386 77 3 0x100092 kqread dhcpleased
95753 73478 92386 77 3 0x100092 kqread dhcpleased
92386 450470 1 0 3 0x80 kqread dhcpleased
7086 419694 0 0 3 0x14200 bored smr
90969 192484 0 0 2 0x14200 zerothread
21558 394684 0 0 3 0x14200 aiodoned aiodoned
62922 250478 0 0 3 0x14200 syncer update
36549 414942 0 0 3 0x14200 cleaner cleaner
15536 237237 0 0 3 0x14200 reaper reaper
51793 260872 0 0 3 0x14200 pgdaemon pagedaemon
83795 490514 0 0 3 0x14200 bored viomb
5411 288686 0 0 3 0x40014200 acpi0 acpi0
95591 95550 0 0 3 0x14200 bored softnet7
7591 227461 0 0 3 0x14200 bored softnet6
71500 401503 0 0 3 0x14200 bored softnet5
13691 321544 0 0 3 0x14200 bored softnet4
38529 391958 0 0 3 0x14200 bored softnet3
86001 322112 0 0 3 0x14200 bored softnet2
35546 388284 0 0 3 0x14200 bored softnet1
92495 209900 0 0 3 0x14200 bored softnet0
61092 88693 0 0 3 0x14200 bored systqmp
37063 311098 0 0 3 0x14200 bored systq
54078 132098 0 0 2 0x40014200 softclock
20320 337696 0 0 3 0x40014200 idle0
1 278001 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10210 11077K 11109K 166960K 11332 0
pcb 17 12K 12K 166960K 29 0
rtable 214 7K 7K 166960K 266 0
pf 30 12K 13K 166960K 38 0
ifaddr 42 7K 7K 166960K 47 0
ifgroup 50 2K 2K 166960K 56 0
sysctl 1 1K 9K 166960K 6 0
counters 32 17K 18K 166960K 38 0
ioctlops 0 0K 2K 166960K 35 0
iov 0 0K 12K 166960K 103 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1345 85K 85K 166960K 1393 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 3 0K 0K 166960K 3 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 97K 166960K 188 0
sigio 0 0K 0K 166960K 1 0
proc 63 67K 124K 166960K 482 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 3 0
in_multi 99 7K 7K 166960K 101 0
ether_multi 1 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 211 943K 943K 166960K 211 0
exec 0 0K 1K 166960K 353 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 231 159K 167K 166960K 3138 0
UVM aobj 4 2K 2K 166960K 4 0
pinsyscall 38 76K 96K 166960K 1210 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 2 0
NDP 11 0K 2K 166960K 30 0
temp 37 8634K 8698K 166960K 4587 0
kqueue 14 22K 24K 166960K 31 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 37 0 34 1 0 1 1 0 8 0
rtentry 136 97 0 1 4 0 4 4 0 8 0
unpcb 144 63 0 44 1 0 1 1 0 8 0
syncache 336 3 0 3 1 0 1 1 0 8 1
tcpcb 736 14 0 9 1 0 1 1 0 8 0
arp 96 10 0 0 1 0 1 1 0 8 0
inpcb 328 79 0 71 2 0 2 2 0 8 1
ip6q 72 1 0 0 1 0 1 1 0 8 0
ip6af 40 2 0 1 1 0 1 1 0 8 0
nd6 104 18 0 0 1 0 1 1 0 8 0
pkpcb 40 1 0 1 1 0 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1072 6 0 6 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 439 0 0 28 0 28 28 0 8 0
art_table 40 440 0 0 5 0 5 5 0 8 0
art_node 32 97 0 11 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0
semapl 112 1 0 0 1 0 1 1 0 8 0
shmpl 112 1 0 0 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 1656 0 150 95 0 95 95 0 8 0
ffsino 256 1656 0 150 95 0 95 95 0 8 0
nchpl 144 1933 0 248 63 0 63 63 0 8 0
rtmask 32 2 0 2 1 0 1 1 0 8 1
uvmvnodes 80 1754 0 0 36 0 36 36 0 8 0
vnodes 216 1754 0 0 98 0 98 98 0 8 0
namei 1024 5781 0 5781 2 0 2 2 0 8 2
kstatmem 264 28 0 6 2 0 2 2 0 8 0
scxspl 216 6734 0 6734 8 0 8 8 1 8 8
plimitpl 152 71 0 54 1 0 1 1 0 8 0
sigapl 424 470 0 420 7 0 7 7 0 8 1
knotepl 120 5319 0 5268 9 0 9 9 0 8 7
kqueuepl 184 38 0 24 1 0 1 1 0 8 0
pipepl 304 101 0 74 3 0 3 3 0 8 0
fdescpl 448 449 0 420 5 0 5 5 0 8 1
filepl 120 1624 0 1404 9 0 9 9 0 8 2
lockfpl 104 22 0 20 1 0 1 1 0 8 0
lockfspl 48 12 0 10 1 0 1 1 0 8 0
sessionpl 144 21 0 13 1 0 1 1 0 8 0
pgrppl 48 30 0 14 1 0 1 1 0 8 0
ucredpl 104 208 0 197 1 0 1 1 0 8 0
zombiepl 144 420 0 420 1 0 1 1 0 8 1
processpl 1152 470 0 420 5 0 5 5 0 8 1
procpl 664 546 0 485 6 0 6 6 0 8 0
sockpl 552 181 0 151 3 0 3 3 0 8 0
mcl64k 65536 3 0 3 1 0 1 1 0 8 1
mcl12k 12288 2 0 2 1 0 1 1 0 8 1
mcl8k 8192 5 0 5 1 0 1 1 0 8 1
mcl4k 4096 2511 0 2462 13 0 13 13 0 8 6
mcl2k 2048 224 0 223 1 0 1 1 0 8 0
mtagpl 96 4 0 4 1 0 1 1 0 8 1
mbufpl 256 4278 0 4138 10 0 10 10 0 8 0
bufpl 280 2962 0 117 204 0 204 204 0 8 0
anonpl 24 108519 0 101265 45 0 45 45 0 187 0
amapchunkpl 152 9370 0 8862 21 0 21 21 0 158 0
amappl16 200 2229 0 1965 14 0 14 14 0 8 0
amappl15 192 3 0 3 1 0 1 1 0 8 1
amappl14 184 103 0 93 1 0 1 1 0 8 0
amappl13 176 5 0 5 1 0 1 1 0 8 1
amappl12 168 1058 0 1029 3 0 3 3 0 8 1
amappl11 160 67 0 57 1 0 1 1 0 8 0
amappl10 152 8 0 8 1 0 1 1 0 8 1
amappl9 144 254 0 254 1 0 1 1 0 8 1
amappl8 136 50 0 49 1 0 1 1 0 8 0
amappl7 128 135 0 125 1 0 1 1 0 8 0
amappl6 120 190 0 187 1 0 1 1 0 8 0
amappl5 112 110 0 103 1 0 1 1 0 8 0
amappl4 104 271 0 257 1 0 1 1 0 8 0
amappl3 96 1453 0 1356 3 0 3 3 0 8 0
amappl2 88 671 0 600 2 0 2 2 0 8 0
amappl1 80 8068 0 7509 13 0 13 13 0 8 0
amappl 88 2499 0 2334 4 0 4 4 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 3 0 0 1 0 1 1 0 8 0
uaddrrnd 24 449 0 420 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 449 0 420 1 0 1 1 0 8 0
vmmpekpl 168 5038 0 5013 2 0 2 2 0 8 0
vmmpepl 168 35533 0 33450 94 0 94 94 0 357 1
vmsppl 368 448 0 420 4 0 4 4 0 8 1
rwobjpl 40 14430 0 11580 29 0 29 29 0 8 0
pdppl 4096 905 0 840 95 18 77 83 0 8 12
pvpl 32 232099 0 219126 107 0 107 107 0 265 0
pmappl 216 448 0 420 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 359 0 18 10 0 10 10 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
copyout() at copyout+0x57
syscall(ffff80003c9a36f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9a36f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdaf36ba8b50, count: -3
ddb> machine ddbcpu 1
No such command
ddb> trace
copyout() at copyout+0x57
syscall(ffff80003c9a36f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9a36f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdaf36ba8b50, count: -3