uvm_fault(0xffffffff83879438, 0x4b, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at uvm_aio_aiodone+0x223: movl 0x48(%rax),%r12d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*485114 16687 0 0x14000 0x200 0 aiodoned
uvm_aio_aiodone(fffffd806fcebe78) at uvm_aio_aiodone+0x223 sys/uvm/uvm_pager.c:718
uvm_aiodone_daemon(ffff80002a7774c8) at uvm_aiodone_daemon+0x212 sys/uvm/uvm_pdaemon.c:358
end trace frame: 0x0, count: 13
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(0xffffffff83879438, 0x4b, 0, 1) -> e
ddb> trace
uvm_aio_aiodone(fffffd806fcebe78) at uvm_aio_aiodone+0x223 sys/uvm/uvm_pager.c:718
uvm_aiodone_daemon(ffff80002a7774c8) at uvm_aiodone_daemon+0x212 sys/uvm/uvm_pdaemon.c:358
end trace frame: 0x0, count: -2
ddb> show registers
rdi 0
rsi 0
rbp 0xffff80002a7750d0
rbx 0
rdx 0
rcx 0x1
rax 0x3
r8 0xffffffffffffffff
r9 0
r10 0xa42acce596935645
r11 0xdbb8cfa99fc925f4
r12 0x3
r13 0xffff800011036000
r14 0xfffffd806fcebe78
r15 0
rip 0xffffffff81e1e283 uvm_aio_aiodone+0x223
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a775000
ss 0x10
uvm_aio_aiodone+0x223: movl 0x48(%rax),%r12d
ddb> show proc
PROC (aiodoned) tid=485114 pid=16687 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=4, usrpri=51, slppri=4, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a72d4c0,0xffff80002a776d10
process=0xffff8000ffffe880 user=0xffff80002a770000, vmspace=0xffffffff83879438
estcpu=1, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
66711 346001 64200 0 3 0x3000 suspend syz-executor
66711 47328 64200 0 2 0x4081000 syz-executor
2968 257479 83194 0 2 0x81000 syz-executor
2968 143351 83194 0 3 0x4003000 suspend syz-executor
83194 223320 74755 0 3 0x82 wait syz-executor
3230 17640 74755 0 2 0x2 syz-executor
38517 171171 74755 0 2 0x2 syz-executor
52934 135786 74755 0 3 0x2 uobjlk syz-executor
64200 83671 74755 0 3 0x82 wait syz-executor
83944 245837 74755 0 2 0x2 syz-executor
21629 171774 74755 0 2 0x2 syz-executor
18681 456638 74755 0 2 0x2 syz-executor
74755 474648 47463 0 3 0x2 uobjlk syz-executor
47463 482889 89161 0 3 0x10008a sigsusp ksh
89161 239972 39060 0 3 0x98 kqread sshd-session
39060 278811 17003 0 3 0x92 kqread sshd-session
51254 395661 1 0 3 0x100083 ttyin getty
17003 196816 1 0 3 0x88 kqread sshd
78625 388791 83879 73 2 0x1100010 syslogd
83879 74421 1 0 3 0x100082 sbwait syslogd
80376 54609 1 0 3 0x100080 kqread resolvd
83278 120709 34029 77 3 0x100092 kqread dhcpleased
93959 222263 34029 77 3 0x100092 kqread dhcpleased
34029 225205 1 0 3 0x80 kqread dhcpleased
2638 158138 0 0 3 0x14200 bored smr
85096 170088 0 0 2 0x14200 zerothread
*16687 485114 0 0 7 0x14200 aiodoned
79812 417005 0 0 3 0x14200 syncer update
42052 303897 0 0 3 0x14200 cleaner cleaner
6230 50928 0 0 3 0x14200 reaper reaper
13324 390895 0 0 3 0x14200 pgdaemon pagedaemon
74598 57646 0 0 3 0x14200 bored viomb
1964 223354 0 0 3 0x40014200 acpi0 acpi0
40194 122549 0 0 3 0x14200 bored softnet0
25449 424068 0 0 3 0x14200 bored systqmp
58203 516400 0 0 3 0x14200 bored systq
79213 67982 0 0 3 0x40014200 tmoslp softclock
92942 193941 0 0 3 0x40014200 idle0
1 278365 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 11035 12112K 12557K 166960K 12257 0
pcb 18 12K 12K 166960K 37 0
rtable 207 6K 8K 166960K 383 0
pf 34 17K 17K 166960K 42 0
ifaddr 37 6K 7K 166960K 48 0
ifgroup 54 2K 2K 166960K 68 0
sysctl 1 1K 9K 166960K 5 0
counters 34 17K 17K 166960K 37 0
ioctlops 0 0K 4K 166960K 36 0
iov 0 0K 4K 166960K 4 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1339 84K 85K 166960K 1404 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 3 0K 0K 166960K 3 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 12 41K 97K 166960K 182 0
sigio 0 0K 0K 166960K 1 0
proc 58 59K 100K 166960K 472 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 2 0K 0K 166960K 73 0
in_multi 77 5K 7K 166960K 102 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 43 201K 201K 166960K 43 0
exec 0 0K 1K 166960K 358 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 183 150K 158K 166960K 3289 0
UVM aobj 5 4K 4K 166960K 5 0
pinsyscall 33 66K 94K 166960K 1250 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
NDP 12 0K 2K 166960K 31 0
temp 34 8914K 8914K 166960K 7002 0
kqueue 13 20K 24K 166960K 28 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 38 0 35 1 0 1 1 0 8 0
rtentry 136 112 0 23 4 0 4 4 0 8 0
unpcb 144 122 0 106 3 0 3 3 0 8 2
syncache 336 3 0 3 1 0 1 1 0 8 1
tcpcb 736 90 0 82 7 0 7 7 0 8 6
arp 96 18 0 4 1 0 1 1 0 8 0
inpcb 328 160 0 148 7 0 7 7 0 8 5
nd6 112 25 0 6 1 0 1 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 454 0 88 29 0 29 29 0 8 3
art_table 40 455 0 88 5 0 5 5 0 8 0
art_node 32 112 0 31 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 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1642 0 142 95 0 95 95 0 8 0
ffsino 256 1642 0 142 95 0 95 95 0 8 0
nchpl 144 1906 0 223 63 0 63 63 0 8 0
vnodes 216 1754 0 0 98 0 98 98 0 8 0
namei 1024 5565 0 5565 2 0 2 2 0 8 2
vcpupl 3904 1 0 0 1 0 1 1 0 8 0
vmpool 808 1 0 0 1 0 1 1 0 8 0
kstatmem 264 30 0 6 2 0 2 2 0 8 0
scxspl 216 8226 0 8226 9 0 9 9 1 8 9
plimitpl 152 32 0 15 1 0 1 1 0 8 0
sigapl 424 468 0 431 6 0 6 6 0 8 1
knotepl 120 5031 0 4984 10 0 10 10 0 8 7
kqueuepl 184 32 0 23 1 0 1 1 0 8 0
pipepl 304 119 0 92 3 0 3 3 0 8 0
fdescpl 448 455 0 431 5 0 5 5 0 8 1
filepl 120 1797 0 1582 10 0 10 10 0 8 2
lockfpl 104 25 0 22 1 0 1 1 0 8 0
lockfspl 48 14 0 11 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 104 101 0 90 1 0 1 1 0 8 0
zombiepl 144 431 0 431 1 0 1 1 0 8 1
processpl 1152 468 0 431 4 0 4 4 0 8 0
procpl 664 549 0 510 5 0 5 5 0 8 1
sockpl 552 321 0 290 7 0 7 7 0 8 4
mcl64k 65536 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 7 0 7 1 0 1 1 0 8 1
mcl4k 4096 2513 0 2463 13 0 13 13 0 8 5
mcl2k 2048 288 0 288 3 0 3 3 0 8 3
mtagpl 96 7 0 5 1 0 1 1 0 8 0
mbufpl 256 4672 0 4516 12 0 12 12 0 8 0
bufpl 280 11334 0 8951 190 1 189 189 0 8 18
anonpl 24 95935 0 91208 32 0 32 32 0 187 0
amapchunkpl 152 9409 0 8967 24 0 24 24 0 158 2
amappl16 200 1594 0 1575 5 0 5 5 0 8 3
amappl15 192 46 0 45 1 0 1 1 0 8 0
amappl14 184 7 0 7 1 0 1 1 0 8 1
amappl13 176 405 0 404 1 0 1 1 0 8 0
amappl12 168 789 0 756 2 0 2 2 0 8 0
amappl11 160 6 0 6 1 0 1 1 0 8 1
amappl10 152 42 0 32 1 0 1 1 0 8 0
amappl9 144 284 0 284 1 0 1 1 0 8 1
amappl8 136 89 0 88 1 0 1 1 0 8 0
amappl7 128 77 0 76 1 0 1 1 0 8 0
amappl6 120 256 0 245 1 0 1 1 0 8 0
amappl5 112 69 0 62 1 0 1 1 0 8 0
amappl4 104 374 0 349 1 0 1 1 0 8 0
amappl3 96 1479 0 1422 3 0 3 3 0 8 0
amappl2 88 573 0 509 2 0 2 2 0 8 0
amappl1 80 9066 0 8556 13 0 13 13 0 8 0
amappl 88 2597 0 2483 4 0 4 4 0 92 0
uvmvnodes 80 97 0 0 2 0 2 2 0 8 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 4 0 0 1 0 1 1 0 8 0
uaoeltpl 96 8681 32 6918 43 0 43 43 0 8 0
uaddrrnd 24 455 0 431 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 455 0 431 1 0 1 1 0 8 0
vmmpekpl 168 5467 0 5429 2 0 2 2 0 8 0
vmmpepl 168 36810 0 35335 81 0 81 81 0 357 4
vmsppl 368 454 0 431 4 0 4 4 0 8 1
rwobjpl 40 13150 0 12288 11 0 11 11 0 8 1
pdppl 4096 919 0 863 97 33 64 83 0 8 8
pvpl 32 807271 0 538028 3196 791 2405 3196 0 265 232
pmappl 216 455 0 431 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 373 0 33 11 0 11 11 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
uvm_aio_aiodone(fffffd806fcebe78) at uvm_aio_aiodone+0x223 sys/uvm/uvm_pager.c:718
uvm_aiodone_daemon(ffff80002a7774c8) at uvm_aiodone_daemon+0x212 sys/uvm/uvm_pdaemon.c:358
end trace frame: 0x0, count: -2
ddb> machine ddbcpu 1
No such command
ddb> trace
uvm_aio_aiodone(fffffd806fcebe78) at uvm_aio_aiodone+0x223 sys/uvm/uvm_pager.c:718
uvm_aiodone_daemon(ffff80002a7774c8) at uvm_aiodone_daemon+0x212 sys/uvm/uvm_pdaemon.c:358
end trace frame: 0x0, count: -2