uvm_fault(0xffffffff83a2afb0, 0xffff800019822018, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs2_balloc+0xa0a: movq 0(%rcx,%rax,8),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
ffs2_balloc(fffff7806d675800,3f000,1000,fffff78007ffd618,1,ffff80002a794c38) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a794cc0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff7806f126e88,ffff80002a794d50,0,fffff78007ffd618) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
uvn_io(fffff7806f985288,ffff80002a794ed0,1,39,1) at uvn_io+0x485 sys/uvm/uvm_vnode.c:1232
uvm_pager_put(fffff7806f985288,fffff78007715a80,ffff80002a794f70,ffff80002a794f94,39,0,f34d7ec41c6a0878) at uvm_pager_put+0x10a sys/uvm/uvm_pager.c:531
uvn_flush(fffff7806f985288,0,0,19) at uvn_flush+0x68d sys/uvm/uvm_vnode.c:705
uvn_detach(fffff7806f985288) at uvn_detach+0xb8 sys/uvm/uvm_vnode.c:344
uvm_unmap_detach(ffff80002a7950a0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370
uvm_map_teardown(fffff7807f2342e0) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536
exit1(ffff80002a7662a8,43,0,1) at exit1+0x705 sys/kern/kern_exit.c:259
sys_exit(ffff80002a7662a8,ffff80002a795260,ffff80002a7951b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a795260) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a795260) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7c6370ada4a0, count: 2
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(0xffffffff83a2afb0, 0xffff800019822018, 0, 1) -> d
ddb> show kasan
No such command
ddb> trace
ffs2_balloc(fffff7806d675800,3f000,1000,fffff78007ffd618,1,ffff80002a794c38) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a794cc0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff7806f126e88,ffff80002a794d50,0,fffff78007ffd618) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
uvn_io(fffff7806f985288,ffff80002a794ed0,1,39,1) at uvn_io+0x485 sys/uvm/uvm_vnode.c:1232
uvm_pager_put(fffff7806f985288,fffff78007715a80,ffff80002a794f70,ffff80002a794f94,39,0,f34d7ec41c6a0878) at uvm_pager_put+0x10a sys/uvm/uvm_pager.c:531
uvn_flush(fffff7806f985288,0,0,19) at uvn_flush+0x68d sys/uvm/uvm_vnode.c:705
uvn_detach(fffff7806f985288) at uvn_detach+0xb8 sys/uvm/uvm_vnode.c:344
uvm_unmap_detach(ffff80002a7950a0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370
uvm_map_teardown(fffff7807f2342e0) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536
exit1(ffff80002a7662a8,43,0,1) at exit1+0x705 sys/kern/kern_exit.c:259
sys_exit(ffff80002a7662a8,ffff80002a795260,ffff80002a7951b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a795260) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a795260) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7c6370ada4a0, count: -13
ddb> show registers
rdi 0
rsi 0
rbp 0xffff80002a794be0
rbx 0xfffff7806d675800
rdx 0
rcx 0xffff800019822000
rax 0x3
r8 0xffffffffffffffff
r9 0xffff80002a794c38
r10 0x2308a22d147edc1f
r11 0xa022b73e46fcf841
r12 0x1
r13 0xffff800000c48800
r14 0xffff80002a794a80
r15 0xfffff7806d618ab0
rip 0xffffffff83025d3a ffs2_balloc+0xa0a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a794a70
ss 0x10
ffs2_balloc+0xa0a: movq 0(%rcx,%rax,8),%r14
ddb> show proc
PROC (syz-executor) tid=341557 pid=9961 tcnt=0 stat=onproc
flags process=a<EXEC,EXITING> proc=2000<WEXIT>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=1
forw=0xffffffffffffffff, list=0xffff80002a766fa0,0xffff80002a7362b0
process=0xffff80002a79c910 user=0xffff80002a790000, vmspace=0xfffff7807f2342e0
estcpu=36, cpticks=28, pctcpu=0.4, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
41202 471242 1 0 3 0 0x80 nanoslp init
62392 334998 1 0 3 0x2 0x88 kqread sshd
9631 172636 81821 73 3 0x1100010 0x80 kqread syslogd
81821 20268 1 0 3 0x100002 0x80 sbwait syslogd
5792 237904 1 0 3 0x100000 0x80 kqread resolvd
84837 279486 21554 77 2 0x100012 0 dhcpleased
13431 73366 21554 77 3 0x100012 0x80 kqread dhcpleased
21554 316044 1 0 3 0 0x80 kqread dhcpleased
91281 481411 0 0 3 0x14000 0x200 bored smr
72680 403800 0 0 2 0x14000 0x200 zerothread
61940 129381 0 0 3 0x14000 0x200 aiodoned aiodoned
99049 283934 0 0 3 0x14000 0x200 syncer update
27982 26046 0 0 3 0x14000 0x200 cleaner cleaner
4890 473630 0 0 3 0x14000 0x200 reaper reaper
33785 421054 0 0 3 0x14000 0x200 pgdaemon pagedaemon
57865 251874 0 0 3 0x14000 0x200 bored viomb
5307 370026 0 0 3 0x14000 0x40000200 acpi0 acpi0
39674 251548 0 0 2 0x14000 0x200 softnet0
39892 421347 0 0 3 0x14000 0x200 bored systqmp
97877 40330 0 0 3 0x14000 0x200 bored systq
16054 309989 0 0 3 0x14000 0x40000200 tmoslp softclock
9110 281906 0 0 3 0x14000 0x40000200 idle0
1 425247 0 0 3 0x80002 0x80 wait init
0 0 -1 0 3 0x10010000 0x200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11054 12174K 12652K 166960K 12830 0
pcb 17 16K 21K 166960K 433 0
rtable 100 5K 8K 166960K 585 0
pf 29 13K 75K 166960K 319 0
ifaddr 16 2K 7K 166960K 68 0
ifgroup 27 1K 2K 166960K 114 0
sysctl 4 1K 9K 166960K 15 0
counters 28 17K 18K 166960K 58 0
ioctlops 0 0K 4K 166960K 537 0
iov 0 0K 16K 166960K 54 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1364 86K 86K 166960K 2305 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 28 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 80 0
dirhash 12 2K 2K 166960K 33 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 2 4K 97K 166960K 1336 0
sigio 0 0K 0K 166960K 30 0
proc 51 50K 124K 166960K 640 0
subproc 9 0K 4K 166960K 73 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 106 0
in_multi 23 1K 7K 166960K 128 0
ether_multi 1 0K 0K 166960K 3 0
mrt 1 0K 0K 166960K 22 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 482 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 86 70K 153K 166960K 13333 0
UVM aobj 131 6K 6K 166960K 135 0
pinsyscall 17 34K 96K 166960K 2479 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 46 0
NDP 6 0K 2K 166960K 45 0
temp 46 9118K 9192K 166960K 54206 0
kqueue 10 14K 35K 166960K 242 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 120 115 0 112 1 0 1 1 0 8 0
rtentry 136 170 0 143 4 0 4 4 0 8 0
unpcb 144 1129 0 1117 11 10 1 6 0 8 0
syncache 336 17 0 17 2 2 0 1 0 8 0
tcpcb 736 393 0 390 7 6 1 7 0 8 0
arp 96 20 0 16 1 0 1 1 0 8 0
ipq 40 7 0 1 1 0 1 1 0 8 0
ipqe 40 76 0 69 1 0 1 1 0 8 0
inpcb 328 1410 0 1404 22 20 2 12 0 8 0
ip6q 72 7 0 2 1 0 1 1 0 8 0
ip6af 40 9 0 6 1 0 1 1 0 8 0
nd6 112 30 0 25 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
kcovpl 48 8 0 7 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 0 1 1 0 8 1
ppxss 1072 16 0 16 2 1 1 1 0 8 1
pppxif 1416 2 0 2 1 1 0 1 0 8 0
pfstscr 40 91 0 71 1 0 1 1 0 8 0
pfosfp 40 1 0 0 1 0 1 1 0 8 0
pfosfpen 112 1 0 0 1 0 1 1 0 8 0
pfrktable 1344 12 0 10 1 0 1 1 0 8 0
pfsrclim 320 2 0 1 1 0 1 1 0 8 0
pfanchor 1288 9 0 5 1 0 1 1 0 8 0
pftag 88 7 0 1 1 0 1 1 0 8 0
pfqueue 320 1 0 0 1 0 1 1 0 8 0
pfstitem 24 24 0 6 1 0 1 1 0 8 0
pfstkey 128 94 0 74 1 0 1 1 0 8 0
pfstate 384 48 0 37 2 0 2 2 0 8 0
pfrule 1360 52 0 51 2 1 1 1 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 751 0 606 32 11 21 32 0 8 8
art_table 40 754 0 606 6 0 6 6 0 8 1
art_node 32 166 0 143 1 0 1 1 0 8 0
sysvmsgpl 40 10 0 7 1 0 1 1 0 8 0
semupl 112 2 0 2 2 2 0 1 0 8 0
semapl 72 78 0 68 1 0 1 1 0 8 0
shmpl 112 132 0 4 4 0 4 4 0 8 0
dirhash 1024 31 0 14 3 0 3 3 0 8 0
dino2pl 256 3919 0 2469 92 0 92 92 0 8 0
ffsino 256 3931 0 2481 92 0 92 92 0 8 0
nchpl 144 5756 0 4060 64 0 64 64 0 8 0
rtmask 32 3 0 3 2 2 0 1 0 8 0
vnodes 216 4406 0 0 245 0 245 245 0 8 0
namei 1024 20360 0 20360 3 2 1 2 0 8 1
pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0
kstatmem 264 59 0 46 4 1 3 3 0 8 1
scsiplug 72 3 0 3 1 1 0 1 0 8 0
scxspl 216 24795 0 24795 9 8 1 8 1 8 1
plimitpl 152 410 0 398 1 0 1 1 0 8 0
sigapl 424 1637 0 1606 6 1 5 6 0 8 0
knotepl 120 54263 0 54238 38 28 10 15 0 8 8
kqueuepl 184 368 0 362 3 2 1 3 0 8 0
pipepl 304 229 0 227 3 0 3 3 0 8 2
fdescpl 448 1623 0 1612 5 1 4 5 0 8 0
filepl 120 11243 0 11186 17 8 9 13 0 8 3
lockfpl 104 580 0 578 2 1 1 2 0 8 0
lockfspl 48 259 0 257 1 0 1 1 0 8 0
sessionpl 144 150 0 144 1 0 1 1 0 8 0
pgrppl 48 181 0 168 1 0 1 1 0 8 0
ucredpl 104 2085 0 2076 1 0 1 1 0 8 0
zombiepl 144 1614 0 1606 2 1 1 1 0 8 0
processpl 1152 1637 0 1606 4 0 4 4 0 8 0
procpl 664 3383 0 3352 6 1 5 6 0 8 0
sosppl 176 7 0 7 1 1 0 1 0 8 0
sockpl 552 2697 0 2676 22 19 3 12 0 8 0
mcl64k 65536 118 0 116 1 0 1 1 0 8 0
mcl16k 16384 5 0 5 1 1 0 1 0 8 0
mcl12k 12288 2 0 2 1 1 0 1 0 8 0
mcl9k128 9344 1 0 1 1 1 0 1 0 8 0
mcl8k 8192 16 0 15 1 0 1 1 0 8 0
mcl4k 4096 4279 0 4229 16 8 8 14 0 8 1
mcl2k2 2112 1 0 1 1 1 0 1 0 8 0
mcl2k 2048 1290 0 1282 7 5 2 5 0 8 0
mextrefs 64 659 0 658 2 1 1 1 0 8 0
mtagpl 96 5 0 5 1 1 0 1 0 8 0
mbufpl 256 16749 0 16673 31 5 26 31 0 8 15
bufpl 272 8580 0 2364 415 0 415 415 0 8 0
anonpl 24 257364 0 255831 88 45 43 70 0 187 13
amapchunkpl 152 55828 0 55709 47 23 24 35 0 158 12
amappl16 200 4659 0 4651 50 41 9 27 0 8 8
amappl15 192 7 0 6 1 0 1 1 0 8 0
amappl14 184 414 0 414 1 1 0 1 0 8 0
amappl13 176 120 0 113 1 0 1 1 0 8 0
amappl12 168 1877 0 1867 2 0 2 2 0 8 0
amappl11 160 4 0 4 1 1 0 1 0 8 0
amappl10 152 58 0 47 1 0 1 1 0 8 0
amappl9 144 270 0 270 1 1 0 1 0 8 0
amappl8 136 108 0 106 1 0 1 1 0 8 0
amappl7 128 159 0 148 1 0 1 1 0 8 0
amappl6 120 150 0 149 1 0 1 1 0 8 0
amappl5 112 95 0 89 1 0 1 1 0 8 0
amappl4 104 296 0 282 1 0 1 1 0 8 0
amappl3 96 9315 0 9286 4 0 4 4 0 8 0
amappl2 88 558 0 514 2 0 2 2 0 8 0
amappl1 80 15714 0 15424 13 4 9 13 0 8 0
amappl 88 12400 0 12359 5 1 4 5 0 92 0
uvmvnodes 80 143 0 0 3 0 3 3 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 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
dma512 512 1 0 1 1 1 0 1 0 8 0
dma256 256 7 0 7 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 7 0 7 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 72 134 0 4 3 0 3 3 0 8 0
uaddrrnd 24 1623 0 1612 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1623 0 1612 1 0 1 1 0 8 0
vmmpekpl 168 13846 0 13828 3 0 3 3 0 8 0
vmmpepl 168 107598 0 106843 103 25 78 102 0 357 14
vmsppl 368 1622 0 1611 4 1 3 4 0 8 0
rwobjpl 40 29652 0 28929 16 0 16 16 0 8 0
pdppl 4096 3252 0 3222 98 50 48 82 0 8 18
pvpl 32 714494 0 711369 167 62 105 154 0 265 45
pmappl 216 1622 0 1611 3 0 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 821 0 97 23 0 23 23 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
ffs2_balloc(fffff7806d675800,3f000,1000,fffff78007ffd618,1,ffff80002a794c38) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a794cc0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff7806f126e88,ffff80002a794d50,0,fffff78007ffd618) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
uvn_io(fffff7806f985288,ffff80002a794ed0,1,39,1) at uvn_io+0x485 sys/uvm/uvm_vnode.c:1232
uvm_pager_put(fffff7806f985288,fffff78007715a80,ffff80002a794f70,ffff80002a794f94,39,0,f34d7ec41c6a0878) at uvm_pager_put+0x10a sys/uvm/uvm_pager.c:531
uvn_flush(fffff7806f985288,0,0,19) at uvn_flush+0x68d sys/uvm/uvm_vnode.c:705
uvn_detach(fffff7806f985288) at uvn_detach+0xb8 sys/uvm/uvm_vnode.c:344
uvm_unmap_detach(ffff80002a7950a0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370
uvm_map_teardown(fffff7807f2342e0) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536
exit1(ffff80002a7662a8,43,0,1) at exit1+0x705 sys/kern/kern_exit.c:259
sys_exit(ffff80002a7662a8,ffff80002a795260,ffff80002a7951b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a795260) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a795260) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7c6370ada4a0, count: -13
ddb>