login: uvm_fault(0xfffffd806d4512f8, 0x8, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at softclock+0xe7: movq %rcx,0x8(%rax)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*407211 85816 0 0 0x4000000 0 syz-executor
softclock(0) at softclock+0xe7 sys/kern/kern_timeout.c:784
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
buf_get(0,0,ffd000) at buf_get+0x5de sys/kern/vfs_bio.c:1170
geteblk(ffd000) at geteblk+0x3c sys/kern/vfs_bio.c:-1
writedisklabel(d02,ffffffff83064980,ffff800000039000) at writedisklabel+0x4b sys/arch/amd64/amd64/disksubr.c:133
sdioctl(d01,84946467,ffff80000161b000,3,ffff800031cc8a88) at sdioctl+0x959 sys/scsi/sd.c:919
VOP_IOCTL(fffffd80719c9c28,84946467,ffff80000161b000,3,fffffd8007ffd548,ffff800031cc8a88) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cc7ef00,84946467,ffff80000161b000,ffff800031cc8a88) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537
sys_ioctl(ffff800031cc8a88,ffff80003c91d180,ffff80003c91d0d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff80003c91d180) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c91d180) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe0e3f43e1a0, 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(0xfffffd806d4512f8, 0x8, 0, 2) -> e
ddb> trace
softclock(0) at softclock+0xe7 sys/kern/kern_timeout.c:784
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
buf_get(0,0,ffd000) at buf_get+0x5de sys/kern/vfs_bio.c:1170
geteblk(ffd000) at geteblk+0x3c sys/kern/vfs_bio.c:-1
writedisklabel(d02,ffffffff83064980,ffff800000039000) at writedisklabel+0x4b sys/arch/amd64/amd64/disksubr.c:133
sdioctl(d01,84946467,ffff80000161b000,3,ffff800031cc8a88) at sdioctl+0x959 sys/scsi/sd.c:919
VOP_IOCTL(fffffd80719c9c28,84946467,ffff80000161b000,3,fffffd8007ffd548,ffff800031cc8a88) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cc7ef00,84946467,ffff80000161b000,ffff800031cc8a88) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537
sys_ioctl(ffff800031cc8a88,ffff80003c91d180,ffff80003c91d0d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff80003c91d180) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c91d180) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe0e3f43e1a0, count: -13
ddb> show registers
rdi 0xffffffff
rsi 0xd
rbp 0xffff80003c91ca20
rbx 0x1
rdx 0xffff8000015e31c0
rcx 0xffffffff83a16fb0 timeout_todo
rax 0
r8 0xffff80002c8aa060
r9 0x21
r10 0x5af7510ab1ddd59c
r11 0x9243312be80570bb
r12 0xffffffff
r13 0xffff80002a736b00
r14 0
r15 0xffff80002a7672d0
rip 0xffffffff81c879b7 softclock+0xe7
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c91c9e0
ss 0x10
softclock+0xe7: movq %rcx,0x8(%rax)
ddb> show proc
PROC (syz-executor) tid=407211 pid=85816 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=86, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800031cc87f0,0xffffffff83a28f68
process=0xffff8000ffffba98 user=0xffff80003c918000, vmspace=0xfffffd806d4512f8
estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
85816 121212 0 0 3 0x80 fsleep syz-executor
*85816 407211 0 0 7 0x4000000 syz-executor
4984 272736 0 0 3 0x80 fsleep syz-executor
4984 499605 0 0 3 0x4000080 piperd syz-executor
82293 106255 0 0 3 0x80 fsleep syz-executor
82293 27308 0 0 3 0x4000080 sbwait syz-executor
5717 190627 0 0 3 0x80 fsleep syz-executor
5717 460025 0 0 3 0x4000080 lockf syz-executor
96718 517571 61724 0 3 0x80 fsleep syz-executor
96718 201685 61724 0 3 0x4000080 sbwait syz-executor
6004 424441 0 0 3 0x80 fsleep syz-executor
6004 414129 0 0 3 0x4000080 netacc syz-executor
38907 423302 0 0 3 0x80 fsleep syz-executor
38907 90803 0 0 3 0x4000080 fifor syz-executor
61724 236382 0 0 2 0xc82 syz-executor
46415 448247 1 0 3 0x100083 ttyin getty
88804 208886 0 0 3 0x14200 acct acct
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11041 12131K 12574K 166960K 12810 0
pcb 17 13K 14K 166960K 222 0
rtable 244 9K 9K 166960K 440 0
pf 35 14K 93K 166960K 78 0
ifaddr 41 7K 7K 166960K 56 0
ifgroup 47 1K 2K 166960K 73 0
sysctl 4 1K 9K 166960K 11 0
counters 33 17K 18K 166960K 40 0
ioctlops 1 2K 4K 166960K 304 0
iov 0 0K 12K 166960K 91 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1361 86K 86K 166960K 2104 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 6 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 47 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 81K 166960K 751 0
sigio 0 0K 0K 166960K 5 0
proc 60 59K 100K 166960K 608 0
subproc 72 4K 4K 166960K 81 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 48 0
in_multi 95 7K 7K 166960K 126 0
ether_multi 1 0K 0K 166960K 3 0
mrt 0 0K 0K 166960K 21 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 73 334K 334K 166960K 73 0
exec 0 0K 1K 166960K 434 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 214 150K 168K 166960K 7962 0
UVM aobj 14 2K 2K 166960K 15 0
pinsyscall 39 78K 88K 166960K 1905 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 22 0
NDP 11 0K 1K 166960K 35 0
temp 75 9116K 9180K 166960K 20162 0
kqueue 14 22K 29K 166960K 124 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 61 0 58 1 0 1 1 0 8 0
rtentry 136 132 0 25 4 0 4 4 0 8 0
unpcb 144 498 0 479 6 0 6 6 0 8 5
syncache 336 7 0 7 1 0 1 1 0 8 1
tcpqe 32 1 0 1 1 0 1 1 0 8 1
tcpcb 736 268 0 262 7 0 7 7 0 8 6
arp 96 20 0 2 1 0 1 1 0 8 0
ipq 40 2 0 0 1 0 1 1 0 8 0
ipqe 40 2 0 0 1 0 1 1 0 8 0
inpcb 328 855 0 843 7 0 7 7 0 8 5
ip6q 72 2 0 1 1 0 1 1 0 8 0
ip6af 40 2 0 2 1 0 1 1 0 8 1
nd6 112 34 0 10 1 0 1 1 0 8 0
pkpcb 40 3 0 3 1 0 1 1 0 8 1
kcovpl 48 9 0 1 1 0 1 1 0 8 0
ppxss 1072 3 0 3 1 0 1 1 0 8 1
pppxif 1416 1 0 1 1 0 1 1 0 8 1
pfstscr 40 10 0 8 1 0 1 1 0 8 0
pfrktable 1344 3 0 1 1 0 1 1 0 8 0
pfsrclim 320 1 0 1 1 0 1 1 0 8 1
pfstlim 224 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 2 0 1 1 0 1 1 0 8 0
pftag 88 1 0 0 1 0 1 1 0 8 0
pfqueue 320 1 0 0 1 0 1 1 0 8 0
pfstitem 24 2 0 0 1 0 1 1 0 8 0
pfstkey 128 10 0 8 1 0 1 1 0 8 0
pfstate 384 5 0 4 1 0 1 1 0 8 0
pfrule 1360 9 0 7 1 0 1 1 0 8 0
rttmr 136 2 0 2 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 579 0 124 32 0 32 32 0 8 3
art_table 40 580 0 124 6 0 6 6 0 8 1
art_node 32 132 0 34 1 0 1 1 0 8 0
sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0
semupl 112 3 0 3 1 0 1 1 0 8 1
semapl 64 42 0 32 1 0 1 1 0 8 0
shmpl 112 12 0 1 1 0 1 1 0 8 0
dirhash 1024 27 0 10 3 0 3 3 0 8 0
dirhash: pool(0xffffffff83a26428:dirhash): free list modified: page 0xffff80002a778000; item ordinal 0; addr 0xffff80002a779000 (p 0xfffffd806e9f4000); offset 0x0=0x0
pool(dirhash): free list modified: page 0xffff80002a778000; item ordinal 0; addr 0xffff80002a779000 (p 0xfffffd806e9f4000); offset 0x0=0x0
dirhash: pool(0xffffffff83a26428:dirhash): page inconsistency: page 0xffff80002a778000; item ordinal 1; addr 0xea2fa1c6f6cb547f
dino2pl 256 2616 0 1155 92 0 92 92 0 8 0
ffsino 256 2616 0 1155 92 0 92 92 0 8 0
nchpl 144 3728 0 2030 64 0 64 64 0 8 0
vnodes 216 3242 0 0 181 0 181 181 0 8 0
namei 1024 11983 0 11983 2 0 2 2 0 8 2
namei: pool(0xffffffff83a075c0:namei): free list modified: page 0xffff80002a748000; item ordinal 0; addr 0xffff80002a749c00 (p 0xfffffd807f7e2000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a748000; item ordinal 0; addr 0xffff80002a749c00 (p 0xfffffd807f7e2000); offset 0x0=0x0
namei: pool(0xffffffff83a075c0:namei): page inconsistency: page 0xffff80002a748000; item ordinal 1; addr 0x8b1eef1b6225096d
pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0
kstatmem 264 35 0 12 2 0 2 2 0 8 0
scsiplug 72 2 0 2 1 0 1 1 0 8 1
scxspl 216 17730 0 17730 8 0 8 8 1 8 8
plimitpl 152 250 0 233 1 0 1 1 0 8 0
sigapl 424 1051 0 1007 6 0 6 6 0 8 1
knotepl 120 25998 0 25946 17 7 10 17 0 8 8
kqueuepl 184 154 0 144 1 0 1 1 0 8 0
pipepl 304 223 0 195 3 0 3 3 0 8 0
fdescpl 448 1037 0 1007 4 0 4 4 0 8 0
filepl 120 5722 0 5501 14 0 14 14 0 8 6
lockfpl 104 407 0 403 1 0 1 1 0 8 0
lockfspl 48 90 0 87 1 0 1 1 0 8 0
sessionpl 144 41 0 32 1 0 1 1 0 8 0
pgrppl 48 59 0 42 1 0 1 1 0 8 0
ucredpl 104 767 0 755 1 0 1 1 0 8 0
zombiepl 144 1008 0 1007 1 0 1 1 0 8 0
processpl 1152 1051 0 1007 4 0 4 4 0 8 0
processpl: pool(0xffffffff83a29188:processpl): page inconsistency: page 0x0; at page head addr 0xffff80002a747f90 (p 0xffff80002a744000)
procpl 664 1947 0 1896 6 0 6 6 0 8 1
procpl: pool(0xffffffff83a28fd0:procpl): page inconsistency: page 0x0; at page head addr 0xffff80002a6edf90 (p 0xffff80002a6ec000)
procpl: pool(0xffffffff83a28fd0:procpl): page inconsistency: page 0x0; at page head addr 0xffff80002a737f90 (p 0xffff80002a736000)
sosppl 176 3 0 3 1 0 1 1 0 8 1
sockpl 552 1438 0 1404 14 4 10 14 0 8 7
mcl64k 65536 42 0 41 1 0 1 1 0 8 0
mcl8k 8192 17 0 17 1 0 1 1 0 8 1
mcl4k 4096 3418 0 3363 14 0 14 14 0 8 7
mcl2k 2048 641 0 640 3 0 3 3 0 8 2
mtagpl 96 5 0 5 1 0 1 1 0 8 1
mbufpl 256 10260 0 10088 15 0 15 15 0 8 2
bufpl 280 6342 0 126 445 0 445 445 0 8 0
anonpl 24 159646 0 156140 45 0 45 45 0 186 13
amapchunkpl 152 26310 0 25866 28 0 28 28 0 158 9
amappl16 200 2780 0 2731 18 4 14 15 0 8 8
amappl15 192 11 0 10 1 0 1 1 0 8 0
amappl14 184 425 0 424 1 0 1 1 0 8 0
amappl13 176 127 0 116 1 0 1 1 0 8 0
amappl12 168 1279 0 1250 2 0 2 2 0 8 0
amappl11 160 5 0 5 1 0 1 1 0 8 1
amappl10 152 82 0 72 1 0 1 1 0 8 0
amappl9 144 272 0 272 1 0 1 1 0 8 1
amappl8 136 123 0 121 1 0 1 1 0 8 0
amappl7 128 166 0 154 1 0 1 1 0 8 0
amappl6 120 159 0 157 1 0 1 1 0 8 0
amappl5 112 108 0 97 1 0 1 1 0 8 0
amappl4 104 279 0 262 1 0 1 1 0 8 0
amappl3 96 5324 0 5218 4 0 4 4 0 8 1
amappl2 88 570 0 515 2 0 2 2 0 8 0
amappl1 80 13647 0 13094 15 0 15 15 0 8 2
amappl 88 7144 0 6993 4 0 4 4 0 92 0
uvmvnodes 80 111 0 0 3 0 3 3 0 8 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 2 0 1 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 254 0 254 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 14 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1037 0 1007 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1037 0 1007 1 0 1 1 0 8 0
vmmpekpl 168 9988 0 9957 2 0 2 2 0 8 0
vmmpepl 168 73256 0 71419 92 0 92 92 0 357 7
vmsppl 368 1036 0 1007 4 0 4 4 0 8 1
rwobjpl 40 21969 0 20990 13 0 13 13 0 8 0
pdppl 4096 2080 0 2014 92 22 70 74 0 8 4
pvpl 32 445880 0 436094 115 0 115 115 0 265 24
pmappl 216 1036 0 1007 2 0 2 2 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 368 0 22 10 0 10 10 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
softclock(0) at softclock+0xe7 sys/kern/kern_timeout.c:784
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
buf_get(0,0,ffd000) at buf_get+0x5de sys/kern/vfs_bio.c:1170
geteblk(ffd000) at geteblk+0x3c sys/kern/vfs_bio.c:-1
writedisklabel(d02,ffffffff83064980,ffff800000039000) at writedisklabel+0x4b sys/arch/amd64/amd64/disksubr.c:133
sdioctl(d01,84946467,ffff80000161b000,3,ffff800031cc8a88) at sdioctl+0x959 sys/scsi/sd.c:919
VOP_IOCTL(fffffd80719c9c28,84946467,ffff80000161b000,3,fffffd8007ffd548,ffff800031cc8a88) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cc7ef00,84946467,ffff80000161b000,ffff800031cc8a88) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537
sys_ioctl(ffff800031cc8a88,ffff80003c91d180,ffff80003c91d0d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff80003c91d180) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c91d180) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe0e3f43e1a0, count: -13
ddb> machine ddbcpu 1
No such command
ddb> trace
softclock(0) at softclock+0xe7 sys/kern/kern_timeout.c:784
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
buf_get(0,0,ffd000) at buf_get+0x5de sys/kern/vfs_bio.c:1170
geteblk(ffd000) at geteblk+0x3c sys/kern/vfs_bio.c:-1
writedisklabel(d02,ffffffff83064980,ffff800000039000) at writedisklabel+0x4b sys/arch/amd64/amd64/disksubr.c:133
sdioctl(d01,84946467,ffff80000161b000,3,ffff800031cc8a88) at sdioctl+0x959 sys/scsi/sd.c:919
VOP_IOCTL(fffffd80719c9c28,84946467,ffff80000161b000,3,fffffd8007ffd548,ffff800031cc8a88) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cc7ef00,84946467,ffff80000161b000,ffff800031cc8a88) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537
sys_ioctl(ffff800031cc8a88,ffff80003c91d180,ffff80003c91d0d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff80003c91d180) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c91d180) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe0e3f43e1a0, count: -13