panic: missing alias
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*295500 58082 0 0x2 0 0 getty
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8344fe64) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff90072dc75e8,ffff80002a7e1cb8) at vgonel+0x663
checkalias(fffff90072a601b8,800,ffff800000c69400) at checkalias+0x1af sys/kern/vfs_subr.c:582
ffs_vinit(ffff800000c69400,ffff80003594aa10) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c69400,133b3,ffff80003594aae0) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffff90009891360,ffff80003594ad70,ffff80003594ada0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003594ad40) at vfs_lookup+0x9ca sys/kern/vfs_lookup.c:585
namei(ffff80003594ad40) at namei+0x7bf sys/kern/vfs_lookup.c:250
dofchownat(ffff80002a7e1cb8,ffffff9c,346246c52b0,0,0,0) at dofchownat+0xeb sys/kern/vfs_syscalls.c:2427
syscall(ffff80003594afd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003594afd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7116ef7df460, 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: missing alias
ddb> show kasan
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8344fe64) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff90072dc75e8,ffff80002a7e1cb8) at vgonel+0x663
checkalias(fffff90072a601b8,800,ffff800000c69400) at checkalias+0x1af sys/kern/vfs_subr.c:582
ffs_vinit(ffff800000c69400,ffff80003594aa10) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c69400,133b3,ffff80003594aae0) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffff90009891360,ffff80003594ad70,ffff80003594ada0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003594ad40) at vfs_lookup+0x9ca sys/kern/vfs_lookup.c:585
namei(ffff80003594ad40) at namei+0x7bf sys/kern/vfs_lookup.c:250
dofchownat(ffff80002a7e1cb8,ffffff9c,346246c52b0,0,0,0) at dofchownat+0xeb sys/kern/vfs_syscalls.c:2427
syscall(ffff80003594afd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003594afd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7116ef7df460, count: -13
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80003594a7f0
rbx 0xfffff90072dc75e8
rdx 0
rcx 0
rax 0xffff80002a7e1cb8
r8 0x101010101010101
r9 0x8080808080808080
r10 0x975fd247ee9a0d70
r11 0x9f6d0c9097c83949
r12 0
r13 0x6000 __ALIGN_SIZE+0x5000
r14 0
r15 0x1
rip 0xffffffff813214f5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80003594a7e0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb> show proc
PROC (getty) tid=295500 pid=58082 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=50, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a7e0d28,0xffffffff83a68bd8
process=0xffff8000388c9fd0 user=0xffff800035946000, vmspace=0xfffff9007efe8458
estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
*58082 295500 1 0 7 0x2 0 getty
94463 317056 49188 0 2 0x100002 0 sh
52214 474049 8734 0 3 0x2 0 clonelk ifconfig
8734 240422 26307 0 3 0x100002 0x88 sigsusp sh
97956 192724 91239 0 3 0x2 0 clonelk ifconfig
91239 143606 21191 0 3 0x100002 0x88 sigsusp sh
21191 293691 47762 0 3 0x2 0x80 wait syz-executor
26307 206661 47762 0 3 0x2 0x80 wait syz-executor
6027 412361 47762 0 3 0x2 0x80 piperd syz-executor
49188 376573 47762 0 3 0x2 0x80 wait syz-executor
86204 97057 47762 0 3 0x2 0x80 nanoslp syz-executor
13743 23563 47762 0 3 0x2 0x80 piperd syz-executor
17594 98120 0 0 3 0x14000 0x280 nfsidl nfsio
72066 423173 0 0 3 0x14000 0x280 nfsidl nfsio
28110 172538 0 0 3 0x14000 0x280 nfsidl nfsio
15160 379709 0 0 3 0x14000 0x280 nfsidl nfsio
91471 29734 0 0 3 0x14000 0x280 nfsidl nfsio
11471 268079 0 0 3 0x14000 0x280 nfsidl nfsio
17407 93761 0 0 3 0x14000 0x280 nfsidl nfsio
40890 473746 0 0 3 0x14000 0x280 nfsidl nfsio
46091 407945 0 0 3 0x14000 0x280 nfsidl nfsio
6123 176126 0 0 3 0x14000 0x280 nfsidl nfsio
93609 453725 0 0 3 0x14000 0x280 nfsidl nfsio
70008 348092 0 0 3 0x14000 0x280 nfsidl nfsio
93384 140076 0 0 3 0x14000 0x280 nfsidl nfsio
80738 200275 0 0 3 0x14000 0x280 nfsidl nfsio
6303 259557 0 0 3 0x14000 0x280 nfsidl nfsio
36629 450086 0 0 3 0x14000 0x280 nfsidl nfsio
96947 470090 0 0 3 0x14000 0x280 nfsidl nfsio
52146 113506 0 0 3 0x14000 0x280 nfsidl nfsio
78390 111604 0 0 3 0x14000 0x280 nfsidl nfsio
43777 491277 0 0 3 0x14000 0x280 nfsidl nfsio
47762 350871 57784 0 3 0x2 0x80 nanoslp syz-executor
57784 369461 1292 0 3 0x100002 0x88 sigsusp ksh
1292 100717 80240 0 3 0x10 0x88 kqread sshd-session
80240 77871 81366 0 3 0x12 0x80 kqread sshd-session
81366 244403 1 0 3 0 0x88 kqread sshd
42744 253215 45379 73 3 0x1100010 0x80 kqread syslogd
45379 518878 1 0 3 0x100002 0x80 sbwait syslogd
42011 328534 1 0 3 0x100000 0x80 kqread resolvd
97477 104079 65237 77 3 0x100012 0x80 kqread dhcpleased
65081 375180 65237 77 3 0x100012 0x80 kqread dhcpleased
65237 431451 1 0 3 0 0x80 kqread dhcpleased
55100 97477 0 0 3 0x14000 0x200 bored smr
65994 258210 0 0 2 0x14000 0x200 zerothread
59589 348008 0 0 3 0x14000 0x200 aiodoned aiodoned
88293 16707 0 0 3 0x14000 0x200 syncer update
85719 27914 0 0 3 0x14000 0x200 cleaner cleaner
51216 252070 0 0 3 0x14000 0x200 reaper reaper
98973 131202 0 0 3 0x14000 0x200 pgdaemon pagedaemon
98107 89087 0 0 3 0x14000 0x200 bored viomb
84420 454126 0 0 3 0x14000 0x40000200 acpi0 acpi0
3575 112701 0 0 3 0x14000 0x200 bored softnet0
61822 219015 0 0 3 0x14000 0x200 smrbar systqmp
88915 149875 0 0 3 0x14000 0x200 bored systq
26041 223440 0 0 3 0x14000 0x40000200 tmoslp softclock
63115 359255 0 0 3 0x14000 0x40000200 idle0
1 391969 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11032 12107K 12257K 166960K 12812 0
pcb 17 12K 12K 166960K 92 0
rtable 133 4K 7K 166960K 2554 0
pf 25 12K 15K 166960K 240 0
ifaddr 27 5K 8K 166960K 355 0
ifgroup 38 1K 2K 166960K 375 0
sysctl 3 1K 9K 166960K 7 0
counters 30 17K 18K 166960K 119 0
ioctlops 0 0K 5K 166960K 363 0
iov 0 0K 12K 166960K 10 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1394 88K 88K 166960K 2498 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 16 0K 1K 166960K 23 0
dirhash 15 2K 2K 166960K 18 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 15 53K 97K 166960K 1551 0
sigio 0 0K 0K 166960K 6 0
proc 74 75K 116K 166960K 2619 0
subproc 63 3K 4K 166960K 756 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 21 0
in_multi 52 3K 7K 166960K 910 0
ether_multi 1 0K 0K 166960K 1 0
mrt 1 0K 0K 166960K 39 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 115 519K 519K 166960K 115 0
exec 0 0K 1K 166960K 1416 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 181 152K 167K 166960K 11948 0
UVM aobj 43 2K 2K 166960K 44 0
pinsyscall 36 72K 96K 166960K 4577 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 8 0
NDP 8 0K 2K 166960K 259 0
temp 34 9118K 9182K 166960K 25383 0
kqueue 13 20K 28K 166960K 93 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 120 208 0 205 1 0 1 1 0 8 0
rtentry 136 916 0 859 4 0 4 4 0 8 0
unpcb 144 549 0 534 6 0 6 6 0 8 5
syncache 336 6 0 6 2 1 1 1 0 8 1
tcpqe 32 2 0 2 1 0 1 1 0 8 1
tcpcb 736 270 0 264 7 0 7 7 0 8 6
arp 96 164 0 154 1 0 1 1 0 8 0
inpcb 328 1132 0 1121 8 1 7 7 0 8 4
ip6q 80 1 0 0 1 0 1 1 0 8 0
nd6 112 244 0 231 1 0 1 1 0 8 0
kcovpl 48 84 0 77 1 0 1 1 0 8 0
ppxss 1072 9 0 9 1 0 1 1 0 8 1
pppxif 1416 1 0 1 1 0 1 1 0 8 1
pfstscr 40 4 0 2 1 0 1 1 0 8 0
pfosfp 40 2 0 1 1 0 1 1 0 8 0
pfosfpen 112 2 0 1 1 0 1 1 0 8 0
pfsrclim 320 1 0 0 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 4 0 2 1 0 1 1 0 8 0
pfstate 384 2 0 1 1 0 1 1 0 8 0
pfrule 1360 3 0 3 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 3691 0 3356 31 1 30 30 0 8 7
art_table 40 3692 0 3356 5 0 5 5 0 8 0
art_node 32 916 0 856 1 0 1 1 0 8 0
sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 72 20 0 6 1 0 1 1 0 8 0
shmpl 120 41 0 1 2 0 2 2 0 8 0
dirhash 1024 21 0 2 3 0 3 3 0 8 0
dino2pl 256 2241 0 623 102 0 102 102 0 8 0
ffsino 256 2241 0 623 102 0 102 102 0 8 0
nchpl 144 2850 0 897 73 0 73 73 0 8 0
vnodes 216 3305 0 0 184 0 184 184 0 8 0
namei 1024 19477 0 19476 5 3 2 3 0 8 1
kstatmem 264 193 0 176 2 0 2 2 0 8 0
scxspl 216 11265 0 11265 10 2 8 8 1 8 8
plimitpl 152 447 0 432 1 0 1 1 0 8 0
sigapl 424 1718 0 1658 9 1 8 8 0 8 0
knotepl 120 14729 0 14682 17 7 10 17 0 8 7
kqueuepl 184 162 0 153 3 0 3 3 0 8 2
pipepl 304 447 0 420 5 0 5 5 0 8 2
fdescpl 448 1685 0 1658 5 1 4 5 0 8 0
filepl 120 7377 0 7188 14 0 14 14 0 8 6
lockfpl 104 140 0 138 1 0 1 1 0 8 0
lockfspl 48 64 0 62 1 0 1 1 0 8 0
sessionpl 144 150 0 143 1 0 1 1 0 8 0
pgrppl 48 239 0 225 1 0 1 1 0 8 0
ucredpl 104 786 0 775 1 0 1 1 0 8 0
zombiepl 144 2035 0 2032 2 1 1 1 0 8 0
processpl 1160 1718 0 1658 5 0 5 5 0 8 0
procpl 664 2466 0 2405 7 0 7 7 0 8 0
sockpl 552 1901 0 1872 14 3 11 12 0 8 7
mcl64k 65536 15 0 15 1 0 1 1 0 8 1
mcl16k 16384 3 0 3 1 0 1 1 0 8 1
mcl8k 8192 10 0 10 2 1 1 1 0 8 1
mcl4k 4096 2886 0 2834 15 6 9 15 0 8 1
mcl2k2 2112 33 0 33 1 0 1 1 0 8 1
mcl2k 2048 1752 0 1752 6 2 4 4 0 8 4
mextrefs 64 506 0 506 2 1 1 1 0 8 1
mtagpl 96 5 0 4 2 1 1 1 0 8 0
mbufpl 256 14290 0 14189 20 1 19 19 0 8 5
bufpl 272 3962 0 102 258 0 258 258 0 8 0
anonpl 24 174758 0 171881 44 1 43 43 0 187 13
amapchunkpl 152 32201 0 31879 26 1 25 25 0 158 11
amappl16 200 1441 0 1430 16 5 11 13 0 8 8
amappl15 192 5 0 5 1 1 0 1 0 8 0
amappl14 184 1314 0 1309 1 0 1 1 0 8 0
amappl13 176 287 0 277 1 0 1 1 0 8 0
amappl12 168 2217 0 2193 2 0 2 2 0 8 0
amappl11 160 25 0 25 1 1 0 1 0 8 0
amappl10 152 69 0 59 1 0 1 1 0 8 0
amappl9 144 281 0 281 1 1 0 1 0 8 0
amappl8 136 387 0 384 1 0 1 1 0 8 0
amappl7 128 288 0 277 1 0 1 1 0 8 0
amappl6 120 881 0 875 1 0 1 1 0 8 0
amappl5 112 93 0 85 1 0 1 1 0 8 0
amappl4 104 488 0 471 1 0 1 1 0 8 0
amappl3 96 6326 0 6261 4 1 3 3 0 8 0
amappl2 88 1515 0 1450 2 0 2 2 0 8 0
amappl1 80 20833 0 20292 13 0 13 13 0 8 0
amappl 88 9946 0 9830 5 0 5 5 0 92 1
uvmvnodes 80 101 0 0 3 0 3 3 0 8 0
dma8192 8192 1 0 1 1 0 1 1 0 8 1
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 43 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1685 0 1658 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1685 0 1658 1 0 1 1 0 8 0
vmmpekpl 168 14704 0 14644 4 0 4 4 0 8 0
vmmpepl 168 115270 0 113766 89 3 86 86 0 357 14
vmsppl 368 1684 0 1658 5 1 4 4 0 8 1
rwobjpl 40 33434 0 32487 13 0 13 13 0 8 2
pdppl 4096 3376 0 3316 190 130 60 82 0 8 0
pvpl 32 575991 0 568651 108 2 106 106 0 265 24
pmappl 216 1684 0 1658 3 0 3 3 0 8 1
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 761 0 149 18 0 18 18 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8344fe64) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff90072dc75e8,ffff80002a7e1cb8) at vgonel+0x663
checkalias(fffff90072a601b8,800,ffff800000c69400) at checkalias+0x1af sys/kern/vfs_subr.c:582
ffs_vinit(ffff800000c69400,ffff80003594aa10) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c69400,133b3,ffff80003594aae0) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffff90009891360,ffff80003594ad70,ffff80003594ada0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003594ad40) at vfs_lookup+0x9ca sys/kern/vfs_lookup.c:585
namei(ffff80003594ad40) at namei+0x7bf sys/kern/vfs_lookup.c:250
dofchownat(ffff80002a7e1cb8,ffffff9c,346246c52b0,0,0,0) at dofchownat+0xeb sys/kern/vfs_syscalls.c:2427
syscall(ffff80003594afd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003594afd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7116ef7df460, count: -13
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8344fe64) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff90072dc75e8,ffff80002a7e1cb8) at vgonel+0x663
checkalias(fffff90072a601b8,800,ffff800000c69400) at checkalias+0x1af sys/kern/vfs_subr.c:582
ffs_vinit(ffff800000c69400,ffff80003594aa10) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c69400,133b3,ffff80003594aae0) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffff90009891360,ffff80003594ad70,ffff80003594ada0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003594ad40) at vfs_lookup+0x9ca sys/kern/vfs_lookup.c:585
namei(ffff80003594ad40) at namei+0x7bf sys/kern/vfs_lookup.c:250
dofchownat(ffff80002a7e1cb8,ffffff9c,346246c52b0,0,0,0) at dofchownat+0xeb sys/kern/vfs_syscalls.c:2427
syscall(ffff80003594afd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003594afd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7116ef7df460, count: -13