panic: missing alias
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 96846 34013 0 0x2 0 0 syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342eb85) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff880673a02c0,ffff80002a761768) at vgonel+0x663
vrecycle(fffff880673a02c0,ffff80002a761768) at vrecycle+0x7c sys/kern/vfs_subr.c:1152
ufs_inactive(ffff80002a7e2cf0) at ufs_inactive+0x359 sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffff880673a02c0,ffff80002a761768) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498
vput(fffff880673a02c0) at vput+0xdc sys/kern/vfs_subr.c:795
VOP_REMOVE(fffff8806ca751e0,fffff880673a02c0,ffff80002a7e2e58) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff80002a761768,ffffff9c,7462fb7a15f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1843
syscall(ffff80002a7e2fc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7e2fc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7462fb7a1aa0, count: 4
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(ffffffff8342eb85) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff880673a02c0,ffff80002a761768) at vgonel+0x663
vrecycle(fffff880673a02c0,ffff80002a761768) at vrecycle+0x7c sys/kern/vfs_subr.c:1152
ufs_inactive(ffff80002a7e2cf0) at ufs_inactive+0x359 sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffff880673a02c0,ffff80002a761768) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498
vput(fffff880673a02c0) at vput+0xdc sys/kern/vfs_subr.c:795
VOP_REMOVE(fffff8806ca751e0,fffff880673a02c0,ffff80002a7e2e58) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff80002a761768,ffffff9c,7462fb7a15f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1843
syscall(ffff80002a7e2fc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7e2fc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7462fb7a1aa0, count: -11
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a7e2b30
rbx 0xfffff880673a02c0
rdx 0
rcx 0
rax 0xffff80002a761768
r8 0x101010101010101
r9 0x8080808080808080
r10 0xf50e37d8278c472
r11 0xa37ac424b1f6d833
r12 0
r13 0xd04
r14 0
r15 0x1
rip 0xffffffff82ca9f95 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a7e2b20
ss 0
db_enter+0x25: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor) tid=96846 pid=34013 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a75d770,0xffff80002a75c2c0
process=0xffff8000370ded68 user=0xffff80002a7de000, vmspace=0xfffff8806d17be70
estcpu=36, cpticks=8, pctcpu=0.0, user=2, sys=6, intr=0
ddb> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
34463 461602 25956 0 2 0x1044 0 syz-executor
6250 220616 33996 60929 2 0x10 0 syz-executor
6250 488327 33996 60929 3 0x10 0x4000080 nanoslp syz-executor
6250 484826 33996 60929 3 0x10 0x4000080 fsleep syz-executor
6250 202186 33996 60929 3 0x10 0x4000080 fsleep syz-executor
6250 274540 33996 60929 3 0x10 0x4000080 fsleep syz-executor
25956 126929 47184 0 3 0x82 0 ppwait syz-executor
60369 228065 47184 0 2 0x2 0 syz-executor
94045 507913 1 0 3 0x100003 0x80 ttyin getty
23410 214238 47184 0 3 0x2 0x80 piperd syz-executor
33996 334562 47184 0 3 0x2 0x80 nanoslp syz-executor
13568 123035 47184 0 2 0x2 0 syz-executor
*34013 96846 47184 0 7 0x2 0 syz-executor
76477 457988 47184 0 3 0x2 0x80 piperd syz-executor
47184 128130 83874 0 3 0x2 0x80 nanoslp syz-executor
83874 408174 71104 0 3 0x100002 0x88 sigsusp ksh
71104 396043 81304 0 3 0x10 0x88 kqread sshd-session
81304 177191 97088 0 3 0x12 0x80 kqread sshd-session
97088 210420 1 0 3 0 0x88 kqread sshd
14575 414522 95613 73 3 0x1100010 0x80 kqread syslogd
95613 184976 1 0 3 0x100002 0x80 sbwait syslogd
41554 247146 1 0 3 0x100000 0x80 kqread resolvd
68611 300273 85894 77 3 0x100012 0x80 kqread dhcpleased
70036 59455 85894 77 3 0x100012 0x80 kqread dhcpleased
85894 270933 1 0 3 0 0x80 kqread dhcpleased
892 150275 0 0 3 0x14000 0x200 bored smr
64944 209255 0 0 2 0x14000 0x200 zerothread
91054 64852 0 0 3 0x14000 0x200 aiodoned aiodoned
13967 259346 0 0 3 0x14000 0x200 syncer update
43346 376884 0 0 3 0x14000 0x200 cleaner cleaner
26889 251254 0 0 3 0x14000 0x200 reaper reaper
68620 159525 0 0 3 0x14000 0x200 pgdaemon pagedaemon
75724 309748 0 0 3 0x14000 0x200 bored viomb
63682 432611 0 0 3 0x14000 0x40000200 acpi0 acpi0
74433 47920 0 0 3 0x14000 0x200 bored softnet0
4290 514736 0 0 3 0x14000 0x200 bored systqmp
51722 480886 0 0 3 0x14000 0x200 bored systq
50 117776 0 0 3 0x14000 0x40000200 tmoslp softclock
42462 264460 0 0 3 0x14000 0x40000200 idle0
1 329370 0 0 3 0x2 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 11061 12114K 12449K 166960K 13387 0
pcb 17 18K 20K 166960K 266 0
rtable 216 9K 10K 166960K 2483 0
pf 31 13K 653K 166960K 239 0
ifaddr 35 6K 8K 166960K 346 0
ifgroup 46 2K 2K 166960K 392 0
sysctl 4 1K 9K 166960K 46 0
counters 32 17K 18K 166960K 133 0
ioctlops 0 0K 4K 166960K 437 0
iov 0 0K 16K 166960K 111 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1357 85K 86K 166960K 3386 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 17K 166960K 19 0
VM map 2 1K 1K 166960K 2 0
sem 27 1K 2K 166960K 117 0
dirhash 15 2K 2K 166960K 27 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 11 37K 97K 166960K 2174 0
sigio 0 0K 0K 166960K 8 0
proc 62 59K 124K 166960K 2710 0
subproc 63 3K 4K 166960K 694 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 92 0
in_multi 77 5K 7K 166960K 898 0
ether_multi 1 0K 0K 166960K 6 0
mrt 0 0K 0K 166960K 55 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 241 1076K 1076K 166960K 241 0
exec 1 0K 1K 166960K 1298 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 169 141K 162K 166960K 17953 0
UVM aobj 86 5K 13K 166960K 94 0
pinsyscall 33 66K 96K 166960K 5070 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 49 0
NDP 10 0K 2K 166960K 252 0
temp 42 9115K 9179K 166960K 61721 0
kqueue 13 20K 34K 166960K 206 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 120 270 0 267 1 0 1 1 0 8 0
rtentry 136 872 0 784 4 0 4 4 0 8 0
unpcb 144 729 0 714 2 1 1 2 0 8 0
syncache 336 11 0 11 2 2 0 1 0 8 0
tcpqe 32 1 0 1 1 1 0 1 0 8 0
tcpcb 736 236 0 232 2 0 2 2 0 8 1
arp 96 157 0 143 1 0 1 1 0 8 0
ipq 40 5 0 4 1 0 1 1 0 8 0
ipqe 40 6 0 5 1 0 1 1 0 8 0
inpcb 328 1365 0 1358 20 11 9 18 0 8 8
ip6q 80 1 0 1 1 1 0 1 0 8 0
ip6af 40 3 0 3 1 1 0 1 0 8 0
nd6 112 230 0 212 1 0 1 1 0 8 0
pkpcb 40 5 0 5 2 2 0 1 0 8 0
kcovpl 48 77 0 70 1 0 1 1 0 8 0
ppxss 1072 22 0 22 3 2 1 1 0 8 1
pppxif 1416 3 0 3 1 0 1 1 0 8 1
pfrktable 1344 3 0 1 1 0 1 1 0 8 0
pfsrclim 320 6 0 5 1 0 1 1 0 8 0
pfrule 1360 13 0 9 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 3532 0 3156 34 4 30 30 0 8 0
art_table 40 3533 0 3156 5 0 5 5 0 8 0
art_node 32 869 0 789 1 0 1 1 0 8 0
sysvmsgpl 40 8 0 7 3 2 1 1 0 8 0
semapl 72 113 0 88 1 0 1 1 0 8 0
shmpl 120 85 0 2 3 0 3 3 0 8 0
dirhash 1024 27 0 8 3 0 3 3 0 8 0
dino2pl 256 3861 0 2253 101 0 101 101 0 8 0
ffsino 256 3861 0 2253 101 0 101 101 0 8 0
nchpl 144 5445 0 3453 75 0 75 75 0 8 0
rtmask 32 3 0 3 1 1 0 1 0 8 0
vnodes 216 5294 0 0 295 0 295 295 0 8 0
namei 1024 28540 0 28535 7 4 3 4 0 8 2
vcpupl 3968 96 0 96 10 8 2 8 0 8 2
vmpool 808 6 0 6 2 1 1 1 0 8 1
kstatmem 264 201 0 180 2 0 2 2 0 8 0
scsiplug 72 3 0 3 2 1 1 1 0 8 1
scxspl 216 20853 0 20853 11 9 2 8 1 8 2
plimitpl 152 383 0 367 1 0 1 1 0 8 0
sigapl 424 2359 0 2323 10 4 6 8 0 8 1
knotepl 120 64748 0 64701 26 17 9 11 0 8 7
kqueuepl 184 456 0 447 6 3 3 4 0 8 2
pipepl 304 442 0 415 3 0 3 3 0 8 0
fdescpl 448 2325 0 2302 5 1 4 5 0 8 0
filepl 120 11789 0 11598 17 4 13 13 0 8 5
lockfpl 104 343 0 340 1 0 1 1 0 8 0
lockfspl 48 158 0 155 1 0 1 1 0 8 0
sessionpl 144 171 0 163 1 0 1 1 0 8 0
pgrppl 48 248 0 233 1 0 1 1 0 8 0
ucredpl 104 1915 0 1902 1 0 1 1 0 8 0
zombiepl 144 2641 0 2641 1 0 1 1 0 8 1
processpl 1160 2359 0 2323 5 1 4 5 0 8 0
procpl 664 4027 0 3987 8 2 6 7 0 8 0
sosppl 176 17 0 17 3 2 1 1 0 8 1
sockpl 552 2420 0 2395 20 10 10 17 0 8 8
mcl64k 65536 109 0 109 2 1 1 1 0 8 1
mcl16k 16384 61 0 61 3 2 1 1 0 8 1
mcl12k 12288 32 0 32 3 2 1 1 0 8 1
mcl9k128 9344 5 0 5 2 1 1 1 0 8 1
mcl8k 8192 72 0 72 3 2 1 1 0 8 1
mcl4k 4096 4151 0 4094 16 7 9 14 0 8 1
mcl2k2 2112 8 0 8 2 1 1 1 0 8 1
mcl2k 2048 2031 0 2031 8 6 2 4 0 8 2
mextrefs 64 1121 0 1121 3 2 1 1 0 8 1
mtagpl 96 4 0 4 1 1 0 1 0 8 0
mbufpl 256 19972 0 19816 19 5 14 17 0 8 2
bufpl 272 6851 0 635 415 0 415 415 0 8 0
anonpl 24 264793 0 262092 78 35 43 45 0 187 11
amapchunkpl 152 54729 0 54422 39 14 25 28 0 158 6
amappl16 200 3481 0 3464 36 24 12 15 0 8 8
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 1226 0 1225 1 0 1 1 0 8 0
amappl13 176 279 0 269 1 0 1 1 0 8 0
amappl12 168 2842 0 2821 2 0 2 2 0 8 0
amappl11 160 19 0 19 1 1 0 1 0 8 0
amappl10 152 60 0 50 1 0 1 1 0 8 0
amappl9 144 285 0 285 1 1 0 1 0 8 0
amappl8 136 370 0 369 1 0 1 1 0 8 0
amappl7 128 295 0 283 1 0 1 1 0 8 0
amappl6 120 829 0 827 1 0 1 1 0 8 0
amappl5 112 101 0 92 1 0 1 1 0 8 0
amappl4 104 473 0 458 1 0 1 1 0 8 0
amappl3 96 10014 0 9954 3 0 3 3 0 8 0
amappl2 88 2193 0 2129 2 0 2 2 0 8 0
amappl1 80 23261 0 22746 13 1 12 13 0 8 0
amappl 88 15956 0 15848 5 0 5 5 0 92 0
uvmvnodes 80 129 0 0 3 0 3 3 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
dma256 256 8 0 8 2 2 0 1 0 8 0
dma128 128 255 0 255 2 2 0 1 0 8 0
dma64 64 8 0 8 2 2 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 93 0 8 2 0 2 2 0 8 0
uaddrrnd 24 2325 0 2302 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2325 0 2302 1 0 1 1 0 8 0
vmmpekpl 168 18661 0 18599 3 0 3 3 0 8 0
vmmpepl 168 152504 0 151080 101 17 84 90 0 357 5
vmsppl 368 2324 0 2302 4 1 3 4 0 8 0
rwobjpl 40 41485 0 40505 15 1 14 14 0 8 1
pdppl 4096 4668 0 4616 168 104 64 82 0 8 12
pvpl 32 881413 0 874223 142 43 99 115 0 265 9
pmappl 216 2330 0 2308 3 0 3 3 0 8 1
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 901 0 143 22 0 22 22 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(ffffffff8342eb85) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff880673a02c0,ffff80002a761768) at vgonel+0x663
vrecycle(fffff880673a02c0,ffff80002a761768) at vrecycle+0x7c sys/kern/vfs_subr.c:1152
ufs_inactive(ffff80002a7e2cf0) at ufs_inactive+0x359 sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffff880673a02c0,ffff80002a761768) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498
vput(fffff880673a02c0) at vput+0xdc sys/kern/vfs_subr.c:795
VOP_REMOVE(fffff8806ca751e0,fffff880673a02c0,ffff80002a7e2e58) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff80002a761768,ffffff9c,7462fb7a15f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1843
syscall(ffff80002a7e2fc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7e2fc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7462fb7a1aa0, count: -11
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342eb85) at panic+0x1cf sys/kern/subr_prf.c:198
vgonel(fffff880673a02c0,ffff80002a761768) at vgonel+0x663
vrecycle(fffff880673a02c0,ffff80002a761768) at vrecycle+0x7c sys/kern/vfs_subr.c:1152
ufs_inactive(ffff80002a7e2cf0) at ufs_inactive+0x359 sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffff880673a02c0,ffff80002a761768) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498
vput(fffff880673a02c0) at vput+0xdc sys/kern/vfs_subr.c:795
VOP_REMOVE(fffff8806ca751e0,fffff880673a02c0,ffff80002a7e2e58) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff80002a761768,ffffff9c,7462fb7a15f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1843
syscall(ffff80002a7e2fc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7e2fc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7462fb7a1aa0, count: -11