panic: ffs_valloc: dup alloc
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*187266 53649 0 0x2 0 1K syz-executor
313043 96144 0 0x2 0 0 syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342efd9) at panic+0x1e5 sys/kern/subr_prf.c:198
ffs_inode_alloc(fffffd806cd9d018,41ed,fffffd80097fd478,ffff80002a34de68) at ffs_inode_alloc+0x94e
ufs_mkdir(ffff80002a34ded0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806d3a61f0,ffff80002a34e030,ffff80002a34e060,ffff80002a34df60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
domkdirat(ffff8000fffeea78,ffffff9c,717f8f29c630,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
syscall(ffff80002a34e1e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34e1e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x717f8f29c6d0, count: 7
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: ffs_valloc: dup alloc
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342efd9) at panic+0x1e5 sys/kern/subr_prf.c:198
ffs_inode_alloc(fffffd806cd9d018,41ed,fffffd80097fd478,ffff80002a34de68) at ffs_inode_alloc+0x94e
ufs_mkdir(ffff80002a34ded0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806d3a61f0,ffff80002a34e030,ffff80002a34e060,ffff80002a34df60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
domkdirat(ffff8000fffeea78,ffffff9c,717f8f29c630,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
syscall(ffff80002a34e1e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34e1e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x717f8f29c6d0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a34dbe0
rbx 0xffff8000299aee07
rdx 0
rcx 0xffff8000fffeea78
rax 0xffff8000299adff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x111dbe92112b0e2b
r11 0x580382aa6f5d38b1
r12 0xffff8000299aec08
r13 0
r14 0
r15 0x1
rip 0xffffffff81925ff5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a34dbd0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor) tid=187266 pid=53649 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=0xffff8000fffef4d8,0xffff8000fffee028
process=0xffff8000ffff4008 user=0xffff80002a349000, vmspace=0xfffffd800b0633d0
estcpu=36, cpticks=26, pctcpu=0.16, user=0, sys=8, intr=17
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
39009 94853 34355 0 2 0 syz-executor
39009 79009 34355 0 3 0x4000080 sbwait syz-executor
57756 447953 82357 0 3 0x3000 suspend syz-executor
57756 457408 82357 0 2 0x4081000 syz-executor
77201 252840 50068 0 3 0x80 nanoslp syz-executor
77201 465990 50068 0 3 0x4000080 sbwait syz-executor
41648 492483 9091 0 2 0 syz-executor
41648 214460 9091 0 3 0x4000080 ttybg syz-executor
34355 59585 92704 0 3 0x82 nanoslp syz-executor
*53649 187266 92704 0 7 0x2 syz-executor
96144 313043 92704 0 7 0x2 syz-executor
50068 399652 92704 0 3 0x82 nanoslp syz-executor
82357 309874 92704 0 3 0x82 nanoslp syz-executor
9091 356816 92704 0 3 0x82 nanoslp syz-executor
92704 313426 61097 0 3 0x82 wait syz-executor
61097 99656 38336 0 3 0x10008a sigsusp ksh
38336 514801 57859 0 3 0x98 kqread sshd-session
57859 454213 99006 0 3 0x92 kqread sshd-session
34826 397016 1 0 3 0x100083 ttyin getty
99006 76232 1 0 3 0x88 kqread sshd
4322 216722 63205 74 3 0x1100092 bpf pflogd
63205 338645 1 0 3 0x80 sbwait pflogd
50596 172237 97224 73 3 0x1100090 kqread syslogd
97224 362616 1 0 3 0x100082 sbwait syslogd
37335 367000 1 0 3 0x100080 kqread resolvd
80723 353160 5357 77 3 0x100092 kqread dhcpleased
37577 366954 5357 77 3 0x100092 kqread dhcpleased
5357 131889 1 0 3 0x80 kqread dhcpleased
49754 368225 0 0 3 0x14200 bored smr
43552 375806 0 0 3 0x14200 pgzero zerothread
13496 19944 0 0 3 0x14200 aiodoned aiodoned
37145 479568 0 0 3 0x14200 syncer update
57014 496603 0 0 3 0x14200 cleaner cleaner
97792 208778 0 0 3 0x14200 reaper reaper
52251 31331 0 0 3 0x14200 pgdaemon pagedaemon
55626 270501 0 0 3 0x14200 bored viomb
32927 135860 0 0 3 0x40014200 acpi0 acpi0
86473 241715 0 0 3 0x40014200 idle1
73925 402469 0 0 3 0x14200 bored softnet1
17951 334150 0 0 3 0x14200 bored softnet0
72188 101978 0 0 3 0x14200 bored systqmp
20663 255055 0 0 3 0x14200 bored systq
89113 191180 0 0 3 0x14200 tmoslp softclockmp
3914 50916 0 0 3 0x40014200 tmoslp softclock
31387 40467 0 0 3 0x40014200 idle0
1 352800 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 53649 (syz-executor) thread 0xffff8000fffeea78 (187266)
exclusive rrwlock inode r = 0 (0xfffffd80702896a0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232
#6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
#10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806cd9d0b8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6 namei+0x7ca sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83971d80)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783
#2 Xsyscall+0x128
Process 96144 (syz-executor) thread 0xffff8000ffffd760 (313043)
exclusive rrwlock inode r = 0 (0xfffffd806c58d1f0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vget+0x2a2 sys/kern/vfs_subr.c:686
#6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203
#8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567
#11 namei+0x7ca sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887
#13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806cd9d9f8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6 namei+0x7ca sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11127 12241K 12358K 166960K 12575 0
pcb 17 13K 14K 166960K 165 0
rtable 204 7K 7K 166960K 384 0
pf 35 18K 21K 166960K 74 0
ifaddr 35 6K 7K 166960K 55 0
ifgroup 47 2K 2K 166960K 78 0
sysctl 1 1K 9K 166960K 6 0
counters 66 36K 37K 166960K 92 0
ioctlops 0 0K 4K 166960K 1541 0
iov 0 0K 12K 166960K 16 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1321 83K 83K 166960K 1628 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 5 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 14 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 14 49K 97K 166960K 389 0
sigio 0 0K 0K 166960K 8 0
proc 72 115K 164K 166960K 570 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 0 0K 0K 166960K 30 0
in_multi 77 5K 7K 166960K 106 0
ether_multi 1 0K 0K 166960K 2 0
mrt 0 0K 0K 166960K 10 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 235 1049K 1049K 166960K 235 0
exec 0 0K 1K 166960K 438 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 211 166K 191K 166960K 5408 0
UVM aobj 15 2K 2K 166960K 18 0
pinsyscall 39 78K 105K 166960K 1576 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 12 0
NDP 10 0K 2K 166960K 35 0
temp 41 9075K 9141K 166960K 18913 0
kqueue 14 22K 30K 166960K 59 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 53 0 50 1 0 1 1 0 8 0
rtentry 176 113 0 25 6 1 5 6 0 8 0
unpcb 144 163 0 140 2 0 2 2 0 8 1
syncache 336 8 0 8 2 2 0 1 0 8 0
tcpcb 736 225 0 221 7 2 5 7 0 8 4
arp 136 18 0 4 1 0 1 1 0 8 0
ipq 40 1 0 0 1 0 1 1 0 8 0
ipqe 40 1 0 0 1 0 1 1 0 8 0
inpcb 328 561 0 552 10 3 7 10 0 8 6
nd6 152 24 0 6 1 0 1 1 0 8 0
pkpcb 40 3 0 3 1 1 0 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 8 0 8 1 0 1 1 0 8 1
pppxif 1576 1 0 1 1 0 1 1 0 8 1
pfstscr 40 2 0 0 1 0 1 1 0 8 0
pffrag 232 1 0 0 1 0 1 1 0 482 0
pffrnode 88 1 0 0 1 0 1 1 0 8 0
pffrent 40 2 0 1 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pftag 88 2 0 1 2 1 1 1 0 8 0
pfstitem 24 31 0 4 1 0 1 1 0 8 0
pfstkey 128 33 0 6 1 0 1 1 0 8 0
pfstate 448 29 0 5 4 0 4 4 0 8 0
pfrule 1360 25 0 19 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 458 0 94 29 2 27 29 0 8 0
art_table 40 459 0 94 5 0 5 5 0 8 0
art_node 32 113 0 33 1 0 1 1 0 8 0
sysvmsgpl 40 34 0 0 1 0 1 1 0 8 0
semapl 112 11 0 1 1 0 1 1 0 8 0
shmpl 112 15 0 3 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 2076 0 625 93 0 93 93 0 8 0
ffsino 296 2076 0 625 114 0 114 114 0 8 0
nchpl 144 2625 0 926 64 0 64 64 0 8 0
rtmask 32 3 0 3 2 1 1 1 0 8 1
vnodes 216 2306 0 0 129 0 129 129 0 8 0
namei 1024 8915 0 8914 4 2 2 2 0 8 1
percpumem 16 61 0 13 1 0 1 1 0 8 0
kstatmem 264 40 0 18 3 1 2 3 0 8 0
scsiplug 72 2 0 2 1 0 1 1 0 8 1
scxspl 216 8797 0 8797 11 9 2 8 1 8 2
plimitpl 152 199 0 180 1 0 1 1 0 8 0
sigapl 424 714 0 670 7 1 6 7 0 8 0
knotepl 120 547 0 0 17 0 17 17 0 8 0
kqueuepl 224 89 0 79 1 0 1 1 0 8 0
pipepl 344 141 0 113 3 0 3 3 0 8 0
fdescpl 528 698 0 670 3 0 3 3 0 8 0
filepl 160 3717 0 3455 15 1 14 14 0 8 2
lockfpl 104 90 0 88 1 0 1 1 0 8 0
lockfspl 48 42 0 40 1 0 1 1 0 8 0
sessionpl 144 31 0 21 1 0 1 1 0 8 0
pgrppl 48 42 0 24 1 0 1 1 0 8 0
ucredpl 104 705 0 691 1 0 1 1 0 8 0
zombiepl 144 673 0 670 2 1 1 1 0 8 0
processpl 1232 714 0 670 5 0 5 5 0 8 0
procpl 664 1165 0 1117 6 0 6 6 0 8 0
sosppl 176 3 0 3 2 2 0 1 0 8 0
sockpl 752 788 0 753 14 5 9 13 0 8 5
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 115 0 0 15 0 15 15 0 8 0
mcl2k 2048 21 0 0 3 0 3 3 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 194 0 0 12 0 12 12 0 8 0
bufpl 280 3057 0 105 211 0 211 211 0 8 0
anonpl 32 5858 0 0 48 0 48 48 0 246 0
amapchunkpl 152 16605 0 16204 32 7 25 32 0 158 5
amappl16 200 2201 0 2175 6 3 3 5 0 8 0
amappl15 192 36 0 36 2 2 0 1 0 8 0
amappl14 184 438 0 437 1 0 1 1 0 8 0
amappl13 176 128 0 115 1 0 1 1 0 8 0
amappl12 168 956 0 928 2 0 2 2 0 8 0
amappl11 160 5 0 5 1 1 0 1 0 8 0
amappl10 152 67 0 53 1 0 1 1 0 8 0
amappl9 144 271 0 271 1 1 0 1 0 8 0
amappl8 136 110 0 107 1 0 1 1 0 8 0
amappl7 128 152 0 139 1 0 1 1 0 8 0
amappl6 120 158 0 156 1 0 1 1 0 8 0
amappl5 112 108 0 97 1 0 1 1 0 8 0
amappl4 104 305 0 285 1 0 1 1 0 8 0
amappl3 96 3263 0 3168 5 1 4 4 0 8 0
amappl2 88 568 0 507 2 0 2 2 0 8 0
amappl1 80 11461 0 10864 19 5 14 17 0 8 0
amappl 88 4611 0 4471 5 0 5 5 0 92 0
uvmvnodes 80 110 0 0 3 0 3 3 0 8 0
dma65536 65536 2 0 2 1 1 0 1 0 8 0
dma32768 32768 1 0 1 1 1 0 1 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 128 254 0 254 2 1 1 1 0 8 1
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 17 0 3 1 0 1 1 0 8 0
uaddrrnd 24 698 0 670 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 698 0 670 1 0 1 1 0 8 0
vmmpekpl 168 7737 0 7693 3 1 2 3 0 8 0
vmmpepl 168 53006 0 51249 103 13 90 98 0 357 3
vmsppl 488 697 0 670 5 1 4 5 0 8 0
rwobjpl 80 17843 0 16814 28 3 25 26 0 8 0
pdppl 4096 1403 0 1340 105 34 71 87 0 8 8
pvpl 32 13262 0 0 108 1 107 107 0 265 0
pmappl 256 697 0 670 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 292 0 47 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff8394dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83971580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83971580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83971580,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369
getblk(fffffd800b0756c0,ca980,4000,0,ffffffffffffffff) at getblk+0x197 sys/kern/vfs_bio.c:1013
bread(fffffd800b0756c0,ca980,4000,ffff80002a312110) at bread+0x45 bio_doread sys/kern/vfs_bio.c:418 [inline]
bread(fffffd800b0756c0,ca980,4000,ffff80002a312110) at bread+0x45 sys/kern/vfs_bio.c:463
ffs_update(fffffd806c58d150,1) at ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91
ffs_truncate(fffffd806c58d150,0,4,fffffd80097fd478) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1
ufs_rmdir(ffff80002a3123e0) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd806d3a6a60,fffffd8062bc7a58,ffff80002a3124b8) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000ffffd760,ffffff9c,736e821128e0,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1920
syscall(ffff80002a312630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a312630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
end trace frame: 0xffff80002a3126b0, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff8394dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83971580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83971580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83971580,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369
getblk(fffffd800b0756c0,ca980,4000,0,ffffffffffffffff) at getblk+0x197 sys/kern/vfs_bio.c:1013
bread(fffffd800b0756c0,ca980,4000,ffff80002a312110) at bread+0x45 bio_doread sys/kern/vfs_bio.c:418 [inline]
bread(fffffd800b0756c0,ca980,4000,ffff80002a312110) at bread+0x45 sys/kern/vfs_bio.c:463
ffs_update(fffffd806c58d150,1) at ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91
ffs_truncate(fffffd806c58d150,0,4,fffffd80097fd478) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1
ufs_rmdir(ffff80002a3123e0) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd806d3a6a60,fffffd8062bc7a58,ffff80002a3124b8) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000ffffd760,ffffff9c,736e821128e0,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1920
syscall(ffff80002a312630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a312630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x736e821128d0, count: -15
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x25: addq $0x8,%rsp
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342efd9) at panic+0x1e5 sys/kern/subr_prf.c:198
ffs_inode_alloc(fffffd806cd9d018,41ed,fffffd80097fd478,ffff80002a34de68) at ffs_inode_alloc+0x94e
ufs_mkdir(ffff80002a34ded0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806d3a61f0,ffff80002a34e030,ffff80002a34e060,ffff80002a34df60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
domkdirat(ffff8000fffeea78,ffffff9c,717f8f29c630,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
syscall(ffff80002a34e1e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34e1e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x717f8f29c6d0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8342efd9) at panic+0x1e5 sys/kern/subr_prf.c:198
ffs_inode_alloc(fffffd806cd9d018,41ed,fffffd80097fd478,ffff80002a34de68) at ffs_inode_alloc+0x94e
ufs_mkdir(ffff80002a34ded0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806d3a61f0,ffff80002a34e030,ffff80002a34e060,ffff80002a34df60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
domkdirat(ffff8000fffeea78,ffffff9c,717f8f29c630,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
syscall(ffff80002a34e1e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34e1e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x717f8f29c6d0, count: -8