panic: lock (rwlock) solock not locked
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*399500 52088 0 0x2 0 0K syz-executor1980428307
240013 13139 0 0x12 0 1 sshd
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198
witness_assert(fffffd807829dba8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 soassertlocked sys/kern/uipc_socket2.c:414 [inline]
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 sys/kern/uipc_socket2.c:479
sosplice(fffffd807829d7c0,5,0,0) at sosplice+0x550
sosetopt(fffffd807829d7c0,ffff,1023,fffffd806d346700) at sosetopt+0x7f4
sys_setsockopt(ffff8000212327e8,ffff8000212afdd8,ffff8000212afe20) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233
syscall(ffff8000212afea0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff8000212afea0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff9cd0, count: 6
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: lock (rwlock) solock not locked
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198
witness_assert(fffffd807829dba8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 soassertlocked sys/kern/uipc_socket2.c:414 [inline]
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 sys/kern/uipc_socket2.c:479
sosplice(fffffd807829d7c0,5,0,0) at sosplice+0x550
sosetopt(fffffd807829d7c0,ffff,1023,fffffd806d346700) at sosetopt+0x7f4
sys_setsockopt(ffff8000212327e8,ffff8000212afdd8,ffff8000212afe20) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233
syscall(ffff8000212afea0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff8000212afea0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff9cd0, count: -9
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff8000212afb20
rbx 0xffffffff8296cb8f cpu_info_full_primary+0x2b8f
rdx 0x3fd
rcx 0
rax 0x27
r8 0x101010101010101
r9 0x8080808080808080
r10 0x8c0a6f5f3e904356
r11 0x7d228f1093222a1c
r12 0xffffffff8296c990 cpu_info_full_primary+0x2990
r13 0
r14 0
r15 0x1
rip 0xffffffff81f03e68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000212afb10
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor1980428307) pid=399500 stat=onproc
flags process=2<EXEC> proc=0
pri=51, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff8000212337a8,0xffff800021232fd8
process=0xffff800021299900 user=0xffff8000212aa000, vmspace=0xfffffd806ef5a008
estcpu=1, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
28773 498374 0 0 2 0x14200 sosplice
*52088 399500 89382 0 7 0x2 syz-executor1980428307
89382 189216 13139 0 3 0x10008a sigsusp ksh
13139 240013 87783 0 7 0x12 sshd
71319 424162 1 0 3 0x100083 ttyin getty
87783 146238 1 0 3 0x88 kqread sshd
53745 491677 46750 74 3 0x1100092 bpf pflogd
46750 198214 1 0 3 0x80 netio pflogd
3338 346119 30912 73 3 0x1100090 kqread syslogd
30912 488350 1 0 3 0x100082 netio syslogd
14916 484382 1 0 3 0x100080 kqread resolvd
76753 447174 32550 77 3 0x100092 kqread dhcpleased
28829 302290 32550 77 3 0x100092 kqread dhcpleased
32550 280064 1 0 3 0x80 kqread dhcpleased
92741 410543 0 0 3 0x14200 bored smr
4219 107099 0 0 2 0x14200 zerothread
90400 467760 0 0 3 0x14200 aiodoned aiodoned
74069 277771 0 0 3 0x14200 syncer update
21791 62262 0 0 3 0x14200 cleaner cleaner
14754 154199 0 0 3 0x14200 reaper reaper
77836 272037 0 0 3 0x14200 pgdaemon pagedaemon
39958 386883 0 0 3 0x14200 bored viomb
35362 369270 0 0 3 0x40014200 acpi0 acpi0
69266 445186 0 0 3 0x40014200 idle1
28544 133890 0 0 3 0x14200 bored softnet
94239 218892 0 0 3 0x14200 bored softnet
99597 435515 0 0 3 0x14200 bored softnet
13941 351918 0 0 3 0x14200 bored softnet
62628 32410 0 0 3 0x14200 bored systqmp
68002 478619 0 0 3 0x14200 bored systq
13349 362493 0 0 3 0x40014200 bored softclock
71960 80268 0 0 3 0x40014200 idle0
1 170866 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 52088 (syz-executor1980428307) thread 0xffff8000212327e8 (399500)
exclusive rwlock netlock r = 0 (0xffffffff82991290)
#0 witness_lock+0x44d
#1 sys_setsockopt+0x1de sys/kern/uipc_syscalls.c:1233
#2 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
#2 syscall+0x435 sys/arch/amd64/amd64/trap.c:585
#3 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829ee950)
#0 witness_lock+0x44d
#1 syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline]
#1 syscall+0x41d sys/arch/amd64/amd64/trap.c:585
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10162 6456K 6457K 78643K 11252 0
pcb 13 8K 8K 78643K 13 0
rtable 58 1K 2K 78643K 107 0
ifaddr 30 8K 8K 78643K 33 0
counters 40 33K 33K 78643K 40 0
ioctlops 0 0K 4K 78643K 1479 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1167 73K 73K 78643K 1180 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 1 0K 0K 78643K 1 0
proc 67 91K 91K 78643K 282 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 0K 78643K 11 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 25 122K 122K 78643K 25 0
exec 0 0K 2K 78643K 431 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 56 3K 5K 78643K 1532 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 4 0K 0K 78643K 4 0
temp 23 4709K 4773K 78643K 2498 0
kqueue 11 16K 18K 78643K 24 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 17 0 14 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 144 36 0 20 1 0 1 1 0 8 0
syncache 296 5 0 5 2 1 1 1 0 8 1
tcpcb 768 9 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 368 34 0 26 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
pfstitem 24 8 0 0 1 0 1 1 0 8 0
pfstkey 120 8 0 0 1 0 1 1 0 8 0
pfstate 336 8 0 0 1 0 1 1 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 97 0 0 7 0 7 7 0 8 0
art_table 32 98 0 0 1 0 1 1 0 8 0
art_node 16 22 0 2 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1424 0 39 87 0 87 87 0 8 0
ffsino 272 1424 0 39 93 0 93 93 0 8 0
nchpl 144 1611 0 48 58 0 58 58 0 8 0
uvmvnodes 80 1434 0 0 30 0 30 30 0 8 0
vnodes 216 1434 0 0 80 0 80 80 0 8 0
namei 1024 4383 0 4383 2 1 1 1 0 8 1
percpumem 16 32 0 0 1 0 1 1 0 8 0
kstatmem 264 8 0 0 1 0 1 1 0 8 0
scxspl 216 4090 0 4090 10 2 8 8 0 8 8
plimitpl 152 16 0 9 1 0 1 1 0 8 0
sigapl 424 323 0 290 5 1 4 5 0 8 0
knotepl 120 44 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 320 86 0 83 2 1 1 1 0 8 0
fdescpl 496 305 0 290 3 0 3 3 0 8 0
filepl 152 1185 0 1124 3 0 3 3 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 104 69 0 57 1 0 1 1 0 8 0
zombiepl 144 290 0 290 2 1 1 1 0 8 1
processpl 1064 323 0 290 3 0 3 3 0 8 0
procpl 672 323 0 290 4 1 3 4 0 8 0
sosppl 168 2 0 0 1 0 1 1 0 8 0
sockpl 488 87 0 60 5 1 4 4 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 74 0 0 9 0 9 9 0 8 0
mtagpl 96 2 0 0 1 0 1 1 0 8 0
mbufpl 256 124 0 0 8 0 8 8 0 8 0
bufpl 288 1989 0 85 136 0 136 136 0 8 0
anonpl 24 37825 0 35841 18 4 14 15 0 186 2
amapchunkpl 152 2773 0 2677 6 2 4 6 0 158 0
amappl16 200 31 0 30 2 1 1 1 0 8 0
amappl15 192 67 0 63 1 0 1 1 0 8 0
amappl13 176 36 0 33 1 0 1 1 0 8 0
amappl12 168 3 0 3 2 1 1 1 0 8 1
amappl11 160 66 0 49 1 0 1 1 0 8 0
amappl10 152 2 0 1 1 0 1 1 0 8 0
amappl9 144 473 0 471 1 0 1 1 0 8 0
amappl8 136 364 0 364 2 1 1 1 0 8 1
amappl7 128 66 0 59 1 0 1 1 0 8 0
amappl6 120 90 0 84 1 0 1 1 0 8 0
amappl5 112 92 0 79 1 0 1 1 0 8 0
amappl4 104 632 0 609 1 0 1 1 0 8 0
amappl3 96 442 0 417 1 0 1 1 0 8 0
amappl2 88 312 0 283 1 0 1 1 0 8 0
amappl1 80 9491 0 9071 12 2 10 10 0 8 0
amappl 88 1252 0 1213 2 1 1 2 0 92 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 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 305 0 290 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 305 0 290 1 0 1 1 0 8 0
vmmpekpl 168 6262 0 6247 1 0 1 1 0 8 0
vmmpepl 168 26885 0 26019 48 6 42 42 0 357 3
vmsppl 368 304 0 290 2 0 2 2 0 8 0
rwobjpl 56 9636 0 7625 30 0 30 30 0 8 0
pdppl 4096 617 0 580 61 24 37 45 0 8 0
pvpl 32 126206 0 122249 39 4 35 35 0 265 0
pmappl 248 304 0 290 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 418 0 28 12 0 12 12 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198
witness_assert(fffffd807829dba8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 soassertlocked sys/kern/uipc_socket2.c:414 [inline]
sbunlock(fffffd807829db90,fffffd807829dcd8) at sbunlock+0xc9 sys/kern/uipc_socket2.c:479
sosplice(fffffd807829d7c0,5,0,0) at sosplice+0x550
sosetopt(fffffd807829d7c0,ffff,1023,fffffd806d346700) at sosetopt+0x7f4
sys_setsockopt(ffff8000212327e8,ffff8000212afdd8,ffff8000212afe20) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233
syscall(ffff8000212afea0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff8000212afea0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff9cd0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff829ee748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829ee748) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff8000212c4a10) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline]
syscall(ffff8000212c4a10) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe9230, count: 9
ddb{1}> trace
x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff829ee748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829ee748) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff8000212c4a10) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline]
syscall(ffff8000212c4a10) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe9230, count: -6
ddb{1}>