uvm_fault(0xfffffd806badcbc0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at pool_do_get+0x2c7: movq 0(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*355747 94364 0 0 0x4000000 0 syz-executor.3
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline]
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765
pool_get(ffffffff82a00088,9) at pool_get+0xb3 sys/kern/subr_pool.c:582
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:147 [inline]
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 sys/kern/uipc_socket.c:178
sys_socketpair(ffff8000216f0000,ffff800029a43ad8,ffff800029a43b30) at sys_socketpair+0x6e sys/kern/uipc_syscalls.c:471
syscall(ffff800029a43ba0) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xadb7230ffd0, count: 9
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(0xfffffd806badcbc0, 0x0, 0, 1) -> e
ddb> trace
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline]
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765
pool_get(ffffffff82a00088,9) at pool_get+0xb3 sys/kern/subr_pool.c:582
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:147 [inline]
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 sys/kern/uipc_socket.c:178
sys_socketpair(ffff8000216f0000,ffff800029a43ad8,ffff800029a43b30) at sys_socketpair+0x6e sys/kern/uipc_syscalls.c:471
syscall(ffff800029a43ba0) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xadb7230ffd0, count: -6
ddb> show registers
rdi 0x8
rsi 0xffffffff82a000d0 socket_pool+0x48
rbp 0xffff800029a43910
rbx 0x8
rdx 0
rcx 0xffffffff82a000c8 socket_pool+0x40
rax 0
r8 0xffffffff8101eb00 uvm_map_inentry_pc
r9 0x1d
r10 0
r11 0xaa395a6e59ce4479
r12 0x8
r13 0xfffffd806f023398
r14 0xffffffff82a00088 socket_pool
r15 0xfffffd806f023f90
rip 0xffffffff8252bc17 pool_do_get+0x2c7
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800029a43890
ss 0x10
pool_do_get+0x2c7: movq 0(%rax),%rax
ddb> show proc
PROC (syz-executor.3) pid=355747 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000216f17a0,0xffff80002179ed40
process=0xffff80002178efd0 user=0xffff800029a3e000, vmspace=0xfffffd806badcbc0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
45993 292856 52238 0 3 0x80 nanoslp syz-executor.2
45993 269849 52238 0 3 0x4000080 fsleep syz-executor.2
94364 155406 93828 0 2 0 syz-executor.3
*94364 355747 93828 0 7 0x4000000 syz-executor.3
21709 195736 85985 0 3 0x82 nanoslp syz-executor.1
73448 191942 1 0 3 0x100083 ttyin getty
942 363806 85985 0 3 0x82 nanoslp syz-executor.5
18647 178749 85985 0 2 0x2 syz-executor.4
51757 234160 85985 0 2 0x2 syz-executor.6
93828 182532 85985 0 3 0x82 nanoslp syz-executor.3
80357 157638 85985 0 2 0x2 syz-executor.0
9761 405386 85985 0 3 0x82 nanoslp syz-executor.7
52238 7640 85985 0 3 0x82 nanoslp syz-executor.2
90616 130906 0 0 3 0x14200 bored sosplice
85985 489265 24462 0 3 0x82 thrsleep syz-fuzzer
85985 378510 24462 0 3 0x4000082 nanoslp syz-fuzzer
85985 484239 24462 0 3 0x4000082 wait syz-fuzzer
85985 463155 24462 0 3 0x4000082 wait syz-fuzzer
85985 481785 24462 0 3 0x4000082 thrsleep syz-fuzzer
85985 116789 24462 0 3 0x4000082 wait syz-fuzzer
85985 221731 24462 0 3 0x4000082 kqread syz-fuzzer
85985 25137 24462 0 3 0x4000082 thrsleep syz-fuzzer
85985 27856 24462 0 3 0x4000082 thrsleep syz-fuzzer
85985 326072 24462 0 3 0x4000082 wait syz-fuzzer
85985 395807 24462 0 3 0x4000082 wait syz-fuzzer
85985 257009 24462 0 3 0x4000082 wait syz-fuzzer
85985 502501 24462 0 3 0x4000082 wait syz-fuzzer
85985 140217 24462 0 3 0x4000082 wait syz-fuzzer
24462 269752 98800 0 3 0x10008a sigsusp ksh
98800 195949 5584 0 3 0x9a kqread sshd
5584 303194 1 0 3 0x88 kqread sshd
5520 244128 20068 73 3 0x1100090 kqread syslogd
20068 430675 1 0 3 0x100082 netio syslogd
97173 436235 1 0 3 0x100080 kqread resolvd
5370 418756 64774 77 3 0x100092 kqread dhcpleased
6636 342245 64774 77 3 0x100092 kqread dhcpleased
64774 336033 1 0 3 0x80 kqread dhcpleased
20497 292879 0 0 3 0x14200 bored smr
98805 58319 0 0 2 0x14200 zerothread
40421 267153 0 0 3 0x14200 aiodoned aiodoned
19129 117000 0 0 3 0x14200 syncer update
40932 247336 0 0 3 0x14200 cleaner cleaner
80841 332466 0 0 3 0x14200 reaper reaper
57897 513984 0 0 3 0x14200 pgdaemon pagedaemon
51186 283046 0 0 3 0x14200 bored viomb
4347 478877 0 0 3 0x40014200 acpi0 acpi0
89649 319027 0 0 3 0x14200 bored softnet
71982 79760 0 0 3 0x14200 bored softnet
18510 230574 0 0 3 0x14200 bored softnet
12066 193094 0 0 3 0x14200 bored softnet
10359 41162 0 0 3 0x14200 bored systqmp
54270 148364 0 0 3 0x14200 bored systq
83463 305184 0 0 3 0x40014200 bored softclock
34994 473907 0 0 3 0x40014200 idle0
1 126411 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10205 6408K 7387K 78643K 22052 0
pcb 17 14K 19K 78643K 4209 0
rtable 250 18K 20K 78643K 1679 0
ifaddr 122 28K 28K 78643K 788 0
sysctl 2 0K 0K 78643K 2 0
counters 27 17K 17K 78643K 107 0
ioctlops 0 0K 4K 78643K 8900 0
iov 0 0K 16K 78643K 467 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1400 87K 88K 78643K 5319 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 17K 78643K 46 0
VM map 2 0K 0K 78643K 2 0
sem 10 0K 0K 78643K 10 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 12 41K 73K 78643K 13629 0
sigio 0 0K 0K 78643K 148 0
proc 60 59K 83K 78643K 1309 0
subproc 104 6K 6K 78643K 468 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 327 0
in_multi 86 5K 6K 78643K 533 0
ether_multi 1 0K 0K 78643K 19 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 205 917K 917K 78643K 205 0
exec 0 0K 2K 78643K 2386 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 304 86K 100K 78643K 69863 0
UVM aobj 22 2K 2K 78643K 22 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 83 0
NDP 12 0K 2K 78643K 176 0
temp 128 4726K 5750K 78643K 52072 0
kqueue 12 18K 34K 78643K 1959 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 253 0 250 3 2 1 2 0 8 0
rtentry 112 454 0 360 4 1 3 4 0 8 0
unpcb 144 7290 0 7275 50 49 1 10 0 8 0
syncache 296 206 0 206 14 14 0 1 0 8 0
tcpqe 32 46 0 46 8 8 0 1 0 8 0
tcpcb 768 8010 0 7997 181 173 8 22 0 8 6
arp 88 78 0 59 1 0 1 1 0 8 0
ipq 40 3 0 3 2 2 0 1 0 8 0
ipqe 40 43 0 43 2 2 0 1 0 8 0
inpcb 336 13122 0 13106 149 142 7 18 0 8 5
nd6 48 122 0 99 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
kcovpl 48 36 0 28 1 0 1 1 0 8 0
ppxss 1160 52 0 52 5 5 0 1 0 8 0
pfstscr 40 59 0 57 2 1 1 1 0 8 0
pfrktable 1344 168 0 148 4 2 2 2 0 8 0
pfanchor 1280 12 0 0 1 0 1 1 0 8 0
pftag 88 9 0 4 1 0 1 1 0 8 0
pfqueue 264 1 0 1 1 1 0 1 0 8 0
pfstitem 24 8 0 4 1 0 1 1 0 8 0
pfstkey 120 106 0 102 2 1 1 1 0 8 0
pfstate 336 55 0 53 2 1 1 1 0 8 0
pfrule 1360 1637 0 1267 31 0 31 31 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1848 0 1440 47 21 26 29 0 8 0
art_table 32 1849 0 1440 4 0 4 4 0 8 0
art_node 16 453 0 369 1 0 1 1 0 8 0
sysvmsgpl 40 40 0 40 1 1 0 1 0 8 0
semupl 112 7 0 7 2 2 0 1 0 8 0
semapl 112 8 0 0 1 0 1 1 0 8 0
shmpl 112 19 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 16412 0 14973 91 0 91 91 0 8 0
ffsino 240 16412 0 14973 86 0 86 86 0 8 0
nchpl 144 36000 0 34370 63 1 62 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 105288 0 105285 15 14 1 2 0 8 0
vcpupl 2048 19 0 5 3 0 3 3 0 8 0
vmpool 536 35 0 21 2 0 2 2 0 8 0
pfiaddrpl 120 77 0 23 2 0 2 2 0 8 0
kstatmem 264 184 0 160 2 0 2 2 0 8 0
scxspl 216 109653 0 109653 11 10 1 8 0 8 1
plimitpl 152 349 0 334 1 0 1 1 0 8 0
sigapl 424 13858 0 13815 7 1 6 6 0 8 0
futexpl 64 104330 0 104329 11 10 1 1 0 8 0
knotepl 120 189354 0 189274 33 30 3 10 0 8 0
kqueuepl 184 2591 0 2583 8 7 1 4 0 8 0
pipepl 288 3492 0 3464 46 43 3 10 0 8 0
fdescpl 432 13841 0 13818 5 1 4 4 0 8 0
filepl 120 79234 0 78989 86 76 10 17 0 8 0
lockfpl 104 1608 0 1606 4 3 1 2 0 8 0
lockfspl 48 469 0 467 1 0 1 1 0 8 0
sessionpl 144 54 0 38 1 0 1 1 0 8 0
pgrppl 48 1024 0 1008 1 0 1 1 0 8 0
ucredpl 104 5467 0 5457 1 0 1 1 0 8 0
zombiepl 144 13818 0 13815 2 1 1 1 0 8 0
processpl 1000 13858 0 13815 8 2 6 7 0 8 0
procpl 672 30917 0 30859 25 19 6 7 0 8 0
sosppl 168 111 0 111 3 3 0 1 0 8 0
sockpl 456 20681 0 20650 500 489 11 32 0 8 7
sockpl: pool(0xffffffff82a00088:sockpl): page inconsistency: page 0x0; at page head addr 0xfffffd8064c32f90 (p 0xfffffd8064c32000)
mcl64k 65536 253 0 253 26 25 1 1 0 8 1
mcl16k 16384 79 0 79 19 19 0 1 0 8 0
mcl12k 12288 273 0 273 23 22 1 1 0 8 1
mcl9k 9216 88 0 88 19 18 1 1 0 8 1
mcl8k 8192 379 0 379 25 25 0 1 0 8 0
mcl4k 4096 846 0 846 18 17 1 1 0 8 1
mcl2k2 2112 65 0 65 19 19 0 1 0 8 0
mcl2k 2048 46618 0 46508 85 69 16 20 0 8 0
mtagpl 96 571 0 381 12 6 6 6 0 8 0
mbufpl 256 178806 0 178404 172 142 30 72 0 8 0
bufpl 288 20400 0 13994 458 0 458 458 0 8 0
anonpl 24 2328325 0 2318070 178 109 69 100 0 188 0
amapchunkpl 152 202822 0 202338 87 65 22 41 0 158 1
amappl16 200 31311 0 30996 61 43 18 31 0 8 1
amappl15 192 2111 0 2100 1 0 1 1 0 8 0
amappl14 184 1679 0 1670 1 0 1 1 0 8 0
amappl13 176 628 0 626 1 0 1 1 0 8 0
amappl12 168 2941 0 2936 1 0 1 1 0 8 0
amappl11 160 1971 0 1958 1 0 1 1 0 8 0
amappl10 152 1478 0 1474 1 0 1 1 0 8 0
amappl9 144 997 0 986 1 0 1 1 0 8 0
amappl8 136 4248 0 4129 5 0 5 5 0 8 0
amappl7 128 3197 0 3173 1 0 1 1 0 8 0
amappl6 120 512 0 495 2 1 1 2 0 8 0
amappl5 112 11639 0 11628 1 0 1 1 0 8 0
amappl4 104 4684 0 4648 2 1 1 2 0 8 0
amappl3 96 40770 0 40728 2 0 2 2 0 8 0
amappl2 88 15817 0 15756 3 1 2 3 0 8 0
amappl1 80 318397 0 317758 27 11 16 21 0 8 0
amappl 88 68849 0 68703 5 0 5 5 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 21 0 0 1 0 1 1 0 8 0
uaddrrnd 24 13876 0 13839 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 13876 0 13839 1 0 1 1 0 8 0
vmmpekpl 168 91407 0 91349 3 0 3 3 0 8 0
vmmpepl 168 1285153 0 1282958 199 80 119 124 0 357 5
vmsppl 272 13875 0 13839 6 2 4 4 0 8 0
rwobjpl 24 299178 0 291825 46 0 46 46 0 8 0
pdppl 4096 27758 0 27692 608 530 78 87 0 8 12
pvpl 32 4956906 0 4941475 390 248 142 268 0 265 0
pmappl 216 13875 0 13839 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1894 0 1052 26 0 26 26 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline]
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765
pool_get(ffffffff82a00088,9) at pool_get+0xb3 sys/kern/subr_pool.c:582
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:147 [inline]
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 sys/kern/uipc_socket.c:178
sys_socketpair(ffff8000216f0000,ffff800029a43ad8,ffff800029a43b30) at sys_socketpair+0x6e sys/kern/uipc_syscalls.c:471
syscall(ffff800029a43ba0) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xadb7230ffd0, count: -6
ddb> machine ddbcpu 1
No such command
ddb> trace
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline]
pool_do_get(ffffffff82a00088,9,ffff800029a43968) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765
pool_get(ffffffff82a00088,9) at pool_get+0xb3 sys/kern/subr_pool.c:582
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:147 [inline]
socreate(1,ffff800029a43a40,5,0) at socreate+0xa8 sys/kern/uipc_socket.c:178
sys_socketpair(ffff8000216f0000,ffff800029a43ad8,ffff800029a43b30) at sys_socketpair+0x6e sys/kern/uipc_syscalls.c:471
syscall(ffff800029a43ba0) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xadb7230ffd0, count: -6