panic: spl assertion failure in yield
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*248729 18514 0 0x2 0x4000000 0 syz-executor7465
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff82248b59) at panic+0x15c sys/kern/subr_prf.c:207
splassert_fail(0,1,ffffffff8222174a) at splassert_fail+0x102 sys/kern/subr_prf.c:237
yield() at yield+0x6f sys/kern/sched_bsd.c:304
pool_get(ffffffff82584428,d) at pool_get+0x166 sys/kern/subr_pool.c:588
pfioctl(4900,cd604404,ffff8000006bf000,3,ffff80001d7a8390) at pfioctl+0x305e sys/net/pf_ioctl.c:1216
VOP_IOCTL(fffffd805dc40270,cd604404,ffff8000006bf000,3,fffffd806c3bfd20,ffff80001d7a8390) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290
vn_ioctl(fffffd805d8cd4b8,cd604404,ffff8000006bf000,ffff80001d7a8390) at vn_ioctl+0xb5 sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80001d7a8390,ffff80001d7ca668,ffff80001d7ca6b0) at sys_ioctl+0x4a1
syscall(ffff80001d7ca730) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6ab108933d0, 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
spl assertion failure in yield
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff82248b59) at panic+0x15c sys/kern/subr_prf.c:207
splassert_fail(0,1,ffffffff8222174a) at splassert_fail+0x102 sys/kern/subr_prf.c:237
yield() at yield+0x6f sys/kern/sched_bsd.c:304
pool_get(ffffffff82584428,d) at pool_get+0x166 sys/kern/subr_pool.c:588
pfioctl(4900,cd604404,ffff8000006bf000,3,ffff80001d7a8390) at pfioctl+0x305e sys/net/pf_ioctl.c:1216
VOP_IOCTL(fffffd805dc40270,cd604404,ffff8000006bf000,3,fffffd806c3bfd20,ffff80001d7a8390) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290
vn_ioctl(fffffd805d8cd4b8,cd604404,ffff8000006bf000,ffff80001d7a8390) at vn_ioctl+0xb5 sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80001d7a8390,ffff80001d7ca668,ffff80001d7ca6b0) at sys_ioctl+0x4a1
syscall(ffff80001d7ca730) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6ab108933d0, count: -11
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80001d7ca050
rbx 0xffff80001d7ca100
rdx 0x2
rcx 0
rax 0x1
r8 0xffffffff8101c2ef kprintf+0x15f
r9 0x1
r10 0x2
r11 0xd20f713237f58bcc
r12 0x3000000008
r13 0xffff80001d7ca060
r14 0x100
r15 0x1
rip 0xffffffff81294578 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d7ca040
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor7465) pid=248729 stat=onproc
flags process=2<EXEC,8ORPHAN> proc=4000000<THREAD>
pri=54, usrpri=54, nice=20
forw=0xffffffffffffffff, list=0xffff80001d7a8600,0xffffffff825ec610
process=0xffff8000ffff9210 user=0xffff80001d7c5000, vmspace=0xfffffd806bc09660
estcpu=4, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
18514 133009 7834 0 2 0x2 syz-executor7465
*18514 248729 7834 0 7 0x4000002 syz-executor7465
7834 327965 50174 0 3 0x10008a pause ksh
50174 127670 88922 0 3 0x92 select sshd
24463 388494 1 0 3 0x100083 ttyin getty
88922 200262 1 0 3 0x80 select sshd
47592 212659 49766 73 3 0x100090 kqread syslogd
49766 486763 1 0 3 0x100082 netio syslogd
36180 205403 1 77 3 0x100090 poll dhclient
23480 175064 1 0 3 0x80 poll dhclient
76411 120503 0 0 3 0x14200 bored smr
78952 132584 0 0 3 0x14200 pgzero zerothread
92208 97701 0 0 3 0x14200 aiodoned aiodoned
73149 24946 0 0 3 0x14200 syncer update
14046 209907 0 0 3 0x14200 cleaner cleaner
38172 517899 0 0 3 0x14200 reaper reaper
46570 323948 0 0 3 0x14200 pgdaemon pagedaemon
10908 169556 0 0 3 0x14200 bored crynlk
7262 4801 0 0 3 0x14200 bored crypto
26334 261102 0 0 3 0x40014200 acpi0 acpi0
55731 24277 0 0 3 0x14200 bored softnet
76728 98254 0 0 3 0x14200 bored systqmp
88990 70580 0 0 3 0x14200 bored systq
54317 352746 0 0 3 0x40014200 bored softclock
67666 367841 0 0 3 0x40014200 idle0
1 229656 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 9440 6319K 6320K 78643K 10539 0
pcb 13 8K 8K 78643K 13 0
rtable 61 1K 2K 78643K 117 0
ifaddr 24 7K 7K 78643K 24 0
counters 19 16K 16K 78643K 19 0
ioctlops 1 4K 4K 78643K 15 0
mount 1 1K 1K 78643K 1 0
vnodes 1182 74K 74K 78643K 1187 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 0K 0K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 1 0K 0K 78643K 1 0
proc 47 38K 46K 78643K 278 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 19 95K 95K 78643K 19 0
exec 0 0K 1K 78643K 151 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 56 2K 3K 78643K 690 0
UVM aobj 2 2K 2K 78643K 2 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 3 0K 0K 78643K 3 0
temp 18 3025K 3089K 78643K 1425 0
kqueue 2 2K 2K 78643K 2 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
arp 64 2 0 0 1 0 1 1 0 8 0
rtpcb 80 15 0 13 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 120 27 0 19 1 0 1 1 0 8 0
syncache 264 5 0 5 2 2 0 1 0 8 0
tcpcb 544 8 0 5 1 0 1 1 0 8 0
inpcb 280 22 0 16 1 0 1 1 0 8 0
pfrule 1360 2 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 96 0 0 6 0 6 6 0 8 0
art_table 32 97 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 1391 0 15 86 0 86 86 0 8 0
ffsino 240 1391 0 15 81 0 81 81 0 8 0
nchpl 144 1565 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1400 0 0 26 0 26 26 0 8 0
vnodes 208 1400 0 0 74 0 74 74 0 8 0
namei 1024 3488 0 3488 3 2 1 1 0 8 1
scxspl 192 2816 0 2816 3 3 0 1 0 8 0
plimitpl 152 13 0 8 1 0 1 1 0 8 0
sigapl 424 191 0 166 4 0 4 4 0 8 0
futexpl 56 8 0 8 2 1 1 1 0 8 1
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 144 1 0 0 1 0 1 1 0 8 0
pipelkpl 16 57 0 53 2 1 1 1 0 8 0
pipepl 120 114 0 107 2 1 1 1 0 8 0
fdescpl 432 177 0 166 2 0 2 2 0 8 0
filepl 120 826 0 781 2 0 2 2 0 8 0
lockfpl 104 5 0 4 1 0 1 1 0 8 0
lockfspl 48 3 0 2 1 0 1 1 0 8 0
sessionpl 112 17 0 9 1 0 1 1 0 8 0
pgrppl 48 17 0 9 1 0 1 1 0 8 0
ucredpl 96 57 0 50 1 0 1 1 0 8 0
zombiepl 144 166 0 166 2 2 0 1 0 8 0
processpl 920 191 0 166 4 0 4 4 0 8 0
procpl 624 192 0 166 3 0 3 3 0 8 0
sockpl 400 64 0 48 2 0 2 2 0 8 0
mcl4k 4096 10 0 10 2 2 0 1 0 8 0
mcl2k 2048 5944 0 5912 9 4 5 8 0 8 0
mtagpl 80 2 0 2 1 1 0 1 0 8 0
mbufpl 256 10169 0 10125 5 1 4 5 0 8 0
bufpl 280 1812 0 84 124 0 124 124 0 8 0
anonpl 16 17283 0 16137 7 2 5 7 0 107 0
amapchunkpl 152 468 0 430 2 0 2 2 0 158 0
amappl16 192 68 0 64 1 0 1 1 0 8 0
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 22 0 19 1 0 1 1 0 8 0
amappl13 168 12 0 11 2 1 1 1 0 8 0
amappl12 160 6 0 6 1 1 0 1 0 8 0
amappl11 152 38 0 29 1 0 1 1 0 8 0
amappl10 144 5 0 3 1 0 1 1 0 8 0
amappl9 136 198 0 197 1 0 1 1 0 8 0
amappl8 128 202 0 200 1 0 1 1 0 8 0
amappl7 120 81 0 72 1 0 1 1 0 8 0
amappl6 112 11 0 11 2 2 0 1 0 8 0
amappl5 104 190 0 181 1 0 1 1 0 8 0
amappl4 96 399 0 376 1 0 1 1 0 8 0
amappl3 88 97 0 91 1 0 1 1 0 8 0
amappl2 80 664 0 609 3 1 2 2 0 8 0
amappl1 72 12205 0 11810 16 7 9 16 0 8 0
amappl 80 355 0 335 1 0 1 1 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 177 0 166 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 177 0 166 1 0 1 1 0 8 0
vmmpekpl 168 5285 0 5268 1 0 1 1 0 8 0
vmmpepl 168 25723 0 24933 54 19 35 48 0 357 0
vmsppl 272 176 0 166 1 0 1 1 0 8 0
pdppl 4096 360 0 332 5 0 5 5 0 8 0
pvpl 32 70572 0 67814 31 8 23 26 0 265 0
pmappl 200 176 0 166 1 0 1 1 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 211 0 11 6 0 6 6 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff82248b59) at panic+0x15c sys/kern/subr_prf.c:207
splassert_fail(0,1,ffffffff8222174a) at splassert_fail+0x102 sys/kern/subr_prf.c:237
yield() at yield+0x6f sys/kern/sched_bsd.c:304
pool_get(ffffffff82584428,d) at pool_get+0x166 sys/kern/subr_pool.c:588
pfioctl(4900,cd604404,ffff8000006bf000,3,ffff80001d7a8390) at pfioctl+0x305e sys/net/pf_ioctl.c:1216
VOP_IOCTL(fffffd805dc40270,cd604404,ffff8000006bf000,3,fffffd806c3bfd20,ffff80001d7a8390) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290
vn_ioctl(fffffd805d8cd4b8,cd604404,ffff8000006bf000,ffff80001d7a8390) at vn_ioctl+0xb5 sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80001d7a8390,ffff80001d7ca668,ffff80001d7ca6b0) at sys_ioctl+0x4a1
syscall(ffff80001d7ca730) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6ab108933d0, count: -11
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff82248b59) at panic+0x15c sys/kern/subr_prf.c:207
splassert_fail(0,1,ffffffff8222174a) at splassert_fail+0x102 sys/kern/subr_prf.c:237
yield() at yield+0x6f sys/kern/sched_bsd.c:304
pool_get(ffffffff82584428,d) at pool_get+0x166 sys/kern/subr_pool.c:588
pfioctl(4900,cd604404,ffff8000006bf000,3,ffff80001d7a8390) at pfioctl+0x305e sys/net/pf_ioctl.c:1216
VOP_IOCTL(fffffd805dc40270,cd604404,ffff8000006bf000,3,fffffd806c3bfd20,ffff80001d7a8390) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290
vn_ioctl(fffffd805d8cd4b8,cd604404,ffff8000006bf000,ffff80001d7a8390) at vn_ioctl+0xb5 sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80001d7a8390,ffff80001d7ca668,ffff80001d7ca6b0) at sys_ioctl+0x4a1
syscall(ffff80001d7ca730) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6ab108933d0, count: -11