panic: unhandled af 131
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*420478 65638 0 0x14000 0x200 0 softnet0
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e27e2) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(83) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a1d0460,ffff800000c43d50,fffff4806fb2dbb0,5dc) at if_output_tso+0x22b
ip_output(fffff480768c8400,0,fffff4806fceb448,800,0,fffff4806fceb4e0,d4d9a30fcd443ae2) at ip_output+0x107b sys/netinet/ip_output.c:437
tcp_output(ffff8000015bc2e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_input_solocked(ffff80002a1d08b0,ffff80002a1d08bc,0,2,ffff80002a1d08a8) at tcp_input_solocked+0x5a40 sys/netinet/tcp_input.c:2041
tcp_input_mlist(ffffffff83aadc90,2) at tcp_input_mlist+0x93 sys/netinet/tcp_input.c:-1
if_input_process(ffff80000004e858,ffff80002a1d0998,0) at if_input_process+0x526 sys/net/if.c:1086
ifiq_process(ffff80000004ed08) at ifiq_process+0xcd sys/net/ifq.c:864
taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, 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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: unhandled af 131
ddb{0}> show kasan
No such command
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e27e2) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(83) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a1d0460,ffff800000c43d50,fffff4806fb2dbb0,5dc) at if_output_tso+0x22b
ip_output(fffff480768c8400,0,fffff4806fceb448,800,0,fffff4806fceb4e0,d4d9a30fcd443ae2) at ip_output+0x107b sys/netinet/ip_output.c:437
tcp_output(ffff8000015bc2e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_input_solocked(ffff80002a1d08b0,ffff80002a1d08bc,0,2,ffff80002a1d08a8) at tcp_input_solocked+0x5a40 sys/netinet/tcp_input.c:2041
tcp_input_mlist(ffffffff83aadc90,2) at tcp_input_mlist+0x93 sys/netinet/tcp_input.c:-1
if_input_process(ffff80000004e858,ffff80002a1d0998,0) at if_input_process+0x526 sys/net/if.c:1086
ifiq_process(ffff80000004ed08) at ifiq_process+0xcd sys/net/ifq.c:864
taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, count: -11
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a1d0240
rbx 0xffffffff839c8e07 cpu_info_full_primary+0x2e07
rdx 0
rcx 0xffff800045ffe000
rax 0xffffffff839c7ff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xa24a3fd487df5523
r11 0x48939a95ff1a1d7e
r12 0xffffffff839c8c08 cpu_info_full_primary+0x2c08
r13 0
r14 0
r15 0x1
rip 0xffffffff81ae1e95 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a1d0230
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (softnet0) tid=420478 pid=65638 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800045ffe298,0xffff800045ffe540
process=0xffff800045ff84d0 user=0xffff80002a1cb000, vmspace=0xffffffff839f7a00
estcpu=0, cpticks=9, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
87122 78030 51191 32767 3 0x10 0x80 nanoslp syz-executor
87122 459765 51191 32767 3 0x10 0x4000080 kqread syz-executor
87122 387701 51191 32767 3 0x10 0x4000080 fsleep syz-executor
51191 171137 60175 32767 3 0x10 0x80 nanoslp syz-executor
60175 300049 90694 0 3 0x2 0x80 wait syz-executor
64002 365675 44554 32767 3 0x10 0x80 piperd syz-executor
14011 213728 2095 32767 3 0x10 0x80 piperd syz-executor
1161 488472 91349 32767 3 0x10 0x80 piperd syz-executor
53073 19104 48208 32767 3 0x10 0x80 piperd syz-executor
64651 299999 80409 32767 3 0x10 0x80 piperd syz-executor
46407 468830 36747 32767 3 0x10 0x80 piperd syz-executor
91349 451812 90694 0 3 0x2 0x80 wait syz-executor
48208 87991 90694 0 3 0x2 0x80 wait syz-executor
80409 199472 90694 0 3 0x2 0x80 wait syz-executor
44554 127836 90694 0 3 0x2 0x80 wait syz-executor
36747 62643 90694 0 3 0x2 0x80 wait syz-executor
2095 332863 90694 0 3 0x2 0x80 wait syz-executor
90694 60849 36773 0 3 0x2 0x80 nanoslp syz-executor
36773 443945 86062 0 3 0x100002 0x88 sigsusp ksh
86062 280402 26750 0 3 0x10 0x88 kqread sshd-session
26750 252170 30815 0 3 0x12 0x80 kqread sshd-session
11536 84431 1 0 3 0x100003 0x80 ttyin getty
30815 478849 1 0 3 0 0x88 kqread sshd
31895 424397 50767 73 3 0x1100010 0x80 kqread syslogd
50767 232922 1 0 3 0x100002 0x80 sbwait syslogd
22420 12670 1 0 3 0x100000 0x80 kqread resolvd
73805 172421 55212 77 3 0x100012 0x80 kqread dhcpleased
71835 477541 55212 77 3 0x100012 0x80 kqread dhcpleased
55212 190794 1 0 3 0 0x80 kqread dhcpleased
82710 116694 0 0 3 0x14000 0x200 bored smr
16610 325804 0 0 3 0x14000 0x200 pgzero zerothread
97171 240975 0 0 3 0x14000 0x200 aiodoned aiodoned
61570 416987 0 0 3 0x14000 0x200 syncer update
11123 383781 0 0 3 0x14000 0x200 cleaner cleaner
78574 385723 0 0 3 0x14000 0x200 reaper reaper
19594 346058 0 0 3 0x14000 0x200 pgdaemon pagedaemon
40381 206801 0 0 3 0x14000 0x200 bored viomb
27109 481167 0 0 3 0x14000 0x40000200 acpi0 acpi0
13782 37031 0 0 7 0x14000 0x40000200 idle1
55166 468479 0 0 3 0x14000 0x200 bored softnet1
*65638 420478 0 0 7 0x14000 0x200 softnet0
14870 368776 0 0 3 0x14000 0x200 bored systqmp
12799 420071 0 0 3 0x14000 0x200 bored systq
98795 373669 0 0 3 0x14000 0x200 tmoslp softclockmp
46283 270212 0 0 3 0x14000 0x40000200 tmoslp softclock
36908 73338 0 0 3 0x14000 0x40000200 idle0
1 90595 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb{0}> show all locks
Process 65638 (softnet0) thread 0xffff800045ffe000 (420478)
exclusive rwlock inet46 r = 0 (0xffff8000015ba030)
#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 in_pcbsolock+0xdb sys/netinet/in_pcb.c:631
#3 tcp_input_solocked+0xa9a sys/netinet/tcp_input.c:-1
#4 tcp_input_mlist+0x93 sys/netinet/tcp_input.c:-1
#5 if_input_process+0x526 sys/net/if.c:1086
#6 ifiq_process+0xcd sys/net/ifq.c:864
#7 taskq_thread+0x157 sys/kern/kern_task.c:446
#8 proc_trampoline+0x10
shared rwlock netlock r = 0 (0xffffffff8393b470)
#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_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 if_input_process+0x1c9 sys/net/if.c:1061
#3 ifiq_process+0xcd sys/net/ifq.c:864
#4 taskq_thread+0x157 sys/kern/kern_task.c:446
#5 proc_trampoline+0x10
shared rwlock softnet0 r = 0 (0xffff80000002c078)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11050 12016K 12034K 166960K 12147 0
pcb 17 12K 12K 166960K 17 0
rtable 219 6K 7K 166960K 407 0
pf 29 16K 16K 166960K 33 0
ifaddr 38 6K 7K 166960K 48 0
ifgroup 46 2K 2K 166960K 54 0
sysctl 3 1K 9K 166960K 8 0
counters 68 36K 37K 166960K 72 0
ioctlops 0 0K 4K 166960K 43 0
iov 0 0K 4K 166960K 17 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1288 81K 81K 166960K 1588 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 11 0
VM map 2 1K 1K 166960K 2 0
sem 12 1K 1K 166960K 91 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 17 61K 125K 166960K 547 0
sigio 0 0K 0K 166960K 3 0
proc 58 99K 147K 166960K 595 0
subproc 63 3K 4K 166960K 252 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 103 0
in_multi 88 6K 7K 166960K 130 0
ether_multi 1 0K 0K 166960K 5 0
mrt 1 0K 0K 166960K 20 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 433 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 190 150K 187K 166960K 6055 0
UVM aobj 16 2K 2K 166960K 17 0
pinsyscall 38 76K 114K 166960K 1673 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 18 0
NDP 10 0K 2K 166960K 30 0
temp 42 9120K 9136K 166960K 4892 0
kqueue 14 22K 28K 166960K 98 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 28 0 0 1 0 1 1 0 8 0
rtpcb 120 65 0 62 1 0 1 1 0 8 0
rtentry 176 128 0 27 6 0 6 6 0 8 0
unpcb 144 374 0 359 7 6 1 7 0 8 0
syncache 336 5 0 5 2 2 0 1 0 8 0
tcpcb 736 120 0 116 1 0 1 1 0 8 0
arp 136 21 0 4 1 0 1 1 0 8 0
ipq 40 4 0 4 2 2 0 1 0 8 0
ipqe 40 8 0 8 2 2 0 1 0 8 0
inpcb 328 464 0 456 7 5 2 5 0 8 1
ip6q 72 1 0 0 1 0 1 1 0 8 0
ip6af 40 1 0 0 1 0 1 1 0 8 0
nd6 152 32 0 10 1 0 1 1 0 8 0
kcovpl 48 28 0 21 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 547 0 135 30 1 29 30 0 8 0
art_table 40 548 0 135 5 0 5 5 0 8 0
art_node 32 128 0 36 1 0 1 1 0 8 0
sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 72 87 0 77 1 0 1 1 0 8 0
shmpl 112 14 0 1 1 0 1 1 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2080 0 594 94 0 94 94 0 8 0
ffsino 296 2080 0 594 115 0 115 115 0 8 0
nchpl 144 2735 0 1031 64 0 64 64 0 8 0
vnodes 216 2341 0 0 131 0 131 131 0 8 0
namei 1024 8597 0 8597 2 1 1 2 0 8 1
percpumem 16 52 0 2 1 0 1 1 0 8 0
kstatmem 264 27 0 4 2 0 2 2 0 8 0
scxspl 216 9340 0 9340 11 10 1 8 1 8 1
plimitpl 152 126 0 104 2 1 1 2 0 8 0
sigapl 424 804 0 759 7 0 7 7 0 8 0
knotepl 120 333 0 0 10 0 10 10 0 8 0
kqueuepl 224 120 0 110 1 0 1 1 0 8 0
pipepl 344 216 0 189 3 0 3 3 0 8 0
fdescpl 528 788 0 759 4 0 4 4 0 8 0
filepl 160 3827 0 3637 20 10 10 18 0 8 0
lockfpl 104 95 0 93 1 0 1 1 0 8 0
lockfspl 48 37 0 35 1 0 1 1 0 8 0
sessionpl 144 62 0 47 1 0 1 1 0 8 0
pgrppl 48 90 0 68 1 0 1 1 0 8 0
ucredpl 104 617 0 599 1 0 1 1 0 8 0
zombiepl 144 759 0 759 1 0 1 1 0 8 1
processpl 1232 804 0 759 5 0 5 5 0 8 0
procpl 664 1309 0 1262 7 1 6 7 0 8 0
sockpl 752 907 0 881 26 22 4 23 0 8 0
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k128 9344 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 126 0 0 16 0 16 16 0 8 0
mcl2k 2048 21 0 0 3 0 3 3 0 8 0
mextrefs 64 21 0 0 1 0 1 1 0 8 0
mtagpl 96 1 0 0 1 0 1 1 0 8 0
mbufpl 256 322 0 0 20 0 20 20 0 8 0
bufpl 272 2896 0 102 187 0 187 187 0 8 0
anonpl 32 7623 0 0 62 0 62 62 0 247 0
amapchunkpl 152 18572 0 18207 30 8 22 30 0 158 0
amappl16 200 2893 0 2877 29 15 14 15 0 8 11
amappl15 192 26 0 26 1 1 0 1 0 8 0
amappl14 184 423 0 422 1 0 1 1 0 8 0
amappl13 176 119 0 109 1 0 1 1 0 8 0
amappl12 168 1025 0 997 2 0 2 2 0 8 0
amappl11 160 4 0 4 1 1 0 1 0 8 0
amappl10 152 58 0 48 1 0 1 1 0 8 0
amappl9 144 270 0 270 1 1 0 1 0 8 0
amappl8 136 96 0 94 1 0 1 1 0 8 0
amappl7 128 144 0 133 1 0 1 1 0 8 0
amappl6 120 158 0 156 1 0 1 1 0 8 0
amappl5 112 100 0 91 1 0 1 1 0 8 0
amappl4 104 267 0 250 1 0 1 1 0 8 0
amappl3 96 3667 0 3579 5 1 4 4 0 8 0
amappl2 88 543 0 488 2 0 2 2 0 8 0
amappl1 80 12302 0 11751 17 3 14 16 0 8 0
amappl 88 5278 0 5150 5 0 5 5 0 92 0
uvmvnodes 80 104 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 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 16 0 1 1 0 1 1 0 8 0
uaddrrnd 24 788 0 759 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 788 0 759 1 0 1 1 0 8 0
vmmpekpl 168 8372 0 8330 3 0 3 3 0 8 0
vmmpepl 168 58908 0 57244 109 14 95 105 0 357 1
vmsppl 488 787 0 759 7 1 6 6 0 8 0
rwobjpl 80 19431 0 18537 29 4 25 25 0 8 0
pdppl 4096 1583 0 1518 135 54 81 97 0 8 16
pvpl 32 14892 0 0 120 0 120 120 0 265 0
pmappl 256 787 0 759 4 1 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 504 0 61 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e27e2) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(83) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a1d0460,ffff800000c43d50,fffff4806fb2dbb0,5dc) at if_output_tso+0x22b
ip_output(fffff480768c8400,0,fffff4806fceb448,800,0,fffff4806fceb4e0,d4d9a30fcd443ae2) at ip_output+0x107b sys/netinet/ip_output.c:437
tcp_output(ffff8000015bc2e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_input_solocked(ffff80002a1d08b0,ffff80002a1d08bc,0,2,ffff80002a1d08a8) at tcp_input_solocked+0x5a40 sys/netinet/tcp_input.c:2041
tcp_input_mlist(ffffffff83aadc90,2) at tcp_input_mlist+0x93 sys/netinet/tcp_input.c:-1
if_input_process(ffff80000004e858,ffff80002a1d0998,0) at if_input_process+0x526 sys/net/if.c:1086
ifiq_process(ffff80000004ed08) at ifiq_process+0xcd sys/net/ifq.c:864
taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, count: -11
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff80002999dff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff80002999dff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192
end trace frame: 0x0, count: -5