panic: syn_cache_insert: cacheoverflow: impossible (2)
3 views
Skip to first unread message
syzbot
Jun 24, 2020, 9:33:12 PM6/24/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 3209772d kernel: use gettime(9)/getuptime(9) in lieu of ti..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=16ef38c5100000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=1522052047471ac0c4be
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+152205...@syzkaller.appspotmail.com
panic: syn_cache_insert: cacheoverflow: impossible
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*212296 19018 0 0x14000 0x200 0 softnet
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: 1
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
syn_cache_insert: cacheoverflow: impossible
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80001d678290
rbx 0xffff80001d678340
rdx 0x2
rcx 0
rax 0x1
r8 0xffffffff810e305f kprintf+0x15f
r9 0x1
r10 0x2
r11 0xcb9314e20596b45b
r12 0x3000000008
r13 0xffff80001d6782a0
r14 0x100
r15 0x1
rip 0xffffffff8220f488 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d678280
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (softnet) pid=212296 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff80001d651000,0xffff80001d6514f0
process=0xffff8000ffffe398 user=0xffff80001d673000, vmspace=0xffffffff82854858
estcpu=0, cpticks=0, pctcpu=0.20
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
98422 326509 18781 0 3 0x80 fsleep syz-executor.0
98422 420986 18781 0 2 0x4000000 syz-executor.0
26708 384560 34261 0 2 0 syz-executor.1
26708 245436 34261 0 3 0x4000080 netcon2 syz-executor.1
62194 451030 0 0 3 0x14200 bored sosplice
34261 518526 48570 0 3 0x82 nanosleep syz-executor.1
18781 242934 48570 0 3 0x82 nanosleep syz-executor.0
48570 338231 34310 0 3 0x82 thrsleep syz-fuzzer
48570 360191 34310 0 3 0x4000082 nanosleep syz-fuzzer
48570 363256 34310 0 3 0x4000082 kqread syz-fuzzer
48570 386569 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 308647 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 401196 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 191167 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 351507 34310 0 3 0x4000082 thrsleep syz-fuzzer
34310 315265 19583 0 3 0x10008a pause ksh
19583 433301 49080 0 3 0x92 select sshd
38007 62452 1 0 3 0x100083 ttyin getty
49080 207916 1 0 3 0x80 select sshd
98036 231854 14537 73 3 0x100090 kqread syslogd
14537 334998 1 0 3 0x100082 netio syslogd
65346 505352 1 77 3 0x100090 poll dhclient
10847 75827 1 0 3 0x80 poll dhclient
82995 24306 0 0 3 0x14200 bored smr
86400 35139 0 0 2 0x14200 zerothread
57664 236217 0 0 3 0x14200 aiodoned aiodoned
58550 165980 0 0 3 0x14200 syncer update
16138 259711 0 0 3 0x14200 cleaner cleaner
97700 247305 0 0 3 0x14200 reaper reaper
89775 421423 0 0 3 0x14200 pgdaemon pagedaemon
10271 451046 0 0 3 0x14200 bored crynlk
63572 268657 0 0 3 0x14200 bored crypto
71143 272693 0 0 3 0x40014200 acpi0 acpi0
*19018 212296 0 0 7 0x14200 softnet
7389 20950 0 0 3 0x14200 bored systqmp
249 409913 0 0 3 0x14200 bored systq
58431 252203 0 0 3 0x40014200 bored softclock
90241 287296 0 0 3 0x40014200 idle0
1 447131 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 9506 6418K 6725K 78643K 11028 0
pcb 13 8K 8K 78643K 47 0
rtable 121 6K 7K 78643K 322 0
ifaddr 82 16K 16K 78643K 116 0
sysctl 2 0K 0K 78643K 2 0
counters 21 16K 16K 78643K 22 0
ioctlops 0 0K 4K 78643K 55 0
iov 0 0K 12K 78643K 33 0
mount 1 1K 1K 78643K 1 0
vnodes 1218 77K 77K 78643K 1352 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 59 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 6 17K 25K 78643K 258 0
proc 50 38K 54K 78643K 369 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 13 0
in_multi 59 3K 3K 78643K 89 0
ether_multi 1 0K 0K 78643K 5 0
mrt 0 0K 0K 78643K 4 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 196 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 131 39K 64K 78643K 1433 0
UVM aobj 6 2K 2K 78643K 6 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 24 0
NDP 12 0K 0K 78643K 19 0
temp 105 3866K 3930K 78643K 8773 0
kqueue 3 4K 8K 78643K 15 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 6 0 0 1 0 1 1 0 8 0
rtpcb 80 39 0 37 1 0 1 1 0 8 0
rtentry 112 50 0 6 2 0 2 2 0 8 0
unpcb 120 157 0 149 1 0 1 1 0 8 0
syncache 264 8 0 7 3 2 1 1 0 8 0
tcpqe 32 509 0 509 2 2 0 1 0 8 0
tcpcb 544 75 0 69 1 0 1 1 0 8 0
ipq 40 2 0 2 1 0 1 1 0 8 1
ipqe 40 90 0 90 1 0 1 1 0 8 1
inpcb 296 230 0 221 3 1 2 2 0 8 1
rttmr 72 1 0 1 1 1 0 1 0 8 0
nd6 48 10 0 4 1 0 1 1 0 8 0
pfrktable 1344 35 0 30 2 1 1 1 0 8 0
pftag 88 8 0 6 2 1 1 1 0 8 0
pfrule 1360 16 0 7 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 49 0 9 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 53 0 43 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1728 0 332 88 0 88 88 0 8 0
ffsino 240 1728 0 332 83 0 83 83 0 8 0
nchpl 144 2428 0 822 60 0 60 60 0 8 0
uvmvnodes 72 1870 0 0 34 0 34 34 0 8 0
vnodes 208 1870 0 0 99 0 99 99 0 8 0
namei 1024 6255 0 6255 1 0 1 1 0 8 1
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 528 4 0 2 1 0 1 1 0 8 0
pfiaddrpl 120 12 0 8 2 1 1 1 0 8 0
scxspl 192 6764 0 6764 1 0 1 1 0 8 1
plimitpl 152 37 0 30 1 0 1 1 0 8 0
sigapl 424 445 0 415 4 0 4 4 0 8 0
futexpl 56 5014 0 5013 1 0 1 1 0 8 0
knotepl 112 74 0 55 1 0 1 1 0 8 0
kqueuepl 144 39 0 36 1 0 1 1 0 8 0
pipelkpl 16 110 0 100 1 0 1 1 0 8 0
pipepl 120 220 0 201 2 0 2 2 0 8 1
fdescpl 432 430 0 415 2 0 2 2 0 8 0
filepl 120 2666 0 2566 4 0 4 4 0 8 0
lockfpl 104 41 0 40 1 0 1 1 0 8 0
lockfspl 48 17 0 16 1 0 1 1 0 8 0
sessionpl 112 17 0 7 1 0 1 1 0 8 0
pgrppl 48 19 0 9 1 0 1 1 0 8 0
ucredpl 96 208 0 201 1 0 1 1 0 8 0
zombiepl 144 415 0 415 1 0 1 1 0 8 1
processpl 920 445 0 415 4 0 4 4 0 8 0
procpl 624 715 0 676 4 0 4 4 0 8 1
sosppl 128 5 0 5 2 1 1 1 0 8 1
sockpl 400 426 0 407 3 0 3 3 0 8 1
mcl64k 65536 20 0 20 1 0 1 1 0 8 1
mcl16k 16384 2 0 2 2 1 1 1 0 8 1
mcl12k 12288 5 0 5 2 1 1 1 0 8 1
mcl9k 9216 5 0 5 2 1 1 1 0 8 1
mcl8k 8192 8 0 8 2 1 1 1 0 8 1
mcl4k 4096 31 0 31 2 1 1 1 0 8 1
mcl2k2 2112 2 0 2 2 1 1 1 0 8 1
mcl2k 2048 73195 0 73141 26 18 8 20 0 8 0
mtagpl 96 42 0 5 2 1 1 1 0 8 0
mbufpl 256 119312 0 119126 23 2 21 22 0 8 8
bufpl 280 5898 0 546 383 0 383 383 0 8 0
anonpl 16 58649 0 44122 87 5 82 82 0 107 16
amapchunkpl 152 2226 0 2096 23 4 19 19 0 158 13
amappl16 192 2032 0 1141 57 4 53 57 0 8 8
amappl15 184 2 0 0 1 0 1 1 0 8 0
amappl14 176 138 0 130 1 0 1 1 0 8 0
amappl13 168 250 0 243 1 0 1 1 0 8 0
amappl12 160 129 0 124 1 0 1 1 0 8 0
amappl11 152 46 0 37 1 0 1 1 0 8 0
amappl10 144 16 0 10 1 0 1 1 0 8 0
amappl9 136 377 0 376 1 0 1 1 0 8 0
amappl8 128 331 0 288 2 0 2 2 0 8 0
amappl7 120 106 0 94 1 0 1 1 0 8 0
amappl6 112 22 0 18 1 0 1 1 0 8 0
amappl5 104 256 0 244 1 0 1 1 0 8 0
amappl4 96 533 0 506 1 0 1 1 0 8 0
amappl3 88 220 0 213 1 0 1 1 0 8 0
amappl2 80 2712 0 2636 2 0 2 2 0 8 0
amappl1 72 16876 0 16453 22 12 10 17 0 8 0
amappl 80 942 0 900 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 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 434 0 417 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 434 0 417 1 0 1 1 0 8 0
vmmpekpl 168 6758 0 6729 2 0 2 2 0 8 0
vmmpepl 168 57515 0 55436 110 9 101 106 0 357 10
vmsppl 272 433 0 417 2 0 2 2 0 8 0
pdppl 4096 874 0 836 6 1 5 6 0 8 0
pvpl 32 179508 0 161907 196 3 193 193 0 265 38
pmappl 200 433 0 417 1 0 1 1 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 263 0 26 7 0 7 7 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(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 3209772d kernel: use gettime(9)/getuptime(9) in lieu of ti..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=16ef38c5100000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=1522052047471ac0c4be
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+152205...@syzkaller.appspotmail.com
panic: syn_cache_insert: cacheoverflow: impossible
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*212296 19018 0 0x14000 0x200 0 softnet
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: 1
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
syn_cache_insert: cacheoverflow: impossible
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80001d678290
rbx 0xffff80001d678340
rdx 0x2
rcx 0
rax 0x1
r8 0xffffffff810e305f kprintf+0x15f
r9 0x1
r10 0x2
r11 0xcb9314e20596b45b
r12 0x3000000008
r13 0xffff80001d6782a0
r14 0x100
r15 0x1
rip 0xffffffff8220f488 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d678280
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (softnet) pid=212296 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff80001d651000,0xffff80001d6514f0
process=0xffff8000ffffe398 user=0xffff80001d673000, vmspace=0xffffffff82854858
estcpu=0, cpticks=0, pctcpu=0.20
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
98422 326509 18781 0 3 0x80 fsleep syz-executor.0
98422 420986 18781 0 2 0x4000000 syz-executor.0
26708 384560 34261 0 2 0 syz-executor.1
26708 245436 34261 0 3 0x4000080 netcon2 syz-executor.1
62194 451030 0 0 3 0x14200 bored sosplice
34261 518526 48570 0 3 0x82 nanosleep syz-executor.1
18781 242934 48570 0 3 0x82 nanosleep syz-executor.0
48570 338231 34310 0 3 0x82 thrsleep syz-fuzzer
48570 360191 34310 0 3 0x4000082 nanosleep syz-fuzzer
48570 363256 34310 0 3 0x4000082 kqread syz-fuzzer
48570 386569 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 308647 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 401196 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 191167 34310 0 3 0x4000082 thrsleep syz-fuzzer
48570 351507 34310 0 3 0x4000082 thrsleep syz-fuzzer
34310 315265 19583 0 3 0x10008a pause ksh
19583 433301 49080 0 3 0x92 select sshd
38007 62452 1 0 3 0x100083 ttyin getty
49080 207916 1 0 3 0x80 select sshd
98036 231854 14537 73 3 0x100090 kqread syslogd
14537 334998 1 0 3 0x100082 netio syslogd
65346 505352 1 77 3 0x100090 poll dhclient
10847 75827 1 0 3 0x80 poll dhclient
82995 24306 0 0 3 0x14200 bored smr
86400 35139 0 0 2 0x14200 zerothread
57664 236217 0 0 3 0x14200 aiodoned aiodoned
58550 165980 0 0 3 0x14200 syncer update
16138 259711 0 0 3 0x14200 cleaner cleaner
97700 247305 0 0 3 0x14200 reaper reaper
89775 421423 0 0 3 0x14200 pgdaemon pagedaemon
10271 451046 0 0 3 0x14200 bored crynlk
63572 268657 0 0 3 0x14200 bored crypto
71143 272693 0 0 3 0x40014200 acpi0 acpi0
*19018 212296 0 0 7 0x14200 softnet
7389 20950 0 0 3 0x14200 bored systqmp
249 409913 0 0 3 0x14200 bored systq
58431 252203 0 0 3 0x40014200 bored softclock
90241 287296 0 0 3 0x40014200 idle0
1 447131 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 9506 6418K 6725K 78643K 11028 0
pcb 13 8K 8K 78643K 47 0
rtable 121 6K 7K 78643K 322 0
ifaddr 82 16K 16K 78643K 116 0
sysctl 2 0K 0K 78643K 2 0
counters 21 16K 16K 78643K 22 0
ioctlops 0 0K 4K 78643K 55 0
iov 0 0K 12K 78643K 33 0
mount 1 1K 1K 78643K 1 0
vnodes 1218 77K 77K 78643K 1352 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 59 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 6 17K 25K 78643K 258 0
proc 50 38K 54K 78643K 369 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 13 0
in_multi 59 3K 3K 78643K 89 0
ether_multi 1 0K 0K 78643K 5 0
mrt 0 0K 0K 78643K 4 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 196 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 131 39K 64K 78643K 1433 0
UVM aobj 6 2K 2K 78643K 6 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 24 0
NDP 12 0K 0K 78643K 19 0
temp 105 3866K 3930K 78643K 8773 0
kqueue 3 4K 8K 78643K 15 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 6 0 0 1 0 1 1 0 8 0
rtpcb 80 39 0 37 1 0 1 1 0 8 0
rtentry 112 50 0 6 2 0 2 2 0 8 0
unpcb 120 157 0 149 1 0 1 1 0 8 0
syncache 264 8 0 7 3 2 1 1 0 8 0
tcpqe 32 509 0 509 2 2 0 1 0 8 0
tcpcb 544 75 0 69 1 0 1 1 0 8 0
ipq 40 2 0 2 1 0 1 1 0 8 1
ipqe 40 90 0 90 1 0 1 1 0 8 1
inpcb 296 230 0 221 3 1 2 2 0 8 1
rttmr 72 1 0 1 1 1 0 1 0 8 0
nd6 48 10 0 4 1 0 1 1 0 8 0
pfrktable 1344 35 0 30 2 1 1 1 0 8 0
pftag 88 8 0 6 2 1 1 1 0 8 0
pfrule 1360 16 0 7 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 49 0 9 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 53 0 43 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1728 0 332 88 0 88 88 0 8 0
ffsino 240 1728 0 332 83 0 83 83 0 8 0
nchpl 144 2428 0 822 60 0 60 60 0 8 0
uvmvnodes 72 1870 0 0 34 0 34 34 0 8 0
vnodes 208 1870 0 0 99 0 99 99 0 8 0
namei 1024 6255 0 6255 1 0 1 1 0 8 1
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 528 4 0 2 1 0 1 1 0 8 0
pfiaddrpl 120 12 0 8 2 1 1 1 0 8 0
scxspl 192 6764 0 6764 1 0 1 1 0 8 1
plimitpl 152 37 0 30 1 0 1 1 0 8 0
sigapl 424 445 0 415 4 0 4 4 0 8 0
futexpl 56 5014 0 5013 1 0 1 1 0 8 0
knotepl 112 74 0 55 1 0 1 1 0 8 0
kqueuepl 144 39 0 36 1 0 1 1 0 8 0
pipelkpl 16 110 0 100 1 0 1 1 0 8 0
pipepl 120 220 0 201 2 0 2 2 0 8 1
fdescpl 432 430 0 415 2 0 2 2 0 8 0
filepl 120 2666 0 2566 4 0 4 4 0 8 0
lockfpl 104 41 0 40 1 0 1 1 0 8 0
lockfspl 48 17 0 16 1 0 1 1 0 8 0
sessionpl 112 17 0 7 1 0 1 1 0 8 0
pgrppl 48 19 0 9 1 0 1 1 0 8 0
ucredpl 96 208 0 201 1 0 1 1 0 8 0
zombiepl 144 415 0 415 1 0 1 1 0 8 1
processpl 920 445 0 415 4 0 4 4 0 8 0
procpl 624 715 0 676 4 0 4 4 0 8 1
sosppl 128 5 0 5 2 1 1 1 0 8 1
sockpl 400 426 0 407 3 0 3 3 0 8 1
mcl64k 65536 20 0 20 1 0 1 1 0 8 1
mcl16k 16384 2 0 2 2 1 1 1 0 8 1
mcl12k 12288 5 0 5 2 1 1 1 0 8 1
mcl9k 9216 5 0 5 2 1 1 1 0 8 1
mcl8k 8192 8 0 8 2 1 1 1 0 8 1
mcl4k 4096 31 0 31 2 1 1 1 0 8 1
mcl2k2 2112 2 0 2 2 1 1 1 0 8 1
mcl2k 2048 73195 0 73141 26 18 8 20 0 8 0
mtagpl 96 42 0 5 2 1 1 1 0 8 0
mbufpl 256 119312 0 119126 23 2 21 22 0 8 8
bufpl 280 5898 0 546 383 0 383 383 0 8 0
anonpl 16 58649 0 44122 87 5 82 82 0 107 16
amapchunkpl 152 2226 0 2096 23 4 19 19 0 158 13
amappl16 192 2032 0 1141 57 4 53 57 0 8 8
amappl15 184 2 0 0 1 0 1 1 0 8 0
amappl14 176 138 0 130 1 0 1 1 0 8 0
amappl13 168 250 0 243 1 0 1 1 0 8 0
amappl12 160 129 0 124 1 0 1 1 0 8 0
amappl11 152 46 0 37 1 0 1 1 0 8 0
amappl10 144 16 0 10 1 0 1 1 0 8 0
amappl9 136 377 0 376 1 0 1 1 0 8 0
amappl8 128 331 0 288 2 0 2 2 0 8 0
amappl7 120 106 0 94 1 0 1 1 0 8 0
amappl6 112 22 0 18 1 0 1 1 0 8 0
amappl5 104 256 0 244 1 0 1 1 0 8 0
amappl4 96 533 0 506 1 0 1 1 0 8 0
amappl3 88 220 0 213 1 0 1 1 0 8 0
amappl2 80 2712 0 2636 2 0 2 2 0 8 0
amappl1 72 16876 0 16453 22 12 10 17 0 8 0
amappl 80 942 0 900 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 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 434 0 417 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 434 0 417 1 0 1 1 0 8 0
vmmpekpl 168 6758 0 6729 2 0 2 2 0 8 0
vmmpepl 168 57515 0 55436 110 9 101 106 0 357 10
vmsppl 272 433 0 417 2 0 2 2 0 8 0
pdppl 4096 874 0 836 6 1 5 6 0 8 0
pvpl 32 179508 0 161907 196 3 193 193 0 265 38
pmappl 200 433 0 417 1 0 1 1 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 263 0 26 7 0 7 7 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(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823d8c2d) at panic+0x15c sys/kern/subr_prf.c:207
syn_cache_insert(fffffd8053899e80,ffff800000ac1000) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d678718,ffff80001d6786c8,fffffd80591727c4,14,fffffd805da70af8,fffffd8059172700) at syn_cache_add+0x66b
tcp_input(ffff80001d678a18,ffff80001d678a24,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d678a18,ffff80001d678a24,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d678a18,ffff80001d678a24,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d678a18,ffff80001d678a24,4,0,ffff800000677800) at ip_input_if+0x571
ipv4_input(ffff800000677800,fffffd8059172700) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000677800,fffffd8059172700,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000677800,fffffd8059172700,0) at loinput+0x4f sys/net/if_loop.c:239
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff800000677800,ffff80001d678b68) at if_input_process+0xf8 sys/net/if.c:936
ifiq_process(ffff800000677bb8) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Jul 31, 2020, 10:02:17 PM7/31/20
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: d7a9fa61 Ensure DECLINE messages always contain the addres..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=103d587c900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150e7668900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+152205...@syzkaller.appspotmail.com
login: panic: syn_cache_insert: cacheoverflow: impossible
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
rbx 0xffff80001d677b20
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffff80001d677a30
r9 0xffffffff817fa6cf kprintf+0x15f
r10 0x1
r11 0xa64ba111049bcef5
r12 0x3000000008
r13 0xffff80001d677a80
r14 0x100
r15 0x1
rip 0xffffffff81e60e68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d677a60
process=0xffff8000fffff220 user=0xffff80001d673000, vmspace=0xffffffff82869550
estcpu=0, cpticks=0, pctcpu=0.0
71026 5207 50297 0 3 0x10008a pause ksh
50297 463637 92652 0 2 0x12 sshd
97034 445587 1 0 3 0x100083 ttyin getty
92652 120059 1 0 3 0x80 select sshd
12494 301104 76427 73 3 0x100090 kqread syslogd
76427 478787 1 0 3 0x100082 netio syslogd
3259 219644 1 77 3 0x100090 poll dhclient
74344 81434 1 0 3 0x80 poll dhclient
46967 423925 0 0 3 0x14200 bored smr
99537 471374 0 0 2 0x14200 zerothread
7636 89143 0 0 3 0x14200 aiodoned aiodoned
6978 287485 0 0 3 0x14200 syncer update
1377 12407 0 0 3 0x14200 cleaner cleaner
93408 412848 0 0 3 0x14200 reaper reaper
56906 108407 0 0 3 0x14200 pgdaemon pagedaemon
63305 231778 0 0 3 0x14200 bored crynlk
28590 320756 0 0 3 0x14200 bored crypto
50521 326006 0 0 3 0x40014200 acpi0 acpi0
*71596 284037 0 0 7 0x14200 softnet
67496 495658 0 0 3 0x14200 bored systqmp
33744 68412 0 0 3 0x14200 bored systq
43043 120770 0 0 3 0x40014200 bored softclock
13767 425860 0 0 3 0x40014200 idle0
1 393318 0 0 3 0x82 wait init
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 0 0K 2K 78643K 13 0
proc 47 38K 46K 78643K 278 0
ether_multi 1 0K 0K 78643K 1 0
exec 0 0K 1K 78643K 151 0
UVM aobj 3 2K 2K 78643K 3 0
temp 18 3845K 3909K 78643K 1422 0
kqueue 2 2K 2K 78643K 2 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 6 0 5 2 1 1 1 0 8 0
tcpcb 544 10 0 5 1 0 1 1 0 8 0
inpcb 296 24 0 16 1 0 1 1 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
ffsino 240 1389 0 15 81 0 81 81 0 8 0
nchpl 144 1563 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1398 0 0 26 0 26 26 0 8 0
vnodes 208 1398 0 0 74 0 74 74 0 8 0
namei 1024 3485 0 3485 1 0 1 1 0 8 1
scxspl 192 3175 0 3175 1 0 1 1 0 8 1
plimitpl 152 13 0 8 1 0 1 1 0 8 0
sigapl 424 191 0 166 4 0 4 4 0 8 0
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 144 1 0 0 1 0 1 1 0 8 0
pipepl 272 57 0 53 1 0 1 1 0 8 0
fdescpl 432 177 0 166 2 0 2 2 0 8 0
filepl 120 824 0 779 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 1 0 1 1 0 8 1
processpl 928 191 0 166 4 0 4 4 0 8 0
procpl 624 191 0 166 3 0 3 3 0 8 0
sockpl 400 66 0 48 2 0 2 2 0 8 0
mcl4k 4096 10 0 10 2 1 1 1 0 8 1
mcl2k 2048 5269 0 5239 7 1 6 7 0 8 1
mtagpl 96 2 0 2 1 1 0 1 0 8 0
mbufpl 256 9149 0 9103 6 2 4 5 0 8 0
bufpl 280 1801 0 72 124 0 124 124 0 8 0
anonpl 16 17300 0 16176 7 2 5 7 0 107 0
amapchunkpl 152 474 0 438 2 0 2 2 0 158 0
amappl16 192 67 0 62 1 0 1 1 0 8 0
amappl15 184 2 0 1 1 0 1 1 0 8 0
amappl13 168 12 0 11 1 0 1 1 0 8 0
amappl12 160 21 0 19 1 0 1 1 0 8 0
amappl11 152 40 0 31 1 0 1 1 0 8 0
amappl10 144 5 0 3 1 0 1 1 0 8 0
amappl9 136 175 0 174 1 0 1 1 0 8 0
amappl8 128 197 0 196 1 0 1 1 0 8 0
amappl7 120 76 0 69 1 0 1 1 0 8 0
amappl6 112 19 0 16 1 0 1 1 0 8 0
amappl5 104 177 0 168 1 0 1 1 0 8 0
amappl4 96 396 0 373 1 0 1 1 0 8 0
amappl3 88 119 0 111 1 0 1 1 0 8 0
amappl2 80 707 0 658 2 0 2 2 0 8 0
amappl1 72 12214 0 11830 16 8 8 16 0 8 0
amappl 80 354 0 335 1 0 1 1 0 84 0
uaddrrnd 24 177 0 166 1 0 1 1 0 8 0
vmmpekpl 168 5203 0 5185 1 0 1 1 0 8 0
vmmpepl 168 26200 0 25439 48 12 36 48 0 357 2
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 70304 0 67556 27 1 26 26 0 265 1
pmappl 200 176 0 166 1 0 1 1 0 8 0
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
HEAD commit: d7a9fa61 Ensure DECLINE messages always contain the addres..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=103d587c900000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=1522052047471ac0c4be
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=173e17b8900000
dashboard link: https://syzkaller.appspot.com/bug?extid=1522052047471ac0c4be
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150e7668900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+152205...@syzkaller.appspotmail.com
login: panic: syn_cache_insert: cacheoverflow: impossible
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*284037 71596 0 0x14000 0x200 0 softnet
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823e79fb) at panic+0x164 sys/kern/subr_prf.c:218
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: 1
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
syn_cache_insert: cacheoverflow: impossible
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823e79fb) at panic+0x164 sys/kern/subr_prf.c:218
end trace frame: 0x0, count: 1
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
syn_cache_insert: cacheoverflow: impossible
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80001d677a70
end trace frame: 0x0, count: -14
ddb> show registers
rdi 0
rsi 0x1
rbx 0xffff80001d677b20
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffff80001d677a30
r9 0xffffffff817fa6cf kprintf+0x15f
r10 0x1
r11 0xa64ba111049bcef5
r12 0x3000000008
r13 0xffff80001d677a80
r14 0x100
r15 0x1
rip 0xffffffff81e60e68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d677a60
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (softnet) pid=284037 stat=onproc
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff80001d6519c0,0xffff80001d651280
pri=32, usrpri=50, nice=20
process=0xffff8000fffff220 user=0xffff80001d673000, vmspace=0xffffffff82869550
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
51302 177816 71026 0 3 0x82 netcon2 syz-executor4572
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
71026 5207 50297 0 3 0x10008a pause ksh
50297 463637 92652 0 2 0x12 sshd
97034 445587 1 0 3 0x100083 ttyin getty
92652 120059 1 0 3 0x80 select sshd
12494 301104 76427 73 3 0x100090 kqread syslogd
76427 478787 1 0 3 0x100082 netio syslogd
3259 219644 1 77 3 0x100090 poll dhclient
74344 81434 1 0 3 0x80 poll dhclient
46967 423925 0 0 3 0x14200 bored smr
99537 471374 0 0 2 0x14200 zerothread
7636 89143 0 0 3 0x14200 aiodoned aiodoned
6978 287485 0 0 3 0x14200 syncer update
1377 12407 0 0 3 0x14200 cleaner cleaner
93408 412848 0 0 3 0x14200 reaper reaper
56906 108407 0 0 3 0x14200 pgdaemon pagedaemon
63305 231778 0 0 3 0x14200 bored crynlk
28590 320756 0 0 3 0x14200 bored crypto
50521 326006 0 0 3 0x40014200 acpi0 acpi0
*71596 284037 0 0 7 0x14200 softnet
67496 495658 0 0 3 0x14200 bored systqmp
33744 68412 0 0 3 0x14200 bored systq
43043 120770 0 0 3 0x40014200 bored softclock
13767 425860 0 0 3 0x40014200 idle0
1 393318 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 9438 6318K 6319K 78643K 10537 0
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
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 0 0K 2K 78643K 13 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
UFS mount 5 36K 36K 78643K 5 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
ACPI 1809 195K 288K 78643K 12938 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
NFS daemon 1 16K 16K 78643K 1 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
MSDOSFS mount 1 16K 16K 78643K 1 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 55 2K 3K 78643K 688 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 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 3 0K 0K 78643K 3 0
crypto data 1 1K 1K 78643K 1 0
temp 18 3845K 3909K 78643K 1422 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
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
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 6 0 5 2 1 1 1 0 8 0
tcpcb 544 10 0 5 1 0 1 1 0 8 0
inpcb 296 24 0 16 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 1389 0 15 86 0 86 86 0 8 0
ffsino 240 1389 0 15 81 0 81 81 0 8 0
nchpl 144 1563 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1398 0 0 26 0 26 26 0 8 0
vnodes 208 1398 0 0 74 0 74 74 0 8 0
namei 1024 3485 0 3485 1 0 1 1 0 8 1
scxspl 192 3175 0 3175 1 0 1 1 0 8 1
plimitpl 152 13 0 8 1 0 1 1 0 8 0
sigapl 424 191 0 166 4 0 4 4 0 8 0
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 144 1 0 0 1 0 1 1 0 8 0
pipepl 272 57 0 53 1 0 1 1 0 8 0
fdescpl 432 177 0 166 2 0 2 2 0 8 0
filepl 120 824 0 779 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 1 0 1 1 0 8 1
processpl 928 191 0 166 4 0 4 4 0 8 0
procpl 624 191 0 166 3 0 3 3 0 8 0
sockpl 400 66 0 48 2 0 2 2 0 8 0
mcl4k 4096 10 0 10 2 1 1 1 0 8 1
mcl2k 2048 5269 0 5239 7 1 6 7 0 8 1
mtagpl 96 2 0 2 1 1 0 1 0 8 0
mbufpl 256 9149 0 9103 6 2 4 5 0 8 0
bufpl 280 1801 0 72 124 0 124 124 0 8 0
anonpl 16 17300 0 16176 7 2 5 7 0 107 0
amapchunkpl 152 474 0 438 2 0 2 2 0 158 0
amappl16 192 67 0 62 1 0 1 1 0 8 0
amappl15 184 2 0 1 1 0 1 1 0 8 0
amappl13 168 12 0 11 1 0 1 1 0 8 0
amappl12 160 21 0 19 1 0 1 1 0 8 0
amappl11 152 40 0 31 1 0 1 1 0 8 0
amappl10 144 5 0 3 1 0 1 1 0 8 0
amappl9 136 175 0 174 1 0 1 1 0 8 0
amappl8 128 197 0 196 1 0 1 1 0 8 0
amappl7 120 76 0 69 1 0 1 1 0 8 0
amappl6 112 19 0 16 1 0 1 1 0 8 0
amappl5 104 177 0 168 1 0 1 1 0 8 0
amappl4 96 396 0 373 1 0 1 1 0 8 0
amappl3 88 119 0 111 1 0 1 1 0 8 0
amappl2 80 707 0 658 2 0 2 2 0 8 0
amappl1 72 12214 0 11830 16 8 8 16 0 8 0
amappl 80 354 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 2 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
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 5203 0 5185 1 0 1 1 0 8 0
vmmpepl 168 26200 0 25439 48 12 36 48 0 357 2
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 70304 0 67556 27 1 26 26 0 265 1
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 112 208 0 6 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(ffffffff823e79fb) at panic+0x164 sys/kern/subr_prf.c:218
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
taskq_thread(ffff80000002b080) at taskq_thread+0x92 sys/kern/kern_task.c:438
end trace frame: 0x0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823e79fb) at panic+0x164 sys/kern/subr_prf.c:218
end trace frame: 0x0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
syn_cache_insert(fffffd805d5cbd70,ffff800000ac3100) at syn_cache_insert+0x944 sys/netinet/tcp_input.c:3235
syn_cache_add(ffff80001d677ef8,ffff80001d677ea8,fffffd805e0950c4,14,fffffd805da7bc88,fffffd805e095000) at syn_cache_add+0x66b
tcp_input(ffff80001d6781f8,ffff80001d678204,6,2) at tcp_input+0x37f6 sys/netinet/tcp_input.c:830
ip_deliver(ffff80001d6781f8,ffff80001d678204,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668
ip_ours(ffff80001d6781f8,ffff80001d678204,8b,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563
ip_input_if(ffff80001d6781f8,ffff80001d678204,4,0,ffff800000679000) at ip_input_if+0x571
ipv4_input(ffff800000679000,fffffd805e095000) at ipv4_input+0x48 sys/netinet/ip_input.c:215
if_input_local(ffff800000679000,fffffd805e095000,2) at if_input_local+0xf9 sys/net/if.c:769
loinput(ffff800000679000,fffffd805e095000) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff800000679000,ffff80001d678338) at if_input_process+0xda sys/net/if.c:832
ifiq_process(ffff8000006793c0) at ifiq_process+0x80 sys/net/ifq.c:768
Reply all
Reply to author
Forward
0 new messages