Description
Description
ICMP with tapv2 interfaces with jumbo frames crash in VPP master and 19.04
VPP side
DBGvpp# create tap
DBGvpp# set interface state tap0 up
DBGvpp# set interface ip address tap0 10.10.2.1/24
Linux side
jerome@jerome-virtual-machine:~/devel/vpp$ sudo ifconfig tap0 mtu 9000
jerome@jerome-virtual-machine:~/devel/vpp$ sudo ifconfig tap0 10.10.2.2/24
jerome@jerome-virtual-machine:~/devel/vpp$ ping 10.10.2.1/24 -s 30000
Here is the stack I get in in vpp:
DBGvpp#
Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault.
0x00007ffff6e0fa4f in mm256_loadu_si256 (_P=0x10027ffff4) at /usr/lib/gcc/x86_64-linux-gnu/8/include/avxintrin.h:921
921 return *__P;
(gdb) #0 0x00007ffff6e0fa4f in mm256_loadu_si256 (_P=0x10027ffff4) at /usr/lib/gcc/x86_64-linux-gnu/8/include/avxintrin.h:921
#1 clib_mov128blocks (dst=0x10027fffc0 "", src=0x10027fffb4 "", n=36072) at /home/jerome/devel/vpp/src/vppinfra/memcpy_avx2.h:99
#2 0x00007ffff6e0fe88 in clib_memcpy_fast (dst=0x10027f8d40, src=0x10027f8d34, n=65512)
at /home/jerome/devel/vpp/src/vppinfra/memcpy_avx2.h:218
#3 0x00007ffff6e13e2d in vlib_buffer_chain_linearize (vm=0x7ffff6cafc80 <vlib_global_main>, b=0x10027f1e80)
at /home/jerome/devel/vpp/src/vlib/buffer_funcs.h:1443
#4 0x00007ffff6e17034 in ip4_reass_finalize (vm=0x7ffff6cafc80 <vlib_global_main>, node=0x7fffb7bf3280,
rm=0x7ffff7f54160 <ip4_reass_main>, rt=0x7fffb7fa4720, reass=0x7fffb7f7b0c8, bi0=0x7fffb69fda4c, next0=0x7fffb69fda50,
error0=0x7fffb69fda54, is_feature=false) at /home/jerome/devel/vpp/src/vnet/ip/ip4_reassembly.c:581
#5 0x00007ffff6e17c62 in ip4_reass_update (vm=0x7ffff6cafc80 <vlib_global_main>, node=0x7fffb7bf3280,
rm=0x7ffff7f54160 <ip4_reass_main>, rt=0x7fffb7fa4720, reass=0x7fffb7f7b0c8, bi0=0x7fffb69fda4c, next0=0x7fffb69fda50,
error0=0x7fffb69fda54, is_feature=false) at /home/jerome/devel/vpp/src/vnet/ip/ip4_reassembly.c:936
#6 0x00007ffff6e180e5 in ip4_reassembly_inline (vm=0x7ffff6cafc80 <vlib_global_main>, node=0x7fffb7bf3280, frame=0x7fffb800afc0,
is_feature=false) at /home/jerome/devel/vpp/src/vnet/ip/ip4_reassembly.c:1038
#7 0x00007ffff6e184bf in ip4_reass_node_fn_avx2 (vm=0x7ffff6cafc80 <vlib_global_main>, node=0x7fffb7bf3280, frame=0x7fffb800afc0)
at /home/jerome/devel/vpp/src/vnet/ip/ip4_reassembly.c:1118
#8 0x00007ffff6c06381 in dispatch_node (vm=0x7ffff6cafc80 <vlib_global_main>, node=0x7fffb7bf3280, type=VLIB_NODE_TYPE_INTERNAL,
dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x7fffb800afc0, last_time_stamp=1632188766404)
at /home/jerome/devel/vpp/src/vlib/main.c:1213
#9 0x00007ffff6c06b56 in dispatch_pending_node (vm=0x7ffff6cafc80 <vlib_global_main>, pending_frame_index=4,
last_time_stamp=1632188766404) at /home/jerome/devel/vpp/src/vlib/main.c:1381
#10 0x00007ffff6c08911 in vlib_main_or_worker_loop (vm=0x7ffff6cafc80 <vlib_global_main>, is_main=1)
at /home/jerome/devel/vpp/src/vlib/main.c:1824
#11 0x00007ffff6c0918c in vlib_main_loop (vm=0x7ffff6cafc80 <vlib_global_main>) at /home/jerome/devel/vpp/src/vlib/main.c:1926
#12 0x00007ffff6c09eff in vlib_main (vm=0x7ffff6cafc80 <vlib_global_main>, input=0x7fffb69fdfb0)
at /home/jerome/devel/vpp/src/vlib/main.c:2115
#13 0x00007ffff6c76bb7 in thread0 (arg=140737333886080) at /home/jerome/devel/vpp/src/vlib/unix/main.c:640
#14 0x00007ffff6a9afb4 in clib_calljmp () from /home/jerome/devel/vpp/build-root/install-vpp_debug-native/vpp/lib/libvppinfra.so.19.08
#15 0x00007fffffffd1e0 in ?? ()
#16 0x00007ffff6c77173 in vlib_unix_main (argc=2, argv=0x7fffffffe4f8) at /home/jerome/devel/vpp/src/vlib/unix/main.c:710
#17 0x000055555555c2bc in main (argc=2, argv=0x7fffffffe4f8) at /home/jerome/devel/vpp/src/vpp/vnet/main.c:280
Assignee
Ole Trøan
Reporter
Jerome Tollet
Comments
- JIRAUSER14712 (Wed, 27 Oct 2021 08:34:20 +0000): Fixed by commit 7331005c16d0e1499080899b2a0676a0cd945595
Original issue: https://jira.fd.io/browse/VPP-1695