[P4] L2_L3-fixed.p4

[Sándor Laki]

Hi,

Sajnos az L2-L3 példánk nem igazán működik éles DPDK-val. Az elhasalási 
pontok lent mind 2.2.0, mind 16.04 esetén. Ezek eltérők. Igazából nem 
látom, hogy hol lehet a gond. Az első esetben már a dmac_classifier 
tábla létrehozásakor elszáll. Svn-ben fent van az aktuális változat...

A futtatási argumentumok:
P4_GCC_OPTS="-DP4DPDK_DEBUG -g" ./launch.sh examples/l2_l3-fixed.p4 -- 
-c 0x3 -n 4 - --log-level 3 -- -p 0x3 --config "\"(0,0,0),(1,0,1)\""

-------------------------

DPDK 2.2.0:

[DEBUG] Initializing stateful memories...
[DEBUG] Initializing tables on socket 0...
[DEBUG] Creating instances for table smac on socket 0 (2 copies)
[DEBUG] Created table smac on socket 0.
[DEBUG] Created table smac on socket 0.
[DEBUG] Creating instances for table dmac on socket 0 (2 copies)
[DEBUG] Created table dmac on socket 0.
[DEBUG] Created table dmac on socket 0.
[DEBUG] Creating instances for table ipv4_lpm on socket 0 (2 copies)
[DEBUG] Created table ipv4_lpm on socket 0.
[DEBUG] Created table ipv4_lpm on socket 0.
[DEBUG] Creating instances for table ipv4_forward on socket 0 (2 copies)
[DEBUG] Created table ipv4_forward on socket 0.
[DEBUG] Created table ipv4_forward on socket 0.
[DEBUG] Creating instances for table send_frame on socket 0 (2 copies)
[DEBUG] Created table send_frame on socket 0.
[DEBUG] Created table send_frame on socket 0.
[DEBUG] Creating instances for table dmac_classifier on socket 0 (2 copies)
[DEBUG] Created table dmac_classifier on socket 0.
EAL: Error - exiting with code: 1
   Cause: DPDK: Unable to create the hash on socket 0: missing entry

gdb: bt esetén No stack.

--------------------------

DPDP 16.04:

   :::: Handle msg: 0
   :::: ADD_TABLE_ENTRY
     :: rval=0
[DEBUG] MSG from controller 104 dmac_classifier
[DEBUG] Reply from the control plane arrived.
[DEBUG] Addig new entry to dmac_classifier with action set_fwd_mode

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff753fe700 (LWP 9706)]
0x000000000046948c in rte_hash_add_key ()
(gdb) bt
#0  0x000000000046948c in rte_hash_add_key ()
#1  0x0000000000435ea6 in exact_add (t=0xa39750,
     key=key at entry=0x7fff753fdb40 "", value=value at entry=0x7fff753fdb20 "\b")
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//../../src/hardware_dep/dpdk/data_plane/dpdk_tables.c:213
#2  0x0000000000433e8c in exact_add_promote (tableid=tableid at entry=5,
     key=key at entry=0x7fff753fdb40 "", value=value at entry=0x7fff753fdb20 "\b")
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//../../src/hardware_dep/dpdk/data_plane/dpdk_lib.c:626
#3  0x000000000043909d in dmac_classifier_add (action=...,
     field_instance_ethernet_dstAddr=0xc46700 "")
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//src_hardware_indep/controlplane.c:105
#4  dmac_classifier_add_table_entry (ctrl_m=0x7fff753fdba0)
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//src_hardware_indep/controlplane.c:249
#5  recv_from_controller (ctrl_m=ctrl_m at entry=0x7fff753fdba0)
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//src_hardware_indep/controlplane.c:391
#6  0x0000000000432a0d in handle_p4_msg (buffer=<optimized out>,
     length=<optimized out>, cb=0x438d30 <recv_from_controller>)
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//../../src/hardware_dep/shared/ctrl_plane/handlers.c:32
#7  0x0000000000431b38 in input_processor (bg=0xa397d0)
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//../../src/hardware_dep/shared/ctrl_plane/ctrl_plane_backend.c:103
#8  0x000000000043365c in do_work (p=0xc51f90)
     at 
/home/laki/svn/repos/trunk/build/l2_l3-fixed//../../src/hardware_dep/shared/ctrl_plane/threadpool.c:80
#9  0x00007ffff74b2184 in start_thread (arg=0x7fff753fe700)
     at pthread_create.c:312
#10 0x00007ffff71df37d in clone ()
     at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111


Bármi ötlet?

Üdv.

Sanyi


-- 
Sándor Laki, PhD
Assistant professor
Department of Information Systems
Eötvös Loránd University
Pázmány Péter stny. 1/C
H-1117, Budapest, Hungary
Room 2.506
Web: http://lakis.web.elte.hu
Phone: +36 1 372 2869 / 8477
Cell: +36 70 374 2646


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