[openib-general] ping problem with ammasso cards(iWARP interface)

[Ravinandan Arakali]

Pradipta,
Okay, thanks.. Initially, I was not sure since I don't remember non-zero
values in /proc/krping. When I re-ran the krping test, I see following
output
openfab2:~ # cat /proc/krping
1-amso0 891376 55711 891376 55711 1782720 27855 1782784 27856

As you mentioned, the RDMA traffic seems to be flowing indeed !
Any idea why rping is dumping core ?

Has any testing been done using SDP with ammasso cards ?

Regards,
Ravi


-----Original Message-----
From: Pradipta Kumar Banerjee [mailto:bpradip at in.ibm.com]
Sent: Friday, July 07, 2006 11:20 PM
To: Ravinandan Arakali
Cc: Leonid. Grossman (E-mail); sivakumar.subramani at neterion.com;
openib-general at openib.org
Subject: Re: [openib-general] ping problem with ammasso cards(iWARP
interface)


Ravinandan Arakali wrote:
> Pradipta,
> Following is the output from gdb after core dump. I have also copy-pasted
> the gdb output on client system.
>
> Attached is the dmesg output when krping test is run in verbose mode.
> The ping data on the sender(client) seems okay. The content is shifted
> forward by one character for each packet. On receiver, after receiving
ping
> pkt 9, it seems to jump to pkt no. 1935. Not sure if it's because messages
> can be lost during writing to /var/log/messages ?
krping is indeed working!!...Using 'verbose' allows you to see the ping
data.
When not using 'verbose' you see only 'send/recv' messages.
>
> -----------------------------------------
> (gdb) run -s -vV -C100 -d -a 0.0.0.0 -p 9999
> Starting program:
> /tmp/ib/src/userspace/librdmacm/examples/.libs/rping -s -vV -C100 -d -a
> 0.0.0.0 -p 9999
> [Thread debugging using libthread_db enabled]
> [New Thread -1210054992 (LWP 3668)]
> ipaddr (0.0.0.0)
> port 9999
> created cm_id 0x804e6e0
> [New Thread -1210057824 (LWP 3671)]
> rdma_bind_addr successful
> rdma_listen
> cma_event type 4 cma_id 0x804e968 (child)
> child cma 0x804e968
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1210054992 (LWP 3668)]
> rping_setup_qp (cb=0x0, cm_id=0x804e968) at examples/rping.c:514
> 514             cb->pd = ibv_alloc_pd(cm_id->verbs);
> (gdb) bt
> #0  rping_setup_qp (cb=0x0, cm_id=0x804e968) at examples/rping.c:514
> #1  0x0804a716 in main (argc=9, argv=Cannot access memory at address 0x6
> ) at examples/rping.c:767
> (gdb)
>
> ---------------------------------
> (gdb) run -c -vV -C100 -d  -a 17.2.2.102 -p 9999
> Starting program:
> /tmp/ib/src/userspace/librdmacm/examples/.libs/rping -c -vV -C100 -d  -a
> 17.2.2.102 -p 9999
> [Thread debugging using libthread_db enabled]
> [New Thread 47388824908032 (LWP 4620)]
> ipaddr (17.2.2.102)
> port 9999
> created cm_id 0x506b00
> [New Thread 1082132800 (LWP 4623)]
> cma_event type 0 cma_id 0x506b00 (parent)
> cma_event type 2 cma_id 0x506b00 (parent)
> rdma_resolve_addr - rdma_resolve_route successful
> created pd 0x506e60
> created channel 0x506e80
> created cq 0x506ea0
> created qp 0x506f40
> rping_setup_buffers called on cb 0x505010
> allocated & registered buffers...
> [New Thread 1090525504 (LWP 4624)]
> cq_thread started.
>
>