[openib-general] RE: Problems with SDP on Itanium

[Bob Woodruff]

Michael wrote,
>No, dont think I've seen that one, but its been a while
>since I last run anything on Itanium.
>Can you try to debug it a little? What does it mean that
>an application "hangs"? Is some data sent from one side not received
>by another one?

>-- 
>MST

Looks like it is stuck in the write()system call. 

103: 1048573 bytes     21 times -->   3853.24 Mbps in    2076.17 usec
104: 1048576 bytes     24 times -->   3854.65 Mbps in    2075.42 usec
105: 1048579 bytes     24 times -->   3847.86 Mbps in    2079.08 usec
106: 1572861 bytes     24 times --> 
Program received signal SIGINT, Interrupt.
0xa000000000010641 in ?? ()
(gdb) bt
#0  0xa000000000010641 in ?? ()
#1  0x20000000001bf9c0 in write () from /lib/tls/libc.so.6.1
#2  0x4000000000004920 in SendData ()
#3  0x40000000000036e0 in main ()

Here is the gdb traceback from the other side after it hangs.
It is blocked in a read() system call. 

(gdb) run
Starting program: /home/exports/NetPIPE_3.5-SDP/NPtcp 
Failed to read a valid object file image from memory.
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
Send and receive buffers are 135168 and 135168 bytes
(A bug in Linux doubles the requested buffer sizes)

Program received signal SIGINT, Interrupt.
0xa000000000010641 in ?? ()
(gdb) bt
#0  0xa000000000010641 in ?? ()
#1  0x20000000001bf8c0 in read () from /lib/tls/libc.so.6.1
#2  0x4000000000004a50 in RecvData ()
#3  0x4000000000003aa0 in main ()