[ofa-general] smpquery regression in 1.3-rc1

[akepner at sgi.com]

On Thu, Dec 20, 2007 at 05:13:18PM +0000, Sasha Khapyorsky wrote:
> ...
> Yevgeny, Arthur, could you rerun smpquery with -dddd (for lot of debug
> stuff)?
> 

Well, just about any perturbation changes the behavior - run 
it under strace, or gdb, link the IB libraries statically, or 
look at the machine funny and it works fine. 

But using the debug flags reveals an apparent problem with the 
debug code itself:

# ./smpquery_1.3_rc1 -d -G nodeinfo 0x00066a01a000737c
ibwarn: [19328] smp_query: attr 0x15 mod 0x0 route DR path 0
ibwarn: [19328] mad_rpc: data offs 64 sz 64
mad data
0000 0000 0000 0000 fe80 0000 0000 0000
0002 0002 0251 0a6a 0000 0000 0103 0302
3452 0023 4040 0008 0804 ff40 0000 005e
0000 2012 1088 0000 0000 0000 0000 0000
Segmentation fault

and gdb shows:

(gdb) bt
#0  0x00002b0b9222ed0f in _IO_default_xsputn_internal () from /lib64/libc.so.6
#1  0x00002b0b92207177 in vfprintf () from /lib64/libc.so.6
#2  0x00002b0b9229577d in __vsprintf_chk () from /lib64/libc.so.6
#3  0x00002b0b922956c0 in __sprintf_chk () from /lib64/libc.so.6
#4  0x00002b0b91c71166 in portid2str (portid=0x7fff1905bc00) at src/portid.c:91
#5  0x00002b0b91c72529 in sa_rpc_call (ibmad_port=0x7fff1905b680,
    rcvbuf=0x7fff1905bb30, portid=0x7fff1905bc00, sa=0x7fff1905bac0, timeout=0)
    at src/sa.c:58
#6  0x00002b0b91c71791 in sa_call (rcvbuf=0x7fff1905bb30,
    portid=0x7fff1905bc00, sa=0x7fff1905bac0, timeout=0) at src/rpc.c:395
#7  0x00002b0b91c723bf in ib_path_query (srcgid=0x7fff1905be30 "\200",
    destgid=0x7fff1905be30 "\200", sm_id=0x7fff1905bc00, buf=0x7fff1905bb30)
    at ./include/infiniband/mad.h:790
#8  0x00002b0b91c7144f in ib_resolve_guid (portid=0x7fff1905bde0,
    guid=0x7fff1905bd20, sm_id=0x7fff1905bc00, timeout=<value optimized out>)
    at src/resolve.c:83
#9  0x00002b0b91c71610 in ib_resolve_portid_str (portid=0x7fff1905bde0,
    addr_str=0x7fff1905d341 "0x00066a01a000737c", dest_type=2, sm_id=0x0)
    at src/resolve.c:115
#10 0x0000000000401cd1 in main (argc=2, argv=0x7fff1905bfd0)
    at smpquery_1.3_rc1.c:522

-- 
Arthur