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<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I executed the example ucmatose
and got the following failure:</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"># ucmatose<BR>librdmacm: couldn't
read ABI version.<BR>failed to create event channel</SPAN></FONT></P></DIV>
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style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
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<P class=MsoNormal><FONT face=Arial color=#0000ff size=2><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">it seems that the cma kernel
module don't create any ABI file, but the user level
library</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">tries to search for it
anyway.</SPAN></FONT></P></DIV>
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face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">did you
see this problem before?</SPAN></FONT></DIV>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">This looks like a
potential backport issue. The ABI file is usually created under
misc/rdma_cm, but I believe that the backport patch moves the rdma_cm
directory under infiniband. (The misc directory doesn’t exist.)
The library typically looks under misc/rdma_cm. (Note that very old
versions of the RDMA CM did not create an ABI file, so it’s possible that you
have that version.)</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">If I remember
correctly, the event channel code went into the CMA in May. Can you tell
me what version of the ucma and librdmacm you are using?</SPAN></FONT></P>
<P class=MsoNormal><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT color=#0000ff>[Dotan
Barak] </FONT></SPAN></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006></SPAN></SPAN></FONT> </P>
<P class=MsoNormal><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006></SPAN></SPAN></FONT> </P></DIV></BLOCKQUOTE>
<P class=MsoNormal dir=ltr><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006>in the kernel code: cma.c:</SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT color=#0000ff>#define CMA_VERSION
0x00</FONT></SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT color=#0000ff></FONT><BR> </P>
<DIV></SPAN></SPAN></FONT><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><SPAN class=975131610-20072006><FONT color=#0000ff>in
the librdma header files:</FONT></SPAN></SPAN></SPAN></FONT></DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><SPAN class=975131610-20072006></SPAN><FONT face=Arial
color=#0000ff size=2>rdma_cma_abi.h:#define
RDMA_USER_CM_MIN_ABI_VERSION 1<BR>rdma_cma_abi.h:#define
RDMA_USER_CM_MAX_ABI_VERSION
2<BR></FONT></SPAN></SPAN></FONT></DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT face=Arial color=#0000ff size=2>do you meant to
those version numbers?</FONT></SPAN></SPAN></FONT></DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT face=Arial color=#0000ff
size=2> </DIV></FONT></SPAN></SPAN></FONT>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=975131610-20072006><FONT face=Arial color=#0000ff
size=2>Dotan</DIV></FONT></SPAN></SPAN></FONT></BODY></HTML>