[Stgt-devel] Unable to open RDMA device

Pete Wyckoff pw
Wed Apr 30 21:27:21 CEST 2008

cameron at harr.org wrote on Tue, 29 Apr 2008 14:49 -0600:
> I'm trying to get iSer going, but my transport always seems to be stuck 
> at tcp and I'm not getting the performance I want (sgp_dd, other stuff). 
> I was getting some help from Eric Z. but figure this list might be a 
> little faster. FWIW, I currently have the 
> scsi-target-utils-0.2-20071227_1 rpm installed.
> In trying to get down at my problem, I've looked at a few things, and I 
> just noticed that when I try to restart tgtd, I get the following:
> Starting SCSI target daemon: CMA: unable to open RDMA device  OK  ]
> /bin/bash: line 1: 31787 Segmentation fault      tgtd
>                                                            [FAILED]
> and then just a single line in messages:
> Apr 29 14:41:40 test05 kernel: tgtd[31787]: segfault at 000000000000010c 
> rip 00000032dfc06be2 rsp 00007fff4b7d2930 error 4
> I couldn't see anything in the archives about CMA. Any suggestions?

Guess I'd go back to basic debugging here.  Run the startup script
with "-x" to see exactly what it's doing.  Start tgtd by hand and
see if it dies.  Recompile with -g and start it in the debugger,
then run it until you get a traceback.  There's not much to go on
so far.

		-- Pete

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