uname -a and verify if the kernel is the original rtai one possibility for Unknown symbol is a vanilla kernel and not the rtai
if you have Ubuntu or other new distribution is possible you customer have update the new package new kernel package without rtai and you have "Unknown symbol" Is one possibility Ciao Fede On 08/31/10 18:58, Jon Elson wrote: > I had a customer report an error starting the ppmc driver yesterday, and > suggested he check the loadrt > line for the correct parameter specifying the parallel port address. > That was his problem, he used > cfg="0x1234" instead of what this driver requires, which is > port_addr="0x1234" > The message he got was : > > Debug file information: > insmod: error inserting > '/usr/realtime-2.6.32-122-rtai/modules/emc2/hal_ppmc.ko': -1 Unknown > symbol in module > ppmc_load.hal:15: exit value: 1 > > I know this message is produced by insmod, and so we can't change that. > But, "unknown symbol" is a pretty vague > description of what is actually wrong. I wonder if loadrt could check > the command line parameters against the > ones the kernel module is expecting, or if we can come up with a way the > kernel module could report a message > when it gets a parameter it doesn't recognize? > > Thanks, > > Jon > > ------------------------------------------------------------------------------ > This SF.net Dev2Dev email is sponsored by: > > Show off your parallel programming skills. > Enter the Intel(R) Threading Challenge 2010. > http://p.sf.net/sfu/intel-thread-sfd > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
