[LAU] can't compile realtime kernel: error: conflicting types for ‘irqreturn_t’

Dietrich Bollmann dietrichbollmann at web.de
Fri May 15 01:02:11 EDT 2009


Hi Roberto,

...is seems that my first answer got lost, sorry for answering so
late...

You solved my problem and I finally also understood the strategy :)

So I now have a running realtime kernel - but unfortunately the glitches
remain...

I wonder if there is some tool which allows to trace them down to some
application / driver / ... ?

Thanks for your help,

Dietrich



On Thu, 2009-05-07 at 16:11 +0200, Roberto Gordo Saez wrote:
> On Thu, May 07, 2009 at 07:51:58PM +0900, Dietrich Bollmann wrote:
> > Hi Roberto,
> > 
> > Thanks for your answer - I disabled the comedi drivers and tried
> > again ... getting yet another error:
> > 
> > 
> >   CC [M]  lib/reed_solomon/reed_solomon.o
> >   CC [M]  lib/zlib_deflate/deflate.o
> >   CC [M]  lib/zlib_deflate/deftree.o
> >   CC [M]  lib/zlib_deflate/deflate_syms.o
> >   LD [M]  lib/zlib_deflate/zlib_deflate.o
> >   Building modules, stage 2.
> >   MODPOST 2283 modules
> > ERROR:
> > "there_is_no_init_MUTEX_LOCKED_for_RT_semaphores" [drivers/staging/rt2870/rt2870sta.ko] undefined!
> > WARNING: modpost: Found 1 section mismatch(es).
> 
> Well it looks that this time the driver for wireless Ralink 2870
> devices is having problems with the -rt patch. Disabling it may help
> (unless you need it), or try the linux-rt-users mailing list at
> vger.kernel.org.
> 
> > I hope some day the realtime kernel is delivered in form of a package
> > and there is no need for such emails anymore...
> 
> There is linux-image-2.6.28-3-rt in Ubuntu (universe), but I don't use
> those packages so can't say how good are...
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