shmat: Invalid argument

[digitalhuman]

When running on my Raspberry Pi3 (Linux raspberrypi 4.4.38-v7+ #938 SMP Thu Dec 15 15:22:21 GMT 2016 armv7l GNU/Linux) with a BladeRF x115 I get this error:

kal -s GSM850 -v -D
debug: FPGA Master Clock Freq: 52000000
debug: decimation : 192
debug: RX Subdev Spec : B
debug: Antenna : RX2
debug: Gain : 0.450000
shmat: Invalid argument
terminate called after throwing an instance of 'std::runtime_error'
what(): circular_buffer: shmat
Aborted

What to do next?

[mikerbts]

Having the same issue here, is it possible this error is being thrown due to us using the applicaiton on an ARM based processor?

[mikerbts]

Any work arounds would be greatly appreciated

[bdheeman]

Same problem here, on Raspberry Pi 3 Model B, (Linux raspberrypi 4.4.50-v7+ #970 SMP Mon Feb 20 19:18:29 GMT 2017 armv7l GNU/Linux) with bladeRF 40X, I also get the following error:

./kal -s GSM850 -v -D
debug: FPGA Master Clock Freq: 52000000
debug: decimation : 192
debug: RX Subdev Spec : B
debug: Antenna : RX2
debug: Gain : 0.450000
shmat: Invalid argument
terminate called after throwing an instance of 'std::runtime_error'
what(): circular_buffer: shmat
Aborted

[m-zbik]

hi, has anyone manage to solve this issue?

[elcdrue]

For Raspbian use this patch (like branch arm_memory in kalibrate-rtl)

diff --git a/configure.ac b/configure.ac
index 5f4f19a..003bbf4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,11 +32,7 @@ AC_SUBST(BLADERF_CFLAGS)
 
 # OSX doesn't support System V shared memory
 AC_CANONICAL_HOST
-case "$host_os" in
-	darwin*)
-		AC_DEFINE([D_HOST_OSX], [], [building for OSX])
-		;;
-esac
+AC_DEFINE([D_HOST_OSX], [], [building for OSX])
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile])
diff --git a/src/Makefile.am b/src/Makefile.am
index 98bc1ef..43fe52e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -21,4 +21,4 @@ kal_SOURCES = \
    version.h
 
 kal_CXXFLAGS = $(FFTW3_CFLAGS) $(USRP_CFLAGS)
-kal_LDADD = $(FFTW3_LIBS) $(USRP_LIBS)
+kal_LDADD = $(FFTW3_LIBS) $(USRP_LIBS) -lrt

[0julio0]

hi @elcdrue could you be more specific? i couldn`t solve this problem.
tks a lot

[decadenza]

Same issue here. I've been looking for a solution for 3 days now...
I tried to apply the elcdrue patch, and I got this error:

Error setting RX sampling rate
error: bladeRF_source::open

Any guess?

[x2q]

+1

[Twilight-Logic]

Just downloaded and compiled this today on my Raspberry Pi. I am getting the same output as the original poster. Is there a fix yet?

I added the following line to version.h and did a make clean and ran ./configure again:

kal_LDADD = $(FFTW3_LIBS) $(USRP_LIBS) -lrt

However this generates further errors:

In file included from kal.cc:63:0:
version.h:30:1: error: ‘kal_LDADD’ does not name a type
kal_LDADD = $(FFTW3_LIBS) $(USRP_LIBS) -lrt
^~~~~~~~~
kal.cc: In function ‘int main(int, char**)’:
kal.cc:198:5: error: ‘g_verbosity’ was not declared in this scope
g_verbosity++;
^~~~~~~~~~~
Makefile:483: recipe for target 'kal-kal.o' failed
make[2]: *** [kal-kal.o] Error 1
make[2]: Leaving directory '/home/pi/src/kalibrate-rtl/src'
Makefile:376: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/pi/src/kalibrate-rtl'
Makefile:317: recipe for target 'all' failed
make: *** [all] Error 2