Greg Troxel schrieb:
You left out a lot, like what operating system you are using. But
I'll guess that gr_vmcircbuf_createfilemapping is trying to mmap a
file in tmp to get shared memory, and it needs to be writable.
Perhaps using mfs or tmpfs, or some other kind of memory filesystem
for /tmp is in order.
I'm using Linux... and whatever 'gr-vmcircbuf_createfilemapping' is, is
buried deep in the gnuradio
sources.
In this case it looks like there's a presumption about the 'user' and
having a directory associated with
that user, where 'preferences', etc. can be read/written, rather than
using say, /tmp or similar 'well known'
writeable location.
I'll have to do a find on the gnuradio sources to find the specific
reference, and then figure out
'what to do'...
John Clark.
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