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From: | John Clark |
Subject: | Re: [Discuss-gnuradio] problem with gri_fftw |
Date: | Wed, 28 Feb 2007 11:56:39 -0800 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT; rv:1.8.1.2pre) Gecko/20070111 SeaMonkey/1.1 |
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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