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Re: [Discuss-gnuradio] I am getting a Segmentation fault (core dumped) e


From: Marcus Müller
Subject: Re: [Discuss-gnuradio] I am getting a Segmentation fault (core dumped) error when running companion
Date: Fri, 15 Nov 2013 19:17:43 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0

Hi Michael,

I don't think your trace is very useful; could you try running the companion within gdb and offering a backtrace?

gbd --args python $(which gnuradio-companion)
run
#wait for crash
bt

Put the complete backtrace in a pastebin or a github gist, if possible :)

Greetings,
Marcus
On 15.11.2013 18:34, address@hidden wrote:
Hello,

At one point I had gnuradio companion working just fine. But while trying to get the software to recognize my blade-RF device, I somehow came to a point where I was getting the Segmentation fault error when trying to open companion. I uninstalled and reinstalled gnuradio, but I am still getting the same errors. I stack traced companion and found where the core dump happens. I took the last 15 lines of the trace and pasted them below.

mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb0978000
read(15, "address@hidden"..., 4096) = 4096
fstat64(15, {st_mode=S_IFREG|0644, st_size=256842, ...}) = 0
read(15, "f\1\0d\1\0\206\0\0}\1\0|\1\0S(\2\0\0\0Nc\3\0\0\0\3\0\0\0\5"..., 249856) = 249856
read(15, "\0\0/home/nuand/sandbox/gnuradio/b"..., 4096) = 2890
read(15, "", 4096)                      = 0
close(15)                               = 0
munmap(0xb0978000, 4096)                = 0
stat64("/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig", 0xbff55b90) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig.i386-linux-gnu.so", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig.so", O_RDONLY|O_LARGEFILE) = 15
fstat64(15, {st_mode=S_IFREG|0644, st_size=1262989, ...}) = 0
fstat64(15, {st_mode=S_IFREG|0644, st_size=1262989, ...}) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xe596} ---
+++ killed by SIGSEGV (core dumped) +++
Segmentation fault (core dumped)

Anybody know whats going wrong and how to fix it?

Thanks,

Michael


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