[Discuss-gnuradio] GNURadio segmentation fault

[John Shields]

Dear All,
             I have been running GNURadio fairly constantly for a 
couple of weeks now using simple_ra although, I don't believe it is a 
problem with that application as HTOP doesn't indicate memory issues etc.

             I run GNURadio version 3.7.9.1 on an Intel® Core™ i7-2600 
CPU @ 3.40GHz × 8.

             I have been running Ubuntu 14.04 LTS for years now but on 
encountering the issue recently with continuous GNURadio use, I upgraded 
to 15.10 but the problem still occurs.

             Here is what they syslog(s) say:

             previous (for years!) 14.04LTS

    May  7 15:01:34 i7Ubuntu kernel: [59309.794629] python2[3772]: 
segfault at 0 ip 00007f8e53be91c0 sp 00007ffe66518cc8 error 6 in 
libc-2.19.so[7f8e53b51000+1bb000]

    May 11 02:06:54 i7Ubuntu kernel: [97164.418968] python2[2735]: 
segfault at 0 ip 00007fbc2dce61c0 sp 00007ffdd22fa0a8 error 6 in 
libc-2.19.so[7fbc2dc4e000+1bb000]

upgraded to 15.10

    May 21 22:22:12 i7Ubuntu kernel: [643331.441347] python2[24419]: 
segfault at 0 ip 00007faee89160e0 sp 00007ffc3857e748 error 6 in 
libc-2.21.so[7faee8876000+1c0000]

    May 22 05:36:28 i7Ubuntu kernel: [21018.530748] python2[2408]: 
segfault at 0 ip 00007ff267bcb882 sp 00007ffdfe2d0b90 error 6 in 
i965_dri.so[7ff267814000+5b2000]

             I get no other symptoms i.e. no D's or anything bad 
reported by UHD.

             I also don't get problems with any other applications to 
indicate some memory issue though I wouldn't expect the regular apps to 
use as much memory - mind you when running simple_ra uses less than 10% 
of the memory.

             Any ideas on how I can narrow the cause down?

                   Kind Regards,

                           John