Re: [Discuss-gnuradio] Segmentation fault using qt gui sink

[Volker Schroer]

Hi Jonathan,

I got no meaningful backtrace. That is all I got:

Program received signal SIGSEGV, Segmentation fault.
0x00000000000000c1 in ?? ()
(gdb) bt
#0  0x00000000000000c1 in ?? ()
#1  0x00007fc0ce119fcc in ?? ()
#2  0x0000000002849c10 in ?? ()
#3  0x000000000286b050 in ?? ()
#4  0x000000000286b068 in ?? ()
#5  0x00007fc0ce11a049 in ?? ()
#6  0x0000000002869240 in ?? ()
#7  0x00007fc0ce398630 in ?? ()
#8  0x00007fc0de618720 in ?? ()
#9  0x0000000000000000 in ?? ()

In my message log I see:

 WavSinkTest.py[5074]: segfault at 81 ip 0000000000000081 sp 
00007fffa0466758 error 14 in python2.7[400000+1000]

This happens behind
 tb.stop()
To verify this I introduced some print statements into the tb- block 
source and put a line
        raw_input('Press Enter to quit: ')
behind tb.stop()

Then I get:
+++gr_top_block stop
+++gr_top_block_impl stop
+++gr_sched_tpb stop
+++gr_sched_tpb stopped
+++gr_top_block_impl sched stopped
+++gr_top_block stopped
Press Enter to quit:
Speicherzugriffsfehler

Perhaps this is a gentoo related problem and it may arise as I'm forced 
to use boost 1.52. But I can't downgrade boost as this would require a 
downgrade of the glibc which is not supported on gentoo.

Commit id is

commit 7774331476979a530288eb8217d19f8f7af64ed1
Merge: 3421633 4a030cb
Author: Tom Rondeau <address@hidden>
Date:   Sat Mar 16 10:30:16 2013 -0400

Any ideas ?

Volker

Am 18.03.2013 18:31, schrieb Johnathan Corgan:
> On Mon, Mar 18, 2013 at 6:47 AM, Volker Schroer <address@hidden
> <mailto:address@hidden>> wrote:
>
>     Sorry, now with example
>
>
> I've run your example on the current master and not getting a segfault.
>
> If there is a way you can get a gdb backtrace and the exact commit ID
> used I'd appreciate it.
>
> Johnathan