Re: [Discuss-gnuradio] Trouble with gnuradio and AMD32

[Josh Blum]

On 06/07/2012 01:14 PM, Josh Blum wrote:
> 
> 
> On 06/07/2012 01:09 PM, Tom Rondeau wrote:
>> On Fri, Jun 1, 2012 at 3:12 PM, Igor Volodin <address@hidden> wrote:
>>> Hello, all
>>>
>>> My configuration:
>>> Linux Xubuntu 12.04
>>> AMD Athlon XP 2400
>>> Linux ghost32 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:51:22 UTC 2012
>>> i686 athlon i386 GNU/Linux
>>>
>>>
>>>
>>> I am compiled latest version of gnuradio, and tried to run simple grc file:
>>> http://superkuh.com/simplest.grc , and got following error:
>>>
>>>
>>> (python:3350): GLib-GObject-CRITICAL **: g_param_spec_double: assertion
>>> `default_value >= minimum && default_value <= maximum' failed
>>>
>>> (python:3350): GLib-GObject-CRITICAL **: g_object_class_install_property:
>>> assertion `G_IS_PARAM_SPEC (pspec)' failed
>>>
>>> (python:3350): GLib-GObject-WARNING **: g_object_notify: object class
>>> `GdkScreenX11' has no property named `resolution'
>>> Using Volk machine: generic
>>
>> Igor,
>>
>> I've updated the code in git that should fix this problem you're
>> having. The 'generic' machine didn't have an alignment at all, so it's
>> uncertain what was being returned. I've set it up to return 1 now, so
>> it should work.
>>
> 
> No, the generic alignment defaulted to 1 already.
> 
> The bug is that the multiply block is passing 0 into the set alignment
> multiple
> 
> 1/sizeof(complex) is 0 -> due to integer math
> 

Heres how I handled it in gr extras. Not using the alignment call, but
same basic idea. A std::max in the scheduler code would fix this issue
everywhere though

https://github.com/guruofquality/grextras/blob/master/lib/multiply.cc#L101

-josh

>> Tom
>>
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