Hello, All,
I have gotten 32 bit XLINRAD [versions 2.17, 2.19, 2.21] to compile
fine and to run overnight with no problem on Ubuntu 64 bit system. For
as long as I have left it running and 'locked in' on a received signal,
it has performed flawlessly.
However, clicking on the waterfall or spectrum to select a new signal
will SOMETIMES [but not always] cause linrad to crash in one of 3 ways:
xlinrad window and audio lock up [can exit by clicking on 'X' in
upper right hand corner of xlinrad window], or Linrad error message
screen [" [1026]routine:close_audio_output file:lsetad.c call to ioctl
failed (SNDCTL_DSP_REESET)] appears, or Linrad screen disappears and
user is thrown back to terminal screen. Playing around with the mouse
on the screen in any other manner doesn't cause a problem.
As long as you are not selecting new signals, Linrad 'seems' to run
fine forever.
Xlinrad running on a 32 bit system does not have this problem.
I believe that these issues involve the 32 bit libraries that I brought
from another, 32 bit Ubuntu install for this purpose.
I have gotten 32 bit LINRAD FOR SVGALIB to compile fine and to run as
far as the startup screens to on Ubuntu 64 bit system. I have not
gotten it to run fully.
Because the description of HOWTO do all of this has gotten rather
lengthy, I have placed it on the web at:
http://www.nitehawk.com/w3sz/64bitlinrad.html
I have also placed on that webpage links to valgrind output files for
the following programs which I compiled as 32 bit versions and ran on
the Ubuntu 64 bit system
vgatest
xlinrad
linrad [for svgalib].
My hope is that others with far more computer expertise than I have can
review these items and suggest to the list [or to me privately if they
prefer] how to proceed to improve things so that the remaining problems
with 32 bit Linrad on 64 bit Linux are overcome. I do not NEED to get
this working at all, as I currently have fully functional Linrad,
xlinrad, and Linrad for Windows on at least 7 machines here with a
total of at least 20 different versions [32 bit, 64 bit, realtime,
non-realtime, Debian, Ubuntu, and even an old RedHat in various
permutations] of Linux and at least 3 versions of Windows. So I need
to run another 'flavor' of Linrad like I need a nail thru my coax ;)
But I would like to 'advance the art' for those who have a real need to
get Linrad running on a 64 bit OS by getting the final bugs out of this.
Thanks and have a great weekend, and
73,
W3SZ
Roger Rehr
http://www.nitehawk.com/w3sz
Roger Rehr
W3SZ
http://www.nitehawk.com/w3sz
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