Experimental Physics and
Industrial Control System

"J. Lewis Muir" <[email protected]> · Wed, 08 May 2013 10:15:06 -0500

On 5/8/13 4:37 AM, Dirk Zimoch wrote:
> Hello,
> 
> I have a problem using epicsTimerQueueActive.
> 
> When I create a time queue with epicsTimerQueueActive::allocate(true)
> then release it with epicsTimerQueueActive::release() and after that
> call epicsTimerQueueActive::allocate(true) again, I get a segmentation
> fault due to access to address 0.
> 
> I see no crash if I do not call release().
> 
> Interestingly, I see this effect only on my armv5teb (aka xscale_be)
> embedded Linux system, but not on x86 or on p2020 ppc (big endian, too).
> 
> All accesses are in the same thread (_main_) during device initialization.
> 
> This happens when I use StreamDevice with at least two records connected
> to a non-existing asynOctet port.
> 
> Any ideas?

Hi, Dirk.

What version of EPICS Base is this?

What compiler was used to build for armv5teb?

Does the problem also occur when built with all compiler optimizations
disabled (i.e. -O0)?

Lewis

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System