Re: SIGTRAP in EPICS 7.0.3

[Michael Davidsaver via Core-talk <core-talk@aps.anl.gov>]

On 10/9/19 7:21 AM, Zimoch Dirk (PSI) via Core-talk wrote:
> On Wed, 2019-10-09 at 12:30 +0000, Zimoch Dirk (PSI) via Core-talk wrote:
>> Hi everyone,
>>
>> On one of my embedded Linux architectures I get a SIGTRAP when executing iocInit in softIocPVA.

Is this process attached to a debugger?  I've only encountered SIGTRAP in the mechanics of breakpoints.

>> This is the stack trace:
>> #0  0x0fdadd3c in typeinfo for epics::pvAccess::ChannelArray () from /usr/local/epics/base-7.0.3/lib/eldk42-
>>
> 
> Seems to be a bug in the optimizer of gcc 4.2.2. The problem disappears with -fno-inline-functions.

This may be a premature conclusion.  It's also possible that the code involved has a bug.
This code seems to work with gcc 4.3.2 (RTEMS 4.9.6).

Can you try running with valgrind to get some more insight?

Also, can you run the unittests and report any failures?

And thank you for testing the 7.0.3 release ;)