Interesting, I cannot reproduce this on Debian testing with gcc 6.1.1-8.
Maybe it has been fixed upstream?
Moritz
On Mon, Jul 11, 2016 at 1:10 PM Erich Steinböck <erich.steinbo...@gmail.com>
wrote:
> To check whether a failure so early within the function might be related
> to some illegal args coming down from MemoryObject::newSegment, I compiled
> with
> CXXFLAGS="-DMEMPROFILE" cmake -DBUILD_DEB=1 -DCMAKE_BUILD_TYPE=RELEASE
> ~/oorexxsvn/main/trunk
> to enable the #ifdef MEMPROFILE sections we have
>
> With that, running unoptimized rexximage without exception will print
>
> Allocating a new segment of 524256 bytes
> Allocating boundary a new segment of 1048576 bytes
> Allocating a new segment of 1048576 bytes
> Allocating boundary a new segment of 2097152 bytes
> Allocating a new segment of 33554400 bytes
> Allocating boundary a new segment of 33554432 bytes
> Allocating large boundary new segment of 4194304 bytes for request of
> 4194272
> Object stats for this image save are
> ObjectTypeNum Total Objects TotalBytes
> ============= ============== ==========
> 0 0 0
> 1 1 144
> 2 36 5184
> .. and a long list until..
> 184 0 0
> 185 0 0
>
> running optimized rexximage will fail like this:
> Allocating a new segment of 524256 bytes
> Allocating boundary a new segment of 1048576 bytes
> Segmentation fault (core dumped)
>
> So the failure seems to occur, when this code path is run for the first
> time:
>
> // try to allocate a new segment
> MemorySegment *segment = currentPool->newSegment(requestedBytes);
>
>
>
>
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