Bug#1016750: Heap exhaustion problem with SBCL 2.2.6 on armel, armhf

[Sean Whitton <spwhitton@spwhitton.name>]

Hello,

When I updated SBCL in Debian from 2.2.3 to 2.2.6, our ci infrastructure
detected that the test suite for the cl-ironclad package consistently
runs out of memory on armhf and armel.  This didn't happen before.

https://ci.debian.net/packages/c/cl-ironclad/testing/armhf/
https://ci.debian.net/packages/c/cl-ironclad/testing/armel/

Based on your understanding of the changes between SBCL 2.2.3 and 2.2.6,
does it seem likely that this is an SBCL bug, or rather that changes in
SBCL have uncovered a bug or limitation in the ironclad test suite,
e.g. that it tries to use more memory than a 32-bit address space can
accommodate?

Also asked about here: <https://github.com/sharplispers/ironclad/issues/53>.

Would be grateful for any input.  Thanks.

-- 
Sean Whitton