[Gc] Absurd stack bottom value on ARM

Michael Starzinger michi at complang.tuwien.ac.at
Sat Mar 14 13:39:21 PST 2009


Hello!

As you might be aware, we are using the Boehm GC in CACAO [1] at the  
moment. Recently we received a bug report about a failing assertion on  
an ARM board (Openmoko Neo Freerunner) running the Openmoko firmware.  
Please take a look at our Bugzilla entry [2] for a detailed  
description of the problem.

Currently I don't have access to an Openmoko installation, so I'm  
merely forwarding the information I received. The bugging assertion  
[3] is still present in the recent 7.1 version of the Boehm GC, so I  
am assuming that it hasn't been addressed yet.

Is it OK to simply remove the bugging assertion for our purposes?
Does the "absurd stack bottom value" have any other side effects?

References:
[1] http://www.cacaovm.org/
[2] http://server.complang.tuwien.ac.at/cgi-bin/bugzilla/show_bug.cgi?id=121
[3] http://mips.complang.tuwien.ac.at/hg/cacao/file/f162d02fffb3/src/mm/boehm-gc/os_dep.c#l1080

-michi



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