[Mono-dev] SEGV in runtime related to GC

Paolo Molaro lupus at ximian.com
Mon Feb 13 08:41:05 EST 2006

On 02/14/06 Thong Nguyen wrote:
> I've been getting some memory corruption running an application after the GC
> runs.  I've tracked it down to the allocation of primitive arrays (in
> metadata/object.c) using GC_ALLOC_ATOMIC (or the mono equivalent).  Now,
> theoretically it should be fine, but changing it to a normal GC_ALLOC seems
> to fix (or maybe hide) the issue.

It is very likely only hiding the issue.

> Do mono objects contain links to any GC allocated memory?  A primitive array
> might not contain any managed references but the object header *may* contain
> some pointers.  I know at one point mono objects used to heap allocate
> object monitors but that doesn't appear to be the case anymore so that
> doesn't appear to be the issue...

Right, the object header doesn't contain references to objects.

> Any ideas?

A test case that replicates the issue would be the best way to allow us to
debug and see where the real problem is.


lupus at debian.org                                     debian/rules
lupus at ximian.com                             Monkeys do it better

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