[VM][ENH] LowSpaceAndInterruptHandler-dtl ([closed] on Mantis ID 1041)

Ken Causey ken at kencausey.com
Mon Apr 4 16:31:27 UTC 2005

Thank you for your report.  I have transferred your report to Squeak's
Mantis Database and you can followup on the issue if desired by going to
http://bugs.impara.de/view.php?id=1041 .

In the future please report new issues on Squeak's Mantis Database at
http://bugs.impara.de/ .


On Sun, 2005-04-03 at 17:15 -0400, David T. Lewis wrote:
> These change sets are updates to the VM and to the low space watcher that
> fix low space interrupt handling and user interrupt handling in Morphic.
> Under certain conditions the low space watcher was unable to determine the
> correct process to suspend following a low space signal. These changes permit
> the VM to remember the identity of the process that caused the low space
> condition, and to report it to the image through a primitive.
> The low space watcher changes are backward compatible for use with VMs
> that do not yet have the new primitive (i.e. broken the same way as was
> the case in Squeak 3.7).
> Caveats:
> - This is done with VMMaker 3-8b2, hence is not updated for 64 bit VM.
> - I added a numbered primitive, which is probably a bad thing (but I'm not
>   sure where best to put it, possibly MiscPrimitivePlugin?).
> - There may be a simpler way to accomplish this, but at least this is a
>   working implementation.
> - I have not tested the interpreter simulator, still need to make sure I did
>   not break it.
> Cross posted to vm-dev and squeak-dev. Follow-ups should go to vm-dev
> (unless someone can think of a way to handle this properly without
> touching the VM).
> Dave
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