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[Bug-mit-scheme] [bug #27932] liarc's interrupt checks include only heap
From: |
Taylor R. Campbell |
Subject: |
[Bug-mit-scheme] [bug #27932] liarc's interrupt checks include only heap checks, not stack checks |
Date: |
Wed, 04 Nov 2009 03:54:36 +0000 |
User-agent: |
Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US) AppleWebKit/525.18 (KHTML, like Gecko, Safari/525.20) OmniWeb/v622.6.1.0.111015 |
URL:
<http://savannah.gnu.org/bugs/?27932>
Summary: liarc's interrupt checks include only heap checks,
not stack checks
Project: MIT/GNU Scheme
Submitted by: riastradh
Submitted on: Wed 04 Nov 2009 03:54:35 GMT
Category: microcode
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect behavior
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Keywords:
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Details:
This causes runaway recursions to make Scheme explode, rather than reporting
stack overflows. The quick fix is to add a stack check to INTERRUPT_CHECK in
microcode/liarc.h; the not so quick fix is to use compiler/back/checks.scm in
the C back end and do interrupt, heap, and stack checks more precisely where
they are needed like in the i386 and x86-64 back ends.
_______________________________________________________
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