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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -1,3 +1,34 @@ +2015-05-01 Kaz Kylheku <kaz@kylheku.com> + + Fix corruption triggered by extended gc disabling. + + The issue is that when gc is disabled, the gc function + does nothing. But various code depends on calls to gc() + doing something, like making space available in various + static arrays. + + When gc is disabled for long periods, there are issues, + like array overruns. + + * gc.c (gc): Must no longer be called at all if gc_enabled is false, + and asserts that it is true. Callers must check the gc_enabled + flag and implement appropriate cases. + (make_obj): Only call gc when gc_enabled is true. + If there is no space in the freshobj array after trying gc, + or gc couldn't be tried because it is disabled, then + schedule a full gc. + (gc_set): If the checkobj array is full, only call gc if gc + is enabled, otherwise schedule a full_gc. + (gc_mutated): Do not assume that the mutobj array has room + for another object; only set the object's generation to -1 + and put it into the array if there is room. Similarly to + gc_set, do a gc if there is no room, but if gc is not enabled, then + schedule a full gc. + (gc_wrap): Only call gc if gc_enabled is true, and return t in + that case rathe than nil. + + * txr.1: Document return value of sys:gc function. + 2015-04-30 Kaz Kylheku <kaz@kylheku.com> Fix source location for dangling unquotes and splices. |