digitalmars.D.bugs - [Issue 9614] New: Uninitialized holes in function stack frames confuses GC
- d-bugmail puremagic.com (34/34) Feb 27 2013 http://d.puremagic.com/issues/...
http://d.puremagic.com/issues/show_bug.cgi?id=9614 Summary: Uninitialized holes in function stack frames confuses GC Product: D Version: D2 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P2 Component: DMD AssignedTo: nobody puremagic.com ReportedBy: verylonglogin.reg gmail.com --- Comment #0 from Denis Shelomovskij <verylonglogin.reg gmail.com> 2013-02-28 09:39:42 MSK --- Because of uninitialized holes in function stack frames for padding and temporaries lots of incorrect roots are created. Unless we have a precise GC we need to zero-fill such holes. And even with precise GC holes for temporaries which can point to GC memory also have to be zero-filled. Example: --- ... // `f` has some stack pointers to GC memory f(); ... // some stack pointers from `f` will be in holes // of `collect` and subsequent functions GC.collect(); ... --- A quick library workaround for now can be at least clear enough stack memory on `GC.collect` call to allow it collect in cases like in example above. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Feb 27 2013