Integrate change #9233 from maintperl into mainline.

some refcounts were incorrect in perl_clone()

p4raw-link: @9233 on //depot/maint-5.6/perl: dca1bc40364bec892edf18517ed5e3c914edecc6

p4raw-id: //depot/perl@9240
p4raw-integrated: from //depot/maint-5.6/perl@9233 'merge in' sv.c
	(@9197..)

diff --git a/sv.c b/sv.c
index d08c378..4b64e13 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -158,7 +158,7 @@ S_visit(pTHX_ SVFUNC_t f)
     for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
        svend = &sva[SvREFCNT(sva)];
        for (sv = sva + 1; sv < svend; ++sv) {
-           if (SvTYPE(sv) != SVTYPEMASK) {
+           if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) {
                (FCALL)(aTHXo_ sv);
                ++visited;
            }
@@ -8202,7 +8202,7 @@ dup_pvcv:
        CvROOT(dstr)    = OpREFCNT_inc(CvROOT(sstr));
        CvXSUB(dstr)    = CvXSUB(sstr);
        CvXSUBANY(dstr) = CvXSUBANY(sstr);
-       CvGV(dstr)      = gv_dup_inc(CvGV(sstr));
+       CvGV(dstr)      = gv_dup(CvGV(sstr));
        CvDEPTH(dstr)   = CvDEPTH(sstr);
        if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) {
            /* XXX padlists are real, but pretend to be not */
@@ -8270,7 +8270,7 @@ Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max)
                ncx->blk_sub.argarray   = (cx->blk_sub.hasargs
                                           ? av_dup_inc(cx->blk_sub.argarray)
                                           : Nullav);
-               ncx->blk_sub.savearray  = av_dup(cx->blk_sub.savearray);
+               ncx->blk_sub.savearray  = av_dup_inc(cx->blk_sub.savearray);
                ncx->blk_sub.olddepth   = cx->blk_sub.olddepth;
                ncx->blk_sub.hasargs    = cx->blk_sub.hasargs;
                ncx->blk_sub.lval       = cx->blk_sub.lval;
@@ -8857,7 +8857,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags,
     PL_defgv           = gv_dup(proto_perl->Idefgv);
     PL_argvgv          = gv_dup(proto_perl->Iargvgv);
     PL_argvoutgv       = gv_dup(proto_perl->Iargvoutgv);
-    PL_argvout_stack   = av_dup(proto_perl->Iargvout_stack);
+    PL_argvout_stack   = av_dup_inc(proto_perl->Iargvout_stack);
 
     /* shortcuts to regexp stuff */
     PL_replgv          = gv_dup(proto_perl->Ireplgv);