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[Bug c/43600] Segmentation fault for large C file (24MB)
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 31 Mar 2010 12:23:51 -0000
- Subject: [Bug c/43600] Segmentation fault for large C file (24MB)
- References: <bug-43600-18986@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-03-31 12:23 -------
needs -DCLANG to build. cgraph verification takes ages, so make sure to
turn off checking. The issue is:
Program received signal SIGSEGV, Segmentation fault.
0x00000000007b9f6e in cgraph_output_in_order ()
at /space/rguenther/src/svn/gcc-4_4-branch/gcc/cgraphunit.c:1148
1148 memset (nodes, 0, size);
(gdb) p size
$1 = 13406704
(gdb) l
1143 struct cgraph_asm_node *pa;
1144
1145 max = cgraph_order;
1146 size = max * sizeof (struct cgraph_order_sort);
1147 nodes = (struct cgraph_order_sort *) alloca (size);
1148 memset (nodes, 0, size);
1149
1150 varpool_analyze_pending_decls ();
1151
1152 for (pf = cgraph_nodes; pf; pf = pf->next)
well. We shouldn't try to allocate so much memory on stack.
Mine.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Known to fail| |4.4.2 4.4.3 4.4.4
Last reconfirmed|0000-00-00 00:00:00 |2010-03-31 12:23:51
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43600