[Bug bootstrap/12804] New: zone allocator is broken

[Bug bootstrap/12804] New: zone allocator is broken

[aj at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804

           Summary: zone allocator is broken
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: dberlin at dberlin dot org
        ReportedBy: aj at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu

See also the discussion starting at:
http://gcc.gnu.org/ml/gcc-patches/2003-10/msg02401.html

I tried to bootstrap on x86_64-linux-gnu using --with-gc=zone and
full checking (including GCAC) and get this ICE:

./xgcc -B./ -B/opt/gcc/3.4-devel/x86_64-suse-linux-gnu/bin/ -isystem
/opt/gcc/3.4-devel/x86_64-suse-linux-gnu/include -isystem
/opt/gcc/3.4-devel/x86_64-suse-linux-gnu/sys-include
-L/abuild/aj/builds/gcc/misc/gcc/../ld -O2 -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -I. -I.
-I/usr/src/aj/cvs/gcc/gcc -I/usr/src/aj/cvs/gcc/gcc/.
-I/usr/src/aj/cvs/gcc/gcc/../include   -g0 -finhibit-size-directive
-fno-inline-functions -fno-exceptions -fno-zero-initialized-in-bss
-fno-unit-at-a-time -fno-omit-frame-pointer -fno-asynchronous-unwind-tables \
   -c /usr/src/aj/cvs/gcc/gcc/crtstuff.c -DCRT_END \
  -o crtend.o
In file included from /usr/src/aj/cvs/gcc/gcc/tsystem.h:89,
                 from /usr/src/aj/cvs/gcc/gcc/crtstuff.c:62:
/usr/include/stdlib.h:394: internal compiler error: in sweep_pages, at
ggc-zone.c:1333
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make: *** [crtend.o] Error 1

Running gdb gives some more insight:

(gdb) r -fpreprocessed crtstuff.i -quiet -dumpbase crtstuff.c -mtune=k8
-auxbase-strip crtend.o -g0 -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -version -finhibit-size-directive -fno-inline-functions
-fno-exceptions -fno-zero-initialized-in-bss -fno-unit-at-a-time
-fno-omit-frame-pointer -fno-asynchronous-unwind-tables -o crtstuff.s
Starting program: /abuild/aj/builds/gcc/misc/gcc/cc1 -fpreprocessed crtstuff.i
-quiet -dumpbase crtstuff.c -mtune=k8 -auxbase-strip crtend.o -g0 -O2 -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -version
-finhibit-size-directive -fno-inline-functions -fno-exceptions
-fno-zero-initialized-in-bss -fno-unit-at-a-time -fno-omit-frame-pointer
-fno-asynchronous-unwind-tables -o crtstuff.s
Breakpoint 2 at 0x2a9569fc30
Breakpoint 3 at 0x2a9569ed00
GNU C version 3.4 20031027 (experimental) (x86_64-suse-linux-gnu)
        compiled by GNU C version 3.3.1 (SuSE Linux).
GGC heuristics: --param ggc-min-expand=0 --param ggc-min-heapsize=0

Breakpoint 1, fancy_abort (file=0xf98440 "/usr/src/aj/cvs/gcc/gcc/ggc-zone.c",
line=1333, function=0xf984c1 "sweep_pages")
    at /usr/src/aj/cvs/gcc/gcc/diagnostic.c:584
584       internal_error ("in %s, at %s:%d", function, trim_filename (file), line);
(gdb) bt
#0  fancy_abort (file=0xf98440 "/usr/src/aj/cvs/gcc/gcc/ggc-zone.c", line=1333,
function=0xf984c1 "sweep_pages")
    at /usr/src/aj/cvs/gcc/gcc/diagnostic.c:584
#1  0x0000000000c8bfd8 in sweep_pages (zone=0x11895a0) at
/usr/src/aj/cvs/gcc/gcc/ggc-zone.c:1333
#2  0x0000000000c8c2a0 in ggc_collect_1 (zone=0x11895a0, need_marking=true) at
/usr/src/aj/cvs/gcc/gcc/ggc-zone.c:1401
#3  0x0000000000c8c3f9 in ggc_collect () at /usr/src/aj/cvs/gcc/gcc/ggc-zone.c:1472
#4  0x00000000004029f6 in yyparse () at c-parse.y:295
#5  0x000000000040d94c in c_parse_file () at c-parse.y:2834
#6  0x000000000047f827 in c_common_parse_file (set_yydebug=0) at
/usr/src/aj/cvs/gcc/gcc/c-opts.c:1226
#7  0x0000000000c3599a in compile_file () at /usr/src/aj/cvs/gcc/gcc/toplev.c:1836
#8  0x0000000000c3abb7 in do_compile () at /usr/src/aj/cvs/gcc/gcc/toplev.c:4689
#9  0x0000000000c3ac4f in toplev_main (argc=26, argv=0x7fbfffeec8) at
/usr/src/aj/cvs/gcc/gcc/toplev.c:4729
#10 0x00000000004a76cb in main (argc=26, argv=0x7fbfffeec8) at
/usr/src/aj/cvs/gcc/gcc/main.c:35
(gdb) up
#1  0x0000000000c8bfd8 in sweep_pages (zone=0x11895a0) at
/usr/src/aj/cvs/gcc/gcc/ggc-zone.c:1333
1333                    abort ();
(gdb) p p
$1 = (page_entry *) 0x123c130
(gdb) p *p
$2 = {next = 0x123c0f0, bytes = 4096, survived = 2, page = 0x2a95a2e000 "",
bytes_free = 6990, context_depth = 0, large_p = false, 
  zone = 0x11895a0}

To reproduce on my x86-64 system:
- start with an empty directory
- configure with:
$ /usr/src/aj/cvs/gcc/configure  --prefix=/opt/gcc/3.4-devel --disable-nls
--enable-threads=posix --enable-clocale=gnu --enable-__cxa_atexit
--enable-shared --enable-languages=c,c++,ada,treelang,java,f77,objc
--enable-checking=misc,tree,rtl,gc,rtlflag,gcac --with-gc=zone
--with-system-zlib x86_64-suse-linux-gnu
- make bootstrap

[Bug bootstrap/12804] zone allocator is broken

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-30 05:44:24
               date|                            |

[Bug bootstrap/12804] zone allocator is broken

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor
           Keywords|                            |ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804

[Bug bootstrap/12804] zone allocator is broken

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-04 06:05 -------
*** Bug 14732 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steven at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804

[Bug bootstrap/12804] zone allocator is broken on 64bit

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-07-26 15:12 -------
Subject: Bug 12804

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	drow@gcc.gnu.org	2004-07-26 15:11:54

Modified files:
	gcc            : ChangeLog ggc-zone.c 

Log message:
	PR bootstrap/12804
	* ggc-zone.c (struct alloc_chunk): Remove attribute packed.
	(MAX_FREE_BIN_SIZE): Increase on 64-bit targets.
	(ggc_free): Remove incorrect freeing.
	(sweep_pages): Advance PP for large pages.  Fix indentation.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.4696&r2=2.4697
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ggc-zone.c.diff?cvsroot=gcc&r1=2.16&r2=2.17



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804

[Bug bootstrap/12804] zone allocator is broken on 64bit

[drow at gcc dot gnu dot org]

------- Additional Comments From drow at gcc dot gnu dot org  2004-07-26 15:20 -------
Should be fixed now.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804

[Bug bootstrap/12804] zone allocator is broken on 64bit

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12804