[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303
--- Comment #8 from Maciej Bliziński maciej at opencsw dot org ---
Here's my attempt to get some information:
experimental10s 14:35:13 ~/src/opencsw-gar/v2/go $ gcc -v
Reading specs from /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.1.0/specs
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/csw/libexec/gcc/sparc-sun-solaris2.10/5.1.0/lto-wrapper
Target: sparc-sun-solaris2.10
Configured with:
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.1.0/configure
--prefix=/opt/csw --exec_prefix=/opt/csw --bindir=/opt/csw/bin
--sbindir=/opt/csw/sbin --libexs
Thread model: posix
gcc version 5.1.0 (GCC)
experimental10s 14:31:43 ~/src/opencsw-gar/v2/go $ export CFLAGS=-g
experimental10s 14:31:55 ~/src/opencsw-gar/v2/go $ gmake bin/package-gar-status
gccgo -o src/opencsw/diskformat/diskformat.o -g -c
src/opencsw/diskformat/diskformat.go
ginstall -m 755 src/opencsw/diskformat/diskformat.o opencsw/diskformat.o
gccgo -o src/opencsw/mantis/mantis.o -g -c src/opencsw/mantis/mantis.go
# ginstall
cp src/opencsw/mantis/mantis.o opencsw/mantis.o
gccgo -g -o bin/package-gar-status src/package-gar-status/package-gar-status.go
opencsw/diskformat.o opencsw/mantis.o
experimental10s 14:32:15 ~/src/opencsw-gar/v2/go $ # bin/package-gar-status
-output-file=foo.md
experimental10s 14:32:29 ~/src/opencsw-gar/v2/go $ gdb bin/package-gar-status
GNU gdb (GDB) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type show copying
and show warranty for details.
This GDB was configured as sparc-sun-solaris2.10.
Type show configuration for configuration details.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/.
Find the GDB manual and other documentation resources online at:
http://www.gnu.org/software/gdb/documentation/.
For help, type help.
Type apropos word to search for commands related to word...
Reading symbols from bin/package-gar-status...done.
(gdb) run -output-file=foo.md
Starting program: /home/maciej/src/opencsw-gar/v2/go/bin/package-gar-status
-output-file=foo.md
[Thread debugging using libthread_db enabled]
[New Thread 1 (LWP 1)]
[New LWP2]
[New LWP3]
2015/05/04 14:33:05 Program start
2015/05/04 14:33:05 Looking at catalog {unstable i386 SunOS5.10} only.
2015/05/04 14:33:05 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/i386/SunOS5.10/for-generation/as-dicts/
[New LWP4]
[New LWP5]
[New Thread 4 (LWP 4)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 4 (LWP 4)]
0xfe3c0d88 in memcpy () from
/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1
(gdb) where
#0 0xfe3c0d88 in memcpy () from
/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1
#1 0xfe9453d0 in runtime_netpoll (block=block@entry=1 '\001') at
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.1.0/libgo/runtime/netpoll_select.c:163
#2 0xfe94a794 in findrunnable () at
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.1.0/libgo/runtime/proc.c:1667
#3 schedule () at
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.1.0/libgo/runtime/proc.c:1765
#4 0xfe94aad8 in runtime_mstart (mp=0xde315c00) at
/home/dam/mgar/pkg/gcc5/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-5.1.0/libgo/runtime/proc.c:1000
#5 0xff1baec8 in _lwp_start () from /lib/libc.so.1
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303 --- Comment #7 from Maciej Bliziński maciej at opencsw dot org --- Checked again, the problem is still there in GCC-5.1.
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303 Maciej Bliziński maciej at opencsw dot org changed: What|Removed |Added Version|4.9.0 |4.9.2 --- Comment #6 from Maciej Bliziński maciej at opencsw dot org --- Just checked, the problem is still there in GCC 4.9.2.
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303 --- Comment #4 from Maciej Bliziński maciej at opencsw dot org --- Just checked on Linux 3.13.0 x86_64, gccgo 4.9.0, works fine. gccgo version: $ gccgo --version gccgo (Ubuntu 4.9-20140406-0ubuntu1) 4.9.0 20140405 (experimental) [trunk revision 209157] In the meantime, I keep working with gccgo 4.8.2, which also works fine.
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303 --- Comment #5 from Maciej Bliziński maciej at opencsw dot org --- How to reproduce: Requirements: Solaris 10 svn gmake ginstall gccgo 4.9.x (Everything available as binary packages at OpenCSW) svn checkout http://svn.code.sf.net/p/gar/code/csw/mgar/gar/v2/go gar-code cd gar-code mkdir bin gmake bin/promote-packages bin/promote-packages -dry-run -html-report-path=. -package-times-json-file=times.json With gccgo-4.8.2, this program completes within 80-90s on Intel or slightly over 3 minutes on sparc. When compiled with gccgo-4.9.0, it freezes up, stays frozen for some time, and eventually crashes.
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303 --- Comment #2 from Maciej Bliziński maciej at opencsw dot org --- I've just reproduced this with gcc-4.9.1 (Solaris 10 sparc).
[Bug go/61303] New: gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303
Bug ID: 61303
Summary: gccgo: segfault, regression since 4.8.2
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
Assignee: ian at airs dot com
Reporter: maciej at opencsw dot org
CC: cmang at google dot com
./bin/gen-catalog-index --help
Usage of ./bin/gen-catalog-index:
-arch=sparc: { sparc | i386 }
-catalog-release=unstable: e.g. unstable, bratislava, kiel, dublin
-os-release=SunOS5.10: e.g. SunOS5.10
-output=catalog: The name of the file to generate.
-pkgdb-url=http://buildfarm.opencsw.org/pkgdb/rest: Web address of the
pkgdb app.
./bin/gen-catalog-index -output foo
2014/05/24 13:50:23 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/sparc/SunOS5.10/for-generation/as-dicts/
2014/05/24 13:50:32 Retrieved {unstable sparc SunOS5.10} with 3704 packages
2014/05/24 13:50:32 Writing {unstable sparc SunOS5.10} to foo
2014/05/24 13:50:32 Catalog index written successfully
cp ./bin/gen-catalog-index{,.bak}
rm ./bin/gen-catalog-index
make bin/gen-catalog-index
gccgo -g -o bin/gen-catalog-index src/gen-catalog-index/gen-catalog-index.o
src/opencsw/diskformat/diskformat.o
rm foo
./bin/gen-catalog-index -output foo
2014/05/24 13:51:05 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/sparc/SunOS5.10/for-generation/as-dicts/
Segmentation Fault (core dumped)
dbx - core
Corefile specified executable:
/home/raos/opencsw/.buildsys/v2/go/bin/gen-catalog-index
For information about new features see `help changes'
To remove this message, put `dbxenv suppress_startup_message 7.6' in your
.dbxrc
Reading gen-catalog-index
dbx: warning: core object name gen-catalog-ind matches
object name gen-catalog-index within the limit of 14. assuming they match
core file header read successfully
Reading ld.so.1
Reading libgo.so.5.0.0
dbx: warning: unknown location expression code (0x9e)
Reading libm.so.2
Reading libgcc_s.so.1
Reading libc.so.1
Reading libpthread.so.1
Reading libsocket.so.1
Reading libnsl.so.1
Reading librt.so.1
Reading libaio.so.1
Reading libmd.so.1
Reading libc_psr.so.1
t@3 (l@3) terminated by signal SEGV (no mapping at the fault address)
0xfe730e98: _memcpy+0x04bc: st %o4, [%o0]
(dbx) where
current thread: t@3
=[1] _memcpy(0x0, 0xff0d1f6c, 0x61, 0x60100, 0x30, 0x0), at 0xfe730e98
[2] runtime_netpoll(0x1, 0x80, 0xce1e1e3b, 0x0, 0xff0d1ff0, 0x180), at
0xfeb8e004
[3] schedule(0x1, 0xfef32f6c, 0x0, 0x0, 0xff0f3d28, 0xff0f5800), at
0xfeb92e90
[4] runtime_mstart(0xde811800, 0xce1e2000, 0x0, 0xce310a38, 0x4,
0xce310a38), at 0xfeb93130
(dbx) threads
t@1 a l@1 ?() sleep on 0x3f3c0 in __lwp_park()
t@2 a l@2 ?() sleep on 0x3f3f8 in __lwp_park()
ot@3 a l@3 ?() signal SIGSEGV in _memcpy()
t@4 a l@4 ?() sleep on 0x3f810 in __lwp_park()
(dbx) quit
This is a regression since gcc-4.8.2. The same go code works when compiled with
gccgo-4.8.2 and fails when compiled with gccgo-4.9.0.
[Bug go/61303] gccgo: segfault, regression since 4.8.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61303
--- Comment #1 from Maciej Bliziński maciej at opencsw dot org ---
I did some more testing. Running it under truss makes the binary work:
truss -f -o /tmp/crashtest.truss bin/crashtest
2014/05/24 17:15:34 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/sparc/SunOS5.10/for-generation/as-dicts/
2014/05/24 17:15:44 Retrieved {unstable sparc SunOS5.10} with 3704 packages
2014/05/24 17:15:44 Writing {unstable sparc SunOS5.10} to catalog
2014/05/24 17:15:44 Catalog index written successfully
Running the same binary without truss makes it crash:
bin/crashtest
2014/05/24 17:16:03 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/sparc/SunOS5.10/for-generation/as-dicts/
[hangs and eventually segfaults]
Running the same binary under gdb makes it segfault immediately:
gdb bin/crashtest
GNU gdb (GDB) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type show copying
and show warranty for details.
This GDB was configured as sparc-sun-solaris2.10.
Type show configuration for configuration details.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/.
Find the GDB manual and other documentation resources online at:
http://www.gnu.org/software/gdb/documentation/.
For help, type help.
Type apropos word to search for commands related to word...
Reading symbols from bin/crashtest...done.
(gdb) run
Starting program: /home/maciej/src/opencsw-gar/v2/go/bin/crashtest
[Thread debugging using libthread_db enabled]
[New Thread 1 (LWP 1)]
[New LWP2]
[New LWP3]
2014/05/24 17:22:40 Making a request to
http://buildfarm.opencsw.org/pkgdb/rest/catalogs/unstable/sparc/SunOS5.10/for-generation/as-dicts/
[New Thread 3 (LWP 3)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 3 (LWP 3)]
0xfe730e98 in memcpy () from
/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1
(gdb) where
#0 0xfe730e98 in memcpy () from
/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1
#1 0xfeb8e00c in runtime_netpoll (block=block@entry=1 '\001')
at
/home/maciej/src/opencsw/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.0/libgo/runtime/netpoll_select.c:163
#2 0xfeb92e98 in findrunnable ()
at
/home/maciej/src/opencsw/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.0/libgo/runtime/proc.c:1653
#3 schedule () at
/home/maciej/src/opencsw/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.0/libgo/runtime/proc.c:1751
#4 0xfeb93138 in runtime_mstart (mp=0xde810800)
at
/home/maciej/src/opencsw/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.0/libgo/runtime/proc.c:1000
#5 0xff1faee8 in _lwp_start () from /lib/libc.so.1
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
[Bug ada/49248] Cross compile ada failed at finding command gnatmake.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49248 Maciej Bliziński maciej at opencsw dot org changed: What|Removed |Added CC||maciej at opencsw dot org --- Comment #1 from Maciej Bliziński maciej at opencsw dot org 2011-11-12 14:13:10 UTC --- I observed the same issue when trying to compile GCC with Ada for x86_64. Not sure whether it's a problem with the GCC, or something I did wrong.
