RDT_assertion failed: 0, file ../src/rde/lockset.c, line 493

Question

The following assertion occurs with the Feb 2007 thread analyzer
(Sun Solaris 10 11/06 SPARC with all the patches required by
Sun Studio C++ Feb 2007)
% collect -r all tntnet -c tntnet.conf
WARNING: Target `tntnet' is not instrumented for datarace detection;
reported datarace data may be misleading
Creating experiment database tha.6.er ...
2007-04-26 13:33:16.09216 [19660.1] INFO tntnet.tntnet - create 5 worker threads
RDT_assertion failed: 0, file ../src/rde/lockset.c, line 493
% CC -V
CC: Sun C++ 5.9 SunOS_sparc Build40_1 2007/02/08
For the "WARNING: Target `tntnet' is not instrumented for datarace detection",
I look through the large build output for cxxtools, tntnet, and the myfirstproject.so
shared library and as far as I can see, every .o, .so in cxxtools, tntnet, and
myfirstproject.so is compiled and linked with -mt -xinstrument=datarace.
But no need to take my word for it, the testcase is:
1. Need to fix SC12_02_07/SUNWspro/prod/include/CC/Cstd/stdcomp.h
(I will explain why in the Sun Studio C++ forum):
/% diff -wc /h/goanna/0/SC12_02_07/SUNWspro/prod/include/CC/Cstd/orig/stdcomp.h /h/goanna/0/SC12_02_07/SUNWspro/prod/include/CC/Cstd/stdcomp.h
*** /h/goanna/0/SC12_02_07/SUNWspro/prod/include/CC/Cstd/orig/stdcomp.h Thu Feb 8 23:18:51 2007
--- /h/goanna/0/SC12_02_07/SUNWspro/prod/include/CC/Cstd/stdcomp.h Thu Apr 19 14:57:28 2007
*** 1304,1311 ****
/* #define RWSTDNO_BAD_CAST 1 */
/* #define RWSTD_NO_BAD_CAST 1 */
! #define RWSTDNO_MEMBER_TEMPLATES 1
! #define RWSTD_NO_MEMBER_TEMPLATES 1
#define RWSTDNO_FRIEND_TEMPLATES 1
#define RWSTD_NO_FRIEND_TEMPLATES 1
--- 1304,1311 ----
/* #define RWSTDNO_BAD_CAST 1 */
/* #define RWSTD_NO_BAD_CAST 1 */
! /* #define RWSTDNO_MEMBER_TEMPLATES 1 */
! /* #define RWSTD_NO_MEMBER_TEMPLATES 1 */
#define RWSTDNO_FRIEND_TEMPLATES 1
#define RWSTD_NO_FRIEND_TEMPLATES 1
*** 1406,1415 ****
#define RWSTDNO_INIT_CONST_TEMPLATE_REF_ARG 1
#define RWSTD_NO_INIT_CONST_TEMPLATE_REF_ARG 1
! #define RWSTDNO_CLASS_PARTIAL_SPEC 1
! #define RWSTD_NO_CLASS_PARTIAL_SPEC 1
! #define RWSTDNO_FUNC_PARTIAL_SPEC 1
! #define RWSTD_NO_FUNC_PARTIAL_SPEC 1
/* #define RWSTDNO_OVERLOAD_OF_TEMPLATE_FUNCTION 1 */
/* #define RWSTD_NO_OVERLOAD_OF_TEMPLATE_FUNCTION 1 */
--- 1406,1415 ----
#define RWSTDNO_INIT_CONST_TEMPLATE_REF_ARG 1
#define RWSTD_NO_INIT_CONST_TEMPLATE_REF_ARG 1
! /* #define RWSTDNO_CLASS_PARTIAL_SPEC 1 */
! /* #define RWSTD_NO_CLASS_PARTIAL_SPEC 1 */
! /* #define RWSTDNO_FUNC_PARTIAL_SPEC 1 */
! /* #define RWSTD_NO_FUNC_PARTIAL_SPEC 1 */
/* #define RWSTDNO_OVERLOAD_OF_TEMPLATE_FUNCTION 1 */
/* #define RWSTD_NO_OVERLOAD_OF_TEMPLATE_FUNCTION 1 */
2. Download and install the latest autotools (automake, autoconf, libtool, gettext).
3. download and unpack cxxtools 1.4.3.5 and tntnet 1.5.3.4 from:
http://www.tntnet.org/download.hms
4. grep pthread **/Makefile.am, remove -lpthread and -pthread.
5. Make the following changes to Makefile.am files:
% grep "Wc," **/Makefile.am
cxxtools-1.4.3.5/Makefile.am:AM_CXXFLAGS=-Wc,-xinstrument=datarace
cxxtools-1.4.3.5/src/Makefile.am:libcxxtools_la_CXXFLAGS = -Wc,-xinstrument=datarace
tntnet-1.5.3.4/framework/cgi/Makefile.am:libtntnet_cgi_la_CXXFLAGS = -Wc,-xinstrument=datarace
tntnet-1.5.3.4/framework/common/Makefile.am:libtntnet_la_CXXFLAGS = -Wc,-xinstrument=datarace
tntnet-1.5.3.4/framework/defcomp/Makefile.am:tntnet_la_CXXFLAGS = -Wc,-xinstrument=datarace
tntnet-1.5.3.4/sdk/tools/common/Makefile.am:libtntnet_sdk_la_CXXFLAGS = -Wc,-xinstrument=datarace
This is because libtools removes all compiler options it does not know
about unless they are prefixed with -Wc.
6. Set env vars:
% env | egrep "(CC|FLAGS)"
CXXFLAGS=-g -mt -xinstrument=datarace
CXX=CC
CC=cc
CXXCPP=CC -E
CPPFLAGS=-I/usr/sfw/include -I/where_you_want_it/tntnet/cxxtools-1.4.3.5/include
LDFLAGS=-g -mt -xinstrument=datarace -L/usr/sfw/lib
7. In cxxtools-1.4.3.5:
autoreconf install force
./configure --prefix=/where_you_want_it/tntnet
make
8. As root:
make install
9. Set PATH to include /where_you_want_it/tntnet/bin
10. Install openssl (its on SunFreeware.com)
11. In tntnet-1.5.3.4:
autoreconf install force
./configure prefix=/where_you_want_it/tntnet with-ssl=openssl
make
12. As root:
make install
13. Follow the instructions to build and run the first example in:
http://www.tntnet.org/download/tntnet-1.5.3/doc/quick-start-guide.pdf
Of course you need to tweak the Makefile:
% diff -wc myfirstproject/orig/Makefile myfirstproject/Makefile
*** myfirstproject/orig/Makefile Sat Apr 7 13:24:41 2007
--- myfirstproject/Makefile Thu Apr 26 22:34:11 2007
*** 3,10 ****
SUFFIXES=.ecpp .gif .jpg .css .js
ECPPC=ecppc
! CXXFLAGS+=-I/where_you_want_it/tntnet/include -fPIC -O2
! LDFLAGS+=-shared -L/where_you_want_it/tntnet/lib -ltntnet
%.cpp: %.ecpp
$(ECPPC) $(ECPPFLAGS) $(ECPPFLAGS_CPP) $<
--- 3,10 ----
SUFFIXES=.ecpp .gif .jpg .css .js
ECPPC=ecppc
! CXXFLAGS+=-I/where_you_want_it/tntnet/include -KPIC -O2 -mt -xinstrument=datarace
! LDFLAGS+=-G -mt -L/where_you_want_it/tntnet/lib -ltntnet
%.cpp: %.ecpp
$(ECPPC) $(ECPPFLAGS) $(ECPPFLAGS_CPP) $<
Thanks, Mark

Answer 1

Hello Xi,
The error:
ld.so.1: ecppc: fatal: thread: open failed: No such file or directory
ld.so.1: ecppc: fatal: thread: audit initialization failure: disabled
occurs because the gcc -pthread option is not recognized by Sun CC,
so it passes it to the linker, which interprets it as specifying thread
as an audit library (with the -p ld option). Which can be verified by
running dump -Lv on the executable, and on the shared libraries
that were built that the executable depends on.
The -lpthread option is probably harmless, but not necessary as
it should instead use the -mt option.
The changes to the Makefile.am files take effect after the commands
in steps 7 and 11.
The collect -races encountered the assertion:
% collect -r races tntnet -c tntnet.conf
WARNING: Target `tntnet' is not instrumented for datarace detection;
reported datarace data may be misleading
Creating experiment database tha.1.er ...
2007-05-01 00:17:08.45017 [796.1] INFO tntnet.tntnet - create 5 worker threads
RDT_assertion failed: 0, file ../src/rde/lockset.c, line 493
The collect -r deadlock seems to work. So I tried running a
test that I would like to run the collect -r races with, using a
script:
#!/bin/ksh
/usr/apache2/bin/ab -n 100000 -c 30 http://10.148.1.102:8000/myfirstproject
It looked like that would take a long time with that may repeats, I might
need to use a smaller experiment. The initial truncated output is:
% collect -r deadlock tntnet -c tntnet.conf
Creating experiment database tha.2.er ...
2007-05-01 00:17:45.57069 [939.1] INFO tntnet.tntnet - create 5 worker threads
2007-05-01 00:21:54.75722 [939.2] INFO tntnet.worker - process request: GET /myfirstproject from client 10.148.1.102 user-Agent "Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7) Gecko/20060629"
2007-05-01 00:21:54.84579 [939.2] INFO tntnet.comploader - load library "myfirstproject"
2007-05-01 00:21:54.99394 [939.2] INFO tntnet.worker - request ready, returncode 200 - ContentSize: 124
2007-05-01 00:23:10.26068 [939.6] INFO tntnet.worker - process request: GET /myfirstproject from client 10.148.1.102 user-Agent "ApacheBench/2.0.41-dev"
2007-05-01 00:23:10.36622 [939.2] INFO tntnet.worker - process request: GET /myfirstproject from client 10.148.1.102 user-Agent "ApacheBench/2.0.41-dev"
2007-05-01 00:23:10.41058 [939.4] INFO tntnet.worker - process request: GET /myfirstproject from client 10.148.1.102 user-Agent "ApacheBench/2.0.41-dev"
2007-05-01 00:23:10.46237 [939.2] INFO tntnet.worker - request ready, returncode 200 - ContentSize: 124
2007-05-01 00:23:10.52218 [939.4] INFO tntnet.worker - request ready, returncode 200 - ContentSize: 124
2007-05-01 00:23:10.58946 [939.6] INFO tntnet.worker - request ready, returncode 200 - ContentSize: 124
Thanks very much for looking at this.
Regards, Mark