http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48299
--- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-03-29
15:12:00 UTC ---
> Run make check in boehm-gc/testsuite instead. Better yet, just build
> the failing test once and manually rerun it in a loop with
> LD_LIBRARY_PATH or equivalent set.
I have run the following script
#!/bin/sh
i=0
thread_leak_test
while [ $? == 0 ]
do
i=`expr $i + 1`
echo $i
thread_leak_test
done
and saw it fail for i between 8 and 153. The symptom is always
Leaked composite object at start: 0x1000c0f?0, appr. length: 48
and the test starts to consume 100% of the cpu untill I stop it. Sampling the
test gives
Sampling process 85239 for 3 seconds with 1 millisecond of run time between
samples
Sampling completed, processing symbols...
Analysis of sampling thread_leak_test (pid 85239) every 1 millisecond
Process: thread_leak_test [85239]
Path:
/opt/gcc/build_w/x86_64-apple-darwin10.7.0/boehm-gc/testsuite/.libs/thread_leak_test
Load Address: 0x100000000
Identifier: thread_leak_test
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: tcsh [191]
Date/Time: 2011-03-29 16:31:27.577 +0200
OS Version: Mac OS X 10.6.7 (10J869)
Report Version: 6
Call graph:
2682 Thread_17437964 DispatchQueue_1: com.apple.main-thread (serial)
2682 GC_obj_kinds
2682 GC_try_to_collect_inner
2682 GC_finish_collection
2682 GC_set_fl_marks
Total number in stack (recursive counted multiple, when >=5):
Sort by top of stack, same collapsed (when >= 5):
GC_set_fl_marks 2682
Binary Images:
0x100000000 - 0x100000ff7 +thread_leak_test ??? (???)
<C97DEDBE-04FF-EFEE-1C1B-68710038E8C2>
/opt/gcc/build_w/x86_64-apple-darwin10.7.0/boehm-gc/testsuite/.libs/thread_leak_test
0x100003000 - 0x10001dff7 +libgcjgc.1.dylib 2.2.0 (compatibility
2.0.0) <7CAAF920-9603-D889-1D10-4250288EE1C8>
/opt/gcc/build_w/x86_64-apple-darwin10.7.0/boehm-gc/.libs/libgcjgc.1.dylib
0x10004b000 - 0x10005ffe7 +libgcc_s.1.dylib ??? (???)
<559F9DAA-51E8-95F3-B24B-9DDA7CCC1341> /opt/gcc/gcc4.7w/lib/libgcc_s.1.dylib
0x7fff5fc00000 - 0x7fff5fc3bdef dyld 132.1 (???)
<B536F2F1-9DF1-3B6C-1C2C-9075EA219A06> /usr/lib/dyld
0x7fff80415000 - 0x7fff80419ff7 libmathCommon.A.dylib 315.0.0
(compatibility 1.0.0) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5>
/usr/lib/system/libmathCommon.A.dylib
0x7fff80fc4000 - 0x7fff81185fff libSystem.B.dylib 125.2.10
(compatibility 1.0.0) <9BAEB2F2-B485-6349-E1AB-637FE12EE770>
/usr/lib/libSystem.B.dylib
0x7fffffe00000 - 0x7fffffe01fff libSystem.B.dylib ??? (???)
<9BAEB2F2-B485-6349-E1AB-637FE12EE770> /usr/lib/libSystem.B.dylib
Sample analysis of process 85239 written to file /dev/stdout
Note that I have applied the patch in
http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01903.html without any change.
