Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 406 by [email protected]: leak is only reported about 1/2 of
runs
https://code.google.com/p/address-sanitizer/issues/detail?id=406
The attached program always leaks a malloc. However, the leak is not
always reported. See expected output section.
What steps will reproduce the problem?
1. make check
2. make check
3. make check
What is the expected output? What do you see instead?
rfp@sebastian:~/src/asan.sometimes.leaks$ make check
clang-3.5 -g -fsanitize=address -O0 -fno-omit-frame-pointer -o leak leak.c
clang-3.5 --version
Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based
on LLVM 3.5.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
./leak
=================================================================
==31259==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 1 byte(s) in 1 object(s) allocated from:
#0 0x49a88b in __interceptor_malloc
(/home/rfp/src/asan.sometimes.leaks/leak+0x49a88b)
#1 0x4b8218 in main /home/rfp/src/asan.sometimes.leaks/leak.c:4:15
#2 0x2b20fb394ec4 in __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:287
SUMMARY: AddressSanitizer: 1 byte(s) leaked in 1 allocation(s).
make: *** [check] Error 23
rfp@sebastian:~/src/asan.sometimes.leaks$ make check
clang-3.5 --version
Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based
on LLVM 3.5.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
./leak
rfp@sebastian:~/src/asan.sometimes.leaks$ make check
clang-3.5 --version
Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based
on LLVM 3.5.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
./leak
=================================================================
==31268==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 1 byte(s) in 1 object(s) allocated from:
#0 0x49a88b in __interceptor_malloc
(/home/rfp/src/asan.sometimes.leaks/leak+0x49a88b)
#1 0x4b8218 in main /home/rfp/src/asan.sometimes.leaks/leak.c:4:15
#2 0x2b4d14b3eec4 in __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:287
SUMMARY: AddressSanitizer: 1 byte(s) leaked in 1 allocation(s).
make: *** [check] Error 23
rfp@sebastian:~/src/asan.sometimes.leaks$ make check
clang-3.5 --version
Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based
on LLVM 3.5.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
./leak
What version of the product are you using? On what operating system?
ubuntu 14.04
clang-3.5
Please provide any additional information below.
Attachments:
leak.c 114 bytes
Makefile 158 bytes
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