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I am getting following error message while running my thread-sanitized executable. (I have used -fPIC and -fsanitized=thread flag at compilation , -fsanitize=thread -Wland '-pie' flag during executable time):

FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x2aab6c8a7000 < 0x7cf000000000)
FATAL: Make sure to compile with -fPIE and to link with -pie.
dmake:  Error code 1, while making 'Shell escape'

However after going through this BugZilla link, I have checked /proc/sys/kernel/randomize_va_space and enabled randomization with value 2. I have also specified where to load PIE via a linker switch -Ttext-segment 0x855555000000.

Now I have no more FATAL error but I have encountered with new error message :

dmake:  Error code 137, while making 'Shell escape'

I don't know where I am making mistake with flags. Any idea?

uday singh
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  • I got the answer ,probably I am trying to use Kernel Virtual Address Space,and bcoz of that OS is generating KILL -9 signal to process (which is Error Code 137). But now my question is that , then how should I know which address I will give for text segment flag ? – uday singh Jul 29 '15 at 06:37

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