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Re: Problem with -fsanitize=leak and libpthread

On Tue, 10 Aug 2021, Thomas Klausner wrote:

I was looking for memory leaks in a threaded program using
-fsanitize=leak when I had a weird issue with pthread_join not working
after pthread_cancel.

So I wrote a small test program. When I compile this with leak
detection, it doesn't even start:

==23045==Sanitizer CHECK failed: /usr/src/external/gpl3/gcc/dist/libsanitizer/sanitizer_common/ ((tid)) < ((n_contexts_)) (4294967295, 1)

Any ideas?

To reproduce, install NetBSD/9.99.88/amd64 and do

gcc -g -fsanitize=leak -o join join.c -lpthread

Compile pthread-using programs with `-pthread':

$ gcc -pthread -g -fsanitize=leak -o join join.c
$ ./join


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