--- Comment #21 from Dmitry Vyukov <dvyukov at google dot com> ---
> is that huge number abnormal?

Let's say it is atypical for C/C++ programs because of fixed-size stacks. But
tsan has limit of 64K frames in the latest version (maybe 4.8.2 had limit of
32K frames).
But do you actually have that many frame in the thread stack? If you do bt in
gdb, does it actually show tens of thousands of frames? We had bugs when shadow
stack is maintained incorrectly and frames "leak".

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