The stack bounds from pthread are not always accurate, and could
cause seg fault if we run out of the actual stack space before
reaching the bounds. Here we use an artificially small stack bounds
to check overflow without actually running out of the system stack.
Change-Id: I8067c5e1297307103b315d9d0c60120293b57aab
Reviewed-on: https://go-review.googlesource.com/c/go/+/523695 Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>