On Nov 10, 2020, at 2:28 PM, Daniel Gustafsson <dan...@yesql.se> wrote:
> 
> Digging through the archives from when this landed in curl, the assertion
> failure was never fully identified back then but happened spuriously.  Which
> version of NSPR is this happening with?

This is NSPR 4.29, with debugging enabled. The fd that causes the
assertion is the custom layer that's added during be_tls_open_server(),
which connects a Port as the layer secret. It looks like NSPR is trying
to help surface potential memory leaks by asserting if the secret is
non-NULL at the time the stack is being closed.

In this case, it doesn't matter since the Port lifetime is managed
elsewhere, but it looks easy enough to add a custom close in the way
that cURL and the NSPR test programs [1] do. Sample patch attached,
which gets me to the end of the tests without any assertions. (Two
failures left on my machine.)

--Jacob

[1] https://hg.mozilla.org/projects/nspr/file/bf6620c143/pr/tests/nblayer.c#l354

Attachment: patch
Description: patch

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