GNU bug report logs - #41363
knot-resolver: Enable reloading of policy files (add lua-cqueues)

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Message #25 received at 41363 <at> debbugs.gnu.org (full text, mbox):

From: Simon South <simon <at> simonsouth.net>
To: 41363 <at> debbugs.gnu.org
Subject: [bug#41363] knot-resolver: Enable reloading of policy files (add
 lua-cqueues)
Date: Fri, 29 May 2020 15:36:01 -0400

[Message part 1 (text/plain, inline)]

I'm posting updated patches here as a work-in-progress, in case anyone
else is interested. The patches are not yet ready to be applied.

The package definitions are pretty much complete (I believe), however
the regression tests for luajit-cqueues are failing for me on both
aarch64 and x86_64.

On aarch64, the test for issue #71 (only) fails with

    71-empty-cqueue: .......
    71-empty-cqueue: testing issue 71A
    71-empty-cqueue: 71A OK
    71-empty-cqueue: testing 71B
    71-empty-cqueue: setting alert on inner loop
    71-empty-cqueue: stepping inner loop
    71-empty-cqueue: polling inner loop
    71-empty-cqueue: stepping inner loop
    71-empty-cqueue: timeout before inner loop test completed

This test, along with the rest of the suite, passes fine if the stock
Lua 5.1 interpreter is used instead, which suggests a possible
regression in LuaJIT. (Building LuaJIT from the latest revision in its
source repository leads to the same error.)

On x86_64, that test passes but a different one fails:

    141-segfault-on-accept: OK
    PANIC: unprotected error in call to Lua API (attempt to call a thread value)

I've written to the authors of cqueues regarding the first issue but
have not received a response. I may try following up with LuaJIT's
author as a next step; a bit of analysis might reveal why these tests
are failing but my interest here is in getting a DNS server up and
running, not in learning Lua or diving into the internals of a compiler.

Perhaps someone more familiar with these libraries, language and tools
could help?

--
Simon South
ssouth <at> simonsouth.net

[0001-gnu-Add-luajit-ossl.patch (text/x-patch, attachment)]

[0002-gnu-Add-lua-cqueues.patch (text/x-patch, attachment)]

[0003-gnu-knot-resolver-Enable-automatic-reloading-of-poli.patch (text/x-patch, attachment)]

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