tree 8fee47bbfe25cefb0889f55e6b280b2354f8e3aa
parent 47cbeb87b732bc6822168d535b25da18b8734659
author Christopher Faulet <cfaulet@haproxy.com> 1653408642 +0200
committer Christopher Faulet <cfaulet@haproxy.com> 1654581365 +0200

BUG/MEDIUM: resolvers: Don't defer resolutions release in deinit function

resolvers_deinit() function is called on error, during post-parsing stage,
or on deinit, when HAProxy is stopped. It releases all entities: resolvers,
resolutions and SRV requests. There is no reason to defer the resolutions
release by moving them in the death_row list because this function is
terminal. And it is in fact a bug. Resolutions must not be released at the
end of the function because resolvers were already freed. However some
resolutions may still be attached to a reolver. Thus, when we try to remove
it from the resolver's tree, in resolv_reset_resolution(), this resolver was
already released.

So now, resolution are immediately released. It means there is no more
reason to track this function. calls to
enter_resolver_code()/leave_resolver_code() have been removed.

This patch should fix the issue #1680 and may be related to #1485. It must
be backported as far as 2.2.

(cherry picked from commit 4315d17d3fbcfd1074ff05fed1eec01d0fc89805)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit dae861c2ceb4620bf5251e7b402bfb076c3cccd2)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>