Control: tag 911620 pending
Hi!
Bug #911620 in package dpkg reported by you has been fixed in
the dpkg/dpkg.git Git repository. You can see the changelog below, and
you can check the diff of the fix at:
https://git.dpkg.org/cgit/dpkg/dpkg.git/diff/?id=7f43bf5f9
---
commit 7f43bf5f93c857bdb419892abfc014a5e9c3c273
Author: Guillem Jover <guil...@debian.org>
Date: Tue Nov 6 03:06:33 2018 +0100
dpkg: Introduce a new dependency try level for trigger processing
The introduction of dependency satisfiability for trigger processing,
which was in the original spec but not the implementation, there has
been countless problems with bogus detection of trigger cycles.
The problem is that whenever we try to process triggers for a package,
we might not be able to due to dependency unsatisfiaiblity, which means
we have to put the package back into the queue. If we add the state into
the cycle detection tracker, then multiple visits to these packages will
hit the cycle detection for artificially generated cycles. But we cannot
avoid performing the checks because that will miss dynamic cycles coming
from maintainer scripts, for example.
To avoid most of these problems (while possibly not fixing all potential
ones), we should delay trigger processsing entirely until we have
emptied the processing queue as much as possible. We do that by
introducing a new dependency try level, after the dependency cycle
breaking one.
We will also make the trigger cycle detection unconditional of the
dependency try, because for the trigproc try-queued it will not matter
anymore as we will only ented on higher dependency tries, and for the
other trigproc types we should not care about any queue-specific
dependency try level.
Closes: #810724, #854478, #911620
diff --git a/debian/changelog b/debian/changelog
index f0d38635f..6b223549f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -42,6 +42,11 @@ dpkg (1.19.3) UNRELEASED; urgency=medium
only reset the cycle detection in case we are not bailing out from the
processing with an error, otherwise we could come back to this package and
detect an artificial trigger cycle.
+ * dpkg: Introduce a new dependency try level for trigger processing. This
+ completely defers trigger processing until after the dependency cycle
+ breaking level, so to avoid generating artificial trigger cycles, when we
+ end up trying to process triggers with yet unsatisifiable dependencies.
+ Closes: #810724, #854478, #911620
* Perl modules:
- Dpkg::Changelog::Debian: Preserve modelines at EOF. Closes: #916056
Thanks to Chris Lamb <la...@debian.org> for initial test cases.
