Public bug reported:
The coming merge of latest multipath-tools will add a dependency to
liburcu.
This was added upstream by:
commit cb98c8837693a4a4f76895ff3e8c59bc3ba844ca
Author: Hannes Reinecke <[email protected]>
Date: Tue Jun 14 16:36:30 2016 +0200
multipathd: use userspace RCU to access configuration
That is a non optional change (no configure selection or runtime detection).
Patching out the locking of the project sounds like the most error prone thing
I can think of, therefore I request a MIR for liburcu.
Processing Main Inclusion Requirements:
1. Availability: The package must already be in the Ubuntu universe, and must
build for the architectures it is designed to work on.
Last version fine since Xenial,former verisions go back til precise (not all
archs)
liburcu1 | 0.6.7-2 | precise/universe | amd64, armhf, i386, powerpc
liburcu1 | 0.7.12-0ubuntu2 | trusty | amd64, arm64, armhf, i386,
powerpc, ppc64el
liburcu2 | 0.8.5-1ubuntu1 | vivid | amd64, arm64, armhf, i386,
powerpc, ppc64el
liburcu4 | 0.9.1-3 | xenial/universe | amd64, arm64, armhf, i386, powerpc,
ppc64el, s390x
liburcu4 | 0.9.2-3 | yakkety | amd64, arm64, armhf, i386, powerpc,
ppc64el, s390x
liburcu4 | 0.9.2-3 | zesty | amd64, arm64, armhf, i386, powerpc,
ppc64el, s390x
2. The package is useful for a large part of our user base.
=> The package is a new build dependency or dependency of a package that we
already support and in wide use by enterprise Ubuntu setups (multipath-tools).
=> The package helps meet a specific Blueprint goal (The merge of a more recent
multipath-version in blueprint servercloud-z-server-core).
3. Security.
=> So far the package never showed up in any of the links referred to by
"Security Checks"
=> No Executables which have the suid or sgid bit set (no executables at all
btw, so no /sbin, ...)
=> No services / daemons
=> No ports
=> no addon/plugin so far used directly by
* gdnsd
* glusterfs-common
* knot
* liblttng-ctl0
* liblttng-ust-ctl2
* liblttng-ust0
* liburcu-dev
* lttng-tools
* netsniff-ng
* python3-lttng
None of these is especially security-sensitive software (filters, scanners, UI
skins, etc)
4. Quality assurance
=> no config needed
=> no debconf
=> no long term outstanding bugs that matter (only one for precise which nobody
seemed to care so far, but that is not crit at all)
https://bugs.launchpad.net/ubuntu/+source/liburcu
https://bugs.debian.org/cgi-bin/pkgreport.cgi?dist=unstable;package=liburcu
=> No special HW needs to be used
=> Comes with a unit test that is ran on build via dh_auto_test
=> it has a watch file
5. UI standards
=> No user-facing application, so no UI/Translation needs
6. Dependencies:
=> has only one Dependency to libc6, no suggests, recommends
7. Standards compliance
=> No known FHS/Policy issues
8. Maintenance
=> Well maintained in Debian, only a sync so far.
Since needed for the process we might set Server-Dev, given what it does
Foundations might be more correct but I can't directly volunteer others :-/
9. Background information:
=> The package descriptions is comprehensive and correct IMHO:
"This data synchronization library provides read-side access which scales
linearly with the number of cores. It does so by allowing multiples copies of
a given data structure to live at the same time, and by monitoring the data
structure accesses to detect grace periods after which memory reclamation is
possible."
** Affects: liburcu (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- [MIR] liburcu needed for multipath-tools
+ [MIR] liburcu
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https://bugs.launchpad.net/bugs/1644757
Title:
[MIR] liburcu
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