Bug 1344039

Summary: [UX] Error: conflicting requests. conflicting requests. conflicting requests
Product: [Fedora] Fedora Reporter: Marcin Juszkiewicz <mjuszkie>
Component: dnfAssignee: Packaging Maintenance Team <packaging-team-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: jsilhan, mls, mluscon, packaging-team-maint, pnemade, vmukhame
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Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Clone Of: Environment:
Last Closed: 2016-06-15 16:01:16 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
debugdata info from --debuglevel 9 --debugsolver none

Description Marcin Juszkiewicz 2016-06-08 15:04:52 UTC 
Created attachment 1166046 [details]
debugdata info from --debuglevel 9 --debugsolver

Description of problem:

Due to some issues with 4.7-rc kernel under rawhide I decided to check with 4.6 one. Fetched kernel/kernel-core/kernel-modules packages from koji and tried to install:

16:59 hrw@puchatek:del$ ls kernel-*
kernel-4.6.0-1.fc25.x86_64.rpm  kernel-core-4.6.0-1.fc25.x86_64.rpm  kernel-modules-4.6.0-1.fc25.x86_64.rpm
16:59 hrw@puchatek:del$ sudo dnf install kernel*rpm
Last metadata expiration check: 0:00:08 ago on Wed Jun  8 16:59:24 2016.
Error: conflicting requests.
conflicting requests.
conflicting requests
(try to add '--allowerasing' to command line to replace conflicting packages)
16:59 hrw@puchatek:del$ sudo dnf install kernel*rpm --allowerasing
Last metadata expiration check: 0:00:20 ago on Wed Jun  8 16:59:24 2016.
Error: conflicting requests.
conflicting requests.
conflicting requests
16:59 hrw@puchatek:del$ sudo dnf install kernel*rpm --allowerasing --best
Last metadata expiration check: 0:00:25 ago on Wed Jun  8 16:59:24 2016.
Error: conflicting requests.
conflicting requests.
conflicting requests
16:59 hrw@puchatek:del$ sudo dnf install kernel*rpm --allowerasing --best --verbose
cachedir: /var/cache/dnf
Loaded plugins: copr, Query, noroot, download, builddep, needs-restarting, etckeeper, reposync, protected_packages, config-manager, langpacks, generate_completion_cache, debuginfo-install, playground
langpacks: No languages are enabled
Error reading file : /var/lib/dnf/plugins/langpacks/installed_langpacks as it does not exist
initialized Langpacks plugin
DNF version: 1.1.9
repo: using cache for: google-talkplugin
not found deltainfo for: google-talkplugin
not found updateinfo for: google-talkplugin
repo: using cache for: skype
not found deltainfo for: Skype Repository
not found updateinfo for: Skype Repository
repo: using cache for: google-chrome
not found deltainfo for: google-chrome
not found updateinfo for: google-chrome
repo: using cache for: fedora-rawhide-kernel-nodebug-source
not found deltainfo for: Rawhide kernels built without debugging turned on - Source
not found updateinfo for: Rawhide kernels built without debugging turned on - Source
repo: using cache for: fedora-rawhide-kernel-nodebug
not found deltainfo for: Rawhide kernels built without debugging turned on
not found updateinfo for: Rawhide kernels built without debugging turned on
repo: using cache for: qemu-firmware-jenkins
not found deltainfo for: firmware for qemu, built by jenkins, fresh from git repos
not found updateinfo for: firmware for qemu, built by jenkins, fresh from git repos
repo: using cache for: rawhide
not found updateinfo for: Fedora - Rawhide - Developmental packages for the next Fedora release
repo: using cache for: virtualbox
not found deltainfo for: Fedora 25 - x86_64 - VirtualBox
not found updateinfo for: Fedora 25 - x86_64 - VirtualBox
repo: using cache for: rpmfusion-free-22
not found deltainfo for: RPM Fusion for Fedora 22 - Free
not found updateinfo for: RPM Fusion for Fedora 22 - Free
repo: using cache for: google-chrome-unstable
not found deltainfo for: google-chrome-unstable
not found updateinfo for: google-chrome-unstable
repo: using cache for: hrw-rpmfusion
not found deltainfo for: RPM Fusion Hrw
not found updateinfo for: RPM Fusion Hrw
repo: using cache for: fedora-spotify
not found deltainfo for: negativo17 - Spotify
not found updateinfo for: negativo17 - Spotify
repo: using cache for: bluejeans
not found deltainfo for: Blue Jeans Network, Inc. - x86_64 software and updates
not found updateinfo for: Blue Jeans Network, Inc. - x86_64 software and updates
google-talkplugin: using metadata from Thu Apr  2 19:35:03 2015.
skype: using metadata from Thu Jan 21 11:27:21 2010.
google-chrome: using metadata from Mon Jun  6 20:22:42 2016.
fedora-rawhide-kernel-nodebug-source: using metadata from Sat Jun  4 18:54:25 2016.
fedora-rawhide-kernel-nodebug: using metadata from Sat Jun  4 18:54:46 2016.
qemu-firmware-jenkins: using metadata from Wed Jun  8 00:08:13 2016.
rawhide: using metadata from Tue Jun  7 09:29:17 2016.
virtualbox: using metadata from Thu Apr 28 20:08:29 2016.
rpmfusion-free-22: using metadata from Wed Aug  5 14:49:43 2015.
google-chrome-unstable: using metadata from Mon Jun  6 20:22:42 2016.
hrw-rpmfusion: using metadata from Fri May 20 09:56:42 2016.
fedora-spotify: using metadata from Mon May 23 21:18:10 2016.
bluejeans: using metadata from Fri May  6 05:04:22 2016.
Last metadata expiration check: 0:00:30 ago on Wed Jun  8 16:59:24 2016.
--> Starting dependency resolution
--> Finished dependency resolution
Error: conflicting requests.
conflicting requests.
conflicting requests
16:59 hrw@puchatek:del$ 

Version-Release number of selected component (if applicable):

17:00 hrw@puchatek:del$ dnf --version
1.1.9
  Installed: dnf-0:1.1.9-2.fc25.noarch at 2016-05-30 09:17
  Built    : Fedora Project at 2016-05-24 15:40

  Installed: rpm-0:4.13.0-0.rc1.37.fc25.x86_64 at 2016-06-08 11:27
  Built    : Fedora Project at 2016-06-02 14:08


How reproducible:

always

Steps to Reproduce:
1. start recent rawhide
2. try to install 4.6 kernel from http://koji.fedoraproject.org/koji/buildinfo?buildID=765346

Actual results:

Error: conflicting requests.
conflicting requests.
conflicting requests

Expected results:

package installed or information what is wrong is provided

Additional info:

Is there a way to get information what is wrong? Attached debugdata does not give it.
Comment 1 Michael Schröder 2016-06-13 12:27:50 UTC 
The debugdata shows that dnf asks the solver to both install and erase the kernel, thus the "conflicting requests".

I think this is a glitch in hawkey's limit_installonly_packages function, it should take the job into account.

(you have kernel versions 4.7.0-0.rc0.git3.1.fc25, 4.7.0-0.rc0.git10.2.fc25, 4.7.0-0.rc2.git0.1.fc25 installed and ask for version 4.6.0-1.fc25, which has a lower version than the installed kernels)
Comment 2 Marcin Juszkiewicz 2016-06-13 12:38:45 UTC 
That's why I marked it UX - message "conflicting requests" is just a bit better than "bleh bleh bleh".

Saying "you have newer versions installed, try 'dnf downgrade' instead" would be better message.
Comment 3 Michael Schröder 2016-06-13 13:05:23 UTC 
(It's not complaining about the downgrade, the kernel is marked multiversion so there is no downgrade. It's the code that limits the number of installed kernels that causes the error.)
Comment 4 Honza Silhan 2016-06-15 16:01:16 UTC 
Yes, it's about the logic in hawkey when selecting which kernels should be installed and which removed because of installonly limit. I still don't know how to handle installonly limit correctly. This happens during the installation of lower kernel version.

*** This bug has been marked as a duplicate of bug 1191611 ***