Bug 1338046

Summary: dnf will consume 100% CPU when there is no space left on device
Product: [Fedora] Fedora Reporter: Thadeu Lima de Souza Cascardo <cascardo>
Component: dnfAssignee: rpm-software-management
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 23CC: jsilhan, mluscon, mmraka, packaging-team-maint, pnemade, rkhan, vmukhame
Target Milestone: ---Keywords: Reopened
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: dnf-1.1.10-1.fc24 dnf-1.1.10-1.fc23 dnf-1.1.10-1.fc25 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-08-19 19:51:33 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Thadeu Lima de Souza Cascardo 2016-05-20 23:07:43 UTC
Description of problem:

dnf will consume 100% of CPU when trying to create a lock when the device is full.

Version-Release number of selected component (if applicable):
dnf-1.1.8-1.fc23.noarch

How reproducible:
dnf started by itself and I noticed a 100% CPU consumption, killed dnf two times. The third time, I ran strace and found out about the full device.

Steps to Reproduce:
1. Make / full.
2. Let dnf start.
3. Notice 100% CPU use.

Actual results:
dnf consumes 100% CPU.

Expected results:
dnf should bail out.

Additional info:
strace output.

open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/var/cache/dnf/metadata_lock.pid", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0644) = -1 ENOSPC (No space left on device)
open("/var/cache/dnf/metadata_lock.pid", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

Comment 2 Fedora Admin XMLRPC Client 2016-07-08 09:39:06 UTC
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.

Comment 3 Igor Gnatenko 2016-07-21 14:39:26 UTC
Fixed as part of DNF 2.0 release which will be available at some point soon.

Comment 4 Fedora Update System 2016-08-18 15:19:16 UTC
dnf-1.1.10-1.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-267f843cda

Comment 5 Fedora Update System 2016-08-18 15:20:30 UTC
dnf-1.1.10-1.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2016-8caa619a9e

Comment 6 Fedora Update System 2016-08-18 15:21:33 UTC
dnf-1.1.10-1.fc24 dnf-plugins-core-0.1.21-3.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-878284e0d3

Comment 7 Fedora Update System 2016-08-18 16:52:45 UTC
dnf-1.1.10-1.fc25, dnf-plugins-core-0.1.21-4.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-8caa619a9e

Comment 8 Fedora Update System 2016-08-19 00:22:32 UTC
dnf-1.1.10-1.fc23, dnf-plugins-core-0.1.21-3.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-267f843cda

Comment 9 Fedora Update System 2016-08-19 00:57:44 UTC
dnf-1.1.10-1.fc24, dnf-plugins-core-0.1.21-3.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-878284e0d3

Comment 10 Fedora Update System 2016-08-19 19:50:37 UTC
dnf-1.1.10-1.fc24, dnf-plugins-core-0.1.21-3.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2016-08-23 15:19:44 UTC
dnf-1.1.10-1.fc23, dnf-plugins-core-0.1.21-3.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 Fedora Update System 2016-08-27 10:20:45 UTC
dnf-1.1.10-1.fc25, dnf-plugins-core-0.1.21-4.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.