Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.
Bug 589059 - Xen pvops kernel storage backend stats location changed
Summary: Xen pvops kernel storage backend stats location changed
Alias: None
Product: Virtualization Tools
Classification: Community
Component: libvirt
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Libvirt Maintainers
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2010-05-05 09:29 UTC by Adi Kriegisch
Modified: 2016-03-21 00:09 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2016-03-21 00:09:29 UTC

Attachments (Terms of Use)
fix block_stats for xen/pvops kernel (deleted)
2010-05-05 09:29 UTC, Adi Kriegisch
no flags Details | Diff

Description Adi Kriegisch 2010-05-05 09:29:42 UTC
Created attachment 411526 [details]
fix block_stats for xen/pvops kernel

As stated in "/sys/devices/xen-backend/" changed to "/sys/bus/xen-backend/".
Therefor libvirt (virsh, virt-manager, ...) are unable to report storage backend performance numbers. This seems to be true for all new Xen pv-ops kernels (2.6.3X)
The attached patch tries to fix this by appending that path to "read_bd_stat" in "src/xen/block_stats.c".

Comment 1 Cole Robinson 2016-03-21 00:09:29 UTC
Sorry this patch was never reviewed...  a similar patch was eventually applied upstream:

commit 8a70113a9949fd482151f2962dd760364525a996
Author: Guido Günther <>
Date:   Fri Sep 10 15:57:35 2010 +0200

    Fix block statistics with newer versions of Xen

Note You need to log in before you can comment on or make changes to this bug.