Bug 1328398

Summary:	[z-stream clone - 3.6.5] RHEV Agent service will consume almost 100% cpu on win2012R2 and win8-32 OS
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	rhev-integ
Component:	ovirt-guest-agent	Assignee:	Vinzenz Feenstra [evilissimo] <vfeenstr>
Status:	CLOSED NEXTRELEASE	QA Contact:	Jiri Belka <jbelka>
Severity:	high	Docs Contact:
Priority:	high
Version:	3.5.0	CC:	agkesos, gklein, knoel, lijin, lsurette, lveyde, mdeng, mgoldboi, michal.skrivanek, mkenneth, pstehlik, rbalakri, srevivo, tjelinek, vfeenstr, ykaul
Target Milestone:	ovirt-3.6.5	Keywords:	Reopened, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	3.6.5-1	Doc Type:	Bug Fix
Doc Text:	Previously when the RHEVM Guest Agent was running and had some IO errors on reading from or writing to the VirtIO Socket errors would lead to a non ratelimited endless loop until the error would resolve itself. This had a very bad performance impact on the Virtual Machine. This has been resolved.	Story Points:	---
Clone Of:	1257835	Environment:
Last Closed:	2016-05-06 21:30:22 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1257835, 1332204
Bug Blocks:

Comment 1 Jiri Belka 2016-04-19 12:09:03 UTC

ok, RHEV-Agent64.msi - 4.13.4 (as there's no WGT iso build yet containing newer agent)

a defensive code was added to the agent that adds log message visibile in DEBUG level informing about I/O issue with virtio-channel and sleeps 1s. verified with stopped vdsm on hosts.

Comment 4 Michal Skrivanek 2016-05-06 21:30:22 UTC

Will be shipped in 3.6.6 guest tools

Comment 5 Jiri Belka 2016-05-16 10:27:23 UTC

ok, 3.6-6 wgt iso