Bug 1123355

Summary:	Document -drive rerror/werror restrictions
Product:	Red Hat Enterprise Linux 7	Reporter:	Markus Armbruster <armbru>
Component:	qemu-kvm	Assignee:	Markus Armbruster <armbru>
Status:	CLOSED DEFERRED	QA Contact:	CongLi <coli>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	chayang, coli, hhuang, juzhang, michen, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1179995 (view as bug list)		Environment:
Last Closed:	2019-02-06 22:59:18 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:
Bug Depends On:
Bug Blocks:	1179995

Description Markus Armbruster 2014-07-25 12:14:25 UTC

Description of problem:
rerror/werror require support in the underlying device model.
Currently, only ide-hd, ide-cd, ide-drive (legacy), scsi-hd, scsi-cd,
scsi-disk (legacy), scsi-block (partially[*]), virtio-blk-device do.

Device models that do not support it: isa-fdc, cfi.pflash01,
scsi-generic, nvme, ...

How reproducible:
Always

Steps to Reproduce:
1. Peruse -help, qemu.1 and qemu-doc.html on rerror/werror.

Actual results:
Not a word on rerror/werror working only with some device models.

Expected results:
Restrictions get explained adequately along with the possible values
of rerror/werror.

Additional info:
Upstream first.

[*] Should work as long as you stick to plain read/write.  Fancy stuff
like write same gets tricky.

Comment 5 Ademar Reis 2017-11-28 17:13:29 UTC

> Component: qemu-kvm → qemu-kvm-rhev

Revert, we already have Bug 1179995 (sorry).

Comment 6 Ademar Reis 2019-02-06 22:59:18 UTC

WONTFIX in qemu-kvm due to capacity. We don't support direct invocation of qemu-kvm in RHEL anyway.