Bug 1123355 - Document -drive rerror/werror restrictions
Summary: Document -drive rerror/werror restrictions
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Markus Armbruster
QA Contact: CongLi
URL:
Whiteboard:
Depends On:
Blocks: 1179995
TreeView+ depends on / blocked
 
Reported: 2014-07-25 12:14 UTC by Markus Armbruster
Modified: 2019-02-06 22:59 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1179995 (view as bug list)
Environment:
Last Closed: 2019-02-06 22:59:18 UTC
Target Upstream Version:

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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.
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