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Bug 2125708

Summary: VDO devices ignore I/O errors on data reads from underlying storage.
Product: Red Hat Enterprise Linux 9 Reporter: corwin <corwin>
Component: kmod-kvdoAssignee: corwin <corwin>
Status: CLOSED ERRATA QA Contact: Filip Suba <fsuba>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 9.1CC: awalsh, bgurney, cwei, fsuba, pvlasin
Target Milestone: rcKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 2129073 (view as bug list) Environment:
Last Closed: 2022-11-15 11:18:52 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: 2129073    

Description corwin 2022-09-09 19:46:42 UTC
Description of problem:
A bug exists in the 8.2 versions of kvdo which causes it to ignore I/O errors on data reads from the underlying storage. This can result in data corruption on sub-4K writes in 512e mode, and perceived data corruption on reads.

Version-Release number of selected component (if applicable):
8.2

How reproducible:
The bug is always present but difficult to reproduce as it requires a storage layer which will selectively return I/O errors on read.

Comment 4 Andy Walsh 2022-09-27 03:34:20 UTC
Code posted and built, pending gating and verification.

Updated NVR is kmod-kvdo-8.2.0.21-46.el9_1

Comment 7 Filip Suba 2022-10-03 05:58:56 UTC
Verified with kmod-kvdo-8.2.0.21-46.el9_1.

Comment 9 errata-xmlrpc 2022-11-15 11:18:52 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (kmod-kvdo bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:8333