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Bug 1812069

Summary:	kmod-kvdo does not work with the latest 8.3.0 kernel
Product:	Red Hat Enterprise Linux 8	Reporter:	Andy Walsh <awalsh>
Component:	kmod-kvdo	Assignee:	Andy Walsh <awalsh>
Status:	CLOSED ERRATA	QA Contact:	Filip Suba <fsuba>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.4	CC:	awalsh, corwin, fsuba, pvlasin
Target Milestone:	rc	Flags:	pm-rhel: mirror+
Target Release:	8.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	kmod-kvdo-6.2.3.114-74.el8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-04 02:01:47 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:

Description Andy Walsh 2020-03-10 13:24:51 UTC

Description of problem:
The latest available build of kmod-kvdo depends on kernel-4.18.0-187.el8, but that is not available in the 8.3.0 environment.  Additionally, this Bug will be used for any kABI compatibility issues that arise through the 8.3.0 release.

Version-Release number of selected component (if applicable):
kmod-kvdo-6.2.2.117-65.el8
kernel-4.18.0-187.el8

How reproducible:
100%

Steps to Reproduce:
1. Install rhel-8.3.0
2. Try to install kmod-kvdo

Actual results:
Error: 
 Problem: conflicting requests
  - nothing provides kernel >= 4.18.0-187.el8 needed by kmod-kvdo-6.2.2.117-65.el8.x86_64
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

Expected results:
kmod-kvdo installs.

Additional info:

Comment 2 Andy Walsh 2020-03-10 16:56:50 UTC

kmod-kvdo-6.2.2.117-67.el8 has been built against the rhel-8.3.0 kernel and it is passing tests for me.

Comment 3 Andy Walsh 2020-05-11 14:14:11 UTC

kernel-4.18.0-197.el8.aarch64 is unable to load the uds kernel moudule in kmod-kvdo-6.2.2.117_8.3-71.el8.aarch64.

:: [ 09:53:29 ] :: [  BEGIN   ] :: Running 'insmod /lib/modules/4.18.0-193.13.el8.aarch64/extra/kmod-kvdo/uds/uds.ko'
insmod: ERROR: could not insert module /lib/modules/4.18.0-193.13.el8.aarch64/extra/kmod-kvdo/uds/uds.ko: Unknown symbol in module
:: [ 09:53:29 ] :: [   FAIL   ] :: Command 'insmod /lib/modules/4.18.0-193.13.el8.aarch64/extra/kmod-kvdo/uds/uds.ko' (Expected 0, got 1)
:: [ 09:53:29 ] :: [  BEGIN   ] :: Running 'dmesg'
[  150.499969] uds: loading out-of-tree module taints kernel.
[  150.506551] uds: Unknown symbol dm_bufio_prefetch (err 0)
[  150.508210] uds: Unknown symbol dm_bufio_mark_buffer_dirty (err 0)
[  150.509811] uds: Unknown symbol dm_bufio_read (err 0)
[  150.511011] uds: disagrees about version of symbol cpu_hwcap_keys
[  150.512321] uds: Unknown symbol cpu_hwcap_keys (err -22)
[  150.513462] uds: disagrees about version of symbol cpu_hwcaps
[  150.514693] uds: Unknown symbol cpu_hwcaps (err -22)
[  150.515781] uds: Unknown symbol dm_bufio_client_destroy (err 0)
[  150.517096] uds: Unknown symbol dm_bufio_get_block_data (err 0)
[  150.518412] uds: Unknown symbol dm_bufio_client_create (err 0)
[  150.519715] uds: Unknown symbol dm_bufio_release (err 0)
[  150.520926] uds: Unknown symbol dm_bufio_write_dirty_buffers (err 0)
[  150.522345] uds: Unknown symbol dm_bufio_new (err 0)
[  150.523422] uds: Unknown symbol dm_bufio_set_sector_offset (err 0)
:: [ 09:53:29 ] :: [   PASS   ] :: Command 'dmesg' (Expected 0, got 0)

Comment 5 Andy Walsh 2020-05-12 13:28:23 UTC

kmod-kvdo-6.2.2.117_8.3-73.el8 is now available to run against kernel-4.18.0-197.el8 and newer to address the latest kABI change.

Comment 11 Filip Suba 2020-09-16 11:32:33 UTC

Verified with kernel-4.18.0-237.el8 and latest 8.3.0 nightly compose.

Comment 15 errata-xmlrpc 2020-11-04 02:01:47 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-2020:4551