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Bug 1985100 - /etc/depmod.d/dist.conf not included in kmod-28-3
Summary: /etc/depmod.d/dist.conf not included in kmod-28-3
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: kmod
Version: 9.0
Hardware: x86_64
OS: Linux
unspecified
unspecified
Target Milestone: beta
: ---
Assignee: Yauheni Kaliuta
QA Contact: Ziqian SUN (Zamir)
Jana Heves
URL:
Whiteboard:
: 2034093 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-22 20:49 UTC by ricky.armas
Modified: 2022-08-22 10:45 UTC (History)
7 users (show)

Fixed In Version: kmod-28-7.el9
Doc Type: Bug Fix
Doc Text:
.`modprobe` loads out-of-tree kernel modules as expected The `/etc/depmod.d/dist.conf` configuration file provides a search order for the `depmod` utility. Based on the search order, `depmod` creates the `modules.dep.bin` file. This file lists module dependencies, which the `modprobe` utility uses for loading and unloading kernel modules and resolving module dependencies at the same time. Previously, `/etc/depmod.d/dist.conf` was missing. As a result, `modprobe` could not load some out-of-tree kernel modules. This update includes the `/etc/depmod.d/dist.conf` configuration file, which fixes the search order. As a result, `modprobe` loads out-of-tree kernel modules as expected.
Clone Of:
Environment:
Last Closed: 2022-05-17 15:55:34 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:3964 0 None None None 2022-05-17 15:55:37 UTC

Description ricky.armas 2021-07-22 20:49:06 UTC 
Description of problem:

/etc/depmod.d/dist.conf is used to override the default depmod search order.

cat /etc/depmod.d/dist.conf
#
# depmod.conf
#

# override default search ordering for kmod packaging
search updates extra built-in weak-updates

Our out-of-box driver build installs in the extra directory. Since this conf file is not present depmod will not search the extra directory. I can't load the OOB driver using modprobe. 


# grep lpfc /lib/modules/$(uname -r)/modules.dep
kernel/drivers/scsi/lpfc/lpfc.ko.xz: kernel/drivers/nvme/target/nvmet-fc.ko.xz kernel/drivers/nvme/target/nvmet.ko.xz kernel/drivers/nvme/host/nvme-fc.ko.xz kernel/drivers/nvme/host/nvme-fabrics.ko.xz kernel/drivers/nvme/host/nvme-core.ko.xz kernel/block/t10-pi.ko.xz kernel/drivers/scsi/scsi_transport_fc.ko.xz


I can workaround this by installing under "updates" instead of "extra".

# cd /lib/modules/$(uname -r)
# mv extra updates
# depmod -a
# grep lpfc /lib/modules/$(uname -r)/modules.dep
updates/elx-lpfc/lpfc.ko: kernel/drivers/nvme/target/nvmet-fc.ko.xz kernel/drivers/nvme/target/nvmet.ko.xz kernel/drivers/nvme/host/nvme-fc.ko.xz kernel/drivers/nvme/host/nvme-fabrics.ko.xz kernel/drivers/nvme/host/nvme-core.ko.xz kernel/block/t10-pi.ko.xz kernel/drivers/scsi/scsi_transport_fc.ko.xz




Version-Release number of selected component (if applicable):
RHEL 9 Beta (5.13.0-0.rc3.25.el9.x86_64)


How reproducible:


Steps to Reproduce:
1. Build lpfc kernel module.
2. Copy to /lib/modules/$(uname -r)/extra/elx-lpfc/lpfc.ko
3. Run `depmod -a`.
4. rmmod lpfc && modprobe lpfc

Actual results:
depmod will not search the extra directory. /lib/modules/$(uname -r)/modules.dep references the inbox lpfc kernel module. Out-of-box lpfc will not load using modprobe. 


Expected results:
depmod should search the extra directory. The /etc/depmod.d/dist.conf file provides the search order.


Additional info:
Comment 1 ricky.armas 2021-07-22 21:45:45 UTC 
Maybe in RHEL9 each OOB module is expected to create its own conf file in /etc/depmod.d.

Instead of relying on /etc/depmod.d/dist.conf, we can create a custom lpfc.conf.
Example:
# cat /etc/depmod.d/lpfc.conf
search updates extra built-in weak-updates
Comment 24 Yauheni Kaliuta 2021-12-20 07:44:06 UTC 
*** Bug 2034093 has been marked as a duplicate of this bug. ***
Comment 30 errata-xmlrpc 2022-05-17 15:55:34 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 (new packages: kmod), 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-2022:3964
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