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Type: Bug
Resolution: Done-Errata
Priority: Normal
Fix Version/s: rhel-9.5
Affects Version/s: rhel-9.5
Component/s: kernel / Desktop / fbdev
Labels:
- known_issue_95

Fixed in Build:
kernel-5.14.0-486.el9
Regression:
Yes
Severity:
Critical
Keywords:

CustomerScenariosInitiative
sprint_count:
1

Pool Team:

rhel-sst-virtualization-hwe
Sub-System Group:

ssg_virtualization

Dev Target Milestone:
20
Internal Target Milestone:
26
Story Points:
200
Blocked:
False
Blocked Reason:

Hide

None

Show
None
Product Documentation Required:
None
Sprint:
zKVM CY24Q3

Preliminary Testing:
Pass
Testable Builds:

Hide
The following Merge Request has pipeline job artifacts available:

Title: drm/fbdev-generic: Fix framebuffer on big endian devices
MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/4645
MR Pipeline: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/pipelines/1358747575

The Repo URLs are *not* accessible from a web browser! They only function as a dnf or yum baseurl.

Artifacts expire six weeks after creation. If artifacts are needed after that time please rerun the pipeline by visiting the MR's 'Pipelines' tab and clicking the 'Run pipeline' button.

----------------------------------------

Downstream Pipeline Name: RHEL_COMPAT (c9s_rhel9_compat_merge_request)
DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358748134

5.14.0-473.4645_1358747575.el9.s390x-debug:
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5.14.0-473.4645_1358747575.el9.ppc64le-debug:
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5.14.0-473.4645_1358747575.el9.ppc64le:
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5.14.0-473.4645_1358747575.el9.x86_64-debug:
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5.14.0-473.4645_1358747575.el9.x86_64:
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----------------------------------------

Downstream Pipeline Name: REALTIME (c9s_rt_merge_request)
DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358747983

5.14.0-473.4645_1358747575.el9.x86_64-debug:
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Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358747983/publish_x86_64/7253913543/artifacts/repo/5.14.0-473.4645_1358747575.el9.x86_64/

----------------------------------------

Downstream Pipeline Name: AUTOMOTIVE (c9s_automotive_check_merge_request)
DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358748374

5.14.0-473.424.4645_1358747575.el9iv.aarch64-debug:
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5.14.0-473.424.4645_1358747575.el9iv.aarch64:
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5.14.0-473.424.4645_1358747575.el9iv.x86_64-debug:
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5.14.0-473.424.4645_1358747575.el9iv.x86_64:
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Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358748374/publish_x86_64/7253915451/artifacts/repo/5.14.0-473.424.4645_1358747575.el9iv.x86_64/

----------------------------------------

Downstream Pipeline Name: 64K (c9s_64k_merge_request)
DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358748067

5.14.0-473.4645_1358747575.el9.aarch64-debug:
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Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358748067/publish_aarch64_debug/7253913937/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/

5.14.0-473.4645_1358747575.el9.aarch64:
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Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358748067/publish_aarch64/7253913866/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/

----------------------------------------

Updated 2024-07-05 11:52 UTC by buglinker:
- KWF FAQ: https://red.ht/kernel_workflow_doc
- Slack #team-kernel-workflow: https://redhat-internal.slack.com/archives/C04LRUPMJQ5
- Source: https://gitlab.com/cki-project/kernel-workflow/-/blob/main/webhook/buglinker.py
- Documentation: https://gitlab.com/cki-project/kernel-workflow/-/blob/main/docs/README.buglinker.md
- Report an issue: https://gitlab.com/cki-project/kernel-workflow/-/issues/new?issue%5Btitle%5D=buglinker%20webhook%20issue

Show
The following Merge Request has pipeline job artifacts available: Title: drm/fbdev-generic: Fix framebuffer on big endian devices MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/4645 MR Pipeline: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/pipelines/1358747575 The Repo URLs are *not* accessible from a web browser! They only function as a dnf or yum baseurl. Artifacts expire six weeks after creation. If artifacts are needed after that time please rerun the pipeline by visiting the MR's 'Pipelines' tab and clicking the 'Run pipeline' button. ---------------------------------------- Downstream Pipeline Name: RHEL_COMPAT (c9s_rhel9_compat_merge_request) DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358748134 5.14.0-473.4645_1358747575.el9.s390x-debug: Artifacts (RPMs): https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/index.html?prefix=internal-artifacts/1358748134/publish_s390x_debug/7253914729/artifacts/repo/5.14.0-473.4645_1358747575.el9.s390x/ Repo URL: https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/internal-artifacts/1358748134/publish_s390x_debug/7253914729/artifacts/repo/5.14.0-473.4645_1358747575.el9.s390x/ 5.14.0-473.4645_1358747575.el9.s390x: Artifacts (RPMs): 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https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/index.html?prefix=internal-artifacts/1358748134/publish_aarch64/7253914559/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ Repo URL: https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/internal-artifacts/1358748134/publish_aarch64/7253914559/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ 5.14.0-473.4645_1358747575.el9.ppc64le-debug: Artifacts (RPMs): https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/index.html?prefix=internal-artifacts/1358748134/publish_ppc64le_debug/7253914523/artifacts/repo/5.14.0-473.4645_1358747575.el9.ppc64le/ Repo URL: https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/internal-artifacts/1358748134/publish_ppc64le_debug/7253914523/artifacts/repo/5.14.0-473.4645_1358747575.el9.ppc64le/ 5.14.0-473.4645_1358747575.el9.ppc64le: Artifacts (RPMs): 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https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/index.html?prefix=internal-artifacts/1358748134/publish_x86_64/7253914424/artifacts/repo/5.14.0-473.4645_1358747575.el9.x86_64/ Repo URL: https://artifacts.internal.cki-project.org/arr-cki-prod-internal-artifacts/internal-artifacts/1358748134/publish_x86_64/7253914424/artifacts/repo/5.14.0-473.4645_1358747575.el9.x86_64/ ---------------------------------------- Downstream Pipeline Name: REALTIME (c9s_rt_merge_request) DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358747983 5.14.0-473.4645_1358747575.el9.x86_64-debug: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/1358747983/publish_x86_64_debug/7253913579/artifacts/repo/5.14.0-473.4645_1358747575.el9.x86_64/ Repo URL: 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https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:1358748067 5.14.0-473.4645_1358747575.el9.aarch64-debug: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/1358748067/publish_aarch64_debug/7253913937/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358748067/publish_aarch64_debug/7253913937/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ 5.14.0-473.4645_1358747575.el9.aarch64: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/1358748067/publish_aarch64/7253913866/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/1358748067/publish_aarch64/7253913866/artifacts/repo/5.14.0-473.4645_1358747575.el9.aarch64/ ---------------------------------------- Updated 2024-07-05 11:52 UTC by buglinker: - KWF FAQ: https://red.ht/kernel_workflow_doc - Slack #team-kernel-workflow: https://redhat-internal.slack.com/archives/C04LRUPMJQ5 - Source: https://gitlab.com/cki-project/kernel-workflow/-/blob/main/webhook/buglinker.py - Documentation: https://gitlab.com/cki-project/kernel-workflow/-/blob/main/docs/README.buglinker.md - Report an issue: https://gitlab.com/cki-project/kernel-workflow/-/issues/new?issue%5Btitle%5D=buglinker%20webhook%20issue
Errata Link:
https://errata.engineering.redhat.com/advisory/128795
Test Coverage:

Manual

Experience:
Architecture:

s390x

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None

What were you trying to do that didn't work?

Connect to the guest console via virtio-gpu

Please provide the package NVR for which bug is seen:

guest kernel 5.14.0-467
host kernel 5.14.0-460

How reproducible:

100%

Steps to reproduce

Set up a VM with virtio-gpu (but without an actual desktop environment), e.g.

# virt-install --import --disk <installed-qcow2> --os-variant rhel9-unknown --name latest_rhel9 --memory 2048 --vcpus 2  --graphics vnc,listen=0.0.0.0 --input keyboard,bus=virtio --input tablet,bus=virtio --name rhel9

Use VNC or virt-viewer to connect to the guest console

Expected results

The text console is displayed

Actual results

The session doesn't receive any graphics

Additional notes

thuth@redhat.com reported this. He already narrowed down the affected kernel version: up to 5.14.0-464 the console is still shown, since then not.

Note that this only affects the text console, if the guest has a working desktop environment the graphics still work as expected. In that case the issue can be reproduced by stopping the gdm daemon.

This was hit on s390x. I'll ask for help to reproduce this on other archs.