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Type: Bug
Resolution: Duplicate
Priority: Normal
Fix Version/s: rhel-10.2
Affects Version/s: rhel-10.2
Component/s: qemu-kvm
Labels:
- virt-arm

Regression:
Yes
Severity:
Important
sprint_count:
1

AssignedTeam:
rhel-virt-hwe-arm-1

Dev Target Milestone:
23
Internal Target Milestone:
27
Story Points:
None
ACKs Check:

QE ack, Dev ack
Target Version:

rhel-10.2
Blocked:
False
Ready:
False
Blocked Reason:

Hide

None

Show
None
Product Documentation Required:
No
Sprint:
Split items

Preliminary Testing:
None
Testable Builds:

Hide
The following Merge Request has pipeline job artifacts available:

Title: Fix guest kernel crash due to injected memory error
MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/merge_requests/1876
MR Pipeline: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/pipelines/2208364142

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.

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

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Updated 2025-12-11 05:57 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://issues.redhat.com/secure/CreateIssueDetails!init.jspa?pid=12334433&issuetype=1&priority=4&summary=buglinker+webhook+issue&components=kernel-workflow+/+buglinker

Show
The following Merge Request has pipeline job artifacts available: Title: Fix guest kernel crash due to injected memory error MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/merge_requests/1876 MR Pipeline: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/pipelines/2208364142 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: CENTOS (c10s_merge_request) DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:2208364337 6.12.0-171.1876_2208364142.el10.s390x: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/2208364337/publish_s390x/12397341747/artifacts/repo/6.12.0-171.1876_2208364142.el10.s390x/ Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/2208364337/publish_s390x/12397341747/artifacts/repo/6.12.0-171.1876_2208364142.el10.s390x/ 6.12.0-171.1876_2208364142.el10.aarch64: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/2208364337/publish_aarch64/12397341745/artifacts/repo/6.12.0-171.1876_2208364142.el10.aarch64/ Repo 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---------------------------------------- Downstream Pipeline Name: DEBUG (c10s_debug_merge_request) DataWarehouse Checkout: https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:2208364334 6.12.0-171.1876_2208364142.el10.s390x-debug: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/2208364334/publish_s390x/12397341881/artifacts/repo/6.12.0-171.1876_2208364142.el10.s390x/ Repo URL: https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/2208364334/publish_s390x/12397341881/artifacts/repo/6.12.0-171.1876_2208364142.el10.s390x/ 6.12.0-171.1876_2208364142.el10.aarch64-debug: Artifacts (RPMs): https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/index.html?prefix=trusted-artifacts/2208364334/publish_aarch64/12397341878/artifacts/repo/6.12.0-171.1876_2208364142.el10.aarch64/ Repo URL: 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https://s3.amazonaws.com/arr-cki-prod-trusted-artifacts/trusted-artifacts/2208364334/publish_x86_64/12397341865/artifacts/repo/6.12.0-171.1876_2208364142.el10.x86_64/ ---------------------------------------- Updated 2025-12-11 05:57 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://issues.redhat.com/secure/CreateIssueDetails!init.jspa?pid=12334433&issuetype=1&priority=4&summary=buglinker+webhook+issue&components=kernel-workflow+/+buglinker
Test Coverage:
None

Release Note Type:
Unspecified Release Note Type - Unknown
ProdDocsReview-CCS:
Unspecified
ProdDocsReview-Dev:
Unspecified
ProdDocsReview-QE:
Unspecified

Experience:
Architecture:

aarch64

PX Impact Score:
SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None
Release Milestone:

Merge Request passes all submitter checks, Merge Request finished CI testing, Merge Request passed CI testing, Merge Request approved by peer review

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

The qemu-kvm process on the host is terminated by a SIGBUS signal during non-fatal memory error injection, causing the guest VM to reboot.

What is the impact of this issue to you?

The memory RAS feature is broken

Please provide the package NVR for which the bug is seen:

Using RHEL-10.2-20251118.1 BaseOS aarch64
qemu-kvm-10.1.0-8.el10.aarch64
libvirt-11.10.0-1.el10.aarch64
6.12.0-171.el10.aarch64 (both 4k and 64k)

How reproducible is this bug?:

100%

Steps to reproduce

Many steps, follow the document. The failing case is 0x10. https://docs.google.com/document/d/1vboOkC7I8WlTItgKpSDwuegY3HniCkh7G6YY5NA2m7Q/edit?tab=t.0#heading=h.rrbpzx9u90i5

[root@ampere-mtsnow-altramax-37 /]# ./einj.sh 0x801540f7000 0x10

Expected results

The injected memory error is detected by QEMU and reported to the guest kernel without causing the guest to reboot

Actual results

The injected memory error caused the guest to reboot

Key lines from running `dmesg -w` on the host machine:

[  874.423343] EDAC MC0: 1 UE multi-bit ECC on unknown memory (node:0 card:2 page:0x801540f7 offset:0x0 grain:1 - APEI location: node:0 card:2 status(0x0000000000000400): Storage error in DRAM memory)
[  874.446545] Memory failure: 0x801540f7: Sending SIGBUS to qemu-kvm:4470 due to hardware memory corruption
[  874.456118] Memory failure: 0x801540f7: recovery action for dirty LRU page: Recovered

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0x10-host-dmesg.txt
14 kB
2025/12/12 12:50 AM
0x10-full-console-log.txt
290 kB
2025/12/12 12:50 AM

relates to

RHEL-135143 [RHEL10.2] Guest kernel crashes due to memory error injection

Integration

Details

Description

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

What is the impact of this issue to you?

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

Steps to reproduce

Expected results

Actual results

Attachments

Attachments

Issue Links

Easy Agile Planning Poker

Activity

People

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