Bug 2402740 - 8.0.120 breaks gating tests and breaks apps in F43+
Summary: 8.0.120 breaks gating tests and breaks apps in F43+
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: dotnet8.0
Version: rawhide
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: ---
Assignee: Omair Majid
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-09 15:23 UTC by Michael Cronenworth
Modified: 2025-11-11 00:49 UTC (History)
1 user (show)

Fixed In Version: dotnet8.0-8.0.121-1.fc43
Clone Of:
Environment:
Last Closed: 2025-11-11 00:49:40 UTC
Type: Bug
Embargoed:
omajid: mirror+


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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FC-2526 0 None None None 2025-10-14 13:36:17 UTC

Description Michael Cronenworth 2025-10-09 15:23:00 UTC
Description of problem:
Applications coredump on Fedora 43 and higher after upgrading from 8.0.19 to 8.0.20.

Only affects Fedora 43 and higher. Apps in Fedora 42 with 8.0.20 do not coredump.

Downgrading F43 to 8.0.19 allows apps to work.


Version-Release number of selected component (if applicable):
dotnet8.0-8.0.120-1.fc43


How reproducible: Always


Steps to Reproduce:
1. dnf install jellyfin (from RPMFusion)
2. systemctl start jellyfin
3. coredump

Actual results:
Service does not start

Expected results:
Service starts.


Additional info:
https://bugzilla.rpmfusion.org/show_bug.cgi?id=7330

Comment 1 Omair Majid 2025-10-09 16:46:42 UTC
Thank you for reporting this.

I am aware that recent builds of all versions of .NET - 8.0, 9.0 and 10.0 - are currently fully broken in Fedora 43 and later. On a clean install on a fresh system, any SDK command - even `dotnet new hello` - leads to a segfault in the runtime.

Based on the timing of the break and the widespread nature, I suspect something recently changed in the compiler or compiler flags that we use to build .NET itself. I will dig deeper into this over the next few days.

Comment 2 Fedora Update System 2025-11-04 17:25:45 UTC
FEDORA-2025-9171c95e17 (dotnet8.0-8.0.121-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-9171c95e17

Comment 3 Fedora Update System 2025-11-11 00:49:40 UTC
FEDORA-2025-9171c95e17 (dotnet8.0-8.0.121-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


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