A rolling reboot is scheduled to remediate a ptrace vulnerability and safely restore debugger functionalit
Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.
A known issue with a Resolved (workaround) Resolution state is an ongoing problem; a permanent workaround is available which may include using different software or hardware.
A known issue with Resolved Resolution state has been corrected.
| Title | Category | Resolution | Description |
Posted |
Updated |
|---|---|---|---|---|---|
| Rolling Reboot of all three HPC clusters beginning July 7 |
Unresolved |
A rolling reboot is scheduled to remediate a |
1 week 3 days ago | 1 day 11 hours ago | |
| Rolling Reboot for Security Fix |
Resolved |
A rolling reboot is in progress to address CVE-2026-23111 (nf_tables logic bug) for all clusters, including Ascend, Cardinal, and Pitzer. Login nodes will be rebooted first and access... Read more |
4 weeks 1 day ago | 2 weeks 4 days ago | |
| Temporary Login Node Instability on Ascend | Ascend |
Unresolved |
We are currently experiencing temporary instability on the Ascend login nodes, which may result in slow response times or unexpected session disconnects. Our team is actively... Read more |
1 month 1 week ago | 3 weeks 2 days ago |
| cuMemHostRegister Fails with CUDA_ERROR_INVALID_VALUE on RHEL 9.6 | Ascend, Cardinal, GPU, system software |
Resolved |
After upgrading the operating system to RHEL 9.6 during the scheduled downtime on May 12, 2026, applications utilizing UCX (... Read more |
1 month 1 week ago | 2 weeks 2 days ago |
| STAR-CCM+ OpenMPI Job Failed due to Out-of-Memory | Cardinal, Software |
Resolved (workaround) |
After the scheduled downtime on May 12, 2026, STAR-CCM+ has been encountering out-of-memory errors when running OpenMPI jobs. A message similar to the following... Read more |
1 month 1 week ago | 2 weeks 3 days ago |
| ptrace Disabled so Debuggers and Tracers Do Not Work |
Unresolved |
|
1 month 3 weeks ago | 2 weeks 15 hours ago | |
| MATLAB (legacy) r2024a fails to launch on OnDemand Desktop | Software |
Resolved (workaround) |
As of the downtime on 05/12/26 MATLAB (legacy) has stopped working when users try to open .m files in the GUI application for version r2024a. At the time we suggested to please use the... Read more |
1 month 3 weeks ago | 1 month 3 weeks ago |
| autodock-gpu 1.5.2 does not work on Cardinal | Software |
Resolved |
autodock-gpu/1.5.2 does not work on Cardinal. We suggest using autodock-gpu/1.6 instead |
2 months 3 days ago | 2 months 3 days ago |
| Classroom Jupyter and RStudio Apps | Software |
Resolved |
If you have classroom projects at OSC that used the Jupyter or RStudio apps through class.osc.edu before June 30, 2025 and plan to reuse your classroom... Read more |
2 months 1 week ago | 2 months 1 week ago |
| Reboot of Public-Facing Systems for Security Fix |
Resolved |
Updates on May 12: All public-facing systems have been rebooted. Original Post: Due to a critical... Read more |
2 months 1 week ago | 1 month 4 weeks ago |
