We are currently experiencing temporary instability on the Ascend login nodes.
A rolling reboot is in progress to address CVE-2026-23111 for all clusters, including Ascend, Cardinal, and Pitzer.
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 |
|---|---|---|---|---|---|
| ptrace Disabled Across OSC Systems |
Unresolved |
|
3 weeks 6 days ago | 3 weeks 6 days ago | |
| STAR-CCM+ OpenMPI Job Failed due to Out-of-Memory | Cardinal, Software |
Unresolved (workaround) |
After the scheduled downtime on May 12, 2026, STAR-CCM+ encounters out-of-memory errors when running OpenMPI jobs. A message... Read more |
2 weeks 1 day ago | 2 weeks 1 day ago |
| cuMemHostRegister Fails with CUDA_ERROR_INVALID_VALUE on RHEL 9.6 | Ascend, Cardinal, GPU, system software |
Unresolved |
After upgrading the operating system to RHEL 9.6 during the scheduled downtime on May 12, 2026, applications utilizing UCX (... Read more |
2 weeks 1 day ago | 2 weeks 1 day 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 |
2 weeks 9 hours ago | 2 weeks 9 hours ago |
| Rolling Reboot for Security Fix |
Unresolved |
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 |
1 day 6 hours ago | 8 hours 42 min ago | |
| Armstrong inaccessible |
Resolved |
Update: 2PM March 12th: Armstrong is back up and running. Please notify oschelp@osc.edu of any lingering issues. As of 10AM Thursday March 12th... Read more |
11 years 3 months ago | 11 years 3 months ago | |
| Singularity: failed to pull a large Docker image | Software |
Resolved (workaround) |
You might encounter an error while pulling a large Docker image: [pitzer-login01]$ apptainer pull docker://qimme2/core FATAL: Unable to pull docker://qiime2/core While...Read more |
1 year 1 month ago | 6 months 3 weeks ago |
| GPFS filesystem Errors on June 4 2019 | filesystem |
Resolved |
Update Posted on 04 June 2019 12:27 PM We fixed the problem with both project and scratch filesystem and the service has been restored. Please contact ... Read more |
7 years 1 week ago | 7 years 1 week ago |
| weld predictor - slurm account error | OnDemand, Software |
Resolved |
Updated on 09/08/2022: Users can choose the project code from a dropdown list to use. Original Post: Users of weld predictor software in... Read more |
3 years 10 months ago | 3 years 9 months ago |
| Issues with VDI through OnDemand | Batch |
Resolved |
Update: Jan 23, 2017 3PM: this issue has been fixed. There is an issue with OSC OnDemand -> Desktops -> Virtual Desktop Interface (VDI) such that you get "qsub: submit error ..."... Read more |
9 years 4 months ago | 9 years 4 months ago |
