Known issues

Unresolved known issues

Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.

Resolved known issues

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.

Known Issues

Title Category Resolutionsort descending Description Posted Updated
Login problem Resolved

Around 10am EDT, OSC began to experience problems with our infrastructure.  Login sessions began to be affected around 11:30 EDT. The problem was resolved around 1pm EDT, and all systems have...

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2 years 5 months ago 2 years 5 months 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...

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4 months 5 days ago 3 months 3 weeks ago
Intermittent DNS issues Resolved

3/9/15 Update: The DNS issues have been resolved.  In total, the following services may have been affected by the DNS issues:

  • Logging in / Connecting out to...
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11 years 7 months ago 11 years 7 months ago
Cannot use mpiexec/mpirun from OpenMPI in an interactive session Owens, Pitzer, Software Resolved
(workaround)

We found mpiexec/mpirun from OpenMPI can not be used in an interactive session (launched by sinteractive) after upgrading Pitzer and...

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5 years 7 months ago 1 year 3 months ago
Issues with GPFS filesystem since Saturday May 18 filesystem Resolved

Update Posted on 20 May 2019 13:24

We fixed the problem with both project and scratch filesystem. Please contact oschelp@osc.edu if...

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7 years 4 months ago 7 years 4 months ago
MPI-IO issues on home directories with Intel MPI 2019.3 Pitzer, Software Resolved
(workaround)

Certain MPI-IO operations with intelmpi/2019.3 may crash, fail or proceed with errors on the home directory. We do not expect the same issue on our GPFS file system, such as the...

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1 year 5 months ago 1 year 5 months ago
Dec 27, 2016: Issues with /fs/project filesystem Resolved

Dec 27, 2016 3:46PM Update: Both project and scratch file systems (/fs/project and /fs/scratch ) are back to normal now.  Some users' jobs may be...

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9 years 9 months ago 9 years 9 months ago
MyOSC unavailable on Tuesday, August 2, 2022, from 10 am to 12 pm client portal Resolved

We will be adding a charge account structure. MyOSC will be unavailable on Tuesday, August 2, 2022, from 10 am to 12 pm while the update occurs. See...

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4 years 2 months ago 4 years 2 months ago
Lustre, Infiniband Operational and Being Monitored Closely filesystem Resolved

UPDATE: Most users should no longer see any issues with Lustre.


Again, please continue to notify OSC Help of any errors you see in job output. For example, you might see "...

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12 years 2 months ago 12 years 2 months ago
Maintenance outage on the cluster export services Maintenance, OnDemand, Ruby Resolved

Update on 14 April 2020, 0903:

Work is completed.

Original message:

There will be maintenance on cluster export services on Tuesday, April...

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6 years 6 months ago 6 years 6 months ago

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