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 ascending Description Posted Updated
Some issues remain after downtime Login Problems, Operations, Outage Resolved

15 July 2016, 5:00PM update: some additional issues we are facing

  • We are experiencing periodic hangs of the GPFS client file system software used with the new storage environment. ...
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10 years 4 weeks ago 8 years 10 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 1 week ago 4 years 1 day 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 7 months ago 9 years 7 months ago
Ansys DesignModeler with hardware acceleration Software Resolved
(workaround)

Ansys DesignModeler with hardware acceleration is not working.

With Ansys version greater than 19.1, DesignModeler is working with software rendering mode, but it is very slow.

 ...

6 years 8 months ago 1 year 2 months ago
OnDemand experiencing difficulties Web Services Resolved

OnDemand is experiencing some difficulties that may be related to the changes from the downtime. We are aware of these problems and are working on resolving them. We appreciate your patience.

12 years 6 months ago 12 years 6 months ago
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 3 months ago 2 years 3 months ago
Rolling reboot of all clusters, starting from 8 AM Tuesday, June 19, 2018 Batch, Owens, Ruby Resolved

Posted on June 12, 2018, at 4:40 PM:

We will have rolling reboots of three clusters (Owens, Ruby, and Oakley) including login and compute nodes, starting from 8 AM Tuesday...

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8 years 1 month ago 8 years 1 month 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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1 month 4 weeks ago 1 month 2 weeks 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 5 months ago 1 year 1 month 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 5 months ago 11 years 5 months ago

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