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
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 1 day ago 3 months 2 weeks 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 5 months ago 2 years 5 months ago
Lustre Updates filesystem Resolved

9/10/14 - We have not seen any additional crashes of the Lustre servers since making this change.

8/26/14 
- Lustre jobs are being accepted as of 10AM this...

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12 years 1 month ago 12 years 1 month ago
Stale File Handles on GPFS clients filesystem Resolved

OSC is experiencing some problems with the Project and Scratch filesystems that are resulting in some jobs seeing "stale file handles". We are investigating the problem and will provide updates as...

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7 years 9 months ago 7 years 9 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
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
Problems with MVAPICH2 Owens, Ruby, Software Resolved

Some MVAPICH2 MPI installations on Oakley, Ruby, and Owens, such as the default module mvapich2/2.2 as well as mvapich2/2.1, appear to have a bug that is triggered by certain programs.  The...

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10 years 8 months ago 4 years 5 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
Brief interruption of services for some users filesystem Resolved

Today, May 14 2013, at 12:45PM we will be temporarily removing one of the home directory servers from service to address some reliability issues. Users with home...

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13 years 5 months ago 13 years 5 months ago
MPI_THREAD_MULTIPLE is not supported with OpenMPI-HPCX 4.x Owens, Software Resolved

A threading code with MPI where MPI_Init_thread uses MPI_THREAD_MULTIPLE will fail because UCX from HPCX package is built without enabling multi-threading. UCX is the...

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3 years 7 months ago 1 year 5 months ago

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