# Has anyone seen this before? Singularity + Nextflow + Slurm HPC

**URL:** https://community.seqera.io/t/has-anyone-seen-this-before-singularity-nextflow-slurm-hpc/826
**Category:** Ask for help
**Created:** [June 6, 2024, 6:26pm UTC](https://community.seqera.io/t/has-anyone-seen-this-before-singularity-nextflow-slurm-hpc/826 "2024-06-06T18:26:25Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Adnan\_Hafeez](https://dub1.discourse-cdn.com/flex013/user_avatar/community.seqera.io/adnan_hafeez/32/552_2.png) [@Adnan\_Hafeez](https://community.seqera.io/u/Adnan_Hafeez)
#### Post date: [June 6, 2024, 6:26pm UTC](https://community.seqera.io/t/has-anyone-seen-this-before-singularity-nextflow-slurm-hpc/826/1 "2024-06-06T18:26:25Z")

</div>

We recently upgraded to SLURM 23.11.6, and enabled tmp container creation for jobs. Post upgrade, our Nextflow pipelines have stopped working with this error:

```auto

container creation failed: mount tmpfs->/opt/singularity/4.1.2/var/singularity/mnt/session error: while mounting tmpfs: can't mount tmpfs filesystem to /opt/singularity/4.1.2/var/singularity/mnt/session: write unix: write: broken pipe

```

Has anyone seen this before? Any ideas on how to fix? It appears to be trying to mount the /opt directory?

Thanks in advance