X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/3dcd4659f10710621f429066f11ab7b67cd6e878..06c2c19bfe18a52348b72d93db59df4b03a4fcaa:/doc/install/crunch2/install-compute-node-singularity.html.textile.liquid

diff --git a/doc/install/crunch2/install-compute-node-singularity.html.textile.liquid b/doc/install/crunch2/install-compute-node-singularity.html.textile.liquid
index 09a3b4e3ab..e61b6cbe37 100644
--- a/doc/install/crunch2/install-compute-node-singularity.html.textile.liquid
+++ b/doc/install/crunch2/install-compute-node-singularity.html.textile.liquid
@@ -10,7 +10,7 @@ SPDX-License-Identifier: CC-BY-SA-3.0
 {% endcomment %}
 
 {% include 'notebox_begin_warning' %}
-This page describes the requirements for a compute node in a Slurm or LSF cluster that will run containers dispatched by @crunch-dispatch-slurm@ or @arvados-dispatch-lsf@. If you are installing a cloud cluster, refer to "Build a cloud compute node image":/install/crunch2-cloud/install-compute-node.html.
+This page describes the requirements for a compute node in a Slurm or LSF cluster that will run containers dispatched by @crunch-dispatch-slurm@ or @arvados-dispatch-lsf@. If you are installing a cloud cluster, refer to "Build a cloud compute node image":{{ site.baseurl }}/install/crunch2-cloud/install-compute-node.html.
 {% include 'notebox_end' %}
 
 {% include 'notebox_begin_warning' %}
@@ -32,6 +32,8 @@ This page describes how to configure a compute node so that it can be used to ru
 
 {% include 'install_packages' %}
 
+{% include 'install_cuda' %}
+
 h2(#singularity). Set up Singularity
 
 Follow the "Singularity installation instructions":https://sylabs.io/guides/3.7/user-guide/quick_start.html. Make sure @singularity@ and @mksquashfs@ are working:
@@ -54,3 +56,20 @@ Then update @Containers.RuntimeEngine@ in your cluster configuration:
 </notextile>
 
 {% include 'singularity_mksquashfs_configuration' %}
+
+h2(#singularity_loop_device_errors). Singularity loop device errors
+
+With singularity v3.9.1 and earlier, containers may fail intermittently at startup with an error message similar to the following in the container log's @stderr.txt@ (line breaks added):
+
+<notextile>
+<pre><code>FATAL:   container creation failed:
+ mount /proc/self/fd/3->/usr/local/var/singularity/mnt/session/rootfs error:
+ while mounting image /proc/self/fd/3:
+ failed to find loop device:
+ could not attach image file to loop device:
+ failed to set loop flags on loop device:
+ resource temporarily unavailable
+</code></pre>
+</notextile>
+
+This problem is addressed in singularity v3.9.2. For details, please see "Arvados issue #18489":https://dev.arvados.org/issues/18489 and "singularity PR #458":https://github.com/sylabs/singularity/pull/458.