Stderr output

<core_client_version>7.4.23</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)
</message>
<stderr_txt>
19:59:24 (6704): wrapper (7.7.26015): starting
19:59:24 (6704): wrapper: running run_atlas (--nthreads 1)
[2026-01-21 19:59:24] Arguments: --nthreads 1
[2026-01-21 19:59:24] Threads: 1
[2026-01-21 19:59:24] Checking for CVMFS
[2026-01-21 19:59:57] Probing /cvmfs/atlas.cern.ch... OK
[2026-01-21 20:00:30] Probing /cvmfs/atlas-condb.cern.ch... OK
[2026-01-21 20:00:30] Running cvmfs_config stat atlas.cern.ch
[2026-01-21 20:00:33] VERSION PID UPTIME(M) MEM(K) REVISION EXPIRES(M) NOCATALOGS CACHEUSE(K) CACHEMAX(K) NOFDUSE NOFDMAX NOIOERR NOOPEN HITRATE(%) RX(K) SPEED(K/S) HOST PROXY ONLINE
[2026-01-21 20:00:33] 2.6.0.0 6960 1 23164 103291 2 1 42586425 51200000 0 65024 1 0 n/a 0 0 http://cvmfs-s1fnal.opensciencegrid.org/cvmfs/atlas.cern.ch http://150.244.244.231:3128 0
[2026-01-21 20:00:33] CVMFS is ok
[2026-01-21 20:00:33] Efficiency of ATLAS tasks can be improved by the following measure(s):
[2026-01-21 20:00:33] The CVMFS client on this computer should be configured to use Cloudflare's openhtc.io.
[2026-01-21 20:00:33] Further information can be found at the LHC@home message board.
[2026-01-21 20:00:33] Using apptainer image /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7
[2026-01-21 20:00:33] Checking for apptainer binary...
[2026-01-21 20:00:33] apptainer is not installed, using version from CVMFS
[2026-01-21 20:00:33] Checking apptainer works with /cvmfs/atlas.cern.ch/repo/containers/sw/apptainer/x86_64-el7/current/bin/apptainer exec -B /cvmfs /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7 hostname
[2026-01-21 20:01:33] apptainer isnt working: run_atlas: line 117: /cvmfs/atlas.cern.ch/repo/containers/sw/apptainer/x86_64-el7/current/bin/apptainer: Input/output error
[2026-01-21 20:01:33] Falling back to singularity found in PATH at /usr/bin/singularity
[2026-01-21 20:01:33] WARNING: singularity support will be removed in a future version of native ATLAS
[2026-01-21 20:01:33] Please install apptainer instead following the instructions at https://apptainer.org/docs/admin/main/installation.html
[2026-01-21 20:01:33] Checking singularity works with /usr/bin/singularity exec -B /cvmfs /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7 hostname
[2026-01-21 20:01:48] singularity isnt working either: /.singularity.d/actions/exec: line 5: /.singularity.d/env/94-appsbase.sh: Input/output error
20:11:49 (6704): run_atlas exited; CPU time 0.088000
20:11:49 (6704): app exit status: 0x1
20:11:49 (6704): called boinc_finish(195)

</stderr_txt>
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