Name FqaMDmZhB38nsSi4ap6QjLDmwznN0nGgGQJmNLGKDmTs0KDmTU35rn_1
Workunit 238632940
Created 22 Jan 2026, 20:48:05 UTC
Sent 23 Jan 2026, 2:05:13 UTC
Report deadline 31 Jan 2026, 2:05:13 UTC
Received 23 Jan 2026, 2:17:25 UTC
Server state Over
Outcome Computation error
Client state Compute error
Exit status 195 (0x000000C3) EXIT_CHILD_FAILED
Computer ID 10587392
Run time 10 min 3 sec
CPU time 0 sec
Priority 28
Validate state Invalid
Credit 0.00
Device peak FLOPS 38.10 GFLOPS
Application version ATLAS Simulation v3.01 (native_mt)
x86_64-pc-linux-gnu
Peak working set size 1.74 MB
Peak swap size 110.99 MB
Peak disk usage 476.14 MB

Stderr output

<core_client_version>7.20.2</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
03:05:37 (87558): wrapper (7.7.26015): starting
03:05:37 (87558): wrapper: running run_atlas (--nthreads 12)
[2026-01-23 03:05:37] Arguments: --nthreads 12
[2026-01-23 03:05:37] Threads: 12
[2026-01-23 03:05:37] Checking for CVMFS
[2026-01-23 03:05:37] Probing /cvmfs/atlas.cern.ch... OK
[2026-01-23 03:05:38] Probing /cvmfs/atlas-condb.cern.ch... OK
[2026-01-23 03:05:38] Running cvmfs_config stat atlas.cern.ch
[2026-01-23 03:05:38] 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
[2026-01-23 03:05:38] 2.7.4.0 38146 54622 67444 155417 2 1 42469552 51200001 0 65024 0 262476 96.0762 2615184 1843 http://cvmfs-stratum-one.cern.ch:8000/cvmfs/atlas.cern.ch http://150.244.244.168:3128 1
[2026-01-23 03:05:38] CVMFS is ok
[2026-01-23 03:05:38] Efficiency of ATLAS tasks can be improved by the following measure(s):
[2026-01-23 03:05:38] The CVMFS client on this computer should be configured to use Cloudflare's openhtc.io.
[2026-01-23 03:05:38] Further information can be found at the LHC@home message board.
[2026-01-23 03:05:38] Using apptainer image /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7
[2026-01-23 03:05:38] Checking for apptainer binary...
[2026-01-23 03:05:38] which: no apptainer in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
[2026-01-23 03:05:38] apptainer is not installed, using version from CVMFS
[2026-01-23 03:05:38] 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
[2026-01-23 03:05:38] apptainer isnt working: INFO   : A system administrator may need to enable user namespaces, install
[2026-01-23 03:05:38] INFO   :   apptainer-suid, or compile with ./mconfig --with-suid
[2026-01-23 03:05:38] ERROR  : Failed to create user namespace: user namespace disabled
[2026-01-23 03:05:38] 
[2026-01-23 03:05:38] It looks like user namespaces are not enabled, which are required when running apptainer from CVMFS.
[2026-01-23 03:05:38] Please run the following command as root to enable them:
[2026-01-23 03:05:38]  echo "user.max_user_namespaces = 15000" > /etc/sysctl.d/90-max_user_namespaces.conf; sysctl -p /etc/sysctl.d/90-max_user_namespaces.conf
03:15:38 (87558): run_atlas exited; CPU time 0.257715
03:15:38 (87558): app exit status: 0x1
03:15:38 (87558): called boinc_finish(195)

</stderr_txt>
]]>


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