| Name | F5eMDmVJS28n9Rq4apOajLDm4fhM0noT9bVo0NGKDme8oKDm7uWcnn_0 |
| Workunit | 238582876 |
| Created | 20 Jan 2026, 14:59:08 UTC |
| Sent | 20 Jan 2026, 15:18:18 UTC |
| Report deadline | 28 Jan 2026, 15:18:18 UTC |
| Received | 20 Jan 2026, 15:33:00 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 4 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 | 394.94 MB |
Stderr output
<core_client_version>7.20.2</core_client_version> <![CDATA[ <message> process exited with code 195 (0xc3, -61)</message> <stderr_txt> 16:18:40 (142496): wrapper (7.7.26015): starting 16:18:40 (142496): wrapper: running run_atlas (--nthreads 12) [2026-01-20 16:18:40] Arguments: --nthreads 12 [2026-01-20 16:18:40] Threads: 12 [2026-01-20 16:18:40] Checking for CVMFS [2026-01-20 16:18:41] Probing /cvmfs/atlas.cern.ch... OK [2026-01-20 16:18:41] Probing /cvmfs/atlas-condb.cern.ch... OK [2026-01-20 16:18:41] Running cvmfs_config stat atlas.cern.ch [2026-01-20 16:18:41] 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 [2026-01-20 16:18:41] 2.7.4.0 38146 51095 66504 155351 4 1 42225775 51200001 0 65024 0 248815 95.8925 2565164 1819 http://cvmfs-stratum-one.cern.ch:8000/cvmfs/atlas.cern.ch http://150.244.244.168:3128 1 [2026-01-20 16:18:41] CVMFS is ok [2026-01-20 16:18:41] Efficiency of ATLAS tasks can be improved by the following measure(s): [2026-01-20 16:18:41] The CVMFS client on this computer should be configured to use Cloudflare's openhtc.io. [2026-01-20 16:18:41] Further information can be found at the LHC@home message board. [2026-01-20 16:18:41] Using apptainer image /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7 [2026-01-20 16:18:41] Checking for apptainer binary... [2026-01-20 16:18:41] which: no apptainer in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin) [2026-01-20 16:18:41] apptainer is not installed, using version from CVMFS [2026-01-20 16:18:41] 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 [2026-01-20 16:18:41] apptainer isnt working: INFO : A system administrator may need to enable user namespaces, install [2026-01-20 16:18:41] INFO : apptainer-suid, or compile with ./mconfig --with-suid [2026-01-20 16:18:41] [91mERROR : Failed to create user namespace: user namespace disabled [2026-01-20 16:18:41] [0m [2026-01-20 16:18:41] It looks like user namespaces are not enabled, which are required when running apptainer from CVMFS. [2026-01-20 16:18:41] Please run the following command as root to enable them: [2026-01-20 16:18:41] echo "user.max_user_namespaces = 15000" > /etc/sysctl.d/90-max_user_namespaces.conf; sysctl -p /etc/sysctl.d/90-max_user_namespaces.conf 16:28:42 (142496): run_atlas exited; CPU time 0.237544 16:28:42 (142496): app exit status: 0x1 16:28:42 (142496): called boinc_finish(195) </stderr_txt> ]]>
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