Name WhNKDm6yx28n9Rq4apOajLDm4fhM0noT9bVo0NGKDm4wsKDmg6dtVn_0
Workunit 238619856
Created 22 Jan 2026, 0:50:34 UTC
Sent 22 Jan 2026, 5:08:14 UTC
Report deadline 30 Jan 2026, 5:08:14 UTC
Received 22 Jan 2026, 5:33:15 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 2 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 1.75 MB
Peak swap size 110.99 MB
Peak disk usage 247.35 MB

Stderr output

<core_client_version>7.20.2</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
06:08:29 (292698): wrapper (7.7.26015): starting
06:08:29 (292698): wrapper: running run_atlas (--nthreads 12)
[2026-01-22 06:08:29] Arguments: --nthreads 12
[2026-01-22 06:08:29] Threads: 12
[2026-01-22 06:08:29] Checking for CVMFS
[2026-01-22 06:08:29] Probing /cvmfs/atlas.cern.ch... OK
[2026-01-22 06:08:29] Probing /cvmfs/atlas-condb.cern.ch... OK
[2026-01-22 06:08:29] Running cvmfs_config stat atlas.cern.ch
[2026-01-22 06:08:30] 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
[2026-01-22 06:08:30] 2.7.4.0 38146 53365 66964 155392 0 1 42376838 51200000 0 65024 0 253319 95.9506 2598907 1838 http://cvmfs-stratum-one.cern.ch:8000/cvmfs/atlas.cern.ch http://150.244.244.168:3128 1
[2026-01-22 06:08:30] CVMFS is ok
[2026-01-22 06:08:30] Efficiency of ATLAS tasks can be improved by the following measure(s):
[2026-01-22 06:08:30] The CVMFS client on this computer should be configured to use Cloudflare's openhtc.io.
[2026-01-22 06:08:30] Further information can be found at the LHC@home message board.
[2026-01-22 06:08:30] Using apptainer image /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7
[2026-01-22 06:08:30] Checking for apptainer binary...
[2026-01-22 06:08:30] which: no apptainer in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
[2026-01-22 06:08:30] apptainer is not installed, using version from CVMFS
[2026-01-22 06:08:30] 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
[2026-01-22 06:08:30] apptainer isnt working: INFO   : A system administrator may need to enable user namespaces, install
[2026-01-22 06:08:30] INFO   :   apptainer-suid, or compile with ./mconfig --with-suid
[2026-01-22 06:08:30] ERROR  : Failed to create user namespace: user namespace disabled
[2026-01-22 06:08:30] 
[2026-01-22 06:08:30] It looks like user namespaces are not enabled, which are required when running apptainer from CVMFS.
[2026-01-22 06:08:30] Please run the following command as root to enable them:
[2026-01-22 06:08:30]  echo "user.max_user_namespaces = 15000" > /etc/sysctl.d/90-max_user_namespaces.conf; sysctl -p /etc/sysctl.d/90-max_user_namespaces.conf
06:18:30 (292698): run_atlas exited; CPU time 0.235730
06:18:30 (292698): app exit status: 0x1
06:18:30 (292698): called boinc_finish(195)

</stderr_txt>
]]>


©2026 CERN