Name YpWMDmBGT58n9Rq4apOajLDm4fhM0noT9bVooX4SDm5DHKDme5V79n_1
Workunit 238758483
Created 29 Jan 2026, 2:19:49 UTC
Sent 29 Jan 2026, 2:47:23 UTC
Report deadline 6 Feb 2026, 2:47:23 UTC
Received 29 Jan 2026, 3:02:20 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 2.05 MB
Peak swap size 111.15 MB
Peak disk usage 477.40 MB

Stderr output

<core_client_version>7.20.2</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
03:47:47 (302852): wrapper (7.7.26015): starting
03:47:47 (302852): wrapper: running run_atlas (--nthreads 12)
[2026-01-29 03:47:47] Arguments: --nthreads 12
[2026-01-29 03:47:47] Threads: 12
[2026-01-29 03:47:47] Checking for CVMFS
[2026-01-29 03:47:47] Probing /cvmfs/atlas.cern.ch... OK
[2026-01-29 03:47:47] Probing /cvmfs/atlas-condb.cern.ch... OK
[2026-01-29 03:47:47] Running cvmfs_config stat atlas.cern.ch
[2026-01-29 03:47:47] 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
[2026-01-29 03:47:47] 2.7.4.0 38146 63304 69004 155626 0 1 43456144 51200000 588 65024 1 288093 96.2352 2861586 1600 http://cvmfs-stratum-one.cern.ch:8000/cvmfs/atlas.cern.ch http://150.244.244.168:3128 1
[2026-01-29 03:47:47] CVMFS is ok
[2026-01-29 03:47:47] Efficiency of ATLAS tasks can be improved by the following measure(s):
[2026-01-29 03:47:47] The CVMFS client on this computer should be configured to use Cloudflare's openhtc.io.
[2026-01-29 03:47:47] Further information can be found at the LHC@home message board.
[2026-01-29 03:47:47] Using apptainer image /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/x86_64-centos7
[2026-01-29 03:47:47] Checking for apptainer binary...
[2026-01-29 03:47:47] which: no apptainer in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
[2026-01-29 03:47:47] apptainer is not installed, using version from CVMFS
[2026-01-29 03:47:47] 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
[2026-01-29 03:47:48] apptainer isnt working: INFO   : A system administrator may need to enable user namespaces, install
[2026-01-29 03:47:48] INFO   :   apptainer-suid, or compile with ./mconfig --with-suid
[2026-01-29 03:47:48] ERROR  : Failed to create user namespace: user namespace disabled
[2026-01-29 03:47:48] 
[2026-01-29 03:47:48] It looks like user namespaces are not enabled, which are required when running apptainer from CVMFS.
[2026-01-29 03:47:48] Please run the following command as root to enable them:
[2026-01-29 03:47:48]  echo "user.max_user_namespaces = 15000" > /etc/sysctl.d/90-max_user_namespaces.conf; sysctl -p /etc/sysctl.d/90-max_user_namespaces.conf
03:57:48 (302852): run_atlas exited; CPU time 0.171699
03:57:48 (302852): app exit status: 0x1
03:57:48 (302852): called boinc_finish(195)

</stderr_txt>
]]>


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