Stderr output

<core_client_version>8.0.4</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
2026-06-20 04:44:55 (11462): wrapper (7.24.26018): starting
2026-06-20 04:44:55 (11462): wrapper (7.24.26018): starting
2026-06-20 04:44:55 (11462): wrapper: running ./mfakto (-d 0)
2026-06-20 04:44:55 (11462): wrapper: created child process 11464
mfakto 0.16.0-beta.5 (64-bit build)


Runtime options
  INI file                  mfakto.ini
  Verbosity                 1
  SieveOnGPU                yes
  MoreClasses               yes
  GPUSievePrimes            81157
  GPUSieveProcessSize       24 Kib
  GPUSieveSize              96 Mib
  FlushInterval             0
  WorkFile                  worktodo.txt
  ResultsFile               results.txt
  JSONResultsFile           results.json.txt
  LogFile                   mfakto.log
  Checkpoints               enabled
  CheckpointDelay           60 s
  Stages                    disabled
  StopAfterFactor           bit level
  PrintMode                 compact
  Logging                   disabled
  V5UserID                  none
  ComputerID                none
  TimeStampInResults        yes
  LegacyResultsTxt          no
  VectorSize                2
  GPUType                   AUTO
  UseBinfile                mfakto_Kernels.elf

Compile-time options

Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
      post the name to the GIMPS forum or GitHub to have it added to mfakto.

      Device name:   AMD Radeon Vega 11 Graphics (radeonsi, raven, ACO, DRM 3.61, 6.12.90+deb13.1-amd64) (AMD)
      mfakto thread: https://www.mersenneforum.org/node/11037
      GitHub:        https://github.com/primesearch/mfakto/issues

      You can also set GPUType in mfakto.ini to avoid this message.

OpenCL device info
  name                      AMD Radeon Vega 11 Graphics (radeonsi, raven, ACO, DRM 3.61, 6.12.90+deb13.1-amd64) (AMD)
  device (driver) version   OpenCL 1.1 Mesa 25.0.7-2 (25.0.7-2)
  maximum threads per block 256
  maximum threads per grid  16777216
  number of multiprocessors 11 (704 compute elements)
  clock rate                1250 MHz

Automatic parameters
  threads per grid          0
  optimizing kernels for    GCN

Compiling kernels.
 
	BUILD OUTPUT
In file included from input.cl:80:
./common.cl:135:6: error: redeclaration of 'popcount' must have the 'overloadable' attribute
/usr/include/clc/integer/unary.inc:1:39: note: previous overload of function is here
/usr/include/clc/integer/popcount.h:1:24: note: expanded from macro '__CLC_FUNCTION'
In file included from input.cl:86:
./barrett.cl:257:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:258:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:447:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:448:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:514:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:882:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:883:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:949:11: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2397:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2398:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2542:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2543:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2687:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2688:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2832:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2833:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2977:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:2978:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:3122:12: error: use of undeclared identifier 'amd_bitalign'
./barrett.cl:3123:12: error: use of undeclared identifier 'amd_bitalign'

 	END OF BUILD OUTPUT
Error -11 (Build program failure): clBuildProgram
ERROR: load_kernels(0) failed
2026-06-20 04:45:02 (11462): ./mfakto exited; CPU time 5.727612
2026-06-20 04:45:02 (11462): app exit status: 0x2
2026-06-20 04:45:02 (11462): called boinc_finish(195)

</stderr_txt>
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