Object put data segmentation fault

[QiaoK]

This test https://github.com/hpc-io/pdc/blob/qiao_develop/src/tests/obj_put_data.c would fail with segmentation fault in sequential mode because the put data function does not work. See the line “ret = (perr_t) PDCobj_put_data("o2", (void*)data, 128, cont); There is no reason for this to fail because object “o2” and container “cont” is properly created. The data buffer is also valid.

[QiaoK]

sequential test passed. MPI test failed with segmentation fault. To reproduce, use "./mpi_test.sh ./obj_put_data mpiexec 2 4"

[QiaoK]

Just tested again. Looks like the sequential test sometimes also fails. Here is an example of segmentation fault.

(base) qkang@data6:~/pdc_develop/pdc/src/build/bin$ ./run_test.sh ./obj_put_data
testing: ./obj_put_data

==PDC_SERVER[0]: using [./pdc_tmp/] as tmp dir. 0 OSTs per data file, 0% to BB
==PDC_SERVER[0]: using ofi+tcp
==PDC_SERVER[0]: without multi-thread!
==PDC_SERVER[0]: Read cache enabled!
==PDC_SERVER[0]: Successfully established connection to 0 other PDC servers
==PDC_SERVER[0]: Server ready!

./obj_put_data
==PDC_CLIENT: PDC_DEBUG set to 0!
==PDC_CLIENT[0]: Found 1 PDC Metadata servers, running with 1 PDC clients
==PDC_CLIENT: using ofi+tcp
==PDC_CLIENT[0]: Client lookup all servers at start time!
==PDC_CLIENT[0]: using [./pdc_tmp] as tmp dir, 1 clients per server
create a new pdc
Create a container property
Rank 0 Create a container c0
./run_test.sh: line 20: 25487 Segmentation fault (core dumped) $test_exe $test_args
==PDC_CLIENT: PDC_DEBUG set to 0!
==PDC_CLIENT[0]: Found 1 PDC Metadata servers, running with 1 PDC clients
==PDC_CLIENT: using ofi+tcp
==PDC_CLIENT[0]: Client lookup all servers at start time!
==PDC_CLIENT[0]: using [./pdc_tmp] as tmp dir, 1 clients per server
==PDC_SERVER[0]: error with HG_Finalize

[houjun]

Not able to reproduce this error on Cori, would be helpful if you can get the stack trace when the segfault happens.

[QiaoK]

This problem is resolved by removing some analysis code inside the client functions.