Hi Colin,

As you indicated it seems that an actual allocation problem occurred on:

syscall table list zmalloc: Cannot allocate memory (in syscall_table_list() at 
syscall.c:291)
>From the code:

                                                                        
/*                                                                      
 * Allocate at least the number of total syscall we have even if some of
 * them might not be valid. The count below will make sure to return the
 * right size of the events array.                                      
 */                                                                     
events = zmalloc(syscall_table_nb_entry * sizeof(*events));             
if (!events) {                                                          
        PERROR("syscall table list zmalloc");                           
        ret = -LTTNG_ERR_NOMEM;                                         
        goto error;                                                     
}                                                                       
syscall_table_nb_entry is assigned in syscall_init_table.

Could you link the full sessiond log and strace log? Also if possible
determine the value of syscall_table_nb_entry?

Cheers

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https://bugs.launchpad.net/bugs/1671063

Title:
  ubuntu_lttng_smoke_test failed on Yakkety s390x (zVM)

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