On 5/23/2022 6:35 PM, Kathleen Capella wrote:
In this section of the code:

stack_ptr = rte_zmalloc_socket("lcore_stack",
                                       stack_size,
                                       stack_size,
                                       rte_lcore_to_socket_id(lcore_id));

stack memory is aligned to the stack_size. According to the implementation of 
rte_zmalloc_socket, the alignment must be a power of two. If the user inputs a number of 
KBs that is not a power of two, this will fail with a generic error message of " 
EAL: Cannot allocate worker lcore stack memory." A check for this occurrence with a 
more descriptive error message and a note in the documentation would be good to include.
Good point.  Alignment to stack size is not necessary.  I'll post a new version that only requires cache line alignment.

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