`TCP connection failed: poll/select: exceptional condition detected'.
* Call MEM_ROUND in __transfer_interim (avoids assert fail
`qu->interim_allocd>=0' on some platforms eg 64 bit).
`TCP connection failed: poll/select: exceptional condition detected'.
* Call MEM_ROUND in __transfer_interim (avoids assert fail
`qu->interim_allocd>=0' on some platforms eg 64 bit).