An enhancement to DIAG 8 to use a buffer list like DIAG 250 does for disk I/O would circumvent the contiguous memory requirement. The Ry register already contains a flag byte that could be extended to indicate Rx+1 being a buffer list rather than the buffer.
On 10/18/17, 2:13 PM, "Linux on 390 Port on behalf of Christian Borntraeger" <[email protected] on behalf of [email protected]> wrote: >Yes, this is memory fragmentation. >Heiko recently did some changes that should improve the situation. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
