Re: bootloader issue
"T. Makinen" <[email protected]> Wed, 14 Jan 2009 16:04:58 +0200
| Newsgroups | gmane.os.netbsd.ports.atari |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Jan 14, 2009 at 12:19 PM, Izumi Tsutsui <[email protected]> wrote: > Tuomo wrote: > >> It looks that ST_POOL_SIZE=24 is pulled up to NetBSD-5 already: >> http://mail-index.netbsd.org/source-changes/2008/11/25/msg213344.html > > Ah, I missed that.. > >> But we should also pullup disabled DMA for Falcon as well. It seems that both >> changes should be pulled for NetBSD-4 too. >> >> I'm not sure if TT was affected by ST_POOL_SIZE set to 22, but I guess larger >> value won't hurt. > > According to atari_init.c, ST_POOL_SIZE pages are reserved > for pool at early stage during initialazation, so using > a larger number would waste (limited?) memory. I guess that pool exhausting should not be problem with Falcon if SCSI DMA is not used... So I'm not sure how useful ST_POOL_SIZE tuning is for Falcon. Anyway TT kernel is using DMA and it might be affected by ST_POOL_SIZE value. I don't know if it's good safety measurement to leave it to 24 and pull changes also to NetBSD-4. What do others think ? -Tuomo