Re: Address space limit?
Izumi Tsutsui <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.hp300,gmane.os.netbsd.ports.m68k |
|---|---|
| Message-ID | <[email protected]> |
christos@ wrote:
> 1. I think this might break existing binaries that use jemalloc because:
>
> bool
> pages_boot(void) {
> os_page = os_page_detect();
> if (os_page > PAGE) {
> boom.
Hmm. If the different PGSHIFT causes any problem,
it has already been broken because several m68k ports
have used 8kB page:
---
sys/arch/amiga/include/param.h:#define PGSHIFT 13 /* LOG2(NBPG) */
sys/arch/atari/include/param.h:#define PGSHIFT 13 /* LOG2(NBPG) */
sys/arch/cesfic/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
sys/arch/hp300/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
sys/arch/luna68k/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
sys/arch/mac68k/include/param.h:#define PGSHIFT 13 /* LOG2(NBPG) */
sys/arch/mvme68k/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
sys/arch/news68k/include/param.h:#define PGSHIFT 13 /* LOG2(NBPG) */
sys/arch/next68k/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
sys/arch/sun3/include/param.h:#define PGSHIFT 13 /* LOG2(NBPG) */
sys/arch/x68k/include/param.h:#define PGSHIFT 12 /* LOG2(NBPG) */
---
Maybe newer jemalloc should be fixed like sparc port,
which has both 4k (sun4c/sun4m) and 8k (sun4)?
> 2. There is a comment in vmparam.h about 4K pages..
Ah, it's leftover of hp300 copies.
It should be "4K or 8K page, chosen by PGSHIFT in param.h" or so..
---
Izumi Tsutsui