Date: Wed, 2 Jan 2002 09:00:03 -0800 (PST) From: Hiten Pandya <hitmaster2k@yahoo.com> To: freebsd-bugs@FreeBSD.org Subject: Re: i386/29679: FreeBSD and 4GB of ram not working Message-ID: <200201021700.g02H03s94947@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR i386/29679; it has been noted by GNATS. From: Hiten Pandya <hitmaster2k@yahoo.com> To: freebsd-gnats-submit@FreeBSD.org, sagi@webair.com Cc: Subject: Re: i386/29679: FreeBSD and 4GB of ram not working Date: Wed, 02 Jan 2002 16:54:41 +0000 hi, This issue has been discussed on the FreeBSD-Hackers mailing list, and possible fixes have been provided by various developers according to their situations with 4GB of RAM. The solution was discussed by Terry Lambert on the -hackers list. The specific thread to search for would be: 4G phisical memory kernel trap The reason is due to the limitations imposed in src/sys/i386/i386/machdep.c, which can be changed. I am giving a short guideline on how to acomplish this: 1) Try changing the KVA space in the src/sys/i386/i386/machdep.c, and recompile the kernel. 2) If that doesn't work, it could be that you are running out of page table pages (originially pointed out by Tim Wiess <twiess@ahaza.com>). The issue can be resolved by changing the NKPT #define in src/sys/i386/include/pmap.h to 64 and the KVA_PAGES #define to a multiple of 4 (default value is 256). This should resolve the issue. If there are no further more problems, then this PR can be gracefully closed. regards, - Hiten - <hiten@uk.FreeBSD.org> -- 1024 45:a5:9c:f2:fb:07:da:70:18:02:0b:f3:63:f1:7a:a6 hitenp@hpdi.ath.cx To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200201021700.g02H03s94947>