Date: Sat, 23 Dec 2006 19:30:52 +0200 From: Erik Udo <erik.u@dnainternet.net> To: freebsd-hardware@freebsd.org Subject: Re: memory holes Message-ID: <458D67CC.1050102@dnainternet.net> In-Reply-To: <458D36E4.9000900@dnainternet.net> References: <458D36E4.9000900@dnainternet.net>
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OK. I've tested OpenBSD and NetBSD. Both find 512MB of ram, but.. NetBSD crashes after boot stage when it starts to load the kernel. (thanks NetBSD team for not building the kernel image with debugging symbols, but you did build it with DDB) OpenBSD finds 512MB of ram too, but... it wont find my hard disk, even thought it has wd0 as a hard disk in dmesh. To add to my previous post, i tested with 128MB PC100 + 32MB PC100. Both memory modules was found by FreeBSD and put to use. Which leads me to the conclusion: Why can't FreeBSD use PC133 memory when OpenBSD can? Did someone forget to port drivers for memory modules? :P Erik Udo wrote: > I upgraded my hardware and software yesturday, and for some reason, > FreeBSD only 'detects' 128MB of the memory, when the BIOS is clearly > seeing 512MB. OpenBSD also finds 512MB of memory. > > So i added one 128MB ECC memory. There was one 128MB PC100 and 256MB > PC133 memory before, and it worked fine on 6.2-PRERELASE. > > Now that i upgraded to 6.2-RC1, from 6.2-PRERELEASE and added the 128MB > memory to the 384MB i had, the kernel started giving me this error on > the first line of the kernel output: > "Too many holes in the physical address space, giving up" > > Now, i searched google for anything, and found this earlier thread: > http://www.mail-archive.com/freebsd-hardware@freebsd.org/msg01624.html > > I also found this: > http://lists.freebsd.org/pipermail/freebsd-hackers/2005-October/013932.html > > Like the previous post says, the memory was found after the increased > PHYSMAP_SIZE. I increased mine to 2*32, later 2*128. It didn't work. > > Also someone told me to add this line to the kernel config: > options MAXMEM=524288 > > That didn't work either. > > I also tried to toggle all the bios settings on the computer, i even > upgraded the bios. Nothing. > > Now i found out that OpenBSD sees 512MB of memory, so there must be some > kind of trick to make FreeBSD recognize that memory too. > > Here is some output of my verbose boot: > > with 512MB: > real memory = 134234112 (128 MB) > Physical memory chunk(s): > 0x0000000000001000 - 0x000000000009efff, 647168 bytes (158 pages) > 0x0000000000100000 - 0x00000000003fffff, 3145728 bytes (768 pages) > 0x0000000000c25000 - 0x0000000007d82fff, 118874112 bytes (29022 pages) > avail memory = 121798656 (116 MB) > > Anyone have any ideas? > > Thanks, > Erik > _______________________________________________ > freebsd-hardware@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hardware > To unsubscribe, send any mail to "freebsd-hardware-unsubscribe@freebsd.org" >
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