Date: Sat, 23 Dec 2006 20:59:19 +0200 From: Erik Udo <erik.u@dnainternet.net> To: freebsd-hardware@freebsd.org Subject: Re: memory holes Message-ID: <458D7C87.2090106@dnainternet.net> In-Reply-To: <458D67CC.1050102@dnainternet.net> References: <458D36E4.9000900@dnainternet.net> <458D67CC.1050102@dnainternet.net>
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Ok... I got it solved by switching the memory modules of this computer to an another. Seemes like the motherboard-memory combination didn't work perfectly. It passed memtest afterwards, though i didn't run it for more than 5 minutes. Erik Udo wrote: > 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" >> > > > _______________________________________________ > 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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