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Topic: MTRR

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	MTRR - Genetics Home Reference
		homocystinuria - caused by mutations in the MTRR gene
		A specific version (variant) of the MTRR gene may be associated with an increased risk of having a child with spina bifida (a birth defect that affects the spinal cord) or Down syndrome (a condition characterized by mental retardation and associated health problems).
		The MTRR gene is located on the short (p) arm of chromosome 5 between positions 15.3 and 15.2.
	ghr.nlm.nih.gov /gene=mtrr (632 words)

	[Beowulf] Tyan mobo and /proc/mtrr
		mtrr values are supposed to be set by the bios; the OS certainly can change them, but doesn't have to.
		I forget for sure, but suspect that in the absence of an mtrr, the mem-mapped video area on the third machine would default to write-through or -combining.
		I would guess that mtrr's on the framebuffer were less relevant for a number of years (using a video card's hw acceleration obviates the need for the host to directly manipulate the pixels).
	www.beowulf.org /archive/2004-October/010971.html (469 words)

	Characterization of the Multiple Transferable Resistance Repressor, MtrR, from Neisseria gonorrhoeae -- Hoffmann et al. ...
		MtrR represses expression of the Neisseria gonorrhoeae mtrCDE
		The dimer concentrations of MtrR and QacR in all spectral
		The MtrR repressor binds the DNA sequence between the mtrR and mtrC genes of Neisseria gonorrhoeae.
	jb.asm.org /cgi/content/full/187/14/5008 (2702 words)

	The Montreal Terminal Railroad
		MTRR formed by merger of Montreal and Southern Railway with PVandT and LTandL terminal services.
		MTRR 1-4, 700-hp steeplecabs, purchased for freight operations.
		MTRR 1-4 sold; PVandT class A's used for freight operations.
	www.pell.portland.or.us /~orc/PV/MTRR.html (307 words)

	Overexpression of the MtrC-MtrD-MtrE Efflux Pump Due to an mtrR Mutation Is Required for Chromosomally Mediated ...
		Overexpression of the MtrC-MtrD-MtrE Efflux Pump Due to an mtrR Mutation Is Required for Chromosomally Mediated Penicillin Resistance in Neisseria gonorrhoeae -- Veal et al.
		Presence of an mtrR mutation in strain FA6140.
		Missense mutations that alter the DNA-binding domain of the MtrR protein occur frequently in rectal isolates of Neisseria gonorrhoeae that are resistant to faecal lipids.
	jb.asm.org /cgi/content/full/184/20/5619 (3673 words)

	Gmane -- Mail To News And Back Again (Site not responding. Last check: 2007-10-13)
		Hi, There has been some discuss about solving the SMP MTRR suspend/resume breakage, but I didn't find a patch for it.
		The basic idea is moving mtrr initializing into cpu_identify for all APs (so it works for cpu hotplug).
		This routine is called in two cases: 1.very earily time + * of software resume, when there absolutely isn't mtrr entry changes; + * 2.cpu hotadd time.
	article.gmane.org /gmane.linux.kernel/314062 (251 words)

	Polymorphisms of Methionine Synthase and Methionine Synthase Reductase and Risk of Squamous Cell Carcinoma of the Head ...
		genotyped the MTR A2756G and MTRR G66A polymorphisms.
		MTRR genes are involved in the same pathway of remethylation
		The methionine synthase reductase (MTRR) A66G polymorphism is a novel genetic determinant of plasma homocysteine concentrations.
	cebp.aacrjournals.org /cgi/content/full/14/5/1188 (3902 words)

	Decreased Azithromycin Susceptibility of Neisseria gonorrhoeae Due to mtrR Mutations -- Zarantonelli et al. 43 (10): ...
		Decreased Azithromycin Susceptibility of Neisseria gonorrhoeae Due to mtrR Mutations -- Zarantonelli et al.
		Shown is the nucleotide sequence information of the mtrR promoter region from strains FA19 and KH15 and five clinical isolates that display decreased levels of azithromycin susceptibility.
		Also presented is the Gly-45 (G)-to-Asp-45 (D) replacement in the helix-turn-helix motif of the MtrR proteins (210 amino acids in length) of strains 9608, 9633, 9638, and 9642.
	aac.asm.org /cgi/content/full/43/10/2468 (3158 words)

	[PATCH] remove dead cyrix/centaur mtrr init code \| Linux \| Kernel
		One such case is the mtrr code, where struct mtrr_ops has an
		to the cyrix and centaur mtrr init routines inserted.
		> to the cyrix and centaur mtrr init routines inserted.
	www.gossamer-threads.com /lists/linux/kernel/519222 (2622 words)

	mtrr Alignment Messages - LinuxQuestions.org
		mtrr: base(0xf0020000) is not aligned on a size(0x800000) boundary
		and all I can think of is mtrr may not be enabled in your kernel.............
		Well if mtrr support was not available there would be nothing in /proc/mtrr.
	www.linuxquestions.org /questions/showthread.php?t=231247 (360 words)

	Urgetn Help needed - That Computer Guy's Help Forum
		MTRR 1 Range 0 : 00080000-00083FFF (512kB-528kB) WB rdMem wrMem
		MTRR 1 Range 1 : 00084000-00087FFF (528kB-544kB) WB rdMem wrMem
		MTRR 1 Range 4 : 00090000-00093FFF (576kB-592kB) WB rdMem wrMem
	forums.thatcomputerguy.us /index.php?showtopic=834 (3298 words)

	Matrox Technical Support Forums :: View topic - Parhelia/P-Series: MTRR workaround script (Site not responding. Last check: 2007-10-13)
		I can't see any speed improvement by correcting the mtrr setting (and they are defently wrong).
		When they have focus, they have a different text color, and without the MTRR fix I got some annoying flicker, with the MTRR fix it's perfect.
		Some people might not notice it if their MTRR are already properly setup.
	forum.matrox.com /mga/viewtopic.php?t=8281 (2256 words)

	fglrx crashing with large RAM (4GB): How I fixed my MTRR - Rage3D Discussion Area
		There is not a lot of MTRR documentation out there (I even read the source code from the Linux Kernel), so I thought I would post what I came up with in the hopes it might help others.
		- You will not see an MTRR region for each device - a region can cover some or all of your memory address space, and overlap and be used by several devices, thoughall those devices must support that MTRR region's cache policy.
		I don't know what my MTRR table looked like before I upgraded my RAM, but looking at the output of the "dmesg" command, the fglrx driver was now trying to create a write-combining MTRR region entry where an uncachable one already existed.
	www.rage3d.com /board/showthread.php?t=33821469 (1089 words)

	2100+ reads as a 667 - AMD Forums (Site not responding. Last check: 2007-10-13)
		MTRR 1 Range 0 : 00080000-00083FFF (512kB-528kB) WB rdIO wrIO
		MTRR 1 Range 1 : 00084000-00087FFF (528kB-544kB) WB rdIO wrIO
		MTRR 1 Range 4 : 00090000-00093FFF (576kB-592kB) WB rdIO wrIO
	forums.amd.com /index.php?showtopic=19694 (1482 words)

	Fix for mtrr "overlapping" error. - Rage3D Discussion Area
		I removed the section where you "manually" inserted the right mtrr value, since it was more difficult than other solutions.
		This post were written as a work-around to the problems with MTRR overlaping errors.
		You should be fine with mtrr, it reports your full vid-mem.
	www.rage3d.com /board/showthread.php?t=33736241&highlight=mtrr+fix (2411 words)

	Bug 17644 - mtrr: no more MTRRs available (Site not responding. Last check: 2007-10-13)
		If the fglrx driver is now working, wrap all those commands up in a boot script: sudo cat </etc/init.d/fix_mtrr #!/bin/sh # Combine all main memory mtrr ranges into a single register echo "disable=0" >
		I'd love to know where all these bizarro mtrr settings originate from.
		I'm planning on doing a clean install sometime in the next couple weeks though, so I'll give this a try then, to see if I can use both chips again.
	bugzilla.ubuntu.com /show_bug.cgi?id=17644 (317 words)

	HP Pavillion ze2308wm Notebook Computer with linux : Tech Observer
		MTRR - Memory Type Range Registers : Yes
		MTRR 3 Range 0 : 000C0000-000C0FFF (768kB-772kB) WP rdIO wrIO
		MTRR 4 Range 0 : 000C8000-000C8FFF (800kB-804kB) WP rdIO wrIO
	kennethhunt.com /archives/001677.html (2354 words)

	ESO. Fuentes. Linux/arch/i386/kernel/mtrr.c (Site not responding. Last check: 2007-10-13)
		Differentiate different MTRR register classes for BIOS fixup.
		Temporarily disable AMD support now MTRR capability flag is set.
		"mtrr: base(0x%lx000) is not aligned on a size(0x%lx000) boundary\n"
	futura.disca.upv.es /lxr/http/source/arch/i386/kernel/mtrr.c (5387 words)

	MTRR and 71.67 - nV News Forums
		We are using motherboard Intel 7505vb2, two Intel Xeon processors 3GHz and NVIDIA QUADRO FX 3000 graphics board.
		Beginning with the 1.0-7167 driver release, the NVIDIA Linux graphics driver no longer uses MTRR's to specify cache attributes; instead, it uses the PAT and per-page attributes, if available (if PAT support is unavailable, the driver falls backs to MTRR's).
		Your problem is likely caused by a known performance problem with 1.0-7167 in combination with AGPGART; please upgrade to 1.0-7174.
	www.nvnews.net /vbulletin/showthread.php?p=579687 (545 words)

	FedoraForum.org - xorg optimization and mtrr
		I am not sure but I thought mtrr was somethnig to do with kernel
		How would setting up mtrr be a driver issue?
		The nVidia driver -used- to use MTRR and set them by hand using the BIOS
	forums.fedoraforum.org /showthread.php?t=109376&goto=newpost (2395 words)

	MTRR and SMP
		> The mtrr option (version 1.35a) is activated in the kernel.
		> But dmesg says that : > mtrr : your cpus had inconsistent variable settings > mtrr : probably your bios does not setup all cpus.
		Does the activated 1.35a mtrr option nevertheless > correct this "feature" of the bios ?
	www.beowulf.org /archive/2000-October/000947.html (240 words)

	Xorg , nv driver and mtrr - nV News Forums
		What is that "second" memory with size 16 MB and base addr at e2000000 ?
		The Xorg.0.log says something about MMIO registers at this base address.
		Your guess is right I think, it is a region used for I/O and it should be uncacheable.
	www.nvnews.net /vbulletin/showthread.php?t=35938 (278 words)

	[PATCH]MTRR suspend/resume cleanup \| Linux \| Kernel
		The basic idea is moving mtrr initializing into cpu_identify for all APs
		+/* The suspend/resume methods are only for CPU without MTRR.
		implements mtrr save and restore as part of the cpu state save/restore.
	www.gossamer-threads.com /lists/linux/kernel/550942 (1798 words)

	Radeon 9800 XT 3D Accelleration - sysadminforum
		Nov 30 20:18:24 user kernel: mtrr: no MTRR for f0800000,100000 found
		Nov 30 20:18:24 user kernel: mtrr: no MTRR for f0900000,40000 found
		Nov 30 20:18:24 user kernel: mtrr: no MTRR for f0940000,10000 found
	sysadminforum.com /t1697.html (2226 words)

	[No title]
		+ Differentiate different MTRR register classes for BIOS fixup.
		+ Temporarily disable AMD support now MTRR capability flag is set.
		+ Rearrange switch() statements so the driver accomodates to + the fact that the AMD Athlon handles its MTRRs the same way + as Intel does.
	www.hansenpartnership.com /voyager/files/split-combine-2.5.6.diff (6242 words)

	[No title]
		Number of Reporting Banks: 4 bank(s) Extended Machine Check Support:Yes Number of Extended Reporting B:12 bank(s)
		MTRR 0: 00000000-7FFFFFFF (0MB-2048MB) WB MTRR 1: 7FF00000-7FFFFFFF (2047MB-2048MB) WT
		PAT 0: WB PAT 1: WC PAT 2: UC- PAT 3: UC PAT 4: WB PAT 5: WC PAT 6: UC- PAT 7: UC
	www.ees.net.nz /sc/3SystemReport.txt (4553 words)

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