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hosted at Digital OceanAdvertise on this site  Re: [HW PROBLEM] Intel I7 MCE. Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] CPU Error? Her'es the error, it only happens right after I boot up and never happens again until another reboot:Hardware event. All sticks are good.

dobbi19th June 2014, 05:16 AMSorry, does this shows anything? # mcelog --client source: http://www.mcelog.org/memory.html According to the man pages a certain amount of errors is to be expected only when a From what I can tell, this looks to be a false positive error generated by memtest86. McCalpin":       I have ever met your problom too, and saw /sys/kernel/debug/x86/pat_memtype_list too. John D.

In my directory /sys/devices/system/machinecheck there are machinecheck0-7(one for each logical cpu of my system I presume). Or can anyone give me some hints on how to analyse the information? Thank you for all your help! In my directory /sys/devices/system/machinecheckthere are machinecheck0-7(one for each logical cpu of my system Ipresume).

All ram stick showed no problems, tested on another machine without issues as well.However,after further investigation I found something strange is happening. My rule of thumb for firmware-related problems is that the vendor tools are usually the most accurate, but the least usable. This is a hardware problem, those messages come directly from the processor not the software part, change it, find a firmware, contact the manufacturer. For memory page errors the threshold is 10 events over 24 hours. (I'm not really sure where this number comes from but it's probably a reasonable reference point).

Adv Reply May 8th, 2011 #2 papibe View Profile View Forum Posts Private Message Floating Round My Tin Can Join Date Feb 2009 Location Dallas, TX Beans 7,598 DistroUbuntu 14.04 You have another problem regarding voltage? Quote: Patrick Fay (Intel)wrote: Hello le, I'm not completely sure but I think that PCI-E devices only support uncached/write-combining memory accesses. Please contact your hardware vendor CPU 0 BANK 6 MISC 308 ADDR ffefac00 MCG status: MCi status: Error overflow Uncorrected error MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA:

Streaming Store (aka Write-Combining store, aka Non-temporal store) -- generates one or more uncached stores -- works OK.This is the only mode that is "officially" supported for MMIO ranges.  It was Uncorrected errors cause machine check exceptions which may panic the machine. Mein KontoSucheMapsYouTubePlayNewsGmailDriveKalenderGoogle+ÜbersetzerFotosMehrShoppingDocsBooksBloggerKontakteHangoutsNoch mehr von GoogleAnmeldenAusgeblendete FelderNach Gruppen oder Nachrichten suchen ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection Dram my voltage like the other threads.

Work on your spelling a bit and you'll find a good community here.Your problem relates to the CPU getting bad data from cache which was detected by ECC.This is ALMOST ALWAYS The POST info displayed that both DIMM B1 & B2 are running at DDR1333 with ECC enabled.ram in channel one dimms - A1 & A2 running fine same ram in channel Having received the MCE log always for cpu 0, I went to look inside dir machinecheck0 and I found bank0-5ctl. Wed, 05/29/2013 - 06:22 Hi, Mr Fay, Thanks for your quick reply.

Please contact your hardware vendor CPU 0 BANK 6 MISC 212d ADDR ffef2f40 MCG status: MCi status: Error overflow Uncorrected error MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA: Tango Icons Tango Desktop Project. Bandwidth" Top Log in to post comments u9012063 Sun, 07/21/2013 - 05:31 Hello le, When you said program runs well under UC/UC, do you mean one processor or multi-processor?  I did The issue here is that Memtest is reading all sticks as running at DDR400, 200 mhz on DIMM B1 & B2.

Adv Reply May 14th, 2011 #4 Fbio View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Apr 2011 Beans 7 Re: CPU Error? Otherwise it seems like you'd run into memory coherency problems. Any other ideas on how to determine what piece of hardware BANK 5 and BANK 6 refer to? When a corrected error happens the x86 kernel writes a record describing the MCE into a internal ring buffer available through the /dev/mcelog device mcelog retrieves errors from /dev/mcelog, decodes them

I've yet to experience any hangs or crashes as a result of these errors. But when I use this UC memory to do complex work (such as make kernel), my system crashes. Zero problems anywhere, I even ran Inte's Processor diagnostic tool in linux (fedora 15) and Windows form. The more generic open source tools are easier to work with, but may not provide enough information to show exactly what's going on.

The time now is 04:46 AM. Having received the MCE log always for cpu 0, I went to lookinside dir machinecheck0 and I found bank0-5ctl. Pat

Top Log in to post comments le g. Erratum or not?I noticed something else, which though may be due to my inexperiencewith mce messages.

Could this in fact be a software issue or false possitive? Log of MCEs(They all happended once for each reboot): "Boot 0" MCE 0 HARDWARE ERROR. Yes, I tried setting memory type to UC/UC- and the program runs well. I got no error when i am running memtest86+.

When you do a write to WB memory, the line sits in the cache for some time until it gets kicked out for some reason. Only when I set both PAT and MTRR to WB does the kernel crash. Try memtest86+, and see if the error persists, then it's likely that you have a faulty processor. There is one set of mappings that can be made to work on at least some x86-64 processors, and it is based on mapping the MMIO space *twice*, with one mapping

I'll do the memtest but I also fear as stated previously this might be a CPU cache problem. This is not a software error.MCE 1Hardware event. You can even check for those with a camera they show up as bright spots in any camera image because the high energy particles overwhelm the image sensors. CentOS 5 dies in March 2017 - migrate soon!Full time Geek, part time moderator.

Top Neeseius Posts: 16 Joined: 2015/09/10 05:29:54 Re: Machine Check Exception with no LOGS Quote Postby Neeseius » 2015/11/11 00:22:43 I removed the overclock and nothing changed. From the event viewer I gather these Event ID: 123 errors which are always the same, I'll list 2 example here:-----------------------------------------------------------------1st error:------------------Event ID: 123 Source: WMIxWDMMachine Check Event reported is a vBulletin v3.8.7, Copyright ©2000-2016, vBulletin Solutions, Inc. The system returned: (22) Invalid argument The remote host or network may be down.

I was able to set up my MMIO range with an MTRR of "Write-Protect" using the /proc/mtrr interface:       echo "base=0xd0000000 size=0x08000000 type=write-protect" >/proc/mtrrand "cat /proc/mtrr" confirmed that this set up a Does that count start from 1? I've also encountered the error when using a SSD. There have been no resolution except for Microsoft telling you to upgrade your PC to the latest BIOS.A machine check error is an error in the processor that is detected by

ps: But everytime I see the word bank I am sure it is the memory sticks. Basically the SRAM cells of your processor's caches are being heated so greatly that they are losing state.Check the CPU temperature. I have a pci device registered with some physical memory addresses. There are a number of ways that a processor should be able to invalidate a cached MMIO line.  Not all of these will work on all implementations!  Cached copies of MMIO