Can the kernel reserve memory at boot time ?
in [Win32 Kernel]
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From: Ryu on 31 Jan 2010 12:40 Hello, I have a bad memory (from 589MB to 605MB according to memtest86+) I'd like to know if the kernel can reserve this portion of memory; then it will not be used anymore ? Is it possible under Windows 7 ? I Found that the Linux kernel have the parameter 'memmap' for this ! Unfortunately I can't find the same thing for Windows :( Any ideas to solve my memory corruption problem ?
From: Alexander Grigoriev on 31 Jan 2010 13:24 If some of the memory went sour, there is danger that more of it will. Just replace the module, it's only $50 or so. "Ryu" <ryu(a)hotmail.com> wrote in message news:4b65c07e$0$22030$426a74cc(a)news.free.fr... > Hello, > I have a bad memory (from 589MB to 605MB according to memtest86+) > I'd like to know if the kernel can reserve this portion of memory; then it > will not be used anymore ? > Is it possible under Windows 7 ? > > I Found that the Linux kernel have the parameter 'memmap' for this ! > Unfortunately I can't find the same thing for Windows :( > > Any ideas to solve my memory corruption problem ?
From: Ryu on 31 Jan 2010 14:20 Yes, but I'd like to find a software solution. The memory bank is a 1GB DDR1; old and expansive now ! I'm a bit surprised that the windows kernel has no solution to protect the system from such problem (I've tryed the memory checking program from Windows, but it just report problem and bring no solution) With msconfig, it's possible to set the maximum use of memory, but not a specific zone :( I'm wondering if the kernel has an advanced malloc function ? The Sun, 31 Jan 2010 10:24:57 -0800, Alexander Grigoriev wrote : > If some of the memory went sour, there is danger that more of it will. > Just replace the module, it's only > $50 or so. > > "Ryu" <ryu(a)hotmail.com> wrote in message > news:4b65c07e$0$22030$426a74cc(a)news.free.fr... >> Hello, >> I have a bad memory (from 589MB to 605MB according to memtest86+) I'd >> like to know if the kernel can reserve this portion of memory; then it >> will not be used anymore ? >> Is it possible under Windows 7 ? >> >> I Found that the Linux kernel have the parameter 'memmap' for this ! >> Unfortunately I can't find the same thing for Windows :( >> >> Any ideas to solve my memory corruption problem ?
From: Alexander Grigoriev on 31 Jan 2010 16:23 Windows kernel has no such option because there is no value in the option. It's palliative treatment; your memory may fail on you in other places. Just bite the bullet and replace the memory. Or just set maxmem. See if your BIOS can exclude some memory. Windows gets memory map from BIOS. Oh, and I just checked on eBay that you can get DDR1 1GB for $25 or about that. "Ryu" <ryu(a)hotmail.com> wrote in message news:4b65d7e7$0$7053$426a74cc(a)news.free.fr... > Yes, but I'd like to find a software solution. The memory bank is a 1GB > DDR1; old and expansive now ! > I'm a bit surprised that the windows kernel has no solution to protect the > system from such problem (I've tryed the memory checking program from > Windows, but it just report problem and bring no solution) > With msconfig, it's possible to set the maximum use of memory, but not a > specific zone :( > > I'm wondering if the kernel has an advanced malloc function ? > > > > The Sun, 31 Jan 2010 10:24:57 -0800, Alexander Grigoriev wrote : > >> If some of the memory went sour, there is danger that more of it will. >> Just replace the module, it's only >> $50 or so. >> >> "Ryu" <ryu(a)hotmail.com> wrote in message >> news:4b65c07e$0$22030$426a74cc(a)news.free.fr... >>> Hello, >>> I have a bad memory (from 589MB to 605MB according to memtest86+) I'd >>> like to know if the kernel can reserve this portion of memory; then it >>> will not be used anymore ? >>> Is it possible under Windows 7 ? >>> >>> I Found that the Linux kernel have the parameter 'memmap' for this ! >>> Unfortunately I can't find the same thing for Windows :( >>> >>> Any ideas to solve my memory corruption problem ? >
From: Don Burn on 31 Jan 2010 18:00 Actually, it does have the option. Unfortunately, it is not documented. There are calls MmMarkPhysicalMemoryAsBad and MmMarkPhysicalMemoryAsGood to do this, which have been used for fault tolerant environments. I've never seen any doc's that tell you how to use them, but they are in there, they were even in the Windows XP DDK includes. I agree with Alexander in this case the right thing to do is replace the memory. -- Don Burn (MVP, Windows DKD) Windows Filesystem and Driver Consulting Website: http://www.windrvr.com Blog: http://msmvps.com/blogs/WinDrvr "Alexander Grigoriev" <alegr(a)earthlink.net> wrote in message news:OTnlWuroKHA.4628(a)TK2MSFTNGP06.phx.gbl... > Windows kernel has no such option because there is no value in the option. > It's palliative treatment; your memory may fail on you in other places. > Just bite the bullet and replace the memory. Or just set maxmem. > > See if your BIOS can exclude some memory. Windows gets memory map from > BIOS. > > Oh, and I just checked on eBay that you can get DDR1 1GB for $25 or about > that. > > "Ryu" <ryu(a)hotmail.com> wrote in message > news:4b65d7e7$0$7053$426a74cc(a)news.free.fr... >> Yes, but I'd like to find a software solution. The memory bank is a 1GB >> DDR1; old and expansive now ! >> I'm a bit surprised that the windows kernel has no solution to protect >> the >> system from such problem (I've tryed the memory checking program from >> Windows, but it just report problem and bring no solution) >> With msconfig, it's possible to set the maximum use of memory, but not a >> specific zone :( >> >> I'm wondering if the kernel has an advanced malloc function ? >> >> >> >> The Sun, 31 Jan 2010 10:24:57 -0800, Alexander Grigoriev wrote : >> >>> If some of the memory went sour, there is danger that more of it will. >>> Just replace the module, it's only >>> $50 or so. >>> >>> "Ryu" <ryu(a)hotmail.com> wrote in message >>> news:4b65c07e$0$22030$426a74cc(a)news.free.fr... >>>> Hello, >>>> I have a bad memory (from 589MB to 605MB according to memtest86+) I'd >>>> like to know if the kernel can reserve this portion of memory; then it >>>> will not be used anymore ? >>>> Is it possible under Windows 7 ? >>>> >>>> I Found that the Linux kernel have the parameter 'memmap' for this ! >>>> Unfortunately I can't find the same thing for Windows :( >>>> >>>> Any ideas to solve my memory corruption problem ? >> > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 4822 (20100131) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > __________ Information from ESET NOD32 Antivirus, version of virus signature database 4822 (20100131) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
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