Re: [gentoo-user] Gentoo not detecting full amount of memory
On Jul 24, 2005, at 3:46 PM, Mark Shields wrote: I recently got my home server back up and running after the power supply went out. I put some more memory in it, and it shows up fine as 1048576 KB (1 gigabyte). Gentoo, however, is only showing it as 904336 KB (883.14 MB) . I'm curious as to why it's not detecting 140.86 MB. Originally the server had a 512mb stick of generic PC2700 memory; I put 2 sticks of 256 MB (Mushkin, PC3200). The FSB is set to 133 mhz and cpu/mem ratio is set 1:1 (Athlon XP 2400+ for the processor). It's running in a dual channel memory config. [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 904336 kB MemFree: 91224 kB Any ideas? Hm, now this is a toughie. Barring any BIOS misconfigurations, I'd say that you might have a defective stick of RAM. Try booting another OS and see if it can detect the full gigabyte; if it happens then it's probably a hardware problem, not a Gentoo issue. -- Colin -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Sunday 24 07 2005 21:46 Mark Shields wrote: I put some more memory in it, and it shows up fine as 1048576 KB (1 gigabyte). Gentoo, however, is only showing it as 904336 KB (883.14 MB) . Did you enable high Memory Support in your kernel? HTH Kai Ole Schultz -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Mark Shields wrote: I recently got my home server back up and running after the power supply went out. I put some more memory in it, and it shows up fine as 1048576 KB (1 gigabyte). Gentoo, however, is only showing it as 904336 KB (883.14 MB) . I'm curious as to why it's not detecting 140.86 MB. Originally the server had a 512mb stick of generic PC2700 memory; I put 2 sticks of 256 MB (Mushkin, PC3200). The FSB is set to 133 mhz and cpu/mem ratio is set 1:1 (Athlon XP 2400+ for the processor). It's running in a dual channel memory config. [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 904336 kB MemFree: 91224 kB Any ideas? Hi, There's an option in kernel-config to enable the remaining memory you have. Check it. HTH. Rumen smime.p7s Description: S/MIME Cryptographic Signature
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Sun, 24 Jul 2005 15:46:10 -0400, Mark Shields wrote: I recently got my home server back up and running after the power supply went out. I put some more memory in it, and it shows up fine as 1048576 KB (1 gigabyte). Gentoo, however, is only showing it as 904336 KB (883.14 MB) . You need to set CONFIG_HIGHMEM4G=y in your kernel config. -- Neil Bothwick Bookmark - A means of returning to where you got lost last time. pgpyfmy52kW9M.pgp Description: PGP signature
Re: [gentoo-user] Gentoo not detecting full amount of memory
No I do not, as I was under the impression it's not required unless you have at least 4gb (sorry for the poor formatting, copying from putty/terminal to a text box doesn't format very well): Linux Kernel v2.6.11-gentoo-r6 Configuration ── ┌─── High Memory Support ┐ │ Use the arrow keys to navigate this window or press the hotkey of │ │ the item you wish to select followed by the SPACE BAR. Press│ │ ? for additional information about this option. │ │ ┌┐ │ │ │(X) off │ │ │ │( ) 4GB │ │ │ │( ) 64GB│ │ │ ││ │ │ ││ │ │ ││ │ │ └┘ │ ├┤ │ Select Help│ └┘ All 3 memory sticks appear fine. The motherboard is an A7N8X Deluxe, my main PC has an A7N8X-E Deluxe; both of them are capable of using 3gb of memory, 1gb per stick (3 slots for memory). The 2 x 256 mb sticks came from my main PC which I upgraded with 2 x 512mb sticks. The 512mb stick has been in use by the server for 4 months. I could understand if it was possible that they're incompatible, but then it wouldn't show a gig of RAM when the PC shows the bios screen. Regardless, I'll run memtest86 overnight to be sure. I'll also see what an ubuntu or knoppix livecd shows. On 7/24/05, Kai Ole Schultz [EMAIL PROTECTED] wrote: On Sunday 24 07 2005 21:46 Mark Shields wrote: I put some more memory in it, and it shows up fine as 1048576 KB (1 gigabyte). Gentoo, however, is only showing it as 904336 KB (883.14 MB) . Did you enable high Memory Support in your kernel? HTH Kai Ole Schultz -- gentoo-user@gentoo.org mailing list -- - Mark Shields -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Mark Shields wrote: No I do not, as I was under the impression it's not required unless you have at least 4gb (sorry for the poor formatting, copying from putty/terminal to a text box doesn't format very well): Actually, help says: CONFIG_NOHIGHMEM: If you are compiling a kernel which will never run on a machine with more than 1 Gigabyte total physical RAM, answer off here It looks to me, that up to 1GB (including) the answer should be off. But maybe boundary condition is not correctly defined, and for exactly 1GB it is necessary to select CONFIG_NOHIGHMEM = 4GB... Jarry -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Sunday 24 July 2005 22:21, Mark Shields wrote: No I do not, as I was under the impression it's not required unless you have at least 4gb (sorry for the poor formatting, copying from putty/terminal to a text box doesn't format very well): well the -mm kernel does not have this option anymore, but IIRC you need to select 4G support to enable the rest of your memory. Linux Kernel v2.6.11-gentoo-r6 Configuration ┌─── High Memory Support ┐ │ Use the arrow keys to navigate this window or press the hotkey of │ │ the item you wish to select followed by the SPACE BAR. Press│ │ ? for additional information about this option. │ │ ┌┐ │ │ │(X) off │ │ │ │( ) 4GB │ │ │ │( ) 64GB│ │ │ ││ │ │ ││ │ │ ││ │ │ └┘ │ ├┤ │ Select Help│ └┘ did you read the help asociated with each item? All 3 memory sticks appear fine. The motherboard is an A7N8X Deluxe, my main PC has an A7N8X-E Deluxe; both of them are capable of using 3gb of memory, 1gb per stick (3 slots for memory). The 2 x 256 mb sticks came from my main PC which I upgraded with 2 x 512mb sticks. The 512mb stick has been in use by the server for 4 months. I could understand if it was possible that they're incompatible, but then it wouldn't show a gig of RAM when the PC shows the bios screen. Regardless, I'll run memtest86 overnight to be sure. I'll also see what an ubuntu or knoppix livecd shows. I'm sure you will not see any hardware failures, it has something todo with the split user/kernel that you only see ~800MB of ram. enable highmem support for 4G and you will be able to use all of your memory. Rudmer -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
[EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. On 7/24/05, Rudmer van Dijk [EMAIL PROTECTED] wrote: On Sunday 24 July 2005 22:21, Mark Shields wrote: No I do not, as I was under the impression it's not required unless you have at least 4gb (sorry for the poor formatting, copying from putty/terminal to a text box doesn't format very well): well the -mm kernel does not have this option anymore, but IIRC you need to select 4G support to enable the rest of your memory. Linux Kernel v2.6.11-gentoo-r6 Configuration ┌─── High Memory Support ┐ │ Use the arrow keys to navigate this window or press the hotkey of │ │ the item you wish to select followed by the SPACE BAR. Press│ │ ? for additional information about this option. │ │ ┌┐ │ │ │(X) off │ │ │ │( ) 4GB │ │ │ │( ) 64GB│ │ │ ││ │ │ ││ │ │ ││ │ │ └┘ │ ├┤ │ Select Help│ └┘ did you read the help asociated with each item? All 3 memory sticks appear fine. The motherboard is an A7N8X Deluxe, my main PC has an A7N8X-E Deluxe; both of them are capable of using 3gb of memory, 1gb per stick (3 slots for memory). The 2 x 256 mb sticks came from my main PC which I upgraded with 2 x 512mb sticks. The 512mb stick has been in use by the server for 4 months. I could understand if it was possible that they're incompatible, but then it wouldn't show a gig of RAM when the PC shows the bios screen. Regardless, I'll run memtest86 overnight to be sure. I'll also see what an ubuntu or knoppix livecd shows. I'm sure you will not see any hardware failures, it has something todo with the split user/kernel that you only see ~800MB of ram. enable highmem support for 4G and you will be able to use all of your memory. Rudmer -- gentoo-user@gentoo.org mailing list -- - Mark Shields -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. I am pretty sure this is actually correct, and depends upon your BIOS options. All of those cache this or that ROM into memory options eat some some ram. You can disable those to try and get some more memory, but your system performance will probably suffer overall. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Jul 24, 2005, at 5:04 PM, Richard Fish wrote: Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. I am pretty sure this is actually correct, and depends upon your BIOS options. All of those cache this or that ROM into memory options eat some some ram. You can disable those to try and get some more memory, but your system performance will probably suffer overall. Modern operating system like Linux 2.6 and WinXP bypass the BIOS after the initial bootup, so caching the system/video BIOSes is just a waste of memory if you're using Gentoo. Caching video RAM was nice back in the days of ISA video cards, but with PCI/AGP/PCI-X video cards, shut off that option. -- Colin -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
I'm fairly sure those options are disabled by default (I think). No way to check from my work though (ssh-enabled BIOS, or BIOS configurable from linux, would be nice). On 7/24/05, Colin [EMAIL PROTECTED] wrote: snip Modern operating system like Linux 2.6 and WinXP bypass the BIOS after the initial bootup, so caching the system/video BIOSes is just a waste of memory if you're using Gentoo. Caching video RAM was nice back in the days of ISA video cards, but with PCI/AGP/PCI-X video cards, shut off that option. -- Colin -- gentoo-user@gentoo.org mailing list -- - Mark Shields -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
I'm fairly sure those options are disabled by default (I think). On 7/24/05, Mark Shields [EMAIL PROTECTED] wrote: 17 minutes ago, yes. On 7/24/05, Brett I. Holcomb [EMAIL PROTECTED] wrote: Did you build the kernel with high memory? snip -- - Mark Shields -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Sunday 24 July 2005 22:52, Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. that's better than here: rudmer:~ # cat /proc/meminfo | grep Mem MemTotal: 1026304 kB MemFree: 79152 kB that's almost 22MB... and that's what Richard already said probably a BIOS setting which you shouldn't try to disable to get a couple of MB's more. Rudmer -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Rudmer van Dijk wrote: On Sunday 24 July 2005 22:52, Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. Could it be shared ram taken for an on board graphics card? I know the one in this box used to be anywhere from 4MB to 64MB iirc - replaced it with a seperate board now. that's better than here: rudmer:~ # cat /proc/meminfo | grep Mem MemTotal: 1026304 kB MemFree: 79152 kB that's almost 22MB... and that's what Richard already said probably a BIOS setting which you shouldn't try to disable to get a couple of MB's more. Rudmer -- Tim Igoe [EMAIL PROTECTED] http://tim.igoe.me.uk - Personal Site http://tv.igoe.me.uk - UK TV Guide Computers are like Air-con, open windows and they stop working! signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] Gentoo not detecting full amount of memory
On Sun, 24 Jul 2005 22:38:24 +0200, Jarry wrote: Actually, help says: CONFIG_NOHIGHMEM: If you are compiling a kernel which will never run on a machine with more than 1 Gigabyte total physical RAM, answer off here It looks to me, that up to 1GB (including) the answer should be off. But maybe boundary condition is not correctly defined, and for exactly 1GB it is necessary to select CONFIG_NOHIGHMEM = 4GB... Keep reading, the next paragraph says If the machine has between 1 and 4 Gigabytes physical RAM, then answer 4GB here. The wording is ambiguous, both apply to a 1GB machine. The first should say 1GB or more instead of more than 1GB. -- Neil Bothwick Bugs are Sons of Glitches pgpCzfz3bOyTY.pgp Description: PGP signature
Re: [gentoo-user] Gentoo not detecting full amount of memory
Colin wrote: On Jul 24, 2005, at 5:04 PM, Richard Fish wrote: Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. I am pretty sure this is actually correct, and depends upon your BIOS options. All of those cache this or that ROM into memory options eat some some ram. You can disable those to try and get some more memory, but your system performance will probably suffer overall. Modern operating system like Linux 2.6 and WinXP bypass the BIOS after the initial bootup, so caching the system/video BIOSes is just a waste of memory if you're using Gentoo. Caching video RAM was nice back in the days of ISA video cards, but with PCI/AGP/PCI-X video cards, shut off that option. Just to point out, PCI Express is abbreviated PCIe. PCI-X is a different thing. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Hi, Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. That sounds perfectly normal. The kernel usually secures 10-20mb RAM for itself, which isn't available to the rest of the system. Daniel -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Gentoo not detecting full amount of memory
Ah, I wasn't aware, but that's a perfectly plausible explanation. On 7/24/05, Daniel Drake [EMAIL PROTECTED] wrote: Hi, Mark Shields wrote: [EMAIL PROTECTED] ~ $ cat /proc/meminfo | grep Mem MemTotal: 1034284 kB MemFree:953172 kB Thanks for the tip. But strangely, 12mb is still missing. That sounds perfectly normal. The kernel usually secures 10-20mb RAM for itself, which isn't available to the rest of the system. Daniel -- gentoo-user@gentoo.org mailing list -- - Mark Shields -- gentoo-user@gentoo.org mailing list
