Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Josh Paetzel <[EMAIL PROTECTED]> wrote: > > On Wednesday 10 January 2007 19:46, Jay Chandler wrote: > > > On a related note for this hardware platform, has anyone gotten > > past the "randomly decides not to reboot when told to" issue? > > Requires a hard shutdown by hand, as the console becomes completely > > non-responsive. > > I've heard of this problem, some people have it all the time and > others don't have it at all on the PE 1950. I suspect it has > something to do with the way Dell will occassionally change hardware > mid-run and not tell anyone. :) It's a bizarre timing problem involving the shutdown of drivers. We were trying to track it down, but any time we changed anything in the code, the problem disappeared (i.e. just adding a printf()). Our conclusion was that it was an extremely sensitive timing issue. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
On Wednesday 10 January 2007 19:46, Jay Chandler wrote: > > On a related note for this hardware platform, has anyone gotten > past the "randomly decides not to reboot when told to" issue? > Requires a hard shutdown by hand, as the console becomes completely > non-responsive. I've heard of this problem, some people have it all the time and others don't have it at all on the PE 1950. I suspect it has something to do with the way Dell will occassionally change hardware mid-run and not tell anyone. :) The solution is to enable the IPMI board and use that to reboot it. (Dell calls it a BMC but you can access it with standard IPMI utilities) -- Thanks, Josh Paetzel ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
On Thursday 11 January 2007 07:55, Jeff MacDonald wrote: > > > Well I hate when people say this, but I'm going to say it.. :) > > > > > > When I did a default install of ubuntu, it saw all 4 gigs > > > without a hitch. So does that mean it already includes PAE, or > > > something else ? > > > > One of those two. You sure you didn't install a 64-bit version > > of Ubuntu? > > Fairly sure :) > > > > Aside, I will read up on PAE. I'll read up about 64 bit as > > > well, I've been hesitant to make the jump only cause any word > > > of mouth i've heard said that it's not ready for production. > > > Maybe that's off base, it's only what "i've heard" > > > > We're deploying a lot of 64 bit stuff around here. Our > > experience has been that the OS is as solid on amd64 as it is on > > i386. Server applications are the same. There are, however, a > > lot of desktop applications that are still flaky on 64-bit -- > > mostly non-mainstream ones. We got in a crunch and had to > > reinstall a workstation back to i386 because of it, or I would > > have filed some bug reports. > > Yeah, that's likly true what you say about server vs desktop. I'm > going to slap a 64 bit copy on now and see how it does. > > Jeff. For what it's worth I've been running 6.1-R AMD64 on a PE 1950 very successfully as a web/mysql/mail/dns server. If you have the broadcom or intel NICs you're going to want to use the drivers from 6-STABLE or 6.2-RC2. Other than that it's been relatively painless. -- Thanks, Josh Paetzel ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Jeff MacDonald wrote: > When I did a default install of ubuntu, it saw all 4 gigs without a > hitch. So does that mean it already includes PAE, or something else ? Yes, AFAIK some newer Linuxes (and Windows SP2) include PAE by default. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
> Well I hate when people say this, but I'm going to say it.. :) > > When I did a default install of ubuntu, it saw all 4 gigs without a > hitch. So does that mean it already includes PAE, or something else ? One of those two. You sure you didn't install a 64-bit version of Ubuntu? Fairly sure :) > Aside, I will read up on PAE. I'll read up about 64 bit as well, I've > been hesitant to make the jump only cause any word of mouth i've heard > said that it's not ready for production. Maybe that's off base, it's > only what "i've heard" We're deploying a lot of 64 bit stuff around here. Our experience has been that the OS is as solid on amd64 as it is on i386. Server applications are the same. There are, however, a lot of desktop applications that are still flaky on 64-bit -- mostly non-mainstream ones. We got in a crunch and had to reinstall a workstation back to i386 because of it, or I would have filed some bug reports. Yeah, that's likly true what you say about server vs desktop. I'm going to slap a 64 bit copy on now and see how it does. Jeff. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
In response to "Jeff MacDonald" <[EMAIL PROTECTED]>: > > Jeff MacDonald wrote: > > > Hi, > > > > > > I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > > > It's configured with 4 gigs of ram. > > > > > > However when I boot i get the following right before DMESG > > > > > > 786432k above 4GB ignored > > > > > > Which is strange, but then dmesg shows this > > > > > > real memory = 3489300480 (3327 MB) > > > avail memory = 3414659072 (3256 MB) > > > > > > Soo I'm at a bit of a loss. > > > > You're using the 32-bit version, right? The design of x86 architecture > > (i.e. it's not FreeBSD's problem) is such that a part of memory > > addresses needs to be set aside for hardware uses, such as the PCI bus, > > AGP memory & others. This manifests as "holes" in memory that are not > > accessible to OS. > > > > There are two possible solutions: you may try compiling a 32-bit kernel > > with PAE (but not all drivers support PAE), or install the 64-bit > > version of FreeBSD. > > Well I hate when people say this, but I'm going to say it.. :) > > When I did a default install of ubuntu, it saw all 4 gigs without a > hitch. So does that mean it already includes PAE, or something else ? One of those two. You sure you didn't install a 64-bit version of Ubuntu? > Aside, I will read up on PAE. I'll read up about 64 bit as well, I've > been hesitant to make the jump only cause any word of mouth i've heard > said that it's not ready for production. Maybe that's off base, it's > only what "i've heard" We're deploying a lot of 64 bit stuff around here. Our experience has been that the OS is as solid on amd64 as it is on i386. Server applications are the same. There are, however, a lot of desktop applications that are still flaky on 64-bit -- mostly non-mainstream ones. We got in a crunch and had to reinstall a workstation back to i386 because of it, or I would have filed some bug reports. -- Bill Moran Collaborative Fusion Inc. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Jeff MacDonald wrote: > Hi, > > I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > It's configured with 4 gigs of ram. > > However when I boot i get the following right before DMESG > > 786432k above 4GB ignored > > Which is strange, but then dmesg shows this > > real memory = 3489300480 (3327 MB) > avail memory = 3414659072 (3256 MB) > > Soo I'm at a bit of a loss. You're using the 32-bit version, right? The design of x86 architecture (i.e. it's not FreeBSD's problem) is such that a part of memory addresses needs to be set aside for hardware uses, such as the PCI bus, AGP memory & others. This manifests as "holes" in memory that are not accessible to OS. There are two possible solutions: you may try compiling a 32-bit kernel with PAE (but not all drivers support PAE), or install the 64-bit version of FreeBSD. Well I hate when people say this, but I'm going to say it.. :) When I did a default install of ubuntu, it saw all 4 gigs without a hitch. So does that mean it already includes PAE, or something else ? Aside, I will read up on PAE. I'll read up about 64 bit as well, I've been hesitant to make the jump only cause any word of mouth i've heard said that it's not ready for production. Maybe that's off base, it's only what "i've heard" Thanks ! Jeff. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Dak Ghatikachalam wrote: if you calculate the 32bit addressing capability 2^32 -1 = 4294967296 - 1 = 4GB -1 you could counter I/O space, IRQ space for all the devices attached. I have heard something like parity interleave(I may be misspelling that word, but sounds close), you can knock off some more memory for this, and something like memory hole, you should knock off some more memory for this., sometimes video card also steal memory for acceleration, how much of it all depends. regards Dak On 1/10/07, Erik Trulsson <[EMAIL PROTECTED]> wrote: On Wed, Jan 10, 2007 at 02:42:59PM -0800, Jay Chandler wrote: > Jeff MacDonald wrote: > >Hi, > > > >I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > >It's configured with 4 gigs of ram. > > > >However when I boot i get the following right before DMESG > > > >786432k above 4GB ignored > > > >Which is strange, but then dmesg shows this > > > >real memory = 3489300480 (3327 MB) > >avail memory = 3414659072 (3256 MB) > > > >Soo I'm at a bit of a loss. > > > >Jeff. > > > Same platform, same error. Anyone else have a clue for me? > Part of the 32-bit address space is reserved for various I/O-devices. This means that a 32-bit OS will not be able to use all 4 GB of RAM but only a smaller amount (usually around 3.5 GB.) If you were to use a 64-bit OS it would probably be able to access all of the RAM if some of it is remapped to above the 4 GB line. (There is usually an option in the BIOS to do this remapping.) (This information is provided by most motherboard manufacturers and many computer manufacturers (including Dell) in some FAQ. ) -- Erik Trulsson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to " [EMAIL PROTECTED]" On a related note for this hardware platform, has anyone gotten past the "randomly decides not to reboot when told to" issue? Requires a hard shutdown by hand, as the console becomes completely non-responsive. -- Jay Chandler Network Administrator, Chapman University 714.628.7249 / [EMAIL PROTECTED] Today's Excuse: Our POP server was kidnapped by a weasel. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
if you calculate the 32bit addressing capability 2^32 -1 = 4294967296 - 1 = 4GB -1 you could counter I/O space, IRQ space for all the devices attached. I have heard something like parity interleave(I may be misspelling that word, but sounds close), you can knock off some more memory for this, and something like memory hole, you should knock off some more memory for this., sometimes video card also steal memory for acceleration, how much of it all depends. regards Dak On 1/10/07, Erik Trulsson <[EMAIL PROTECTED]> wrote: On Wed, Jan 10, 2007 at 02:42:59PM -0800, Jay Chandler wrote: > Jeff MacDonald wrote: > >Hi, > > > >I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > >It's configured with 4 gigs of ram. > > > >However when I boot i get the following right before DMESG > > > >786432k above 4GB ignored > > > >Which is strange, but then dmesg shows this > > > >real memory = 3489300480 (3327 MB) > >avail memory = 3414659072 (3256 MB) > > > >Soo I'm at a bit of a loss. > > > >Jeff. > > > Same platform, same error. Anyone else have a clue for me? > Part of the 32-bit address space is reserved for various I/O-devices. This means that a 32-bit OS will not be able to use all 4 GB of RAM but only a smaller amount (usually around 3.5 GB.) If you were to use a 64-bit OS it would probably be able to access all of the RAM if some of it is remapped to above the 4 GB line. (There is usually an option in the BIOS to do this remapping.) (This information is provided by most motherboard manufacturers and many computer manufacturers (including Dell) in some FAQ. ) -- Erik Trulsson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to " [EMAIL PROTECTED]" ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
On Wed, Jan 10, 2007 at 02:42:59PM -0800, Jay Chandler wrote: > Jeff MacDonald wrote: > >Hi, > > > >I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > >It's configured with 4 gigs of ram. > > > >However when I boot i get the following right before DMESG > > > >786432k above 4GB ignored > > > >Which is strange, but then dmesg shows this > > > >real memory = 3489300480 (3327 MB) > >avail memory = 3414659072 (3256 MB) > > > >Soo I'm at a bit of a loss. > > > >Jeff. > > > Same platform, same error. Anyone else have a clue for me? > Part of the 32-bit address space is reserved for various I/O-devices. This means that a 32-bit OS will not be able to use all 4 GB of RAM but only a smaller amount (usually around 3.5 GB.) If you were to use a 64-bit OS it would probably be able to access all of the RAM if some of it is remapped to above the 4 GB line. (There is usually an option in the BIOS to do this remapping.) (This information is provided by most motherboard manufacturers and many computer manufacturers (including Dell) in some FAQ. ) -- Erik Trulsson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
How about running top. do sysctl -a|grep shm or grep sem or all memory related configs and look into /etc/sysctl.conf may be something in configs is stealing away your 4G Apologies if you already knew this and if I am stating the obvious. regards Dak On 1/10/07, Jeff MacDonald <[EMAIL PROTECTED]> wrote: Hi, I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. It's configured with 4 gigs of ram. However when I boot i get the following right before DMESG 786432k above 4GB ignored Which is strange, but then dmesg shows this real memory = 3489300480 (3327 MB) avail memory = 3414659072 (3256 MB) Soo I'm at a bit of a loss. Jeff. -- Unless otherwise indicated, anything I write is either garnered from experience or pulled out of my ass, depending on situational needs.. Jeff MacDonald ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to " [EMAIL PROTECTED]" ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
On Jan 10, 2007, at 1:47 PM, Jeff MacDonald wrote: I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. It's configured with 4 gigs of ram. However when I boot i get the following right before DMESG 786432k above 4GB ignored Which is strange, but then dmesg shows this real memory = 3489300480 (3327 MB) avail memory = 3414659072 (3256 MB) Unless you compile a kernel with PAE, which extends the addressable physical memory, or have a EM64T capable CPU, the system is limited to only addressing 4GB of memory. However, the system also needs to make the various PCI devices and the AGP aperture accessible in memory space, so they typically reserve 512MB or 768MB at the top of the address space for that purpose; that memory is being remapped above 4GB, causing the message you see. It's probably reasonable to either live with it, or move 1GB to some other machine, if you can't run a 64-bit system or you have issues enabling PAE. -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Jeff MacDonald wrote: Hi, I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. It's configured with 4 gigs of ram. However when I boot i get the following right before DMESG 786432k above 4GB ignored Which is strange, but then dmesg shows this real memory = 3489300480 (3327 MB) avail memory = 3414659072 (3256 MB) Soo I'm at a bit of a loss. Jeff. Same platform, same error. Anyone else have a clue for me? -- Jay Chandler Network Administrator, Chapman University 714.628.7249 / [EMAIL PROTECTED] Today's Excuse: Our POP server was kidnapped by a weasel. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dell PE 1950 - Only seeing 3.2 gigs of ram
Jeff MacDonald wrote: > Hi, > > I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. > It's configured with 4 gigs of ram. > > However when I boot i get the following right before DMESG > > 786432k above 4GB ignored > > Which is strange, but then dmesg shows this > > real memory = 3489300480 (3327 MB) > avail memory = 3414659072 (3256 MB) > > Soo I'm at a bit of a loss. You're using the 32-bit version, right? The design of x86 architecture (i.e. it's not FreeBSD's problem) is such that a part of memory addresses needs to be set aside for hardware uses, such as the PCI bus, AGP memory & others. This manifests as "holes" in memory that are not accessible to OS. There are two possible solutions: you may try compiling a 32-bit kernel with PAE (but not all drivers support PAE), or install the 64-bit version of FreeBSD. signature.asc Description: OpenPGP digital signature
Dell PE 1950 - Only seeing 3.2 gigs of ram
Hi, I put a fresh install of 6.1-RELEASE on a dell poweredge 1950 server. It's configured with 4 gigs of ram. However when I boot i get the following right before DMESG 786432k above 4GB ignored Which is strange, but then dmesg shows this real memory = 3489300480 (3327 MB) avail memory = 3414659072 (3256 MB) Soo I'm at a bit of a loss. Jeff. -- Unless otherwise indicated, anything I write is either garnered from experience or pulled out of my ass, depending on situational needs.. Jeff MacDonald ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
