Post #160,645
6/20/04 4:17:17 PM
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>4GB Memory flag
I seem to recall a boot parameter for the kernel to see more than 4GB. I have 8. I can't find the flag. Any pointers?
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Post #160,646
6/20/04 4:19:43 PM
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Recompile with HIGHMEM.
Peter [link|http://www.debian.org|Shill For Hire] [link|http://www.kuro5hin.org|There is no K5 Cabal] [link|http://guildenstern.dyndns.org|Blog]
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Post #160,648
6/20/04 4:28:29 PM
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Using RH AS 3
I thought Highmem was the default. I'll doublecheck.
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Post #160,649
6/20/04 4:37:38 PM
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You'd think so, wouldn't you?
Especially given the "AS" moniker...
Peter [link|http://www.debian.org|Shill For Hire] [link|http://www.kuro5hin.org|There is no K5 Cabal] [link|http://guildenstern.dyndns.org|Blog]
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Post #160,650
6/20/04 4:57:37 PM
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Talks a lot about it
But I don't know if that was the DEFAULT kernel installed. Also, only mentions in in the x86 stuff, not the amd64. I guess becuase the AMD64 is native bigmem, while the x86 you gotta work at it.
[link|http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/as-x86/|http://www.redhat.co...ase-notes/as-x86/] Or: [link|http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/as-amd64/|http://www.redhat.co...e-notes/as-amd64/]
I didn't install it, my sysadmin did. This is a quad Opteron box, 2 CPUs installed for now (waiting for 1 to show up, and they have to be installed in pairs).
uname -a Linux mash.cc3.com 2.4.21-4.ELsmp #1 SMP Fri Oct 3 17:31:21 EDT 2003 i686 athlon i386 GNU/Linux
cat /proc/cpuinfo (dupe cpu info removed) processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 5 model name : 02/05 stepping : 8 cpu MHz : 2197.168 cache size : 1024 KB physical id : 0 siblings : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall mmxext lm 3dnowext 3dnow bogomips : 4390.91
[root@mash grub]# cat /proc/meminfo total: used: free: shared: buffers: cached: Mem: 4055252992 672514048 3382738944 0 135622656 292147200 Swap: 1073717248 0 1073717248 MemTotal: 3960208 kB MemFree: 3303456 kB MemShared: 0 kB Buffers: 132444 kB Cached: 285300 kB SwapCached: 0 kB Active: 220928 kB ActiveAnon: 14680 kB ActiveCache: 206248 kB Inact_dirty: 211824 kB Inact_laundry: 0 kB Inact_clean: 0 kB Inact_target: 86548 kB HighTotal: 3104744 kB HighFree: 2798620 kB LowTotal: 855464 kB LowFree: 504836 kB SwapTotal: 1048552 kB SwapFree: 1048552 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 4096 kB
How can I tell?
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Post #160,653
6/20/04 5:04:33 PM
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man free
Go read the manpage - however, you're only seeing 4GB.
Peter [link|http://www.debian.org|Shill For Hire] [link|http://www.kuro5hin.org|There is no K5 Cabal] [link|http://guildenstern.dyndns.org|Blog]
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Post #160,672
6/20/04 8:28:45 PM
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I believe it will see the 8GB
When you put in the other two Procs.
Many of the things I have read... say that there are 2 memory buses. If you have 2 Processor each bus is supported by one of the procs.
If you have a board for 4 procs, you need the 4 procs to see all the memory as they are on the other bank.
Now I have read that the 8 proc boards are similar, but are going to have 4 memory buses, 2 procs per bus. And are needed to see that memory...
But, I have also heard of CPU slots terminators for Intel Stuff, I wonder if that would apply for AMD stuff.
-- [link|mailto:greg@gregfolkert.net|greg], [link|http://www.iwethey.org/ed_curry|REMEMBER ED CURRY!] @ iwethey
Heard near the SCOG employee entry/exit way:
Security: We got another Mass Exodus Doorway Jam.
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Post #160,691
6/20/04 10:02:28 PM
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Don't think so
Each CPU board has slots for memory.
The rule is that you can only have one type of memory on each CPU/board. But you can interleave memory across multiple CPU boards. So you must have all identical memory on all boards, which it why we tossed the initial 2GB (512MB chips), leaving 4 in big chips.
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Post #160,712
6/21/04 2:04:12 AM
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I've got a Slot 1 CPU terminator board in my desk drawer.
It's basically a load of pullup resistors.
Peter [link|http://www.debian.org|Shill For Hire] [link|http://www.kuro5hin.org|There is no K5 Cabal] [link|http://guildenstern.dyndns.org|Blog]
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Post #160,651
6/20/04 5:00:10 PM
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was the default in SuSE 8.2
-drl
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Post #160,647
6/20/04 4:21:02 PM
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Hmm - howto
[link|http://www.syrlug.org/docs/HOWTO/BootPrompt-HOWTO-3.html#ss3.3|http://www.syrlug.or...OWTO-3.html#ss3.3]
Silly me. I missed it before.
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