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Date: Thu, 3 Aug 2006 17:04:46 +0200 (CEST) From: Krzysztof Oledzki <olel@....pl> To: Benjamin LaHaise <bcrl@...ck.org> cc: Arnd Hannemann <arnd@...dnet.de>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: problems with e1000 and jumboframes On Thu, 3 Aug 2006, Benjamin LaHaise wrote: > On Thu, Aug 03, 2006 at 04:49:15PM +0200, Krzysztof Oledzki wrote: >> With 1 GB of RAM full 1GB/3GB (CONFIG_VMSPLIT_3G_OPT) seems to be >> enough... > > Nope, you lose ~128MB of RAM for vmalloc space. No sure: Linux version 2.6.17.7 (root@r1) (gcc version 3.4.6) #1 SMP PREEMPT Fri Jul 28 18:05:40 CEST 2006 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 0000000000100000 - 000000003ffc0000 (usable) BIOS-e820: 000000003ffc0000 - 000000003ffcfc00 (ACPI data) BIOS-e820: 000000003ffcfc00 - 000000003ffff000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec90000 (reserved) BIOS-e820: 00000000fed00000 - 00000000fed00400 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved) BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved) 1023MB LOWMEM available. found SMP MP-table at 000fe710 On node 0 totalpages: 262080 DMA zone: 4096 pages, LIFO batch:0 Normal zone: 257984 pages, LIFO batch:31 (...) $ zcat /proc/config.gz |grep VMSPLIT # CONFIG_VMSPLIT_3G is not set CONFIG_VMSPLIT_3G_OPT=y # CONFIG_VMSPLIT_2G is not set # CONFIG_VMSPLIT_1G is not set Best regards, Krzysztof Olędzki
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