Your message dated Sat, 02 Dec 2006 13:18:03 +0100 with message-id <200612021318.13682.elendil@planet.nl> and subject line Bug#383350: base-installer: support selection of 686-bigmem kernel if >3GB RAM has caused the attached Bug report to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what I am talking about this indicates a serious mail system misconfiguration somewhere. Please contact me immediately.) Debian bug tracking system administrator (administrator, Debian Bugs database)
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- To: submit@bugs.debian.org
- Subject: base-installer: support selection of 686-bigmem kernel if >3GB RAM
- From: Frans Pop <elendil@planet.nl>
- Date: Wed, 16 Aug 2006 19:31:34 +0200
- Message-id: <200608161931.35162.elendil@planet.nl>
Package: base-installer Severity: wishlist It would be nice if the installer would automatically select the new 686-bigmem flavor for systems with more than 3GB internal memory. The 3GB limit was suggested by Frederik Schueler.Attachment: pgptvWXuGlXxt.pgp
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--- Begin Message ---
- To: 383350-done@bugs.debian.org
- Subject: Bug#383350: base-installer: support selection of 686-bigmem kernel if >3GB RAM
- From: Frans Pop <elendil@planet.nl>
- Date: Sat, 02 Dec 2006 13:18:03 +0100
- Message-id: <200612021318.13682.elendil@planet.nl>
Turns out this is not really feasible. [13:04:02] <fjp> waldi: From which RAM size is -bigmem useful? fs suggested 3GB a while back. [13:05:56] <waldi> 3.5 [13:06:50] <fjp> Does that mean > 3500000 kB in /proc/meminfo? [13:09:32] <waldi> no [13:10:01] <fjp> Then what? [13:10:29] <fjp> (For MemTotal: line of course.) [13:11:17] <waldi> it means more than about 3.5GiB of memory as known by the bios, I don't think the kernel is able to show this [13:12:29] <fjp> Ah, because you need the -bigmem kernel before the kernel knows about the extra? Hmm. [13:12:51] <fjp> So, what is the largest size a normal 686 kernel will show? [13:13:08] <waldi> dunno [13:14:13] <waldi> i think it is something between 3.3 and 3.5 GiB, depending on the bios and reserved io address space [13:14:30] <fjp> Then using a (somewhat arbitrary) limit of 3GB would maybe make sense? I'd guess that having a -bigmem installed for that won't do any harm? [13:14:37] <waldi> no [13:14:42] <waldi> it is about 30% slower [13:15:14] <fjp> That's significant. OK. /me scratches -bigmem support in base-installer. [13:16:06] <waldi> you want to use 64bit kernels if ever possible insteadAttachment: pgpbGX1zeGA3J.pgp
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