On Wed, Jan 16, 2013 at 1:22 AM, <paul.sz...@sydney.edu.au> wrote: > Dear Sedat, > >> ... it really makes sense to switch to x86_64 >> (amd64) architecture when you have a modern computer. >> Switching makes even more sense when you have more than 4GiB RAM. > > You seem to say that one should switch to amd64 (if hardware allows), > even with less than 4GB RAM (where 32-bit non-PAE HIGHMEM4G kernel would > work fine), and that one should definitely switch with over 4GB RAM. > There would be no need or use for PAE kernels, which should be dropped. > > I think I agree. >
[ OK, you took the thread from LKML to the Debian bug, anyway ] Where I see problems is the fact that you are more or less "forced" to switch to 64-bit. Why? (Read my thoughts below.) The bigger problem I am seeing is that as most developers decided to go the 64-bit way the 32-bit path is no more tested correctly. When I insisted to run a 32-bit system I fell over so much UNTESTED software. I talked with a lot of developers around the Linux kernel and Debian world and those guys - if you ask them in private - would drop 32-bit entirely. To be honest - I am speaking of the x86 world and remember also darkly issues in early MULTIAAARGH support on Debian. ( As an example: Building a gcc upstream release tarball (unpatched!) in an multiarch environment. Look for my bug-reports if you are interested in. ) If there exist no more 32-bit x86 veterans... The world will turn around - approximately the same way and speed :-). So if you want to concentrate on working, make your decisions carefully! ( Noone pays you for fixing all the time your working OS - saying that as a longterm Debian/sid user. ) Just from my experiences. Regards, - Sedat - > Thanks, Paul > > Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/ > School of Mathematics and Statistics University of Sydney Australia > > > --- > > Quoting in full for the benefit of 695...@bugs.debian.org : > >> From sedat.di...@gmail.com Tue Jan 15 21:26:14 2013 >> Date: Tue, 15 Jan 2013 11:25:41 +0100 >> Subject: Re: [RFC] Reproducible OOM with just a few sleeps >> From: Sedat Dilek <sedat.di...@gmail.com> >> To: paul.sz...@sydney.edu.au, Paul Szabo <p...@maths.usyd.edu.au> >> Cc: LKML <linux-ker...@vger.kernel.org>, linux-mm <linux...@kvack.org>, >> Ben Hutchings <b...@decadent.org.uk> >> >> Hi Paul, >> >> I followed a bit the thread you started in [1]. >> >> As you might know i386 got eliminated in Linux-3.8. >> >> I had several discussions with the Debian kernel-team about the iN86 >> (N=4..6) and PAE kernel-flavours. >> On the one hand I can understand the reduction of linux-images >> especially for iN86. >> Even i486 is a bit unfirm as there is no much hardware around, but >> Debian will keep i486 for a while (release maintenance). >> >> Topic PAE: >> Unfortunately, I had a notebook with a Intel Centrino Banias CPU (no >> PAE) which should use the -486 kernel-flavour due to the Debian >> kernel-team. >> I played with some different kernel-setup which did not give me more >> benefit (openssl benchmarks etc.) >> The -686-pae kernel did run on my hardware, but as known with all the >> SMP-NO-OPs. >> >> Depending on the hardware, it really makes sense to switch to x86_64 >> (amd64) architecture when you have a modern computer. >> Switching makes even more sense when you have more than 4GiB RAM. >> IMHO using a -686-amd64 Debian kernel makes ZERO sense, real 64-Bit or die! >> >> I switched to 64-bit... and I switched from Debian/sid to >> Ubuntu/precise as well :-). >> ( NOTE: I am working here since April 2012 in a WUBI environment (no >> native Ubuntu Linux) :-). ) >> >> And I am building my kernels by myself. >> So I know very well whom to blame :-). >> >> Some last words: I had several fruitful or fruitless discussions with >> the Debian kernel-team, but I can confirm (with all my heart) this >> team makes a fantastic job. >> I can recommend you Ben's blog (recently I read a series about news in >> the Debian/wheezy kernel) if your world is Debian or Ubuntu (Debian != >> Ubuntu). >> >> Just my 0.02EUR (no British pound, here as well: when you are a member >> of the EU chose EUR not pound!). >> >> Regards, >> - Sedat - >> >> >> [1] http://marc.info/?t=135796172200001&r=1&w=2 -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/ca+iczuwmxsrkpqklocjfquxbd0kfv7spzewvb7pvhq6epwg...@mail.gmail.com
