Am 27.09.2013 11:22, schrieb Toralf Förster: > On 09/26/2013 12:35 PM, Richard Weinberger wrote: >> Am 26.09.2013 12:20, schrieb Ramkumar Ramachandra: >>> Richard Weinberger wrote: >>>> This patch is based on: https://lkml.org/lkml/2013/7/4/396 >>>> >>>> Cc: Ramkumar Ramachandra <artag...@gmail.com> >>>> Signed-off-by: Richard Weinberger <rich...@nod.at> >>>> --- >>>> arch/um/configs/i386_defconfig | 954 >>>> +++++++++++++++++++++++++++++++++++++++ >>>> arch/um/configs/x86_64_defconfig | 943 >>>> ++++++++++++++++++++++++++++++++++++++ >>>> 2 files changed, 1897 insertions(+) >>>> create mode 100644 arch/um/configs/i386_defconfig >>>> create mode 100644 arch/um/configs/x86_64_defconfig >>> >>> First, I'm pissed that the upstream tree doesn't build and run out of >>> the box months after I submitted a fix in July (and it's September >>> now). Fact that you dropped my sane patches aside and decided to write >>> a much larger series aside, user-mode Linux in upstream is broken. >>> This means that any user who does: >>> >>> $ ARCH=um make defconfig >>> $ ARCH=um make >>> >>> will end up with a *broken* Linux _today_. Unless the user is living >>> in the Stone Age with a 32-bit computer, this is what she will see >>> when she attempts to boot up Linux: > > :-{ > > Grmpf > > There are a lot of 32 bit user land linux installation (beside my own, > look at the x86 Gentoo world) in the wild - even running on modern 64bit > CPUs. The simple reason is that those installations run fine and the > performance "boost" of 64bit often isn't worth a new reinstallation.
You *can* of course run 32bit userland on UML. Just create a 32bit UML on x86_64. make defconfig ARCH=um SUBARCH=i386 make linux ARCH=um SUBARCH=i386 This will work on x86_64 and x86 hosts. Thanks, //richard ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
