lkml.org 
[lkml]   [2005]   [Jun]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: RT patch breaks X86_64 build

    * Michal Schmidt <xschmi00@stud.feec.vutbr.cz> wrote:

    > Ingo Molnar wrote:
    > >hm, one difference is that i'm running a 64-bit kernel but 32-bit
    > >userspace (FC3-ish).
    >
    > Yes, that's it! I've just successfully booted into 32-bit userspace (I
    > have a separate partition with old 32-bit Debian) with x86_64 kernel and
    > LATENCY_TRACE enabled. Everything seemed to work.
    > Then I mounted my normal root partition under /mnt/64 and tried
    > chroot /mnt/64
    > I got a SIGSEGV. Then I copied some simple binaries from /mnt/64/bin to
    > /root/test/bin and some necessary libraries to /root/test/lib and did
    > chroot /root/test
    > I could run 64-bit sash, ls, cat, date, mkdir - it worked. 64-bit bash
    > however segfaulted.

    perhaps my mcount stubs dont save enough registers, leading to register
    corruption on 64-bit userspace? In that case i'd expect more breakage
    though, so maybe it's something more subtle.

    Ingo
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-06-03 07:23    [W:0.020 / U:30.116 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site