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    SubjectRe: 32-bit segfaults on x86_64 in recent mm kernels
    Andy Lutomirski wrote:
    > I've had segfaults in 32-bit emulation in recent (and not-so-recent) -mm
    > kernels on x86_64.
    >
    > 2.6.7-gentoo-r11 and 2.6.10-rc1 both work fine (even wine works for the
    > most part).
    >
    > 2.6.9-rc3-mm3 can't run wine -- it always segfaults. Other apps seem OK.
    >
    > 2.6.10-rc1-mm1 can't run anything -- even this segfaults (compiled with
    > both
    > 'gcc -o foo -m32 foo.c' and 'gcc -o foo -m32 -Wl,-zexecstack foo.c'):
    >
    > #include <stdio.h>
    >
    > int main()
    > {
    > printf("Hello %d\n", (int)(sizeof(int*)));
    > return 0;
    > }
    >
    > Sorry, no debug info, since debugging tools segfault too.
    >
    > This is my syslog for 2.6.10-rc1-mm1, with some userspace stuff stripped:

    s/2.6.10-rc1-mm1/2.6.10-rc1-mm3/g, obviously.

    >
    > Nov 7 08:37:41 luto Linux version 2.6.10-rc1-mm3

    etc.

    --Andy
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