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    SubjectRe: fs/binfmt_aout.o, Error: suffix or operands invalid for `cmp' [was Re: 2.6.17-mm1]
    On Wed, Jun 21, 2006 at 02:34:50PM -0700, Andrew Morton wrote:
    > On Wed, 21 Jun 2006 23:16:17 +0200
    > Mattia Dongili <malattia@linux.it> wrote:
    >
    > > On Wed, Jun 21, 2006 at 01:42:15PM -0700, Andrew Morton wrote:
    > > > On Wed, 21 Jun 2006 21:39:32 +0200
    > > > Mattia Dongili <malattia@linux.it> wrote:
    > > >
    > > > > Thanks, this is fixed, but I have a new failure:
    > > > > CC [M] fs/xfs/support/move.o
    > > > > CC [M] fs/xfs/support/uuid.o
    > > > > LD [M] fs/xfs/xfs.o
    > > > > CC fs/dnotify.o
    > > > > CC fs/dcookies.o
    > > > > LD fs/built-in.o
    > > > > CC [M] fs/binfmt_aout.o
    > > > > {standard input}: Assembler messages:
    > > > > {standard input}:160: Error: suffix or operands invalid for `cmp'
    > > > > make[1]: *** [fs/binfmt_aout.o] Error 1
    > > > > make: *** [fs] Error 2
    > > >
    > > > what the heck? Can you do `make fs/binfmt_aout.s' then send the relevant
    > > > parts of that file?
    > >
    > > I can't really tell which is the relevant part other than line 160 :)
    > > Full file available here:
    > > http://oioio.altervista.org/linux/binfmt_aout.s
    > >
    >
    > It's complaining about this:
    >
    > #APP
    > addl %ecx,%eax ; sbbl %edx,%edx; cmpl %eax,$-1073741824; sbbl $0,%edx # dump.u_dsize, sum, flag,
    > #NO_APP
    >
    > from fs/binfmt_aout.c:154:
    >
    > if (!access_ok(VERIFY_READ, (void __user *)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
    > dump.u_dsize = 0;
    > if (!access_ok(VERIFY_READ, (void __user *)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
    > dump.u_ssize = 0;
    >
    > the offending code comes from __range_ok()

    thanks for the explanation!

    > Mad guess: does reverting
    > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm1/broken-out/i386-use-c-code-for-current_thread_info.patch
    > help?

    yes, I didn't build the full kernel but a simple

    make fs/binfmt_aout.o

    is finally successful.
    --
    mattia
    :wq!
    -
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