lkml.org 
[lkml]   [2002]   [Jun]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    SubjectRe: [PATCH] CONFIG_NR_CPUS, redux
    On Tue, Jun 11, 2002 at 10:52:16AM -0700, Robert Love wrote:
    > Andrew has pointed out some architectures may need minor tweaks to work
    > with NR_CPUS < 32. He discovered and fixed a minor issue on i386...
    > other architectures, please verify non-standard options work. Also make

    On sparc, setting NR_CPUS to anything other than 32 with CONFIG_SMP set
    breaks. Simple, stupid patch is attached, but there's a more elegant fix to
    the actual functions abusing NR_CPUS that just seems much nicer ;-).

    And yes, I know, sparc on 2.5 is badly broken, but this just might help keep
    the broken-ness down a little bit.

    Regards,
    Rob Radez

    diff -Nru a/include/asm-sparc/smp.h b/include/asm-sparc/smp.h
    --- a/include/asm-sparc/smp.h Tue Jun 11 16:09:48 2002
    +++ b/include/asm-sparc/smp.h Tue Jun 11 16:09:48 2002
    @@ -31,7 +31,7 @@
    #include <asm/ptrace.h>
    #include <asm/asi.h>

    -extern struct prom_cpuinfo linux_cpus[NR_CPUS];
    +extern struct prom_cpuinfo linux_cpus[32];

    /* Per processor Sparc parameters we need. */

    -
    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: 2005-03-22 13:26    [W:3.615 / U:0.004 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site