lkml.org 
[lkml]   [2008]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] Fix the race between walk_tg_tree and sched_create_group

    * Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

    > On Wed, 2030-08-14 at 15:56 +0800, Zhang, Yanmin wrote:
    > > With 2.6.27-rc3, I hit a kernel panic when running volanoMark on my
    > > new x86_64 machine. I also hit it with other 2.6.27-rc kernels.
    > > See below log.
    > >
    > > Basically, function walk_tg_tree and sched_create_group have a race between
    > > accessing and initiating tg->children. Below patch fixes it by moving
    > > tg->children initiation to the front of linking tg->siblings to parent->children.
    > >
    > > Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
    >
    > Nice catch
    >
    > Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

    applied to tip/sched/urgent - thanks.

    Ingo


    \
     
     \ /
      Last update: 2008-08-14 10:49    [W:0.024 / U:0.248 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site