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    SubjectRe: [PATCH] softlockup: fix potential race in hung_task when resetting timeout

    * Mandeep Singh Baines <msb@google.com> wrote:

    > Patch against tip/core/softlockup.
    >
    > ---
    >
    > A potential race exists if sysctl_hung_task_timeout_secs is reset to 0
    > while inside check_hung_uniterruptible_tasks(). If check_task() is
    > entered, a comparison with 0 will result in a false hung_task being
    > detected.
    >
    > If sysctl_hung_task_panic is set, the system will panic.
    >
    > Signed-off-by: Mandeep Singh Baines <msb@google.com>
    > ---
    > kernel/hung_task.c | 24 ++++++++++++++++--------
    > 1 files changed, 16 insertions(+), 8 deletions(-)

    Applied to tip/core/softlockup, thanks Mandeep!

    Ingo


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