lkml.org 
[lkml]   [2000]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] proposed scheduler enhancements and fixes
    Linus Torvalds wrote:
    >
    > The deadlock is due to priority inversion, where a "idle-priority" task
    > gets a resource (say the directory semaphore), goes to sleep, and never
    > wakes up again because there is some slightly more important process
    > running all the time.
    >
    What about using SCHED_IDLE only for processes that are in user space?
    e.g. ret_with_reschedule calls a special "schedule_with_SCHED_IDLE()".
    As soon as a thread runs within kernel space, we ignore SCHED_IDLE.

    --
    Manfred

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:56    [W:4.183 / U:0.196 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site