lkml.org 
[lkml]   [2011]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: IGMP and rwlock: Dead ocurred again on TILEPro
    From
    From: Chris Metcalf <cmetcalf@tilera.com>
    Date: Thu, 17 Feb 2011 17:49:46 -0500

    > The fix is to disable interrupts for the arch_read_lock family of methods.

    How does that help handle the race when it happens between different
    cpus, instead of between IRQ and non-IRQ context on the same CPU?

    Why don't you just use the generic spinlock based rwlock code on Tile,
    since that is all that your atomic instructions can handle
    sufficiently?


    \
     
     \ /
      Last update: 2011-02-17 23:55    [W:0.042 / U:2.040 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site