lkml.org 
[lkml]   [2007]   [Jun]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: bugs in __schedule()
    Satyam Sharma wrote:
    > Hi Gavin,
    >
    > On 6/26/07, gshan <gshan@alcatel-lucent.com> wrote:
    >> Here is the all output I have:
    >>
    >> # ifconfig mgt0 10.0.51.27
    >> BUG: scheduling while atomic: exe/0x00000101/752
    >
    > Yup, you can't sleep in taskets, they're atomic.
    >
    >> caller is schedule+0x4c/0xe4
    >> Call trace:
    >> [c02dc4dc] __schedule+0x654/0x788
    >> [c02dc6f4] schedule+0x4c/0xe4
    >> [c02dbe24] __compat_down+0xc8/0x12c
    >
    > So, you can't use / acquire semaphores in them. Use spinlocks.
    > If the shared data is also accessed from process context, use
    > spin_lock_bh() from the process context code.
    >
    > Satyam
    Thanks, Satyam. So I can replace the tasklet with kernel thread?
    -
    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: 2007-06-26 10:39    [W:0.024 / U:0.356 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site