kernel BUG at kernel/workqueue

[Mulyadi Santosa]

Hi...

On Wed, May 25, 2011 at 16:32, sri <bskmohan at gmail.com> wrote:
> kernel BUG at kernel/workqueue.c:113!

from http://lxr.linux.no/#linux+v2.6.18/kernel/workqueue.c, lines around 113:
int fastcall queue_work(struct workqueue_struct *wq, struct work_struct *work)
 107{
 108        int ret = 0, cpu = get_cpu();
 109
 110        if (!test_and_set_bit(0, &work->pending)) {
 111                if (unlikely(is_single_threaded(wq)))
 112                        cpu = singlethread_cpu;
 113                BUG_ON(!list_empty(&work->entry));
 114                __queue_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
 115                ret = 1;
 116        }
 117        put_cpu();
 118        return ret;
 119}

So, if I interpret it correctly, that BUG_ON line means that if
work->entry is not empty or null, then it is a bug.

Not sure what causes that, but it could be simply due to failure of
"work" initialization (as work_struct) somewhere...


-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
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