On Tue, 11 Jul 2006 00:36:39 -0400
Shailabh Nagar <[email protected]> wrote:
> down_write(&listeners->sem);
> list_for_each_entry_safe(s, tmp, &listeners->list, list) {
> - ret = genlmsg_unicast(skb, s->pid);
> + skb_next = NULL;
> + if (!list_islast(&s->list, &listeners->list)) {
> + skb_next = skb_clone(skb_cur, GFP_KERNEL);
If we do a GFP_KERNEL allocation with this semaphore held, and the
oom-killer tries to kill something to satisfy the allocation, and the
killed task gets stuck on that semaphore, I wonder of the box locks up.
Probably it'll work out OK if the semaphore is taken after that task has
had some resources torn down.
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