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由 Vitaliy Gusev 提交于
tcp_prune_queue() doesn't prune an out-of-order queue at all. Therefore sk_rmem_schedule() can fail but the out-of-order queue isn't pruned . This can lead to tcp deadlock state if the next two conditions are held: 1. There are a sequence hole between last received in order segment and segments enqueued to the out-of-order queue. 2. Size of all segments in the out-of-order queue is more than tcp_mem[2]. Signed-off-by: NVitaliy Gusev <vgusev@openvz.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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