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TCP has a transitional state when SACK is not in use during which this invariant is temporarily broken. Without SACK, tcp_clean_rtx_queue does not decrement sacked_out. Therefore calls to tcp_sync_left_out before sacked_out is again corrected by tcp_fastretrans_alert can trigger this trap as sacked_out still has couple of segments that are already out of window. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
1346 lines
38 KiB
1346 lines
38 KiB