On Tue, Feb 7, 2012 at 9:27 PM, Mel Gorman <mgorman@xxxxxxx> wrote: > On Tue, Feb 07, 2012 at 08:45:18PM +0800, Hillf Danton wrote: >> If it is feasible to bypass hang by tuning min_mem_kbytes, > > No. Increasing or descreasing min_free_kbytes changes the timing but it > will still hang. > >> things may >> become simpler if NICs are also tagged. > > That would mean making changes to every driver and they do not necessarily > know what higher level protocol like TCP they are transmitting. How is > that simpler? What is the benefit? > The benefit is to avoid allocating sock buffer in softirq by recycling, then the changes in VM core maybe less. Thanks Hillf -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>