Dear All, I have a problem regarding RSS and PSS pages always showing zero for some PID. We are using customized kernel2.6.36 (arm with no swap). We are having a menu-screen application (current PID 1939) When I do cat /proc/1939/smaps we are getting "Rss", "Pss" page as always zero for some of the modules /dev/ump and /dev/mali. The output is as follows:- cat /proc/1936/smaps | grep -A 11 /dev/ump 43698000-43810000 rw-s 0000e000 00:11 6751 /dev/ump Size: 1504 kB Rss: 0 kB Pss: 0 kB Shared_Clean: 0 kB Shared_Dirty: 0 kB Private_Clean: 0 kB Private_Dirty: 0 kB Referenced: 0 kB Swap: 0 kB KernelPageSize: 4 kB MMUPageSize: 4 kB ---------------------------------------------------------------------- I wanted to understand why Rss and Pss pages information for only /dev/ump (similarly for /dev/mali) is not shown correctly by smaps. Where could be the problem and where I should debug? Any information on this will be a great help. Thanks, Regards, Pintu Kumar -- 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