I had the same symptoms with a runaway openjdk7 program, where killing/restarting the program on a regular basis would keep it from happening... but I never caught a high usage on swap.
On Wed, Feb 26, 2014 at 12:29 AM, lhmwzy <[email protected]> wrote: > It has serveral times run into no responese problem. > the console messages are: > cache_lock blocked on 0xffffffe085065430 80000001 "blocklist.RSA-2048" > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > swap_pager: indefinite wait buffer: offset: 416837632,size:4096 > ..... > > nodump and can't login in through ssh or console. > > So is this issue related to swap useage? > > > 2014-02-26 10:53 GMT+08:00 Justin Sherrill <[email protected]>: > >> Wait, that 42M used is after some time? That's <1% - normal. I assume >> it's being indexed there. I've never had exactly 0% swap usage, and that >> low indicator isn't a sign of anything to worry about. >> >> >> On Tue, Feb 25, 2014 at 9:29 PM, lhmwzy <[email protected]> wrote: >> >>> The only program I run is buildworld and buildkerenl,nothing else. >>> When buildworld and buildkerenl finished,the swap won't be released >>> even several days have passed. >>> >>> >>> 2014-02-26 10:21 GMT+08:00 Justin Sherrill <[email protected]>: >>> >>>> If swap usage is growing, some program is running that is eating up >>>> more memory than you have physically available. It won't be reclaimed by >>>> the operating system unless the program using that memory releases it. The >>>> question is, what program are you running that is so memory-hungry? >>>> >>>> >>>> On Tue, Feb 25, 2014 at 7:58 PM, lhmwzy <[email protected]> wrote: >>>> >>>>> I just have a question >>>>> When swap space is used more and more, will the system automatically >>>>> free up the used the swap space as time go on? >>>>> If yes,when and how. >>>>> >>>>> top show as fllowing: >>>>> >>>>> Memory: 645M Active, 768M Inact, 378M Wired, 13M Cache, 211M Buf, 153M >>>>> Free >>>>> Swap: 4096M Total, 42M Used, 4054M Free, 1% Inuse >>>>> >>>>> the swap used space is growing larger and larger. >>>>> Server days go on and could not be freed up. >>>>> >>>>> sorry for my pool english,I hope you can understand what I have said. >>>>> >>>> >>>> >>> >> >
