Messages in this thread |  | | Date | Wed, 04 Oct 2000 17:40:11 +0200 | From | Roger Larsson <> | Subject | Re: VM in v2.4.0test9 |
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Rik van Riel wrote: > > On Wed, 4 Oct 2000, David Weinehall wrote: > > > Running the included program on a clean v2.4.0test9 kernel I can > > hang the computer practically in no time. > > > What seems most strange is that the doesn't even get depleated. > > The machine still answers to SysRq and ping, but nothing else. > > Looking again at this report in more detail, something > very strange is going on ... > > > This is what I got from SysRq+M (manual copy): > > > > Free pages: 500 kB (0 highmem) > > Active: 8 inactive dirty: 1009, inactive clean:0 > > free: 125 (31 62 93) > > First, you have MORE free memory than freepages.high. In this > case I really don't see why __alloc_pages() wouldn't give the > memory to your processes .... >
Hmm... Can't it be a zone problem? Free pages is the total free - all zones. But suppose you want a page from a specific zone - DMA, the more memory you have the less likely that you have a DMA page free... Does all test take this into consideration?
> > Free swap: 64772 > > And there is tons of swap free... > > Are you absolutely sure this is VM related? This almost looks > like the system puts a in a read request but the request queue > doesn't get unplugged, or something strange like that ... > > There is more than enough memory to satisfy all VM requests and > the loop in __alloc_pages() is straightforward enough to give > your processes their memory without strange bugs ... > > regards, > > Rik > -- > "What you're running that piece of shit Gnome?!?!" > -- Miguel de Icaza, UKUUG 2000 > > http://www.conectiva.com/ http://www.surriel.com/ > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/
-- Home page: http://www.norran.net/nra02596/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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