On 01/04/2011 04:28 PM, KAMEZAWA Hiroyuki wrote:
On Tue, 04 Jan 2011 15:51:44 +0800
"Figo.zhang"<zhangtianfei@xxxxxxxxxxxxxxxx> wrote:
i had send the patch to protect the hardware access processes for
oom-killer before, but rientjes have not agree with me.
but today i catch log from my desktop. oom-killer have kill my "minicom"
and "Xorg". so i think it should add protection about it.
Off topic.
In this log, I found
Jan 4 15:22:55 figo-desktop kernel: Free swap = -1636kB
Jan 4 15:22:55 figo-desktop kernel: Total swap = 0kB
Jan 4 15:22:55 figo-desktop kernel: 515070 pages RAM
... This means total_swap_pages = 0 while pages are read-in at swapoff.
Let's see 'points' for oom
==
points = (get_mm_rss(p->mm) + get_mm_counter(p->mm, MM_SWAPENTS)) * 1000 /
totalpages;
==
Here, totalpages = total_ram + total_swap but totalswap is 0 here.
So, points can be> 1000, easily.
(This seems not to be related to the Xorg's death itself)
total_swap is 0, so
totalpages = total_ram,
get_mm_counter(p->mm, MM_SWAPENTS) = 0,
so
points = (get_mm_rss(p->mm)) * 1000 / totalpages;
so points canot larger than 1000.
Thanks,
-Kame
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