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SubjectRe: 2.6.28-rc8 big regression in VM
Date
KVMWu Fengguang wrote:
> On Sat, Dec 13, 2008 at 11:58:15AM +0200, Lukas Hejtmanek wrote:
>> On Sat, Dec 13, 2008 at 09:21:15AM +0800, Wu Fengguang wrote:
>>> I cannot reproduce it on 2.6.28-rc7, compiling 2.6.28-rc8...
>>>
>>> # free; echo 3 > /proc/sys/vm/drop_caches; free
>>> total used free shared buffers cached
>>> Mem: 1940 109 1831 0 0 42
>>> -/+ buffers/cache: 66 1873
>>> Swap: 0 0 0
>>> total used free shared buffers cached
>>> Mem: 1940 62 1877 0 0 7
>>> -/+ buffers/cache: 55 1884
>>> Swap: 0 0 0
>>>
>>>> once the whole memory is eaten by the cache, the system is pretty unusable.
>>> What's your kconfig?
>> attached.
>
> OK I'll try it. I cannot produce the bug in my -rc8 configuration yet:
>
> # free; echo 3 > /proc/sys/vm/drop_caches; free
> total used free shared buffers cached
> Mem: 1940 906 1033 0 0 761
> -/+ buffers/cache: 144 1795
> Swap: 0 0 0
> total used free shared buffers cached
> Mem: 1940 147 1793 0 0 19
> -/+ buffers/cache: 127 1813
> Swap: 0 0 0
>

Could the problem be related to him running 2GB memory and you running... well,
maybe a patches version of "free?" Or can you really run in 2MB, or am I misreading?

--
Bill Davidsen <davidsen@tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot



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