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SubjectRe: Possible bug in ACPI

cc added.

On Tue, 19 Sep 2006 23:47:24 +0200
Dalibor Straka <dast@panelnet.cz> wrote:

> Hello,
>
> I am often running out of memory. It looks like an ACPI code is guilty:
> dast@lili:~$ grep -i acpi /proc/slabinfo
> Acpi-Operand 3076 3127 64 59 1 : tunables 120 60 8 : slabdata 53 53 0
> Acpi-ParseExt 16 59 64 59 1 : tunables 120 60 8 : slabdata 1 1 0
> Acpi-Parse 76 92 40 92 1 : tunables 120 60 8 : slabdata 1 1 0
> Acpi-State 1644960 1644960 80 48 1 : tunables 120 60 8 : slabdata 34270 34270 0
> Acpi-Namespace 1177 1232 32 112 1 : tunables 120 60 8 : slabdata 11 11 0
> dast@lili:~$ free
> Mem: 899280 892472 6808 0 82212 77936
> -/+ buffers/cache: 732324 166956
> Swap: 2634620 243052 2404568
> dast@lili:~$ uname -a
> Linux lili 2.6.18-rc7 #1 SMP Sun Sep 17 15:01:00 CEST 2006 x86_64
>
>
> Actualy the Acpi-State's memory is increasing slowly in minutes:
> Acpi-State 16176 16176 80 48 1 : tunables 120 60 8 : slabdata 337 337 0
> Acpi-State 18816 18816 80 48 1 : tunables 120 60 8 : slabdata 392 392 0
> Acpi-State 19200 19200 80 48 1 : tunables 120 60 8 : slabdata 400 400 0
> Acpi-State 20160 20160 80 48 1 : tunables 120 60 8 : slabdata 420 420 0

Yes, that is a memory leak.

> I am not familiar with kernel sources, but i can do c pretty well.
> BTW: Bios says i have 1024MB, but kernel sees 899MB :-?. The system is
> pure HP nx6325. It happens with all the recent kernels .18-rc* .17.* and
> debian's distribution 2.6.17-1-amd64-k8-smp.
>
> Please Cc: to me, I read lkml only when I have a good mood.

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