Re: [Xenomai-help] Error: cat: /proc/xenomai/stat: Cannot allocate memory

[Jan Kiszka <jan.kiszka@domain.hid>]

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Philippe Gerum wrote:
> On Fri, 2007-02-02 at 14:59 +0200, Rus V. Brushkoff wrote:
>> :> Yes, 2.6.19-1.6-04 (without nowcow) has the same problem. But the
>> :> interesting things is that reading /proc/interrupts in loop seems to
>> :> silently eat kernel memory by small chunks too. I'm now trying on a
>> :> vanilla kernel.
>> :Confirmed. A vanilla 2.6.19 silently eats memory when
>> :reading /proc/interrupts in loop. Mathias, could you please confirm this
>> :on your box too? TIA,
>>
>>  Tested on K8 x86_64 SMP and K8 x86 UP : SMP system leaks memory, UP 
>> doesn't.
> 
> Thanks. I do have a leak on UP here though; vmstat or any other command
> do not eat this memory (at least neither ps or top report any continuous
> growth of their vm space while running the test), so I would wildly
> guess that's a kernel-based leakage occurring somewhere in the procfs
> support.

Must be .config-dependent. My UP box (.config attached) doesn't expose
any leak on /proc/interrupt loops with 2.6.19.2.

Jan

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