Re: Possible 6.5 regression: Huge values for "commited memory"

[Helge Deller <deller@gmx.de>]

Hi Christoph,

On 9/10/23 19:48, Christoph Biedl wrote:
> For the time being, just an observation: I monitor various parameters on
> my systems, and among them is "Committed memory", the Committed_AS value
> in /proc/meminfo.
>
> Since upgrading to the 6.5.x series, I noticed the value there grows way
> higher values then previously in hppa, even if the machine is idle.
> Values seem to rise up to around 1.6 Gbyte, long-term average is rather
> 200-300 Mbyte. Also, I cannot see any memory hogs in top. The workload
> hasn't changed in months.
>
> To sum it up, I reckon something went wrong in the memory usage
> accounting. Is this already on radar, or should I start bisecting? That
> might take a lot of time, though.

I doubt there is a specific memory leak in the parisc code.
Usually we just touch driver code or other arch-related code, so if
there is something wrong, then it must be in generic code and should
be visible on other platforms too.
We changed to the SLUB allocator, but I don't think this makes any
difference either.

Helge