[Crash-utility] [PATCH] Fix "ps/vm" commands to display the memory usage for exiting tasks

[lijiang]

On Fri, Aug 25, 2023 at 9:15 AM HAGIO KAZUHITO(萩尾 一仁) <k-hagio-ab at nec.com>
wrote:

> >>> -     if (!task_mm(task, TRUE))
> >>> +     if (!(addr = task_mm(task, TRUE)))
> >>> +             return;
> >>> +
> >>> +     if (!readmem(addr + OFFSET(mm_struct_mm_count), KVADDR,
> &mm_count,
> >>> +             sizeof(int), "mm_struct mm_count", RETURN_ON_ERROR))
> >>> +             return;
>
> tt->mm_struct is filled in task_mm(), I think we can use this:
>
>    mm_count = INT(tt->mm_struct + OFFSET(mm_struct_mm_count));
>
> The following code in get_task_mem_usage() also use this.
>

Good idea. I will post v2 with this change later.

Thanks.
Lianbo


>
> Thanks,
> Kazu
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