Re: [PATCH] mm: Fix vmstat after removing NR_BOUNCE

On 5/29/25 4:38 AM, Kirill A. Shutemov wrote:

Hongyu noticed that the nr_unaccepted counter kept growing even in the absence of unaccepted memory on the machine.

This happens due to a commit that removed NR_BOUNCE: it removed the counter from the enum zone_stat_item, but left it in the vmstat_text array.

As a result, all counters below nr_bounce in /proc/vmstat are shifted by one line, causing the numa_hit counter to be labeled as nr_unaccepted.

To fix this issue, remove nr_bounce from the vmstat_text array.

Reviewed-by: Jens Axboe axboe@kernel.dk

Cc: stable@vger.kernel.org

No need for a stable tag, the patch went into the 6.16 merge window.