On 9/10/2020 3:01 PM, Kirill A. Shutemov wrote:
On Thu, Sep 10, 2020 at 01:47:39PM -0700, Vijay Balakrishna wrote:When memory is hotplug added or removed the min_free_kbytes must be recalculated based on what is expected by khugepaged. Currently after hotplug, min_free_kbytes will be set to a lower default and higher default set when THP enabled is lost. This leaves the system with small min_free_kbytes which isn't suitable for systems especially with network intensive loads. Typical failure symptoms include HW WATCHDOG reset, soft lockup hang notices, NETDEVICE WATCHDOG timeouts, and OOM process kills. Fixes: f000565adb77 ("thp: set recommended min free kbytes") Signed-off-by: Vijay Balakrishna <vijayb@xxxxxxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxxNAK. It would override min_free_kbytes set by user.
Hi Kirill, To fix the issue you raised I just submitted https://lore.kernel.org/lkml/1600145748-26518-1-git-send-email-vijayb@xxxxxxxxxxxxxxxxxxx/ Thanks, Vijay
