Re: [REGRESSION] kswapd0: page allocation failure (bisected to "slab: add sheaves to most caches")

From: Vlastimil Babka

Date: Thu Feb 26 2026 - 13:04:01 EST


On 2/26/26 17:20, Mikhail Gavrilov wrote:
> On Wed, Feb 25, 2026, Harry Yoo <harry.yoo@xxxxxxxxxx> wrote:
>> Slab fix is submitted here, please feel free to test:
>>
>> https://lore.kernel.org/linux-mm/20260223133322.16705-1-harry.yoo@xxxxxxxxxx
>
> No page allocation failures after 33 hours of uptime under normal
> desktop workload with memory pressure (64GB RAM, btrfs + zram swap,
> Chrome with many tabs, AMD GPU).
>
> Previously without this patch, I was seeing failures from both
> kswapd0/btrfs and chrome/amdgpu callers within 10 hours.
>
> Kernel: 7.0.0-rc1 (commit 7dff99b35460 + this patch)
> Hardware: ASUS ROG STRIX B650E-I, AMD Ryzen, 64GB RAM
>
> Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@xxxxxxxxx>

Thanks, added to the commit.