Subject: Re: [REGRESSION] [next-20251117] ppc64le: WARNING in vmalloc_fix_flags with __GFP_ACCOUNT in BPF/seccomp path

From: Ritesh Harjani (IBM) <[email-masked]>
Date: Tue, 18 Nov 2025 13:21:24 +0530

Misbah Anjum N <[email-masked]> writes:

> Hi,
>
> I'm reporting a regression in linux-next that was introduced between 
> 20251114 and 20251117.
>
> Regression Info:
> - Working: 6.18.0-rc5-next-20251114
> - Broken: 6.18.0-rc6-next-20251117
>
> Environment:
> - IBM Power11 pSeries (ppc64le)
> - Fedora43 Distro
>
> Issue:
> WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x6c/0xa0
> "Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 
> (GFP_KERNEL|__GFP_ZERO). Fix your code!"
>
> Call Trace:
> [  523.921345] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to 
> gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
> [  523.921356] WARNING: mm/vmalloc.c:3937 at 
> vmalloc_fix_flags+0x6c/0xa0, CPU#69: (ostnamed)/6500

This was reported here too - 
https://lore.kernel.org/all/[email-masked]/

Looks like it should be fixed with v3, which was posted just
yesterday... 
https://lore.kernel.org/all/[email-masked]/

So, I guess, latest linux-next should not show this warning on ppc64le either.

-ritesh