linux-kernel - Re: [PATCH v2] arm64: Track no early_pgtable

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Message-Id: <163636592237.15032.12831105402698814160.b4-ty@kernel.org>
Date:   Mon,  8 Nov 2021 10:37:52 +0000
From:   Will Deacon <will@...nel.org>
To:     Qian Cai <quic_qiancai@...cinc.com>,
        Catalin Marinas <catalin.marinas@....com>
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kasan-dev@...glegroups.com, linux-arm-kernel@...ts.infradead.org,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Alexander Potapenko <glider@...gle.com>,
        Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH v2] arm64: Track no early_pgtable_alloc() for kmemleak

On Fri, 5 Nov 2021 11:05:09 -0400, Qian Cai wrote:
> After switched page size from 64KB to 4KB on several arm64 servers here,
> kmemleak starts to run out of early memory pool due to a huge number of
> those early_pgtable_alloc() calls:
> 
>   kmemleak_alloc_phys()
>   memblock_alloc_range_nid()
>   memblock_phys_alloc_range()
>   early_pgtable_alloc()
>   init_pmd()
>   alloc_init_pud()
>   __create_pgd_mapping()
>   __map_memblock()
>   paging_init()
>   setup_arch()
>   start_kernel()
> 
> [...]

Applied to arm64 (for-next/core), thanks!

[1/1] arm64: Track no early_pgtable_alloc() for kmemleak
      https://git.kernel.org/arm64/c/c6975d7cab5b

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev