Re: [RFC v2 1/4] vmalloc: introduce vmalloc_exec and vfree_exec

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To: "Edgecombe, Rick P" <rick.p.edgecombe@xxxxxxxxx>
Subject: Re: [RFC v2 1/4] vmalloc: introduce vmalloc_exec and vfree_exec
From: Song Liu <songliubraving@xxxxxx>
Date: Mon, 10 Oct 2022 19:04:31 +0000
Accept-language: en-US
Cc: "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>, "song@xxxxxxxxxx" <song@xxxxxxxxxx>, "hch@xxxxxx" <hch@xxxxxx>, Kernel Team <Kernel-team@xxxxxx>, "peterz@xxxxxxxxxxxxx" <peterz@xxxxxxxxxxxxx>, "urezki@xxxxxxxxx" <urezki@xxxxxxxxx>, "akpm@xxxxxxxxxxxxxxxxxxxx" <akpm@xxxxxxxxxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "Hansen, Dave" <dave.hansen@xxxxxxxxx>
In-reply-to: <53f0f3feebceead8a40185a5fe59ab15f8bcdcb6.camel@intel.com>
References: <20221007234315.2877365-1-song@kernel.org> <20221007234315.2877365-2-song@kernel.org> <53f0f3feebceead8a40185a5fe59ab15f8bcdcb6.camel@intel.com>


> On Oct 10, 2022, at 11:13 AM, Edgecombe, Rick P <rick.p.edgecombe@xxxxxxxxx> wrote:
> 
> How does this work with kasan?

With KASAN enabled, BPF works fine. But module load does hit some issues. 

I guess we are missing some kasan_*() calls?

Thanks,
Song

Follow-Ups:
- Re: [RFC v2 1/4] vmalloc: introduce vmalloc_exec and vfree_exec
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References:
- [RFC v2 0/4] vmalloc_exec for modules and BPF programs
  - From: Song Liu
- [RFC v2 1/4] vmalloc: introduce vmalloc_exec and vfree_exec
  - From: Song Liu
- Re: [RFC v2 1/4] vmalloc: introduce vmalloc_exec and vfree_exec
  - From: Edgecombe, Rick P

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