linux-kernel - Re: [PATCH v3 0/2] binfmt_elf, coredump: Log the reason of the failed core dumps

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Message-Id: <172291878808.3394314.1409314003306906435.b4-ty@kernel.org>
Date: Mon,  5 Aug 2024 21:33:12 -0700
From: Kees Cook <kees@...nel.org>
To: akpm@...ux-foundation.org,
	apais@...ux.microsoft.com,
	ardb@...nel.org,
	bigeasy@...utronix.de,
	brauner@...nel.org,
	ebiederm@...ssion.com,
	jack@...e.cz,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	nagvijay@...rosoft.com,
	oleg@...hat.com,
	tandersen@...flix.com,
	vincent.whitchurch@...s.com,
	viro@...iv.linux.org.uk,
	Kees Cook <kees@...nel.org>,
	Roman Kisel <romank@...ux.microsoft.com>
Cc: apais@...rosoft.com,
	benhill@...rosoft.com,
	ssengar@...rosoft.com,
	sunilmut@...rosoft.com,
	vdso@...bites.dev
Subject: Re: [PATCH v3 0/2] binfmt_elf, coredump: Log the reason of the failed core dumps

On Thu, 18 Jul 2024 11:27:23 -0700, Roman Kisel wrote:
> A powerful way to diagnose crashes is to analyze the core dump produced upon
> the failure. Missing or malformed core dump files hinder these investigations.
> I'd like to propose changes that add logging as to why the kernel would not
> finish writing out the core dump file.
> 
> To help in diagnosing the user mode helper not writing out the entire coredump
> contents, the changes also log short statistics on the dump collection. I'd
> advocate for keeping this at the info level on these grounds.
> 
> [...]

Applied to for-next/execve, thanks!

[1/2] coredump: Standartize and fix logging
      https://git.kernel.org/kees/c/c114e9948c2b
[2/2] binfmt_elf, coredump: Log the reason of the failed core dumps
      https://git.kernel.org/kees/c/fb97d2eb542f

Take care,

-- 
Kees Cook