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From: "Petr Tesařík" <petr@tesarici.cz>
To: Richard Weinberger <richard@nod.at>,
	Anton Ivanov <anton.ivanov@cambridgegreys.com>,
	Johannes Berg <johannes@sipsolutions.net>
Cc: Petr Tesarik <petrtesarik@huaweicloud.com>,
	linux-um@lists.infradead.org (open list:USER-MODE LINUX (UML)),
	linux-kernel@vger.kernel.org (open list),
	Roberto Sassu <roberto.sassu@huaweicloud.com>,
	Petr Tesarik <petr.tesarik1@huawei-partners.com>
Subject: Re: [PATCH 0/2] um: improve UML page fault handling
Date: Wed, 3 Jan 2024 13:51:53 +0100	[thread overview]
Message-ID: <20240103135153.4696cb0f@meshulam.tesarici.cz> (raw)
In-Reply-To: <20231215121431.680-1-petrtesarik@huaweicloud.com>

Happy New Year, everyone!

I can fully understand that you all have had other priorities around
the year end; it was no different with me. ;-)

However, may I kindly ask for some feedback on my proposed fixes?

Petr T

On Fri, 15 Dec 2023 13:14:29 +0100
Petr Tesarik <petrtesarik@huaweicloud.com> wrote:

> From: Petr Tesarik <petr.tesarik1@huawei-partners.com>
> 
> Improve UML handling of segmentation faults in kernel mode. Although
> such page faults are generally caused by a kernel bug, it is annoying
> if they cause an infinite loop, or panic the kernel. More importantly,
> a robust implementation allows to write KUnit tests for various guard
> pages, preventing potential kernel self-protection regressions.
> 
> Petr Tesarik (2):
>   um: do not panic on kernel mode faults
>   um: oops on accessing an non-present page in the vmalloc area
> 
>  arch/um/kernel/trap.c | 19 ++++++++++++++-----
>  1 file changed, 14 insertions(+), 5 deletions(-)
> 



  parent reply	other threads:[~2024-01-03 12:52 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-15 12:14 [PATCH 0/2] um: improve UML page fault handling Petr Tesarik
2023-12-15 12:14 ` [PATCH 1/2] um: do not panic on kernel mode faults Petr Tesarik
2023-12-15 12:14 ` [PATCH 2/2] um: oops on accessing an non-present page in the vmalloc area Petr Tesarik
2024-01-03 12:51 ` Petr Tesařík [this message]
2024-01-04 23:22 ` [PATCH 0/2] um: improve UML page fault handling Richard Weinberger
2024-01-05  6:51   ` Petr Tesařík
2024-01-26  9:55     ` Petr Tesařík

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