linux-kernel - Re: [PATCH v2 0/3] Handle delay slot for extable lookup

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Date: Thu, 8 Feb 2024 09:20:47 +0000
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Oleg Nesterov <oleg@...hat.com>,
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Ben Hutchings <ben@...adent.org.uk>
Cc: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-mips@...r.kernel.org, linux-mm@...ck.org,
 Xi Ruoyao <xry111@...111.site>,
 Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v2 0/3] Handle delay slot for extable lookup



在 2024/2/2 12:30, Jiaxun Yang 写道:
> Hi all,
>
> This series fixed extable handling for architecture delay slot (MIPS).
>
> Please see previous discussions at [1].
>
> There are some other places in kernel not handling delay slots properly,
> such as uprobe and kgdb, I'll sort them later.

A gentle ping :-)

This series fixes a regression, perhaps it should go through fixes tree.

Thanks
- Jiaxun

>
> Thanks!
>
> [1]: https://lore.kernel.org/lkml/75e9fd7b08562ad9b456a5bdaacb7cc220311cc9.camel@xry111.site
>
> To: Oleg Nesterov <oleg@...hat.com>
>
> To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
>
> To: Andrew Morton <akpm@...ux-foundation.org>
> To: Ben Hutchings <ben@...adent.org.uk>
>
> Cc:  <linux-arch@...r.kernel.org>
> Cc:  <linux-kernel@...r.kernel.org>
>
> Cc:  <linux-mips@...r.kernel.org>
>
> Cc:  <linux-mm@...ck.org>
>
> Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> ---
> Changes in v2:
> - Reduce diffstat by implemente fallback macro in linux/ptrace.h (linus)
> - Link to v1: https://lore.kernel.org/r/20240201-exception_ip-v1-0-aa26ab3ee0b5@flygoat.com
>
> ---
> Jiaxun Yang (3):
>        ptrace: Introduce exception_ip arch hook
>        MIPS: Clear Cause.BD in instruction_pointer_set
>        mm/memory: Use exception ip to search exception tables
>
>   arch/mips/include/asm/ptrace.h | 3 +++
>   arch/mips/kernel/ptrace.c      | 7 +++++++
>   include/linux/ptrace.h         | 4 ++++
>   mm/memory.c                    | 4 ++--
>   4 files changed, 16 insertions(+), 2 deletions(-)
> ---
> base-commit: 06f658aadff0e483ee4f807b0b46c9e5cba62bfa
> change-id: 20240131-exception_ip-194e4ad0e6ca
>
> Best regards,

-- 
---
Jiaxun Yang