RE: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>
Subject: RE: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
From: "Luck, Tony" <tony.luck@xxxxxxxxx>
Date: Tue, 18 Feb 2025 17:59:16 +0000
Accept-language: en-US
Cc: "nao.horiguchi@xxxxxxxxx" <nao.horiguchi@xxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "dave.hansen@xxxxxxxxxxxxxxx" <dave.hansen@xxxxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "hpa@xxxxxxxxx" <hpa@xxxxxxxxx>, "linmiaohe@xxxxxxxxxx" <linmiaohe@xxxxxxxxxx>, "akpm@xxxxxxxxxxxxxxxxxxxx" <akpm@xxxxxxxxxxxxxxxxxxxx>, "peterz@xxxxxxxxxxxxx" <peterz@xxxxxxxxxxxxx>, "jpoimboe@xxxxxxxxxx" <jpoimboe@xxxxxxxxxx>, "linux-edac@xxxxxxxxxxxxxxx" <linux-edac@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>, "baolin.wang@xxxxxxxxxxxxxxxxx" <baolin.wang@xxxxxxxxxxxxxxxxx>, "tianruidong@xxxxxxxxxxxxxxxxx" <tianruidong@xxxxxxxxxxxxxxxxx>
In-reply-to: <02164ab7-c65b-4b2e-8686-5539bdcb8f43@linux.alibaba.com>
References: <20250217063335.22257-1-xueshuai@linux.alibaba.com> <20250218082727.GCZ7REb7OG6NTAY-V-@fat_crate.local> <7393bcfb-fe94-4967-b664-f32da19ae5f9@linux.alibaba.com> <20250218122417.GHZ7R78fPm32jKYUlx@fat_crate.local> <02164ab7-c65b-4b2e-8686-5539bdcb8f43@linux.alibaba.com>

>> What do futexes have to do with copying user memory?
>
> Return -EFAULT to userspace.

Missed this bit. Kernel code for futex does a get_user() to read the
value of the futex from user memory.

-Tony

Follow-Ups:
- Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Shuai Xue

References:
- [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Shuai Xue
- Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Borislav Petkov
- Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Shuai Xue
- Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Borislav Petkov
- Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
  - From: Shuai Xue

Prev by Date: Re: [syzbot] [mm?] [bcachefs?] WARNING in lock_list_lru_of_memcg
Next by Date: [PATCH v4 10/10] KVM: guest_memfd: selftests: guest_memfd mmap() test when mapping is allowed
Previous by thread: Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
Next by thread: Re: [PATCH v2 0/5] mm/hwpoison: Fix regressions in memory failure handling
Index(es):
- Date
- Thread

[Index of Archives] [Linux ARM Kernel] [Linux ARM] [Linux Omap] [Fedora ARM] [IETF Annouce] [Bugtraq] [Linux OMAP] [Linux MIPS] [eCos] [Asterisk Internet PBX] [Linux API]