From: "Luck, Tony" <tony.luck@intel.com>
To: Andy Lutomirski <luto@amacapital.net>, Aili Yao <yaoaili@kingsoft.com>
Cc: Oleg Nesterov <oleg@redhat.com>,
Linux API <linux-api@vger.kernel.org>,
Andy Lutomirski <luto@kernel.org>,
HORIGUCHI NAOYA <naoya.horiguchi@nec.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>, X86 ML <x86@kernel.org>,
"yangfeng1@kingsoft.com" <yangfeng1@kingsoft.com>,
Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
"sunhao2@kingsoft.com" <sunhao2@kingsoft.com>
Subject: RE: [PATCH v3] x86/fault: Send a SIGBUS to user process always for hwpoison page access.
Date: Thu, 11 Mar 2021 16:52:10 +0000 [thread overview]
Message-ID: <0a0909a9005842fa9e49ba9917580e79@intel.com> (raw)
In-Reply-To: <CALCETrVqkK29n=6wtVhd7qgTWf83x3SUk6+bkD30asHyWSqppw@mail.gmail.com>
> I think we need to at least fix the existing bug before we add more
> signals. AFAICS the MCE_IN_KERNEL_COPYIN code is busted for kernel
> threads.
Can a kernel thread do get_user() or copy_from_user()? Do we have kernel threads
that have an associated user address space to copy from?
-Tony
next prev parent reply other threads:[~2021-03-11 16:53 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 8:17 [PATCH v2] x86/fault: Send a SIGBUS to user process always for hwpoison page access Aili Yao
2021-02-01 16:58 ` Andy Lutomirski
2021-02-01 21:10 ` Luck, Tony
2021-02-01 22:09 ` Andy Lutomirski
2021-02-02 6:42 ` Aili Yao
2021-02-04 7:25 ` HORIGUCHI NAOYA(堀口 直也)
2021-02-05 5:06 ` Aili Yao
2021-02-05 9:01 ` [PATCH v3] " Aili Yao
2021-02-23 12:44 ` Aili Yao
2021-02-23 15:33 ` Andy Lutomirski
2021-02-23 16:42 ` Luck, Tony
2021-02-25 4:47 ` Aili Yao
2021-02-27 3:40 ` Andy Lutomirski
2021-03-01 7:57 ` Aili Yao
2021-03-01 18:12 ` Luck, Tony
2021-03-01 19:02 ` Luck, Tony
2021-03-01 19:09 ` Andy Lutomirski
2021-03-03 12:24 ` Aili Yao
2021-03-03 12:51 ` Aili Yao
2021-03-07 19:16 ` Andy Lutomirski
2021-03-08 9:49 ` Aili Yao
2021-03-08 18:14 ` Andy Lutomirski
2021-03-08 18:31 ` Luck, Tony
2021-03-08 19:00 ` Andy Lutomirski
2021-03-11 1:19 ` Aili Yao
2021-03-11 1:28 ` Andy Lutomirski
2021-03-11 2:01 ` Aili Yao
2021-03-11 16:52 ` Luck, Tony [this message]
2021-03-11 16:56 ` Peter Zijlstra
2021-03-09 2:14 ` Aili Yao
2021-03-09 2:25 ` Aili Yao
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0a0909a9005842fa9e49ba9917580e79@intel.com \
--to=tony.luck@intel.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=linux-api@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=luto@amacapital.net \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=naoya.horiguchi@nec.com \
--cc=oleg@redhat.com \
--cc=peterz@infradead.org \
--cc=sunhao2@kingsoft.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
--cc=yangfeng1@kingsoft.com \
--cc=yaoaili@kingsoft.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.