From: Peter Zijlstra <peterz@infradead.org>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
Aili Yao <yaoaili@kingsoft.com>, 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>,
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 17:56:58 +0100 [thread overview]
Message-ID: <YEpL2im5KCoEeXlS@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <0a0909a9005842fa9e49ba9917580e79@intel.com>
On Thu, Mar 11, 2021 at 04:52:10PM +0000, Luck, Tony wrote:
> > 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?
kthread_use_mm()
next prev parent reply other threads:[~2021-03-11 16:57 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
2021-03-11 16:56 ` Peter Zijlstra [this message]
2021-03-09 2:14 ` Aili Yao
2021-03-09 2:25 ` Aili Yao
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