Re: [PATCH v3] x86/fault: Send a SIGBUS to user process always for hwpoison page access.
From: Peter Zijlstra <peterz@infradead.org>
Date: 2021-03-11 16:58:25
Also in:
linux-mm, lkml
On Thu, Mar 11, 2021 at 04:52:10PM +0000, Luck, Tony wrote:
quoted
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()