Messages in this thread | | | Date | Thu, 11 Mar 2021 17:56:58 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3] x86/fault: Send a SIGBUS to user process always for hwpoison page access. |
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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()
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