On Thu, Jun 18, 2026 at 05:21:14PM +0800, Ruidong Tian wrote: > This series continues Tong Tiangen's work on arm64 ARCH_HAS_COPY_MC > support. We encounter the same problem, and from a forward-looking > perspective, large-memory ARM machines will suffer more from this class > of issues, which motivates us to push this feature upstream. > > Problem > ========= > With the increase of memory capacity and density, the probability of memory > error also increases. The increasing size and density of server RAM in data > centers and clouds have shown increased uncorrectable memory errors. > > Currently, more and more scenarios that can tolerate memory errors, such as > COW[1,2,8,9], KSM copy[3], coredump copy[4], khugepaged[5,6], uaccess copy[7], > page migration[10,11], etc. >
Hi Ruidong, just a minor editorial nit :-) > [PATCH v15 0/8] arm64: add ARCH_HAS_COPY_MC support the series has 9 patches, but Subject says 0/8. Cheers, Ashok
