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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Feb 01, 2019 at 01:48:47PM +0000, Will Deacon wrote: > Hi Qian Cai, > > Thanks for reporting this. > > On Thu, Jan 31, 2019 at 11:01:50PM -0500, Qian Cai wrote: > > On this ThunderX2 server with both, > > CONFIG_ARM64_USER_VA_BITS_52=y > > CONFIG_ARM64_PTDUMP_DEBUGFS=y > > > > kernel_page_tables could only print out linear mappings. > > I think this is because the ptdump code is abusing both PTRS_PER_PGD and > pgd_offset(mm, 0UL) for walking kernel (TTBR1) page tables. That's not going > to work, because those are still configured as 48-bit. > > Please can you try the diff below? (Steve -- can you have a look as well, > please?). > > Thanks, > > Will Hi Will, This patch looks good to me and worked well for my tests in a model. FWIW: Acked-by: Steve Capper Tested-by: Steve Capper Cheers, -- Steve _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel