On Mon, Apr 18, 2016 at 01:38:20PM +0800, Baoquan He wrote: > On 04/14/16 at 09:00pm, Russell King wrote: > > On PAE systems (eg, ARM LPAE) the vmcore note may be located above > > 4GB physical on 32-bit architectures, so we need a wider type than > > "unsigned long" here. Arrange for paddr_vmcoreinfo_note() to return > > a phys_addr_t, thereby allowing it to be located above 4GB. > > At first glance, it sounds great. But I can't imagine a scenario where > on pae system kernel can be located above 4G. As far as I know i386 and > its pae can't do this because the current linux VM implementation can't > allow that. I am not familiar with arm system. So please correct me if > I was wrong. You are wrong. That's precisely why this patch exists. -- RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.
