> When the vmcore is created by "snap", it first looks at /proc/iomem for > the regions of physical memory that are dumpable. Therefore it rejected > any physical address above f7feffff, which is the problem at hand. f7ff0000-f7ffefff : ACPI Tables f7fff000-f7ffffff : ACPI Non-volatile Storage > Just for sanity's sake, what does "cat /proc/iomem" show? 00000000-00099bff : System RAMcat 00099c00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c9fff : Video ROM 000ca000-000cafff : Adapter ROM 000cb000-000cbfff : Adapter ROM 000cc000-000ccfff : Adapter ROM 000cd000-000cdfff : Adapter ROM 000ce000-000cefff : Adapter ROM 000cf000-000d4bff : Adapter ROM 000f0000-000fffff : System ROM 00100000-f7feffff : System RAM 00100000-00318afa : Kernel code 00318afb-00469ec0 : Kernel data f7ff0000-f7ffefff : ACPI Tables f7fff000-f7ffffff : ACPI Non-volatile Storage fbf00000-fbffffff : PCI Bus #01 fbf80000-fbf9ffff : 0000:01:02.1 fbf80000-fbf9ffff : e1000 fbfa0000-fbfbffff : 0000:01:02.0 fbfa0000-fbfbffff : e1000 fbfc0000-fbfdffff : 0000:01:01.1 fbfc0000-fbfdffff : e1000 fbfe0000-fbffffff : 0000:01:01.0 fbfe0000-fbffffff : e1000 fc000000-fc4fffff : PCI Bus #02 fc4e0000-fc4effff : 0000:02:03.0 fc4fc000-fc4fffff : 0000:02:03.0 fc500000-fe5fffff : PCI Bus #03 fd000000-fdffffff : 0000:03:03.0 fe5fd000-fe5fdfff : 0000:03:00.1 fe5fd000-fe5fdfff : ohci_hcd fe5fe000-fe5fefff : 0000:03:00.0 fe5fe000-fe5fefff : ohci_hcd fe5ff000-fe5fffff : 0000:03:03.0 fe6fe000-fe6fefff : 0000:00:02.1 fe6ff000-fe6fffff : 0000:00:01.1 fe700000-fe7fffff : PCI Bus #01 fe800000-fe8fffff : PCI Bus #02 feafe000-feafefff : 0000:04:02.1 feaff000-feafffff : 0000:04:01.1 ff700000-ffffffff : reserved