Dan Williams 658922e57b libnvdimm, pfn: fix memmap reservation sizing ... When configuring a pfn-device instance to allocate the memmap array it needs to account for the fact that vmemmap_populate_hugepages() allocates struct page blocks in HPAGE_SIZE chunks. We need to align the reserved area size to 2MB otherwise arch_add_memory() runs out of memory while establishing the memmap: WARNING: CPU: 0 PID: 496 at arch/x86/mm/init_64.c:704 arch_add_memory+0xe7/0xf0 [..] Call Trace: [<ffffffff8148bdb3>] dump_stack+0x85/0xc2 [<ffffffff810a749b>] __warn+0xcb/0xf0 [<ffffffff810a75cd>] warn_slowpath_null+0x1d/0x20 [<ffffffff8106a497>] arch_add_memory+0xe7/0xf0 [<ffffffff811d2097>] devm_memremap_pages+0x287/0x450 [<ffffffff811d1ffa>] ? devm_memremap_pages+0x1ea/0x450 [<ffffffffa0000298>] __wrap_devm_memremap_pages+0x58/0x70 [nfit_test_iomap] [<ffffffffa0047a58>] pmem_attach_disk+0x318/0x420 [nd_pmem] [<ffffffffa0047bcf>] nd_pmem_probe+0x6f/0x90 [nd_pmem] [<ffffffffa0009469>] nvdimm_bus_probe+0x69/0x110 [libnvdimm] [..] ndbus0: nd_pmem.probe(pfn3.0) = -12 nd_pmem: probe of pfn3.0 failed with error -12 libndctl: ndctl_pfn_enable: pfn3.0: failed to enable Reported-by: Namratha Kothapalli <namratha.n.kothapalli@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2016-04-30 13:07:06 -07:00
..
blk.c
btt_devs.c
btt.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
btt.h
bus.c	libnvdimm: fix smart data retrieval	2016-04-07 19:58:44 -07:00
claim.c
core.c	libnvdimm, pfn: fix nvdimm_namespace_add_poison() vs section alignment	2016-04-07 20:02:06 -07:00
dimm_devs.c
dimm.c
e820.c
Kconfig
label.c
label.h
Makefile
namespace_devs.c
nd-core.h
nd.h	libnvdimm, pfn: fix nvdimm_namespace_add_poison() vs section alignment	2016-04-07 20:02:06 -07:00
pfn_devs.c	libnvdimm, pfn: fix uuid validation	2016-04-07 19:59:27 -07:00
pfn.h
pmem.c	libnvdimm, pfn: fix memmap reservation sizing	2016-04-30 13:07:06 -07:00
region_devs.c
region.c