On Thu, Apr 03, 2014 at 10:04:58AM -0700, Laura Abbott wrote: > memblock is now fully integrated into the kernel and is the prefered > method for tracking memory. Rather than reinvent the wheel with > meminfo, migrate to using memblock directly instead of meminfo as > an intermediate. This patch is in 3.16-rc1 as 1c2f87c22566cd057bc8cde10c37ae9da1a1bb76 now. Unfortunately it makes my efm32 machine unbootable. With earlyprintk enabled I get the following output: [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.15.0-rc1-00028-g1c2f87c22566-dirty (ukleinek@perseus) (gcc version 4.7.2 (OSELAS.Toolchain-2012.12.1) ) #280 PREEMPT Mon Jun 23 11:05:34 CEST 2014 [ 0.000000] CPU: ARMv7-M [412fc231] revision 1 (ARMv7M), cr=00000000 [ 0.000000] CPU: unknown data cache, unknown instruction cache [ 0.000000] Machine model: Energy Micro Giant Gecko Development Kit [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] On node 0 totalpages: 1024 [ 0.000000] free_area_init_node: node 0, pgdat 880208f4, node_mem_map 00000000 [ 0.000000] Normal zone: 3840 pages exceeds freesize 1024 [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 1024 pages, LIFO batch:0 [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1024 [ 0.000000] Kernel command line: console=ttyefm4,115200 init=/linuxrc ignore_loglevel ihash_entries=64 dhash_entries=64 earlyprintk uclinux.physaddr=0x8c400000 root=/dev/mtdblock0 [ 0.000000] PID hash table entries: 16 (order: -6, 64 bytes) [ 0.000000] Dentry cache hash table entries: 64 (order: -4, 256 bytes) [ 0.000000] Inode-cache hash table entries: 64 (order: -4, 256 bytes) [ 0.000000] Memory: 0K/4096K available (1156K kernel code, 83K rwdata, 316K rodata, 56K init, 43K bss, 212K reserved) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0x00000000 - 0x00001000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 kB) [ 0.000000] vmalloc : 0x00000000 - 0xffffffff (4095 MB) [ 0.000000] lowmem : 0x88000000 - 0x88400000 ( 4 MB) [ 0.000000] .text : 0x8c000000 - 0x8c170360 (1473 kB) [ 0.000000] .init : 0x8800a000 - 0x8800e000 ( 16 kB) [ 0.000000] .data : 0x88008000 - 0x88020f80 ( 100 kB) [ 0.000000] .bss : 0x88020f8c - 0x8802bf5c ( 44 kB) [ 0.000000] swapper: page allocation failure: order:0, mode:0x200000 [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1-00028-g1c2f87c22566-dirty #280 [ 0.000000] [<8c002b95>] (unwind_backtrace) from [<8c001f0b>] (show_stack+0xb/0xc) [ 0.000000] [<8c001f0b>] (show_stack) from [<8c02e997>] (warn_alloc_failed+0x95/0xba) [ 0.000000] [<8c02e997>] (warn_alloc_failed) from [<8c02ff6b>] (__alloc_pages_nodemask+0x437/0x484) [ 0.000000] [<8c02ff6b>] (__alloc_pages_nodemask) from [<8c03b7b5>] (new_slab+0x51/0x184) [ 0.000000] [<8c03b7b5>] (new_slab) from [<8c03c1b5>] (__kmem_cache_create+0x5d/0x12c) [ 0.000000] [<8c03c1b5>] (__kmem_cache_create) from [<8c174667>] (create_boot_cache+0x23/0x3c) [ 0.000000] [<8c174667>] (create_boot_cache) from [<8c1751af>] (kmem_cache_init+0x23/0x88) [ 0.000000] [<8c1751af>] (kmem_cache_init) from [<8c17078b>] (start_kernel+0xfb/0x210) [ 0.000000] [<8c17078b>] (start_kernel) from [<8c000023>] (0x8c000023) [ 0.000000] Mem-info: [ 0.000000] Normal per-cpu: [ 0.000000] CPU 0: hi: 0, btch: 1 usd: 0 [ 0.000000] active_anon:0 inactive_anon:0 isolated_anon:0 [ 0.000000] active_file:0 inactive_file:0 isolated_file:0 [ 0.000000] unevictable:0 dirty:0 writeback:0 unstable:0 [ 0.000000] free:0 slab_reclaimable:0 slab_unreclaimable:0 [ 0.000000] mapped:0 shmem:0 pagetables:0 bounce:0 [ 0.000000] free_cma:0 [ 0.000000] Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4096kB managed:2776kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes [ 0.000000] lowmem_reserve[]: 0 0 [ 0.000000] Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB = 0kB [ 0.000000] 0 total pagecache pages [ 0.000000] [ 0.000000] Unhandled exception: IPSR = 00000003 LR = fffffff1 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1-00028-g1c2f87c22566-dirty #280 [ 0.000000] task: 88015950 ti: 88008000 task.ti: 88008000 [ 0.000000] PC is at show_mem+0x96/0x150 [ 0.000000] LR is at 0x880251e0 [ 0.000000] pc : [<8c00359a>] lr : [<880251e0>] psr: 0100000b [ 0.000000] sp : 88009e68 ip : 00088000 fp : 4100f101 [ 0.000000] r10: 00000080 r9 : f7ff0047 r8 : 00000001 [ 0.000000] r7 : 00000001 r6 : d0fb0f3f r5 : 00000000 r4 : 00000000 [ 0.000000] r3 : 00000060 r2 : 88025238 r1 : 00000004 r0 : 8801a2e4 [ 0.000000] xPSR: 0100000b [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1-00028-g1c2f87c22566-dirty #280 [ 0.000000] [<8c002b95>] (unwind_backtrace) from [<8c001f0b>] (show_stack+0xb/0xc) [ 0.000000] [<8c001f0b>] (show_stack) from [<8c002547>] (__invalid_entry+0x4b/0x4c) (The -dirty is just: diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 2b751464d6ff..9536c9ec6f43 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -92,7 +92,7 @@ * Fortunately, there is no reference for this in noMMU mode, for now. */ #ifndef TASK_SIZE -#define TASK_SIZE (CONFIG_DRAM_SIZE) +#define TASK_SIZE UL(0xffffffff) #endif #ifndef TASK_UNMAPPED_BASE which is needed to make nommu machines boot.) Any idea? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>