Messages in this thread | | | Date | Wed, 10 Mar 2010 14:20:18 -0800 | From | Yinghai Lu <> | Subject | Re: [RFC PATCH 6/6] sparc64: use early_res and nobootmem |
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On 03/10/2010 02:04 PM, David Miller wrote: > From: Yinghai Lu <yinghai@kernel.org> > Date: Wed, 10 Mar 2010 13:24:27 -0800 > >> use early_res/fw_memmap to replace lmb, so could use early_res replace bootme >> later. >> >> Signed-off-by: Yinghai Lu <yinghai@kernel.org> > > This doesn't boot, it looks like early_res is not initialized > early enough, the backtrace is: > > [ 0.000000] Remapping the kernel... done. > [ 0.000000] Kernel panic - not syncing: can not find more space for early_res array > [ 0.000000] Call Trace: > [ 0.000000] [0000000000882c48] __check_and_double_early_res+0xc0/0x1c8 > [ 0.000000] [0000000000882f18] reserve_early+0x10/0x38 > [ 0.000000] [000000000087b894] prom_early_alloc+0x48/0x7c > [ 0.000000] [000000000087b3e4] get_one_property+0x28/0x50 > [ 0.000000] [000000000087b588] prom_create_node+0x44/0xe8 > [ 0.000000] [000000000087b6d0] prom_build_tree+0x1c/0xac > [ 0.000000] [000000000087b7b4] prom_build_devicetree+0x54/0x80 > [ 0.000000] [000000000087fd34] paging_init+0x69c/0x1268 > [ 0.000000] [00000000008786f4] start_kernel+0x88/0x374 > [ 0.000000] [000000000070589c] tlb_fixup_done+0x98/0xa0 > [ 0.000000] [0000000000000000] (null)
looks like we need to increase MAX_EARLY_RES_X in kernel/early_res.c
/* * need to make sure this one is bigger enough before * find_fw_memmap_area could be used */ #define MAX_EARLY_RES_X 32
struct early_res { u64 start, end; char name[15]; char overlap_ok; }; static struct early_res early_res_x[MAX_EARLY_RES_X] __initdata;
static int max_early_res __initdata = MAX_EARLY_RES_X;
or can you check if setup_memory_map() can be moved that early? (try to use early_param for mem=, so need to move that earlier)...
YH
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