Nathan Lynch wrote:
> Yinghai Lu <yinghai@xxxxxxxxxx> writes:
>>> I bisected to the commit containing this change. Reverting fixes the
>>> problem.
>>>
>> can you use following patch to see what happens to that nodemask?
>
> # dmesg | grep node_states
> before clear: node_states [3]: 1
> after online check: node_states [3]: 0
>
/*
* Array of node states.
*/
nodemask_t node_states[NR_NODE_STATES] __read_mostly = {
[N_POSSIBLE] = NODE_MASK_ALL,
[N_ONLINE] = { { [0] = 1UL } },
#ifndef CONFIG_NUMA
[N_NORMAL_MEMORY] = { { [0] = 1UL } },
#ifdef CONFIG_HIGHMEM
[N_HIGH_MEMORY] = { { [0] = 1UL } },
#endif
[N_CPU] = { { [0] = 1UL } },
#endif /* NUMA */
};
EXPORT_SYMBOL(node_states);
preset that
and
Zone PFN ranges:
DMA 0x00000000 -> 0x00001000
Normal 0x00001000 -> 0x0001fff0
HighMem 0x0001fff0 -> 0x0001fff0
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
0: 0x00000000 -> 0x0000009f
0: 0x00000100 -> 0x0001fff0
before clear: node_states [3]: 1
On node 0 totalpages: 130959
free_area_init_node: node 0, pgdat c0976960, node_mem_map c1151000
DMA zone: 60 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 3939 pages, LIFO batch:0
Normal zone: 1860 pages used for memmap
Normal zone: 125100 pages, LIFO batch:31
after online check: node_states [3]: 0
you don't have high mem, so we should it.
really hate those preset value assume node 0 has RAM...
YH
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