On Sun, 10 Aug 2014 14:12:03 +0800 Tang Chen <tangchen@xxxxxxxxxxxxxx> wrote: > In memblock_find_in_range_node(), we defeind ret as int. But it shoule > be phys_addr_t because it is used to store the return value from > __memblock_find_range_bottom_up(). > > The bug has not been triggered because when allocating low memory near > the kernel end, the "int ret" won't turn out to be minus. When we started > to allocate memory on other nodes, and the "int ret" could be minus. > Then the kernel will panic. > > A simple way to reproduce this: comment out the following code in numa_init(), > > memblock_set_bottom_up(false); > > and the kernel won't boot. Which kernel versions need this fix? -- 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>