In trying to build numerous targets, I've managed to reproduce the problem with KALLSYMS enough to come up with some ideas for a fix. Neither of these fixes affects the size of the kernel. I've compile tested all of the defconfigs that are present in the kernel, and neither causes any new compilation failures (several don't build). The first fix adjusts the alignment of the per-cpu section, in the cases where it is blank. If it has the same alignment as the following section, there won't be inconsistencies in the position when the kallsyms data is inserted. The second fix just eliminates the per_cpu section on non-smp builds. Either case only affects the position of an empty section, and should have no effect on the position or size of anything else. I think the second patch (eliminate the per-cpu section) is cleaner, but I'm concerned about something I've missed or changed. The second patch does make the per-cpu section smaller (since some symbols are left out). It also affects the position of init_end, and may need a page alignment before it. But, this would also suggest that currently, on SMP, there might be a page that isn't being freed. David Brown (1): ARM: Prevent KALLSYM size mismatch on ARM. arch/arm/kernel/vmlinux.lds.S | 3 +++ 1 file changed, 3 insertions(+) -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
