Hi Simon, On Wed, Mar 22, 2017 at 4:06 AM, Simon Glass <s...@chromium.org> wrote: > Hi Bin, > > On 16 March 2017 at 08:26, Bin Meng <bmeng...@gmail.com> wrote: >> U-Boot itself as well as everything that is consumed by U-Boot (like >> heap, stack, dtb, etc) needs to be reserved and reported in the E820 >> table when S3 resume is on. >> >> Signed-off-by: Bin Meng <bmeng...@gmail.com> >> --- >> >> arch/x86/Kconfig | 8 ++++++++ >> arch/x86/lib/fsp/fsp_dram.c | 12 ++++++++++++ >> 2 files changed, 20 insertions(+) > > Reviewed-by: Simon Glass <s...@chromium.org> > > Can you detect if the stack space is too small? > > It should be possible to measure the stack size easily enough - e.g. > using cpu_get_sp().
I suspect we can fill the stack memory with some magic number, and then after U-Boot boots to shell check the stack to see where the pattern ends. This practice should be done periodically as U-Boot's code base changes very rapidly. Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
