On Mon, Oct 17, 2016 at 2:37 PM, Emese Revfy <re.em...@gmail.com> wrote: > On Sun, 16 Oct 2016 06:52:16 +0800 > kbuild test robot <fengguang...@intel.com> wrote: > >> drivers/pci/hotplug/ibmphp_ebda.c: In function 'ibmphp_access_ebda': >> >> drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 >> >> bytes is larger than 1024 bytes [-Wframe-larger-than=] > > Hi, > > Thanks for the report. The problem is that these are large functions > (there are a lot of basic blocks) and the entropy plugin instruments all > basic blocks. > I think the solution is to skip these functions which contain more than n > basic blocks. > Sorry, I haven't time to fix this bug. PaX Team will fix it in PaX.
This is controlled by CONFIG_FRAME_WARN. I don't think this is a particular problem or should be avoided, but perhaps we can set the default to 2048 (as done on 64BIT) if we're building with the entropy plugin. -Kees -- Kees Cook Nexus Security