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Groups > linux.kernel > #1503344
| From | Kees Cook <keescook@chromium.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes |
| Date | 2016-10-18 23:00 +0200 |
| Message-ID | <stJEm-79N-7@gated-at.bofh.it> (permalink) |
| References | <ssGfv-5Xy-1@gated-at.bofh.it> <stnNw-Pb-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Oct 17, 2016 at 2:37 PM, Emese Revfy <re.emese@gmail.com> wrote: > On Sun, 16 Oct 2016 06:52:16 +0800 > kbuild test robot <fengguang.wu@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
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drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes kbuild test robot <fengguang.wu@intel.com> - 2016-10-16 01:10 +0200
Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes Emese Revfy <re.emese@gmail.com> - 2016-10-17 23:40 +0200
Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes Kees Cook <keescook@chromium.org> - 2016-10-18 23:00 +0200
Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes Emese Revfy <re.emese@gmail.com> - 2016-10-18 23:40 +0200
Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes Kees Cook <keescook@chromium.org> - 2016-10-19 00:10 +0200
Re: drivers/pci/hotplug/ibmphp_ebda.c:409:1: warning: the frame size of 1108 bytes is larger than 1024 bytes Emese Revfy <re.emese@gmail.com> - 2016-10-19 00:20 +0200
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