Re: [GIT PULL] x86/microcode for v3.9-rc1

From: Borislav Petkov
Date: Thu Feb 28 2013 - 18:52:52 EST

On Thu, Feb 28, 2013 at 11:28:06PM +0000, Yu, Fenghua wrote:
>> gcc is warning that the function is using lots of stack. In the
>> context that it is running in this is most likely not a problem
>> given how small the overrun is, but it might be worthwhile to see if
>> there is anything which can be moved out to static storage or some
>> other variant.
>> Static storage is tricky to use in this context since it runs in
>> flat linear mode (without paging, and therefore without the +3 GB
>> offset) on 32 bits.
> The errors might be related to the arrays defined
> mc_saved_tmp[MAX_UCODE_COUNT].
> Could you send your .config to me so that I can reproduce the issue?
> I don't see the issue in my build environment and in Fengguang's test
> environment.

Ok, forget it. It was some local .config file corruption which caused
include/generated/autoconf.h and include/config/auto.conf to have a line


which would cause the warnings.

The 1024 ceiling value is also consistent with the warnings complaining
about something being > 1024 bytes.

Default CONFIG_FRAME_WARN on x86_64 is 2048 which explains why those
warnings never trigger on 64-bit.

So, we all can relax ourselves, especially I :-)



Sent from a fat crate under my desk. Formatting is fine.
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