From: dhylands@gmail.com (Dave Hylands)
To: kernelnewbies@lists.kernelnewbies.org
Subject: debugging enabled? (was Re: KGDB command line options not working for kernel 2.6.32)
Date: Tue, 28 Jun 2011 10:41:08 -0700 [thread overview]
Message-ID: <BANLkTinR35HMHRJSUZukiusWPo8T=J3TaQ@mail.gmail.com> (raw)
In-Reply-To: <BANLkTineCVLz-3+a98b9iT490u4RG6Satg@mail.gmail.com>
Hi Prabhu,
On Mon, Jun 27, 2011 at 11:25 PM, Prabhu nath <gprabhunath@gmail.com> wrote:
> Hi Mulyadi/Spiro,
>
> ?????????? Can you please help me in partially enabling/disabling
> optimizations, because I was consistently hitting at the below problem when
> building the kernel after disabling the optimization
>
> ERROR: "intel_gmbus_is_forced_bit" [drivers/gpu/drm/i915/i915.ko] undefined!
> ERROR: "__udivdi3" [drivers/gpu/drm/i915/i915.ko] undefined!
> make[2]: *** [__modpost] Error 1
> make[1]: *** [modules] Error 2
> make: *** [sub-make] Error 2
This is happening because some code is trying to do 64-bit division
which isn't supported in the kernel. The code needs to be modified to
use do_div macro (which is available in either asm/div64.h).
--
Dave Hylands
Shuswap, BC, Canada
http://www.davehylands.com
prev parent reply other threads:[~2011-06-28 17:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 14:51 debugging enabled? (was Re: KGDB command line options not working for kernel 2.6.32) Mulyadi Santosa
2011-06-27 18:40 ` Spiro Trikaliotis
2011-06-28 1:51 ` Mulyadi Santosa
2011-06-28 6:25 ` Prabhu nath
2011-06-28 10:11 ` Mulyadi Santosa
2011-06-28 17:41 ` Dave Hylands [this message]
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