linux-kernel - Re: Linux 2.6.24-rc7 Build-Failure at __you_cannot_kmalloc_that

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Message-ID: <47833231.3080801@linux.vnet.ibm.com>
Date:	Tue, 08 Jan 2008 13:50:01 +0530
From:	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	bunk@...nel.org, clameter@....com,
	Andy Whitcroft <apw@...dowen.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: Linux 2.6.24-rc7 Build-Failure at __you_cannot_kmalloc_that_much

Andrew Morton wrote:
> On Mon, 07 Jan 2008 16:06:20 +0530 Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com> wrote:
> 
>> The defconfig make fails on x86_64 (AMD box) with following error
>>
>>   CHK     include/linux/utsrelease.h
>>   CALL    scripts/checksyscalls.sh
>>   CHK     include/linux/compile.h
>>   GEN     .version
>>   CHK     include/linux/compile.h
>>   UPD     include/linux/compile.h
>>   CC      init/version.o
>>   LD      init/built-in.o
>>   LD      .tmp_vmlinux1
>> drivers/built-in.o(.init.text+0x8d76): In function `dmi_id_init':
>> : undefined reference to `__you_cannot_kmalloc_that_much'
>> make: *** [.tmp_vmlinux1] Error 1
>>
>>
>> # gcc --version
>> gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-59)
>>
>> This was reported by Adrian Bunk http://lkml.org/lkml/2007/12/1/39
> 
> That's odd.  afacit the only kmalloc in dmi_id_init() is
> 
>         dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL);
> 
> and even gcc-3.2.3 should be able to get that right.
> 
> Could you please a) verify that simply removing that line fixes the build
> error and then b) try to find some way of fixing it?
> 
> Try replacing `sizeof(*dmi_dev)' with `sizeof(struct dmi_device_attribute)'
> and any other tricks you can think of to try to make the compiler process
> the code differently.
> 

removing the line fixes the issue, but changing the sizeof(*dmi_dev) to
sizeof(struct device) is not helping.

-- 
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.
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