linux-kernel - Re: [BUG] kernel 2.6.33-rc4 OOPS's with large initramfs

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Date:	Sat, 20 Mar 2010 14:37:22 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Nigel Kukard <nkukard@...d.net>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] kernel 2.6.33-rc4 OOPS's with large initramfs

On 03/20/2010 01:22 PM, Nigel Kukard wrote:
> 
>     
> 
>>>> How much RAM are you giving your VM?  The default for Qemu is 128 MB,
>>>> and if you have a 110 MB initramfs it's hardly surprising that you get
>>>> an out of memory error.
>>>>       
>>> The kernel now boots where it booted for my 64bit box.
>>>
>>> The main problem though is the instant reboots for bzip2 and lzma
>>> compressed initramfs images. The change for printf to /usr/bin/printf
>>> both render the sane end result when run with the same commandline being
>>> run in the makefile, so this isn't the issue.
>>>
>>>     
>> Oh, you have *that* problem.
>>
>> What printf is being used?
> 
> coreutils 8.4 and 7.5 and bash all give me the same result for the
> commandline being run. This was just one of the things I tried and it
> didn't fix the problem.
> 
> Here is what is run from the buildlog...
>   (cat arch/x86/boot/compressed/vmlinux.bin | lzma -9 && printf
> \\150\\111\\241\\007) > arch/x86/boot/compressed/vmlinux.bin.lzma || (rm
> -f arch/x86/boot/compressed/vmlinux.bin.lzma ; false)
> 
> I tested printf out...
> # printf \\150\\111\\241\\007 | xxd
> 0000000: 6849 a107                                hI..
> 
> coreutils 7.5
> # /usr/bin/printf \\150\\111\\241\\007 | xxd
> 0000000: 6849 a107                                hI..
> 
> coreutils 8.4
> # /usr/bin/printf \\150\\111\\241\\007 | xxd
> 0000000: 6849 a107                                hI..
> 
> 
> That confirms it? its not the b0rked printf issue afaics :)
> 

Okay, so why the f*ck did you mention that instead of answering the
question I asked?  *How much memory does your VM have?*

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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