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Re: [Qemu-devel] [PATCH] makefile: detect corrupted elf files

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] makefile: detect corrupted elf files
Date: Wed, 22 May 2013 10:43:45 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6

Il 22/05/2013 10:38, Peter Maydell ha scritto:
> On 22 May 2013 09:37, Michael S. Tsirkin <address@hidden> wrote:
>> It's my fault for running -rc kernels all the time I guess, I get
>> crashes kind of often, and losing more time on make clean
>> on top of reboot annoys me.
>> But we actually could make it robust, even against OS crash. Output to a
>> temporary file then rename.  This hack won't be needed then.
> I think that would be better implemented in the compiler/linker :-)
> Alternatively, stop doing compiles on horribly unstable kernels.

Any filesystem with delayed writes can do this if you have a power loss.

But I agree that this patch doesn't solve the problem.  For example, if
you get stale files in the ccache directory even zapping the build
directory won't do.


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