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Bug#550562: Blob firmware loader corrupts filesystem



On Tue, 2010-01-12 at 04:30 -0800, Ben Wong wrote:
> I have organized this bug report so that the most important information
> is at the top so that you can stop reading as soon as you get bored.
> 
> This bug, #550562, should be reclassified as a critical bug and possibly
> merged with #560126.

I think you're right.

> This bug causes severe filesystem corruption and catastrophic loss of
> data by scribbling on the hard drives.  It is completely reproducible.
> It seems to only affect systems that use the radeon/R200_cp.bin
> firmware when it is separated from the kernel.  (Could it be that the
> binary blob didn't get copied correctly when it was split?)

I've compared them again - they're identical to the blobs previously
embedded in the driver (except for byteswapping).

When you say it 'only affect systems that use the radeon/R200_cp.bin
firmware' do you mean that you tested systems with other Radeon GPU
versions and they were not affected, or that this problem appeared after
the firmware was separated out (Debian package version 2.6.29-1)?

Ben.

-- 
Ben Hutchings
The generation of random numbers is too important to be left to chance.
                                                            - Robert Coveyou

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