Urgent Cryptswap Bug!

Scott Kitterman ubuntu at kitterman.com
Wed Oct 17 20:27:30 UTC 2012


On Wednesday, October 17, 2012 11:22:21 AM Braden Wolfe wrote:
> Hi all,
> As of last night I finished up allbeta bug testing for 12.10 beta, as
> the relase is tomorrow. Everything on i386, x32, x64, and x86 work
> fine, wth one exception:
> On AMD Single Core mobile processors, Cryptswap does not write
> properly. During the Ubuntu boot screen, it says 'Crypswap/1 is not
> present' and says I can wait to write or skip. This hapens every time
> I boot weather I execute manual control or have the system write it. I
> have not found any soloutions to this issue, and it is a serious
> security issue for encryption savvy user. Hopefully this issue can be
> resolved quickly...hope this helps!
> -Braden W.
> 
> NOTE: I had this issue on 12.04 and 12.04.1 as well.

I see this issue on and off.  It's a race condition in the boot process.  It is 
not a security issue because if you skip, you don't have access to the 
encrypted area, so there's no information exposure.

For me, if I wait a few seconds it just goes away on it's own.

Scott K




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