Re: crypsetup segfaulting during luksFormat

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Lets give Milan a few days. I expect he will figure it out.
I admit, I do not understand what the issue really is either 
and I do not have gentoo. Mazbe I should take a look at it ...

Arno

On Thu, Jul 08, 2010 at 04:22:35AM +0200, Sven Eschenberg wrote:
> Okay, let's see:
> 
> gcc --version 
> gcc (Gentoo Hardened 4.4.4-r1 p1.0, pie-0.4.5) 4.4.4
> Copyright (C) 2010 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is
> NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> PURPOSE.
> 
> I am not really sure it is a problem in the source, maybe some awkward
> scenario.
> 
> If you say, the source did not change, maybe you could recommend some
> sort of testing scenario. I'd feel happy to contribute here. Currently I
> feel just stuck...
> 
> Regards
> 
> -Sven
> 
> P.S.: Last time I had to set up a mapping(initially) (as in luksFormat)
> was like 1 year ago (or somethign amog these figures)... so maybe I just
> did not hit the bug (before) in the last couple of months ...
> 
> 
> 
> 
> 
> On Wed, 2010-07-07 at 23:22 +0200, Milan Broz wrote:
> > On 07/07/2010 10:58 PM, Sven Eschenberg wrote:
> > > For starters, I'll select the easiest case, plain luksFormat without
> > > special params:
> > 
> > thanks.
> > 
> > > The segfault comes way before the 10 seconds are over, that much I can
> > > tell already. For the other info: I'm on gentoo, 10.0, hardened profile,
> > > on amd64 arch.
> > 
> > Which gcc? (gcc --version)
> > 
> > I am using gentoo (but 32bit) for upstream testing,
> > it should fail here too then:)
> > 
> > But that code is there since 1.1.0, so I guess something in gcc/glibc
> > changed probably and uncovers some old bug.
> > 
> > > Currently no core file is created, can you give me a fast shot on how I
> > > force the system to write out a core?
> > 
> > try "ulimit -c unlimited" and then run that command
> > 
> > you can also define where core files will be stored using
> > sysctl kernel.core_pattern=/<some dir>/core 
> > 
> > Milan
> > _______________________________________________
> > dm-crypt mailing list
> > dm-crypt@xxxxxxxx
> > http://www.saout.de/mailman/listinfo/dm-crypt
> 
> 
> _______________________________________________
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> dm-crypt@xxxxxxxx
> http://www.saout.de/mailman/listinfo/dm-crypt
> 

-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 
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