[Pkg-xen-devel] double free or corruption in xl 4.2

Ian Campbell ijc at hellion.org.uk
Sat Aug 17 10:37:26 UTC 2013


On Sat, 2013-08-17 at 09:35 +0200, Olivier Bonvalet wrote:
> 
> Is it an xl bug, that I should report upstream ? 

Well it's certainly a bug but it is hard to say if it is upstream or if
it is caused by (perhaps partially incomplete) backports in the
packaging. Before reporting upstream it would ideally be reproduced with
either the latest 4.2.x or the development branch.

Do you have symbols for the xl binary? That might make the backtrace
more useful.

"xl -vvv create" may also give some information about what was going on.

You could also try running under valgrind and see if that can pinpoint
the issue. If it is crashing early enough then maybe regular valrind
will work, but if it is happening later (specifically after any
hypercalls are made) then you would need the new upstream valgrind
support for knowing about Xen -- this is only in svn though.

Ian.




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