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Bug#757941: busybox-static: DNS resolver stopped working in busybox-static version 1.22.0-7

Michael Tokarev <mjt@tls.msk.ru> (2014-08-12):
> Control: tag -1 + confirmed
> 12.08.2014 19:30, Diederik de Haas wrote:
> > Package: busybox-static
> > Version: 1:1.22.0-8
> > Severity: important
> > 
> > When trying to ping an address, like debian.org, with busybox-static you
> > get a "ping: bad address 'debian.org'" error.
> Yes, this is what we have.  Current busybox-static in wheezy+ does not
> work.
> What's interesting - I compiled busybox-static on curent wheezy host,
> the resulting binary works fine.  But the same busybox compiled on
> jessie does not work.  Also, it is specific to amd64 arch, it does not
> happen on i386 (from 2 variants of x86 arches).

Smells like a possible compiler optimization bug? (The relevant code
might be buggy and falling into undefined behaviour; meaning not a
compiler bug.) Should be easy to check by building at -O0.


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