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Re: Bug#771971: dpkg hangs installing "init" during upgrade from wheezy to jessie

On Sun, 2015-01-25 at 14:18:03 +0100, Guillem Jover wrote:
> On Sun, 2015-01-25 at 12:30:51 +0100, Niels Thykier wrote:
> > Just to confirm, is this correctly understood?
> > 
> >  * If you purge "x11-common libx11-6 libx11-data" before upgrading, the
> >    upgrade hangs.
> >  * If you keep "x11-common libx11-6 libx11-data" as-is, the upgrade
> >    succeeds.
> > 
> > What state are the above packages before the upgrade?
> > 
> > Can you try to reproduce this again and attach strace or/and gdb to the
> > dpkg process when it hangs to figure out what it does/where it is stuck.
> >   Based on Dominik's remark (100% cpu usage) in comment #15, I suspect
> > it is in an infinite loop.  Though I would appreciate it, if we can
> > confirm or disprove that.
> Adding -D77777 to the dpkg call through apt's DPkg::options would be
> helpful. It would also be helpful to know which process hangs, and if
> it's dpkg itself an easy recipe to reproduce this?

I just noticed this was a bug report from December, so I assume this
was possibly one of the dpkg bugs where it was busy looing (#766242
or #766322), which is now fixed?

Although those fixes migrated to testing on 2014-11-03, so I'm not
sure. It would be nice to get more information of the environment at
the time. But if it does not happen anymore then it might indeed be
fixed already. :/


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