Cause of g-i crashing on AMD64 at VT switch found

[Attilio Fiandrotti <attilio.fiandrotti@gmail.com>]

Hi

i recently put my hands on an AMD64 machine, so i had the chance to run 
the installer from a chroot and i noticed that the crash produces this log

libgcc_s.so.1 must be installed for pthread_cancel to work
(!) [ 5905:    0.000] --> Caught signal 6 (unknown origin) <--
libgcc_s.so.1 must be installed for pthread_cancel to work
Aborted

adding this library (and full libc) to the chroot prevents the crash.

Try this by yourself

- boot an amd64 image with DEBIAN_FRONTEND=newt
- proceed with installation process until full libc6 is unpacked
- wget libgcc_s.so.1 into the installer
- export DEBIAN_FRONTEND=gtk
- debian-installer

now you should be able to chvt without crashing anymore.

Cc'ing debian-boot and directfb-dev (dok, it looks like it's not your 
cross to bear! :)

Attilio

ps

thanks to gg and fog who kindly provided the AMD64 testing machine!