Looking over this bug, it's starting to look like some kind of a race somehow only trggered by the one set of processors. The fact that multiple apt runs are hanging suggests that it is not caused by one single broken package. The only debugging step I can think of from here is install strace (anna-install strace-udeb) and strace one of the hanging dpkg-preconfigure processes. Simply attaching strace to it after it's hung may not be enough; you might need to modify /var/lib/dpkg/info/pkgsel.postinst: - in-target sh -c "$config tasksel --new-install --debconf-apt-progress='--from 5 --to $tasksel_end --logstderr'" || ret=$? + strace -o /tmp/strace.log -ff in-target sh -c "$config tasksel --new-install --debconf-apt-progress='--from 5 --to $tasksel_end --logstderr'" || ret=$? -- see shy jo
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