Comment 29 for bug 2056461

Created attachment 306437
Test case framework

Although I've not get managed to reproduce the bug with the "minimal" (ha!) reproducer script and tests it is in a state now that others should be able to easily execute it, and add more tests, and otherwise try to replicate the bug.

Once extracted read ./bug218916-reproducer.bash or get it to explain how to use it with:

./bug218917-reproducer.bash

So far it has not reproduced the bug, but it is a framweork and one can easily add additional test scripts (that are source-d) in ./bug218916.d/

Currently it has test_autopkgtest that replicates the sequence of copy{down,up} operations autopkgtest does but without the autopkgtest infrastructure, and test_tar that does the single copydown of a directory (which causes the transfer to be piped via "tar").

It doesn't execute quite as fast native autopkgtest because it has to use a "read -t 0.5" timeout for extracing replies from the controlling ssh bash coproc. That was implemented to avoid repeatedly suffering the delay of creating an ssh session for every transfer operation.