I uploaded a corrupted tarball and get a blank screen from the server instead of a useful error. I also get this in the server logs
2009-04-12 21:12:35-0700 [-] cd "/Users/wstein/.sage/temp/teragon.local/61279/dir_1"; tar -jxf "/Users/wstein/.sage/temp/teragon.local/61279/dir_0/Homework_1____Devon_McMinn.sws"
bzip2: Data integrity error when decompressing.
Input file = (stdin), output file = (stdout)
It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.
You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.
tar: Child returned status 2
tar: Error exit delayed from previous errors
CC: @williamstein
Component: notebook
Issue created by migration from https://trac.sagemath.org/ticket/5773