On Fri, Mar 21, 2014 at 08:53:23PM +0100, Johannes Stezenbach wrote: > I'm also seeing the Hash Sum mismatch often since about a week ago, > maybe since "[UPGRADE] apt:amd64 0.9.16 -> 0.9.16.1" (sid) but I did not > downgrade to confirm. However, it seems the issue is caused > by xz decompressor truncating the files. For example: I botched liblzma support in 0.9.16, which has a bug (already fixed in git) truncating xz compressed files¹, which will let you end up with this error message as well, as an uncomplete file is obviously not matching the expected hashsum – so also not related to the issue initially discribed, just another way of seeing the same error message. ¹ only certain files – aka those containing 4096 bytes of lzma/xz content which produce no output by themselves and need at least another round of 4096 input bytes… Of course non of our testcases triggered this, many xz in the archive are fine as well and pdiffs usually take care of hidding all instances which would trigger it… I love these kind of bugs… sorry about that. Best regards David Kalnischkies
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