Bug report: SZDD misreconstruction

[M-Gonzalo]

I found a file (possibly damaged) that doesn't restore losslessly

ati3duag.dl_.zip

EDIT: This is NOT the correct file; see the update.

[kaitz]

I compared decompression. Reported identical.
I extracted and compared two files, file hashes were same.
What option was used, cpu arch?

[M-Gonzalo]

You know, I had to go through the entire testbed again because I somehow swapped the original file with the reconstructed version so of course nobody could reproduce the problem. Sorry about that... -facepalm-

The origin machine was a Google colab accessed from a Jupyter notebook so I can't know for sure the exact specs, but it probably was an Ubuntu 16.04 x86-64 with ~16gb RAM and an Intel Xeon.
My machine is a Manjaro Linux up-to-date, Intel Celeron, 4 gb RAM. I used g++ 10.2 to compile paq8pxd and I included a copy of my binary just in case on the attachment, as well as a tiny bash script called error.sh, which should output the following:

1203810 ati3duag.dl_original
1206972 ati3duag.dl_extracted
2354127 ati3duag.dl_.paq8pxd89

...and the output of paq8pxd is logged to comp.log and dec.log

On the upside, this is only one of several thousands of files I checked so you can probably say paq8pxd pre-processing is pretty stable, bar the occasional misfire.

ati3duag.dl_.zip

[kaitz]

7z also fails on this file, about 850kb is extracted. If Test button is used then archiver updates file size to 543xxx and its allmoust the same as pxd fails. :)
Will add to my todo list.

[kaitz]

See v91