I'm having trouble with this version.
well probably not only with this version because i upgraded directly from 5.6.3r to 5.8.4r.
the problem is that i'm upping a 100 MB file splitted in samaller .zip files to my server directly from my hdd, in local mode to test the server.
All runs fine; upping fine, sfv checking fine.. but suddenly it stops at 4th or 5th file and hangs there. and the file it never get totally upped.
i'm just upping a release wich is 45 MB splitted in 10 files..
all goes well... progress bar fills ok, release gets checked ok... but then suddenly at file number 5, to name it again, at 50% percent of progress bar..
ioftpd just hangs for a minute or so and the rest of the files aren't uploaded.
if i disable zip checking psio it uploads correctly.
i'm afraid the problem must be in php somewhere, not in your code maybe.