I've got the same problem: when downloading through TorrentFlux, I get kernel panics.
It did however start when I started a relatively large torrent download (about 6G). The 700MB download before that gave no problems; but that was also not a very high-demand torrent, which may indicate that the amount of leaches was relatively low.
The kernel panic states that it's crashing in python's fuse(), but I think that might be coincidence. The fuse() routine does however show up at every panic so far.
Attached is a snapshot of the screen at one of the panics with horribly reduced quality to fit this forum's requirement of 64KiB.
Hope this gets sorted in the near future! Meanwhile I've made a mental note: stay away from (large) torrents.