I am currently experiencing some problems with USB. I have a SATA hdd connected
to my computer with a USB adapter. When using rtorrent on a good connection
with 2-3 MB/s after a minute or two all file system operations on the USB hdd
get stalled from time to time for several seconds. Finally after 3-4 minutes
all operations get stalled and when I unplug the drive most of the time my
computer reboots. I am using FreeBSD 8.2-STABLE #0: Sat Oct 22 16:07:57 CEST
2011. I am not experiencing this problems when not having rtorrent on: watching
a movie, compiling ports ... etc. The stall seems also to occur when rtorrent
is checking the hashes. Btw I have tried the same with a USB flash drive and am
experiencing the same kind of stall when doing rtorrent.
Since I don't seem to have had the same kind of problems 1 or 2 years ago with
FreeBSD 8.x and the same drive with the same adapter, I would guess that some
regression has been introduced or my hardware does not work properly any more.
Moreover I need to connect the drive to my laptop before powering up the
FreeBSD otherwise it sees sometimes only a USB device with no drive attached to
it and "camcontrol rescan all" gets stalled until I unplug the drive. I am not
experiencing this particular problem when connecting the drive via a USB hub to
Does somebody have a solution for one of the above?
Please CC me since I am not subscribed.
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