Date: Tue, 27 Dec 2011 10:36:24 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Cc: Momchil Ivanov <momchil@xaxo.eu> Subject: Re: USB problems with 8.2 Message-ID: <201112271036.24758.hselasky@c2i.net> In-Reply-To: <86ipl3dl5q.wl%momchil@xaxo.eu> References: <86ipl3dl5q.wl%momchil@xaxo.eu>
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On Monday 26 December 2011 23:26:41 Momchil Ivanov wrote: > Hi, > > 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 my laptop. > > Does somebody have a solution for one of the above? > > Please CC me since I am not subscribed. Have you tried to use the no-synchronize cache quirk for your drive? Are you using 8-stable? --HPS
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