Date: Sun, 28 Aug 2011 11:11:05 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Cc: Brett Glass <brett@lariat.net> Subject: Re: System hanging, error messages with USB drive on FreeBSD 8.1 Message-ID: <201108281111.05988.hselasky@c2i.net> In-Reply-To: <201108272342.RAA02535@lariat.net> References: <201108272342.RAA02535@lariat.net>
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On Sunday 28 August 2011 01:42:27 Brett Glass wrote: > I'm working with a FreeBSD 8.1-RELEASE/amd64 machine that's > attempting to write data to an ordinary Kingston 8 GB microSD card. > The card has been inserted into its USB adapter and plugged into a > USB port on the machine. The system is locking up repeatedly with > messages that say > > (da1:umass-sim1:1:0:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0 > (da1:umass-sim1:1:0:0): SCSI sense: Error code 0x52 > > A Web search reveals that problems like this have cropped up for > many, many FreeBSD users as far back as 4.x. But I can't seem to > find any solution (which amazes me; if there's a bug, one would > think it would have gotten some attention). Do I have to abandon > the use of FreeBSD with USB thumb drives (or maybe with USB > altogether)? Hope not, but I may have to if I can't get this fixed. > > --Brett Glass Hi, Can try first using: usbconfig -d X.Y add_quirk UQ_MSC_NO_SYNC_CACHE Then replug your device. --HPS
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