Date: Sat, 24 Oct 2009 19:07:00 +0000 From: "b. f." <bf1783@googlemail.com> To: areilly@bigpond.net.au Cc: freebsd-stable@FreeBSD.org Subject: Re: Some questions about da0 on USB2 (recent bad behaviour) Message-ID: <d873d5be0910241207o2ae4be8ah6db9a7996581ec69@mail.gmail.com>
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>That is: it seems to work fine for some fraction of a minute >(doesn't seem to be longer than a minute, anyway), and then >stops completely for several minutes (processes reading or >writing sit in "D" state in ps) and then starts again, after >logging "Request completed with CAM_REQ_CMP_ERR\nRetrying >Command". In the past week or so, Alexander Motin (mav@FreeBSD.org) and Andrew Thompson (thompsa@FreeBSD.org) have made a number of related changes to cam and usb in the P4 repository, and in 9-CURRENT. Some of these may address your problem. I'm not sure when they will be back-ported to 8.X. You may wish to try out the latest version of -CURRENT, to see if it solves your problem(s); or to contact them. b.
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