Date: Sun, 25 Jan 2009 11:55:48 -0800 From: Maxim Sobolev <sobomax@FreeBSD.org> To: Peter Jeremy <peterjeremy@optushome.com.au> Cc: freebsd-current@FreeBSD.org Subject: Re: Prblem whit USB in FreeBSD 8 Message-ID: <497CC3C4.1070708@FreeBSD.org> In-Reply-To: <20090125063441.GC1755@server.vk2pj.dyndns.org> References: <c321c71d0901240614i59258744g9eeb8d342da90662@mail.gmail.com> <200901241638.18591.hselasky@c2i.net> <497B7A80.4060002@FreeBSD.org> <20090125063441.GC1755@server.vk2pj.dyndns.org>
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Peter Jeremy wrote: > On 2009-Jan-24 12:30:56 -0800, Maxim Sobolev <sobomax@freebsd.org> wrote: >> I wonder if this situation can be handled automatically. To my ignorant >> view, our USB mass storage driver can try sending "synchronize cache" >> command and if that fails then failback to the NO_SYNCHRONIZE_CACHE >> behavior. > > This has been discussed in the past. The problem is that some drives > lock up when you send a "synchronize cache" command so this isn't a > general solution. So what? The drive that is not in the quirks won't work anyway, so that if by auto-detection you can make at least fraction of those drivers working out of the box it would be an improvement. I wonder how other operating systems (Windows, Linux) cope with this issue. Not sure about a Linux, but I really doubt Windows has anything like our quirks, yet all drives work with it. -Maxim
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