Date: Sun, 01 Mar 2009 12:16:20 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: thompsa@FreeBSD.org Cc: usb@FreeBSD.org Subject: Re: USB2+umass: root mount fails Message-ID: <20090301.121620.-2073256982.imp@bsdimp.com> In-Reply-To: <20090301190057.GD90301@citylink.fud.org.nz> References: <ACB7DFF1-6C8E-4936-9BD9-BB2FD375F3BB@mac.com> <20090301190057.GD90301@citylink.fud.org.nz>
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In message: <20090301190057.GD90301@citylink.fud.org.nz>
Andrew Thompson <thompsa@freebsd.org> writes:
: On Mon, Feb 16, 2009 at 01:53:36PM -0800, Marcel Moolenaar wrote:
: > It appears that the root mount isn't serialized with USB discovery
: > in the same way it was under USB1.
:
: It seems that this is not completly resolved with the root mount hold in
: r188907 as geom may not have tasted the partition tables when
: vfs_rootmount is woken. USB still needs to finish its bus probe earlier
: on the boot process.
This sounds like a more fundamental ordering problem. It sounds like
we need two gates here. (1) All the underlying devices are there and
(2) All tasting is done.
Warner
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