Date: Thu, 12 Nov 2009 10:50:03 GMT From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: freebsd-usb@FreeBSD.org Subject: Re: usb/140477: [umass] [patch] allow boot-time attachment of daX devices to GEOM_ELI Message-ID: <200911121050.nACAo3nK001667@freefall.freebsd.org>
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The following reply was made to PR usb/140477; it has been noted by GNATS. From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Eygene Ryabinkin <rea-fbsd@codelabs.ru> Cc: bug-followup@FreeBSD.org Subject: Re: usb/140477: [umass] [patch] allow boot-time attachment of daX devices to GEOM_ELI Date: Thu, 12 Nov 2009 10:43:56 +0000 (UTC) On Thu, 12 Nov 2009, Eygene Ryabinkin wrote: Hi, > Bjoern, good day. > > Thu, Nov 12, 2009 at 07:28:03AM +0000, Bjoern A. Zeeb wrote: >> has this changed recently, that it no longer works? I seem to >> remember that it had perfectly worked before this year. > > Yes, it used to work with up to 7.<anything>. But it seems that with > the new USB stack we have asynchronous discovery and attachment, so > other subsystems are started when this process isn't yet fully > completed, so root mount is getting "closer" and, for my case, root > mount typically waits only for the completion of USB tasks. > > My gut feeling is that the device discovery prior to the USBv2 was > done synchronously, but with USBv2 kernel use async callbacks. Though, > I may be wrong in this judgement. > > You can try it yourself -- plugged USB stick with geli volume that is > marked as attach-on-boot should show the current behaviour. I am doing that regularly, on HEAD (last updated in October). But I see I lacked coffee this morning, wanted to say "earlier this year". -- Bjoern A. Zeeb It will not break if you know what you are doing.help
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