Date: Mon, 04 Oct 2010 19:30:21 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: David Wolfskill <david@catwhisker.org>, current@freebsd.org Subject: Re: [geom, cam] Hang near end of kernel probes since r213267 (likely earlier) Message-ID: <4CAA011D.1070401@icyb.net.ua> In-Reply-To: <20101004161415.GF1410@albert.catwhisker.org> References: <20101001233001.GG1535@albert.catwhisker.org> <20101002013344.GI1535@albert.catwhisker.org> <AANLkTiny8TxsT0jObNqF7Jnkp-wrPBSecp_Y3%2BnKazNg@mail.gmail.com> <20101002033859.GK1535@albert.catwhisker.org> <20101003112859.GW1535@albert.catwhisker.org> <4CA86E73.9080707@icyb.net.ua> <20101003131409.GX1535@albert.catwhisker.org> <4CA906EB.5090305@freebsd.org> <20101004004910.GD1410@albert.catwhisker.org> <4CA985D2.3000805@icyb.net.ua> <20101004161415.GF1410@albert.catwhisker.org>
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on 04/10/2010 19:14 David Wolfskill said the following: > On Mon, Oct 04, 2010 at 10:44:18AM +0300, Andriy Gapon wrote: >> ... >> Interesting! > > :-} > >> So, init thread is blocked in vfs_mountroot()->g_waitidle() waiting for geom to >> complete probing cd device, but the latter is blocked in cam_periph_getccb() >> waiting for a ccb. >> Can you try to reproduce this again and examine other thread for anything >> interesting in geom/cam department? Thread named as "xpt_thrd" might be of >> particular interest. > > Yes; I can do that. Bearing in mind that each of us has a finite > number of keystrokes in his (or her) life, typing all that stuff > by hand, though, tends to eat into that upper limit a bit faster than > most other forms of recreation do. :-} > > Is there a way I can use USB or firewire in a way similar to a serial > console? The laptop has both of those (though I only have connectors > for USB at the moment), and does not have a DB9 (let alone a DB25) > serial port. I'd welcome a pointer. You should be able to use firewire console. I have never done that myself, so can't help with setting it up. BTW, personally for me links to screenshots (e.g. taken with a digital camera) are OK. -- Andriy Gapon
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