Date: Tue, 12 Feb 2013 07:50:40 -0700 From: Ian Lepore <ian@FreeBSD.org> To: Brett Wynkoop <wynkoop@wynn.com> Cc: Tim Kientzle <tim@kientzle.com>, freebsd-arm@FreeBSD.org Subject: Re: BeagleBone locked up Message-ID: <1360680640.4545.157.camel@revolution.hippie.lan> In-Reply-To: <20130211204856.713c9ee2@ivory.local> References: <20130210231709.26f122dc@ivory.local> <B4346DD4-BA90-4A2C-A2B3-D5DBB6B68942@kientzle.com> <20130211190606.1c985baf@ivory.local> <1360629932.4545.150.camel@revolution.hippie.lan> <20130211204856.713c9ee2@ivory.local>
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On Mon, 2013-02-11 at 20:48 -0500, Brett Wynkoop wrote: > On Mon, 11 Feb 2013 17:45:32 -0700 > Ian Lepore <ian@freebsd.org> wrote: > > > On Mon, 2013-02-11 at 19:06 -0500, Brett Wynkoop wrote: > > > Greeting- > > > > > > While building a kernel the Bone stopped responding on the net and > > > this is what I found on the console: > > > > > > ti_mmchs0: Error: current cmd NULL, already done? > > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 5534, size: > > > 8192 > > [...] > > > ti_mmchs0: Error: current cmd NULL, already done? > > > ifaddr cache = 0xc1fbd700 is deleted > > > ti_mmchs0: Error: current cmd NULL, already done? > > > ti_mmchs0: Error: current cmd NULL, already done? > > snip > > > > > That's the second report recently of indefinite wait buffer. What it > > really means is that it has been waiting more than 20 seconds to pull > > a page (or block of pages) in from swap. That plus the cmd NULL > > errors tend to point in the direction of the mmchs driver. > > > > -- Ian > > Greeting- > > I am glad that I am passing on needed feedback. I did not have to > reboot the box, just waited and the console eventually responded again > and I restarted sshd. When it gets into that sort of state, can you get a response by hitting ^T on the console (or any open ssh terminal session)? If so, the line it prints may have a clue about what it's blocked on. -- Ian
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