Date: Fri, 11 Feb 2011 07:46:08 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Benjamin Kaduk <kaduk@mit.edu> Subject: Re: tale of a disappearing mouse Message-ID: <201102110746.08264.jhb@freebsd.org> In-Reply-To: <alpine.GSO.1.10.1102102230030.2296@multics.mit.edu> References: <alpine.GSO.1.10.1102102230030.2296@multics.mit.edu>
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On Thursday, February 10, 2011 10:31:45 pm Benjamin Kaduk wrote: > Dear all, > > I've been experiencing this issue for quite some time, but never really > managed to collect all the data that seemed useful in one place for the > same kernel. I think I now have enough to ask for help. > > Sometimes, when I boot my laptop (Lenovo T400), my pointing device will > just ... not be probed. Early on, this seemed to happen maybe half the > time, though recently it has been much less common. (Possibly correlated > to the presence of an OpenAFS client on this machine, which makes no > sense.) > > Verbose dmesg for the mouse and nomouse case may be found at: > http://web.mit.edu/afs/sipb/user/kaduk/freebsd/hysteresis/ > > The relevant-seeming portion of the diff is: > @@ -602,10 +602,16 @@ > psm0: unable to allocate IRQ > psmcpnp0: <PS/2 mouse port> irq 12 on acpi0 > psm0: current command byte:0047 > -psm0: failed to reset the aux device. Hmm, I think this is causing the attach to fail and is probably the root cause? I'm not an expert on PS/2 devices though, so I'd probably start instrumenting that code to figure out exactly what is failing and maybe try making a timeout longer, etc.? -- John Baldwin
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