Date: Thu, 25 Sep 2003 21:31:43 -0700 From: Brandon Fosdick <bfoz@terrandev.com> To: Andrew Atrens <atrens@nortelnetworks.com> Cc: stable@freebsd.org Subject: Re: fix/workaround for usb probe lockups on nForce2 mbs Message-ID: <3F73C12F.3020902@terrandev.com> In-Reply-To: <3F72659E.8090809@nortelnetworks.com> References: <3F72659E.8090809@nortelnetworks.com>
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Andrew Atrens wrote: > > All, > > The attached patch fixes the boot lockups I've been experiencing on my > nForce2 (A7N8X-Deluxe) motherboards when usb devices are on the bus at > boot time. > > Looks like something in usb_explore is (inadvertently?) enabling > interrupts if it detects a device on a port. The fix is, during hub > attach, to not assume that interrupts are off when we access the hub in > 'polling' mode. > > Not sure if this is a fix or a workaround. I'll leave that to the usb > gods to decide ... > > At any rate, I'd appreciate some feedback ... nForce2 users, does this > work for you ? It worked for me. I had to do a full buildworld, just doing buildkernel wasn't enough. Thanks for the patch. At this point I'm not sure if I want to try the patch from Ian Dowse since its working now and my USB hub is showing up as an OHCI.
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