Date: Thu, 16 Nov 2006 03:34:24 -0500 From: "Stephane E. Potvin" <sepotvin@videotron.ca> To: Doug Barton <dougb@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: EHCI problem on -current, and unknown devs Message-ID: <455C2290.6010907@videotron.ca> In-Reply-To: <4564996D.50808@FreeBSD.org> References: <4564996D.50808@FreeBSD.org>
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Doug Barton wrote: > [ No response from the -usb list, so I'll try here. ] > > Howdy, > > I have a new Dell Latitude D620, and using recent -current I get this: > > ehci0: <Intel 82801GB/R (ICH7) USB 2.0 controller> mem > 0xffa80000-0xffa803ff irq 20 at device 29.7 on pci0 > ehci0: Could not map memory > device_attach: ehci0 attach returned 6 > > FWIW, I also saw a user on the -stable list report this same problem. > I'm assuming this is bad, but what to do about it? > > > I'm also getting some unknown devices: > > uhub4: <vendor 0x413c product 0xa005, class 9/0, rev 2.00/50.18, addr > 2> on uhub0 > uhub5: <vendor 0x0b97 product 0x7761, class 9/0, rev 1.10/1.10, addr > 3> on uhub4 > ugen2: <vendor 0x413c product 0x8103, class 224/1, rev 2.00/24.22, > addr 6> on uhub4 > uhub6: <vendor 0x413c product 0x0058, class 9/0, rev 2.00/0.00, addr > 2> on uhub3 > > Vendor ID 0x413c is Dell, and is already in the usbdevs file. The > other vendor is O2, and I got their ID for the attached patch from the > list at http://www.usb.org/developers/tools. The 0x0058 device is > already in our usbdevs file, it's the port replicator (docking > station) that the laptop is plugged into currently. I added the 0x8103 > device in the attached patch based on an entry in the NetBSD usbdevs > file. (The entry makes sense to me as well, since I have one of those.) > > So I have two questions ... for the devices (and vendors) that are > already in my local usbdevs file, why are they still showing up by ID? > And how do I find the device IDs for the two unknown devices? I > imagine that the O2 device is related to my built in smart card > reader, not sure about the other one. > Hi Doug, I had the same problem with my Dell Inspiron 9400 and fixed it using the following patch: Index: sys/kern/subr_rman.c =================================================================== RCS file: /home/FreeBSD/ncvs/src/sys/kern/subr_rman.c,v retrieving revision 1.53 diff -u -r1.53 subr_rman.c --- sys/kern/subr_rman.c 11 Sep 2006 19:31:52 -0000 1.53 +++ sys/kern/subr_rman.c 2 Nov 2006 03:05:34 -0000 @@ -170,7 +170,7 @@ /* Skip entries before us. */ for (s = TAILQ_FIRST(&rm->rm_list); - s && s->r_end + 1 < r->r_start; + s && s->r_end < r->r_start; s = TAILQ_NEXT(s, r_link)) ; This code was added in revision 1.53 when support for intelligent merging was added. When r_end is equal to UINT_MAX, adding one will cause it to overflow, creating quite a mess in the entries ordering. I'm not sure the fix I did is completely correct as I didn't had time to check if the +1 is needed at all in this case. At least it fixed the problem for me. Regards, Steph
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