Usb2 and hal issue

Joe Marcus Clarke marcus at freebsd.org
Fri Nov 14 12:02:10 PST 2008


Coleman Kane wrote:
> On Thu, 2008-11-06 at 01:38 +0100, Diego Depaoli wrote:
>> Hi all,
>> I don't know how provide further details, but on my system there is
>> something of wrong between new usb2 drivers and hald.
>> Top shows hald's cpu load at 100% while with old drivers it's 2-4%.
>> I tried rebuilding hald, loading/unloading each usb2_* device but
>> nothing changed, so I suspect the problem is located in usb2_core.
> 
> I figured out the problem, and I have a solution. As the other person
> mentioned, the device name has changed from "/dev/usb" into "/dev/usb
> " (the space is important). However, the hald daemon doesn't use libusb
> on FreeBSD. Here's a patch which tells hald to look at the new device,
> apply it to the root of your ports collection.
> 
> Additionally, I think it is a bug that hald busy-loops trying (and
> failing) to open "/dev/usb". Ideally, I think that hald should put a
> sleep in there of some sort, to give up CPU to something else.

Thanks for the patch, but hald doesn't loop trying to open /dev/usb.  It
should try and open it once.  If that fails, then the privilege_init
function for hf-usb should fail, and that would be the end of it.  Can
someone post a ktrace of gdb backtrace showing this problem?

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team	::	gnome at FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome


More information about the freebsd-current mailing list