Date: Wed, 2 Dec 2009 09:43:15 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-hardware@freebsd.org Cc: Charles Owens <cowens@greatbaysoftware.com> Subject: Re: USB bus setup error with PAE (was USB keyboard flaky with PAE kernel, 7.1) Message-ID: <200912020943.15200.jhb@freebsd.org> In-Reply-To: <4B156C80.7090706@greatbaysoftware.com> References: <4B070F07.8010600@greatbaysoftware.com> <4B156C80.7090706@greatbaysoftware.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday 01 December 2009 2:20:32 pm Charles Owens wrote: > Charles Owens wrote: > > Howdy, > > > > I'm still digging into it, put preliminary testing is showing that > > with a PAE-enabled 7.1-RELEASE-p8 kernel a USB keyboard functions only > > occasionally, if you're lucky. This flakiness is being seen with > > several different server models that we support (HP and IBM, all Xeon > > based). If we boot a non-PAE kernel then the USB keyboard is rock solid. > > My initial report was entirely too broad --- an unrelated problem was > confusing things. I can now report that this problem appears limited to > only the IBM System x3550 M2. With a PAE-enabled kernel initialization > of some of the USB buses fails. From an external perspective, this > results in the rear USB port being non-functional, while the two front > USB ports work fine. For some reason, though, when booting the same PAE > kernel from a CD none of the USB ports function. > > In previous posting ( > http://docs.freebsd.org/cgi/mid.cgi?4B0D14CB.1010000 ) I included output > of usbdevs and boot log when running the PAE-enabled kernel. Note the > "root hub error" messages in boot log. > > Below I'll repeat the same info when running a non-PAE kernel. > > Any thoughts as to what the story is here... and suggestions for > resolution? Thanks in advance. Would you be able to test an 8.0 kernel with PAE enabled? 8.0 has a completely rewritten USB stack, so there is a chance that the bug in 7 might not be present in 8. You can also try posting on freebsd-usb@ since the folks working on the USB drivers tend to hang out on that list. -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200912020943.15200.jhb>