Unhappy Xorg upgrade

[Bruce M. Simpson]

Robert,

First, thanks for all your dedicated work so far on the Xorg ports.

I realize this upgrade has been somewhat fraught with unexpected issues.

FWIW, things are not greener on the Linux side of the fence; many Ubuntu 
and Debian users have reported issues with the newer Xorg and in 
particular hald.

Robert Noland wrote:
> ...
>> I still see the USB symptoms with xorg-server port as of today -- forced 
>> rebuild with libpciaccess also. So amd64 is still regressed -- USB is 
>> totally unusable there after X is started. My theory was that somehow 
>> Xorg was stomping on the USB controller registers on this machine. The 
>> USB controller on this box is ALi, card=0x81561043.
>>     
>
> Is your usb sharing interrupts with the video card?
>   

Yes, it appears so. This is an ASUS Vintage AH-1, uniprocessor amd64 box 
w/ioapic enabled

from devinfo -r (abbreviated):
ohci0 17
ohci1 18
ohci2 19
ehci0 23

lspci -v jibes with devinfo -r -- the primary head got IRQ 18, the 
secondary IRQ 255.

It appears msk0 is also sharing IRQ 18, though I haven't seen any 
problems with networking; mskc0, however, is then configured to use MSI 
(pseudo IRQ 256, 258), it is a PCI-e device.

When the system starts, the drm module has not been loaded, so the 
Radeon (Sapphire X550) card hasn't been allocated its IRQ by FreeBSD.

After X starts, glxinfo and glxgers work fine. kldstat reports drm.ko 
and radeon.ko got loaded by X as I would expect. I still see no IRQ 
allocated for the radeon, either in dmesg output or in devinfo -r, 
however, vmstat -i does show drm0 as sharing IRQ 18.

At this point, I rebooted and tried manually resetting the BIOS ESCD 
table, unfortunately the BIOS on this machine won't let me tie IRQs down 
to particular devices.


> Does the issue occur if you aren't using a usb mouse?
>   

I see the USB problems regardless of the kind of USB devices plugged in, 
I continue to use a PS/2 mouse on the desktop as a workaround.

I see the bump on devel/libpciaccess re typo of rombase, and forced a 
rebuild of xorg-server against the patched libpciaccess library 
(probably not needed, as the .so ABI didn't change).

The USB problem is still present, unfortunately.

thanks,
BMS