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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040422

Description of problem:
After playing a little bit with FC2T3 (kernel-2.6.5-1.327) and several
hours of uptime the screensaver started. So I moved my mouse to go
back to my session. Now the mouse pointer was completely black
colored. Everything else was ok. After logging out my USB mouse
stopped working. My second mouse (PS/2) still worked so I logged in
again and during GNOME startup the system totally hung.

After reboot I found these kernel messages in /var/log/messages:

kernel: irq 11: nobody cared! (screaming interrupt?)
kernel: Call Trace:
kernel:  [<02107c61>] __report_bad_irq+0x2b/0x67
kernel:  [<02107cf9>] note_interrupt+0x43/0x66
kernel:  [<0210818c>] do_IRQ+0x248/0x303
kernel:  [<021229d0>] __do_softirq+0x2c/0x73
kernel:  [<02108e48>] do_softirq+0x46/0x4d
kernel:  =======================
kernel:  [<0210823b>] do_IRQ+0x2f7/0x303
kernel:
kernel: handlers:
kernel: [<228aa2d1>] (ahc_linux_isr+0x0/0x2fb [aic7xxx])
kernel: [<0225f225>] (usb_hcd_irq+0x0/0x4b)
kernel: [<0225f225>] (usb_hcd_irq+0x0/0x4b)
kernel: Disabling IRQ #11
kernel: agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
kernel: agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
kernel: agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode


Version-Release number of selected component (if applicable):


How reproducible:
Sometimes

Steps to Reproduce:
1. sporadic events are hard to reproduce
2.
3.
    

Additional info: