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[Xen-bugs] [Bug 76] dom0 ACPI causes device freezing

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 76] dom0 ACPI causes device freezing
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Mon, 27 Jun 2005 22:01:13 +0000
Delivery-date: Mon, 27 Jun 2005 22:01:20 +0000
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------- Additional Comments From aliguori@xxxxxxxxxx  2005-06-27 22:01 -------
Some additional info.  The devices that lock up happen to be sharing the same
IRQ.  It's reliably reproducible if you download a large file while playing
something on the sound device.

Under a plain Linux kernel, IRQ 11 is shared by these devices without trouble.

Here's the output from /proc/interrupts

  1:      26880        Phys-irq  i8042
  7:          0        Phys-irq  parport0
  8:          2        Phys-irq  rtc
  9:        299        Phys-irq  acpi
 11:      16375        Phys-irq  ehci_hcd, uhci_hcd, uhci_hcd, uhci_hcd, Intel
82801DB-ICH4, eth0
 12:      83144        Phys-irq  i8042
 14:      14044        Phys-irq  ide0
 15:         22        Phys-irq  ide1
256:          5     Dynamic-irq  ctrl-if
257:     502068     Dynamic-irq  timer0
258:          0     Dynamic-irq  net-be-dbg
259:        487     Dynamic-irq  blkif-backend
260:         47     Dynamic-irq  vif1.0
NMI:          0
LOC:          0
ERR:          0

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