mounting digital camera sometimes causes system hang

[Lennart Sorensen]

On Mon, Feb 02, 2004 at 10:47:07AM -0500, Tim Writer wrote:
> Possibly an interrupt conflict.  In my experience, the USB drivers don't like
> to share interrupts with other devices.  Enabling APIC (in the BIOS) and in
> the kernel can help.  I think it's already enabled in your RH kernel but make
> sure you aren't using the "noapic" option on the kernel command line.
> Unfortunately, it's difficult (impossible?) on most modern systems to get all
> the USB devices on their own interrupt because there are so many of them
> (usually four or more).  Some BIOSes give you some amount of control,
> allowing you to reorganize devices according to function.

Strange since I have never had a problem with USB's interrupt being
shared.  Most systems I have worked with don't even have any way to
aboid it since it's hard wired to share with something else onboard.

If something won't share IRQs with USB, I blame the other device.

Most likely is buggy usb device drivers.  Perhaps a kernel upgrade fixes
it.  There have also been a few buggy usb implementation on a few
chipsets.

Lennart Sorensen
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