Re: [linux-usb-devel] [PATCH] Ohci-hcd: fix endless loop (second take)

From: David Brownell
Date: Fri Nov 26 2004 - 14:19:06 EST


On Friday 26 November 2004 02:30, Colin Leroy wrote:
> @@ -375,6 +375,11 @@
> spin_unlock_irqrestore (&ohci->lock, flags);
> set_current_state (TASK_UNINTERRUPTIBLE);
> schedule_timeout (1);
> + if (limit < 1000) {
> + ohci_warn (ohci, "Can't recover, restarting.\n");
> + ohci_restart(ohci);
> + return;
> + }

So instead of waiting a moment for the ED to finish
its normal processing and move from state ED_UNLINK
into ED_IDLE, you want to always clobber the whole
USB device tree attached to that bus? That'd happen
quite routinely.

This isn't a good patch either... maybe your best
bet would be to find out why the IRQs stopped getting
delivered.

- Dave
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