Messages in this thread |  | | From | David Brownell <> | | Subject | Re: WARNING: at drivers/usb/host/ehci-hcd.c:287 | | Date | Tue, 4 Mar 2008 12:51:06 -0800 |
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On Tuesday 04 March 2008, Alan Stern wrote: > Dave, it seems to me that this must be an example of a race between the > iaa watchdog timer expiring and end_unlink_async() running. It's not > good enough for end_unlink_async() to call iaa_watchdog_done(), because > on an SMP system the timer may already have fired and the watchdog > routine may be spinning on ehci->lock.
Right.
> How about replacing the > > WARN_ON(!ehci->reclaim);
Or bettter yet, just removing it entirely. ISTR doing that in some patches I've not yet sent for merging, and expect that's what my preferred fix will be ...
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