usb panic

Matthew Dillon dillon at apollo.backplane.com
Tue Jan 13 14:08:33 PST 2004


:Hi,
:
:Here's part of the trace from my usb panic. Happens during boot, when my flash stick is plugged in -

    There are a couple of delayed-timeout crashes that can occur with USB
    devices.  What happens is that the USB device schedules a delayed timeout
    on a related structue but then unexpectedly detaches and it's related
    structures are freed before the timeout occurs.

    Is there any chance you can get a crash dump?  It may not be possible
    due to being so early in the boot sequence.

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>

:--- trap 0xc eip = 0, esp = 0xc221dce8, ebp = 0xc221d0c ---
:(null)(c2342f00) at 0
:xpt_release_devq_device(d181ce30,1,1,c221dd64,c01c92b9) at xpt_release_devq_device+0xda
:xpt_release_devq_timeout(d181ce30,0,0,16,58) at xpt_release_devq_timeout+0x10
:swi_softclock(0) at swi_softclock+0xd1
:ithread_handler(16,0,0,0,0) at ithread_handler+0x41





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