USB, 2.6-test11 and hot flaming death

Benjamin Herrenschmidt benh at
Mon Dec 15 11:22:58 EST 2003

I'm having more reports of this USB problem on G5s, apparently
not always related to using old kbds...

In the dmesg log I have here, the problem starts with an error
in dl_resverse_done_list() where this case is triggered:

		if (!td) {
			ohci_err (ohci, "bad entry %8x\n", td_dma);

It would be interesting, since you both have a 100% repro case,
to check out what URBs are filled in the lists and where do that
"bad" one comes from...


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