Messages in this thread | | | Subject | Re: IDE todo list | From | Alan Cox <> | Date | 23 Mar 2003 15:41:19 +0000 |
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On Sun, 2003-03-23 at 03:49, Petr Vandrovec wrote: > This one fixes lockup, but I'm not actually sure that it is better > than before, as both channels are downgraded to the PIO:
Its a real fix. We are in the IRQ handler so we cannot do disable_irq because we deadlock waiting for ourselves to exit the interrupt handler
How we change mode downwards is a policy thing. We must avoid going into MWDMA on error but going to UDMA0 is fine
Alan
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