Messages in this thread | | | Date | Mon, 27 Jan 2003 09:11:48 -0800 | From | Ross Biro <> | Subject | BUG: [2.4.18+] IDE Race Condition |
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There is at least one more IDE race condition in 2.4.18 and 2.4.21-pre3. Basically the interrupt for the controller being serviced is left on while setting up the next command. I'm not sure how much trouble it can cause but it does lead to some interesting stack traces.
The condition if (masked_irq && hwif->irq != masked_irq) in ide_do_request should be replaced with if (!masked_irq || hwif->irq != masked_irq) in two places.
This doesn't totally eliminate the race conditions, but it does minimize them some more. I can still see a race in 2.4.18. I'll say more about it once I've tracked it down.
Ross
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