Messages in this thread | | | Date | Fri, 12 Mar 1999 16:59:33 -0800 (PST) | From | "B. James Phillippe" <> | Subject | ISR re-entrancy question: multiple interrupts |
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Greetings,
I know that the Linux kernel guarantees that an ISR will not be re-entered. But does this also apply for ISR's that service more than one interrupt? For example, if I have a driver that load-balances some data processing between two (identical) PCI cards with different IRQ's, and data from each controller is inserted into the same queue, do I need to lock against the other ISR thread during queue access? I think so, but... I would like the confirmation of a guru. :)
thanks, -bp -- B. James Phillippe . bryan@terran.org Software Engineer, WGT Inc. . http://www.terran.org/~bryan
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