bottom half question
ratheesh kannoth <[email protected]>
| Newsgroups | org.kernel.vger.linux-newbie |
|---|---|
| Message-ID | <CAGZFCEH__DQfr7-q-5F6JsffXwPHpaE5+235pjn=ib5XMH9M6g@mail.gmail.com> |
In uni processor system ( 2.6 kernel ) An interrupt happened and ISR routine is serviced , then bottom half scheduled and while the bottom half is running 1) Suppose same interrupt happened again - > then (the previous ) bottom half is preempted and ISR is serviced for new interrupt. After ISR , same bottom half will be run again ? or the new one ? 2) if it is a new bottom half being run ,( since bottom half is in interrupt context ) where it can store register info of previous interrupt ? 3) Suppose a lot of interrupts happen in a short period of time , how and when bottom half for each interrupt gets scheduled ? -Ratheesh -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs