Re: Race condition in interrupt handling
Jan Stoess <[email protected]> Wed, 14 Apr 2010 11:15:08 +0200
| Newsgroups | gmane.comp.micro-kernel.l4.l4ka.general |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Apr 13, 2010 at 09:03:30AM -0500, Mai, Haohui wrote: > But I do agree with you that the spinlock might lead to a deadlock > under such the situation I described before. > > However, I'm unable to observe it during the debugging. > > Just to make sure, interrupt migration is disabled by default unless > I turn on "poll other cpu's queue on idle", right? > No, idle polling does not have anything to do with IRQ migration. Latter is always avaisable and triggered implicitly when migrating IRQ threads. -Jan -- Jan Stoess KIT/UKa System Architecture Group Phone: +49 (721) 608 4056 Fax: +49 (721) 608 7664 eMail: [email protected]