Hello Alan, i am really sorry for all the mess. But thank you very much for giving the information. Thanks
On 9/23/05, Alan Stern <[EMAIL PROTECTED]> wrote: > On Fri, 23 Sep 2005, Oliver Neukum wrote: > > > A driver using spin_lock_irq() in a tasklet is buggy. You can always use > > irqsave. It will just be slower. But in a tasklet or interrupt handler > > spin_lock() will do. Basically these locks differ in whether they shut down > > irq processing on the local CPU. In interrupt it is down and must not be > > reenabled. Therefore spin_lock_irq() is deadly. > > This may depend on the particular architecture or platform. On x86, > general interrupts are not always disabled during interrupt handlers. > Only the particular IRQ line being handled. > > Furthermore, isn't it true that tasklets, like all bottom halves, run with > interrupts enabled? > > Alan Stern > > > > ------------------------------------------------------- > SF.Net email is sponsored by: > Tame your development challenges with Apache's Geronimo App Server. Download > it for free - -and be entered to win a 42" plasma tv or your very own > Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php > _______________________________________________ > linux-usb-devel@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel > ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
