> On May 25, 2015, at 10:02 PM, 김찬 <ckim@xxxxxxxxxx> wrote: > > Hello, > > I see in the source (linux ver 3.3) that wake_up_interruptible function doesn't sleep so I used in it an ISR but I'm getting 'BUG:scheduling while atomic' message. (I'm not sure it's coming from this) Remove it and check if the problem goes away. > I'm looking for the exact cause but Is there any caveat when using wake_up_interruptible() in an ISR? (I found some drivers use it in ISR, some use it in work_struct) > I think there should be no problem using this api in isr context. > I also read in http://www.slideshare.net/rampalliraj/tasklet-vs-work-queues?from_action=save that tasklet is not allowed to sleep but work is. (because tasklet is not in process context, but in bottom-half) > I don't know if I have to move the wake_up_interruptible function to tasklet or work(queue) or even it matters to the current problem. > > Any help would be greatly appreciated. What are you trying to achieve. > Regards, > > Chan > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
