On Tue, Sep 6, 2011 at 10:51 AM, Mulyadi Santosa <mulyadi.santosa@gmail.com> wrote:
Hi :)
On 06/09/2011, sandeep kumar <coolsandyforyou@gmail.com> wrote:
Hmm..But when i tried to take a mutex lock in threaded_irq, it is throwing a warning message "BUG: sleeping function called from invalid context"... So i was wondering which way it is..
Please don't top post :)
Anyway, regarding that "BUG:" message, could it be that mutex function mistakenly assume it's called inside top half, thus bails out since How can mutex assume? IMHO the message would have printed because sleeping would be forbidden there but again AFAIK in the threaded handler we can do I2C transactions which can sleep.So kind of paradox there. ps:I have seen the code where sandeep is doing the taking the mutex lock. He is taking mutex lock at the beginging of the handler and releasing at the end. sleeping is forbidden there? which mutex function do you use? (sorry I don't follow every locking functions exist now)
-- regards,
Mulyadi Santosa Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com
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