Hi, On 21 January 2016 at 18:30, Carlos Palminha <CARLOS.PALMINHA at synopsys.com> wrote: > i just found that its blocking waiting for console_lock... > @vineet, alexey: i think that console_lock is architecture dependent right? Do you know any issue with console_lock for ARC? Once console_lock is acquired, you will not see any further prints whilst it is held. Likely your driver is hanging/crashing whilst holding console_lock, which you don't see. See the patch just sent to the list to document how to debug issues which happen under console_lock. Cheers, Daniel