From: Oleg Nesterov > Sent: 12 June 2019 14:35 > On 06/12, David Laight wrote: > > > > > > If I add a signal handler for SIGINT it is called when pselect() > > > > returns regardless of the return value. > > > > > > That is odd. Is this with Oleg's fix applied? > > > > No it is a 5.1.0-rc5 kernel with no related local patches. > > So it is the 'historic' behaviour of pselect(). > > No, this is not historic behaviour, > > > But not the original one! Under 2.6.22-5-31 the signal handler isn't caller > > when pselect() returns 1. > > This is historic behaviour. > > And it was broken by 854a6ed56839a4 ("signal: Add restore_user_sigmask()"). > > And this is what we already discussed many, many times in this thread ;) My brain hurts :-) David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)