Re: kern/44986: "screens" gets stuck during detach

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

> The following reply was made to PR kern/44986; it has been noted by GNATS.
> 
> From: christos%zoulas.com@localhost (Christos Zoulas)
> To: Matthias Scheler <tron%zhadum.org.uk@localhost>
> Cc: NetBSD GNATS <gnats-bugs%NetBSD.org@localhost>
> Subject: Re: kern/44986: "screens" gets stuck during detach
> Date: Tue, 24 May 2011 11:37:47 -0400
> 
>  On May 24,  2:17pm, tron%zhadum.org.uk@localhost (Matthias Scheler) wrote:
>  -- Subject: Re: kern/44986: "screens" gets stuck during detach
>  
>  | On Tue, May 24, 2011 at 08:42:11AM -0400, Christos Zoulas wrote:
>  | > Backout the select changes and leave the sigsuspend changes. If that 
> fixes
>  | > the problem, then the problem is with select. I don't see how putting the
>  | > code in a separate function in sys_sig.c makes a difference.
>  | 
>  | I'm wondering how the signal mask gets restored in case of select(2) now.
>  | There used to be code which did that. But the old signal mask is simply
>  | copied into a property of the "lwp" structure.
>  
>  The same way that it is restored for sigsuspend. Look in kern_sig.c

how does it work when select returns due to non-signal events?

YAMAMOTO Takashi

>  
>  christos