Hello Richard, On 7/8/21 12:08 PM, Richard Palethorpe wrote: > Please see upstream commit: > > commit dd83c161fbcc5d8be637ab159c0de015cbff5ba4 > Author: zhongjiang <zhongjiang@xxxxxxxxxx> > Date: Mon Jul 10 15:53:01 2017 -0700 > > kernel/exit.c: avoid undefined behaviour when calling wait4() > > It avoids negating INT_MIN by returning early with ESRCH. > > Signed-off-by: Richard Palethorpe <rpalethorpe@xxxxxxxx> Patch applied. Thanks, Alex > --- > man2/wait.2 | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/man2/wait.2 b/man2/wait.2 > index 5ae955b3f..63d872ee6 100644 > --- a/man2/wait.2 > +++ b/man2/wait.2 > @@ -455,6 +455,15 @@ was caught; see > The > .I options > argument was invalid. > +.TP > +.B ESRCH > +(for > +.BR wait () > +or > +.BR waitpid ()) > +.I pid > +is equal to > +.I INT_MIN > .SH CONFORMING TO > SVr4, 4.3BSD, POSIX.1-2001. > .SH NOTES > -- Alejandro Colomar Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ http://www.alejandro-colomar.es/
