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From: Peter Wemm <peter@wemm.org>
To: svn-src-all@freebsd.org
Cc: Konstantin Belousov <kib@freebsd.org>, src-committers@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org
Subject: Re: svn commit: r285967 - stable/10/sys/kern
Date: Sun, 02 Aug 2015 02:07:57 -0700
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On Tuesday, July 28, 2015 05:12:41 PM Konstantin Belousov wrote:
> Author: kib
> Date: Tue Jul 28 17:12:41 2015
> New Revision: 285967
> URL: https://svnweb.freebsd.org/changeset/base/285967
>=20
> Log:
>   MFC r284956:
>   Do not calculate the stack's bottom address twice.

This is a bad MFC.  stack_addr is different for ia64 in 10.x and this b=
reaks=20
threading on ia64.    eg: ntpd crashes on startup in the cluster machin=
es.


> Modified:
>   stable/10/sys/kern/kern_exec.c
> Directory Properties:
>   stable/10/   (props changed)
>=20
> Modified: stable/10/sys/kern/kern_exec.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
> =3D=3D --- stable/10/sys/kern/kern_exec.c=09Tue Jul 28 17:08:32 2015=09=
(r285966) +++
> stable/10/sys/kern/kern_exec.c=09Tue Jul 28 17:12:41 2015=09(r285967)=
 @@
> -1116,7 +1116,7 @@ exec_new_vmspace(imgp, sv)
>  =09 * process stack so we can check the stack rlimit.
>  =09 */
>  =09vmspace->vm_ssize =3D sgrowsiz >> PAGE_SHIFT;
> -=09vmspace->vm_maxsaddr =3D (char *)sv->sv_usrstack - ssiz;
> +=09vmspace->vm_maxsaddr =3D (char *)stack_addr;
>=20
>  =09return (0);
>  }
> _______________________________________________
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=2D-=20
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI=
6FJV
UTF-8: for when a ' or ... just won\342\200\231t do\342\200\246
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