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Date: Thu, 21 Sep 2006 14:38:21 +0400
From: "Dmitry V. Levin" <ldv@altlinux.org>
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Subject: Re: [sisyphus] ovz kernel and quake3 segfault
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Hi,

On Thu, Sep 21, 2006 at 01:23:00PM +0400, Vitaly Ostanin wrote:
> =E4=C1=D6=C5 =D3=C9=C4=D1 =CE=C1 =D1=C4=D2=C5 ovz (2.6.16-ovz-smp-alt4), =
=C8=CF=DE=C5=D4=D3=D1 =C9=CE=CF=C7=C4=C1
> =DA=C1=D0=D5=D3=D4=C9=D4=D8 =D7 quake3-client-smp-1.32b-alt1.
>=20
> quake3 =D7=D9=CC=C5=D4=C1=C5=D4 =D3 segfault. =F7 2.6.16-std26-smp-alt9 =
=CF=CE =D2=C1=C2=CF=D4=C1=CC.
>=20
> =FC=D4=CF =D1 =D3=CF=D7=D3=C5=CD =D3=D4=D2=C1=CE=CE=CF=C7=CF =C8=CF=DE=D5?

=F7 =C6=C1=CA=CC=C5 /proc/sys/kernel/exec-shield =CB=C1=CB=CF=C5 =DA=CE=C1=
=DE=C5=CE=C9=C5?
=E5=D3=CC=C9 =D4=C1=CD 11, =D0=CF=D0=D2=CF=C2=D5=CA=D4=C5 =D0=CF=CD=C5=CE=
=D1=D4=D8 =CE=C1 9.

$ fgrep -B6 kernel.exec-shield /etc/sysctl.conf
# Exec Shield bits:
#          0: off; vdso at STACK_TOP, 1 page below TASK_SIZE
#   (1<<0) 1: on [also on if !=3D0]
#   (1<<1) 2: noexecstack by default
#   (1<<2) 4: vdso just below .text of main (unless too low)
#   (1<<3) 8: vdso just below .text of PT_INTERP (unless too low)
kernel.exec-shield =3D 9


--=20
ldv

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