On Wed 2014-02-05 13:33:02, Sebastian Reichel wrote:
> Without enabling the workaround for ARM errata 430973 thumb
> compiled userland crashes randomly on the Nokia N900.
>
> Signed-off-by: Sebastian Reichel
Reviewed-by: Pavel Machek
> +static void __init nokia_n900_legacy_init(void)
> +{
> +
Hi,
On Wed, Feb 05, 2014 at 10:30:52PM +0200, Ivaylo Dimitrov wrote:
> In theory having that workaround disabled might be a security
> problem, but honestly, knowing its nature I don't think it is easily
> exploitable, if at all. The final result when bitten by it is a
> SIGILL, but in userspace,
On Wed, Feb 05, 2014 at 09:42:30PM +0100, Pali Rohár wrote:
> 2014-02-05 Sebastian Reichel :
> > Hi,
> >
> > On Wed, Feb 05, 2014 at 05:38:54PM +0100, Pali Rohár wrote:
> >> > I assumed, that the workaround is not needed for this device type.
> >>
> >> That rx51 secure call must not be called on no
2014-02-05 Sebastian Reichel :
> Hi,
>
> On Wed, Feb 05, 2014 at 05:38:54PM +0100, Pali Rohár wrote:
>> > I assumed, that the workaround is not needed for this device type.
>>
>> That rx51 secure call must not be called on non secure devices (e.g.
>> qemu), because it cause kernel crash. So I thoug
Hi,
On 5.02.2014 19:17, Sebastian Reichel wrote:
Hi,
On Wed, Feb 05, 2014 at 05:38:54PM +0100, Pali Rohár wrote:
I assumed, that the workaround is not needed for this device type.
That rx51 secure call must not be called on non secure devices (e.g.
qemu), because it cause kernel crash. So I
Hi,
On Wed, Feb 05, 2014 at 05:38:54PM +0100, Pali Rohár wrote:
> > I assumed, that the workaround is not needed for this device type.
>
> That rx51 secure call must not be called on non secure devices (e.g.
> qemu), because it cause kernel crash. So I thought that kernel should
> write something
2014-02-05 Sebastian Reichel :
> Hi Pali,
>
> On Wed, Feb 05, 2014 at 02:12:56PM +0100, Pali Rohár wrote:
>> 1) Why are you using if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) instead
>> #ifdef ?
>
> This is the preferred kernel style as far as I know.
>
Ok.
>> 2) Why do you not write warning or inf
Hi Pali,
On Wed, Feb 05, 2014 at 02:12:56PM +0100, Pali Rohár wrote:
> 1) Why are you using if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) instead #ifdef
> ?
This is the preferred kernel style as far as I know.
> 2) Why do you not write warning or info when omap type is not
> OMAP2_DEVICE_TYPE_SEC (
2014-02-05 Sebastian Reichel :
> Without enabling the workaround for ARM errata 430973 thumb
> compiled userland crashes randomly on the Nokia N900.
>
> Signed-off-by: Sebastian Reichel
> ---
> Hi Tony,
>
> I think this patch should be added into some fix branch for 3.14-rcX.
>
> -- Sebastian
> --
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