On Mon 2018-10-22 19:48:17, Alan Cox wrote:
> On Mon, 22 Oct 2018 09:56:42 +0200
> Joerg Roedel wrote:
>
> > On Sun, Oct 21, 2018 at 02:37:45PM +0200, Pavel Machek wrote:
> > > On Tue 2018-09-18 14:00:30, Alan Cox wrote:
> > > > There are pretty much no machines that don't support PAE and are s
On Mon 2018-10-22 09:56:42, Joerg Roedel wrote:
> On Sun, Oct 21, 2018 at 02:37:45PM +0200, Pavel Machek wrote:
> > On Tue 2018-09-18 14:00:30, Alan Cox wrote:
> > > There are pretty much no machines that don't support PAE and are still
> > > even vaguely able to boot a modern Linux kernel. The odd
On Mon, 22 Oct 2018 09:56:42 +0200
Joerg Roedel wrote:
> On Sun, Oct 21, 2018 at 02:37:45PM +0200, Pavel Machek wrote:
> > On Tue 2018-09-18 14:00:30, Alan Cox wrote:
> > > There are pretty much no machines that don't support PAE and are still
> > > even vaguely able to boot a modern Linux kern
On Sun, Oct 21, 2018 at 02:37:45PM +0200, Pavel Machek wrote:
> On Tue 2018-09-18 14:00:30, Alan Cox wrote:
> > There are pretty much no machines that don't support PAE and are still
> > even vaguely able to boot a modern Linux kernel. The oddity is the
> > Pentium-M but most distros shipped a hack
On Tue 2018-09-18 14:00:30, Alan Cox wrote:
> On Tue, 11 Sep 2018 14:12:22 +0200
> Joerg Roedel wrote:
>
> > On Tue, Sep 11, 2018 at 02:58:10PM +0300, Meelis Roos wrote:
> > > The machines where I have PAE off are the ones that have less memory.
> > > PAE is off just for performance reasons, not
On Tue, 11 Sep 2018 14:12:22 +0200
Joerg Roedel wrote:
> On Tue, Sep 11, 2018 at 02:58:10PM +0300, Meelis Roos wrote:
> > The machines where I have PAE off are the ones that have less memory.
> > PAE is off just for performance reasons, not lack of PAE. PAE should be
> > present on all of my af
On Tue, Sep 11, 2018 at 1:49 AM Joerg Roedel wrote:
>
> I had a look into the THP and the HugeTLBfs code, and that is not
> really easy to fix there. As I can see it now, there are a few options
> to fix that, but most of them are ugly:
Just do (4): disable PTI with PAE.
Then we can try to make
On Tue, Sep 11, 2018 at 02:58:10PM +0300, Meelis Roos wrote:
> The machines where I have PAE off are the ones that have less memory.
> PAE is off just for performance reasons, not lack of PAE. PAE should be
> present on all of my affected machines anyway and current distributions
> seem to mostl
> 4) Disable PTI support on 2-level paging by making it dependent
> on CONFIG_X86_PAE. This is, imho, the least ugly option
> because the machines that do not support PAE are most likely
> too old to be affected my Meltdown anyway. We might also
> consider
Hi,
[
Andrea, maybe you can have a quick look here too, please? Maybe I am
overlooking a simple way to fix the issue. Problem description is
below.
]
On Sat, Sep 08, 2018 at 12:24:10PM +0200, Thomas Gleixner wrote:
> > I'll try to reproduce and work on a fix.
>
> Any progress on this?
Yes
On Fri, 31 Aug 2018, Joerg Roedel wrote:
> On Fri, Aug 31, 2018 at 07:12:44AM +0300, Meelis Roos wrote:
> > > Thanks for the report! I'll try to reproduce the problem tomorrow and
> > > investigate it. Can you please check if any of the kernel configurations
> > > that show the bug has CONFIG_X8
> > I am seeing userland corruption and application crashes on multiple
> > 32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4.
> > They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests
> > so far (may be configuration dependent).
>
> Thanks for the report! I
On Fri, Aug 31, 2018 at 07:12:44AM +0300, Meelis Roos wrote:
> > Thanks for the report! I'll try to reproduce the problem tomorrow and
> > investigate it. Can you please check if any of the kernel configurations
> > that show the bug has CONFIG_X86_PAE set? If not, can you please test
> > if enabli
> > I am seeing userland corruption and application crashes on multiple
> > 32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4.
> > They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests
> > so far (may be configuration dependent).
>
> Thanks for the report! I
Hi Meelis,
On Thu, Aug 30, 2018 at 09:09:19PM +0300, Meelis Roos wrote:
> I am seeing userland corruption and application crashes on multiple
> 32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4.
> They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests
> so fa
I am seeing userland corruption and application crashes on multiple
32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4.
They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests
so far (may be configuration dependent).
Typical problem is running aptitude in Debia
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