This is an assembler version to fixup DAR not being set
by dcbX, icbi instructions. There are two versions, one
uses selfmodifing code, the other uses a
jump table but is much bigger(default).
Signed-off-by: Joakim Tjernlund
---
arch/powerpc/kernel/head_8xx.S | 147 +
This is an assembler version to fixup DAR not being set
by dcbX, icbi instructions. There are two versions, one
uses selfmodifing code, the other uses a
jump table but is much bigger(default).
---
arch/powerpc/kernel/head_8xx.S | 180 +++-
1 files changed, 176
Benjamin Herrenschmidt wrote on 14/10/2009 23:52:10:
>
> On Wed, 2009-10-14 at 23:41 +0200, Joakim Tjernlund wrote:
> > Benjamin Herrenschmidt wrote on 14/10/2009
> > 23:17:09:
> > >
> > > On Wed, 2009-10-14 at 16:14 -0500, Scott Wood wrote:
> > > >
> > > > I think the last working version was a
On Wed, 2009-10-14 at 23:41 +0200, Joakim Tjernlund wrote:
> Benjamin Herrenschmidt wrote on 14/10/2009
> 23:17:09:
> >
> > On Wed, 2009-10-14 at 16:14 -0500, Scott Wood wrote:
> > >
> > > I think the last working version was a little older than that -- and it's
> > > quite
> > > possible that t
Benjamin Herrenschmidt wrote on 14/10/2009 23:17:09:
>
> On Wed, 2009-10-14 at 16:14 -0500, Scott Wood wrote:
> >
> > I think the last working version was a little older than that -- and it's
> > quite
> > possible that there was underlying badness even earlier that just recently
> > got
> > exp
On Wed, 2009-10-14 at 16:14 -0500, Scott Wood wrote:
>
> I think the last working version was a little older than that -- and it's
> quite
> possible that there was underlying badness even earlier that just recently
> got
> exposed. I think I want to just debug it and find out what's really g
Joakim Tjernlund wrote:
With that, I don't see the hard lockup, but things get stuck during
You needed both to loose the hard lockup? I would think
it should be enough to revert the "various copy routines" stuff?
No, but when I just reverted the patch and didn't change the TLB error handler,
Scott Wood wrote on 14/10/2009 22:22:25:
>
> Joakim Tjernlund wrote:
> > Scott Wood wrote on 14/10/2009 21:23:02:
> >> Joakim Tjernlund wrote:
> >>> BTW, you could add a test and printk in do_page_fault on address
> >>> 0x00f0.
> >>> if that ever hits there is a problem with dcbX fixup.
> >
Joakim Tjernlund wrote:
Scott Wood wrote on 14/10/2009 21:23:02:
Joakim Tjernlund wrote:
BTW, you could add a test and printk in do_page_fault on address 0x00f0.
if that ever hits there is a problem with dcbX fixup.
It doesn't get any 0xf0 faults.
FWIW, I'm not seeing the segfault any mo
Scott Wood wrote on 14/10/2009 21:23:02:
> Joakim Tjernlund wrote:
> > BTW, you could add a test and printk in do_page_fault on address 0x00f0.
> > if that ever hits there is a problem with dcbX fixup.
>
> It doesn't get any 0xf0 faults.
>
> FWIW, I'm not seeing the segfault any more, but I st
Joakim Tjernlund wrote:
BTW, you could add a test and printk in do_page_fault on address 0x00f0.
if that ever hits there is a problem with dcbX fixup.
It doesn't get any 0xf0 faults.
FWIW, I'm not seeing the segfault any more, but I still get the lockup.
-Scott
___
Scott Wood wrote on 14/10/2009 19:20:03:
>
> On Sun, Oct 11, 2009 at 06:35:08PM +0200, Joakim Tjernlund wrote:
> > This is an assembler version to fixup DAR not being set
> > by dcbX, icbi instructions. There are two versions, one
> > uses selfmodifing code, the other uses a
> > jump table but is
On Sun, Oct 11, 2009 at 06:35:08PM +0200, Joakim Tjernlund wrote:
> This is an assembler version to fixup DAR not being set
> by dcbX, icbi instructions. There are two versions, one
> uses selfmodifing code, the other uses a
> jump table but is much bigger(default).
> ---
> arch/powerpc/kernel/hea
This is an assembler version to fixup DAR not being set
by dcbX, icbi instructions. There are two versions, one
uses selfmodifing code, the other uses a
jump table but is much bigger(default).
---
arch/powerpc/kernel/head_8xx.S | 146 +++-
1 files changed, 145
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