On Wed, Jan 30, 2008 at 10:04:17PM -0700, Matthew Wilcox wrote:
> On Thu, Jan 31, 2008 at 03:31:28AM +1100, Matthew Chapman wrote:
> > I'm trying to track down a PCI performance problem - part of my
> > never-ending thesis troubles - and one thing I'm finding is that my HP
> > zx1-based Itaniums ar
On Thu, Jan 31, 2008 at 03:31:28AM +1100, Matthew Chapman wrote:
> I'm trying to track down a PCI performance problem - part of my
> never-ending thesis troubles - and one thing I'm finding is that my HP
> zx1-based Itaniums are taking surprisingly long to satisfy PCI DMA
> reads.
>
> On a 66Mhz P
> I'll start digging on why this doesn't boot ... but you might as well
> send the fixes so far upstream to Linus so that the SMP fix is available
Well a pure 2.6.24 version compiled with CONFIG_SMP=n booted just fine, so
the breakage is recent ... and more than likely related to this change.
I'v
Ingo Molnar wrote:
> * Olof Johansson <[EMAIL PROTECTED]> wrote:
>
>> > could you try the full patchset that Travis has just sent and which
>> > i've put into x86.git, you can pull it from:
>>
>> Looks ok for powerpc so far, I haven't gotten through all defconfigs
>> yet but the first ones that
Ingo Molnar wrote:
> * [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>> Change:
>> config ARCH_SETS_UP_PER_CPU_AREA
>> to:
>> config HAVE_SETUP_PER_CPU_AREA
>
> undocumented change:
>
>> config ARCH_NO_VIRT_TO_BUS
>> --- a/init/main.c
>> +++ b/init/main.c
>> @@ -380,6 +380,8 @@ stati
* [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Change:
> config ARCH_SETS_UP_PER_CPU_AREA
> to:
> config HAVE_SETUP_PER_CPU_AREA
undocumented change:
> config ARCH_NO_VIRT_TO_BUS
> --- a/init/main.c
> +++ b/init/main.c
> @@ -380,6 +380,8 @@ static void __init setup_per_cpu_areas(
On Wed, Jan 30, 2008 at 10:25:58PM +0100, Ingo Molnar wrote:
>
> * Olof Johansson <[EMAIL PROTECTED]> wrote:
>
> > > could you try the full patchset that Travis has just sent and which
> > > i've put into x86.git, you can pull it from:
> >
> > Looks ok for powerpc so far, I haven't gotten throu
* Olof Johansson <[EMAIL PROTECTED]> wrote:
> > could you try the full patchset that Travis has just sent and which
> > i've put into x86.git, you can pull it from:
>
> Looks ok for powerpc so far, I haven't gotten through all defconfigs
> yet but the first ones that failed before build now. p
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> I'll start digging on why this doesn't boot ... but you might as well
> send the fixes so far upstream to Linus so that the SMP fix is
> available (which is all anyone really cares about ... there are very,
> very few UP ia64 systems in existence).
>
Ingo Molnar wrote:
> * Luck, Tony <[EMAIL PROTECTED]> wrote:
>
>> > Could you check the patch below? With this applied to latest -git,
>> > ia64 buils fine for me in a cross-compiling environment. (but i dont
>> > know whether it boots ...)
>>
>> Uni-processor build still fails with this patch
> this i believe builds an implicit dependency between the mca_asm.o
> position within the image and the ia64_mca_data percpu variable it
> accesses - it relies on the immediate 22 addressing mode that has 4MB of
> scope. Per chance, the .config you sent creates a 14MB image, and the
> percpu v
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> > could you send the .config you are using?
>
> Ok. Attached.
thanks a ton - this produced a link error here too.
after half an hour of head scratching, the updated patch below solves
the build problem.
The problem i believe is this code in arch/ia6
> could you send the .config you are using?
Ok. Attached.
-Tony
upconfig
Description: upconfig
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> > ah, that was the vital clue. The patch below makes the small memory
> > model only defined on SMP, and makes the config build/link fine here.
> > Does this build and boot on your box?
>
> I applied this on top of the git pull from
> git://git.kernel
> ah, that was the vital clue. The patch below makes the small memory
> model only defined on SMP, and makes the config build/link fine here.
> Does this build and boot on your box?
I applied this on top of the git pull from
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
a
Ingo Molnar wrote:
> * Ingo Molnar <[EMAIL PROTECTED]> wrote:
>
>>> Some place in there. The CONFIG_SMP=n path in ia64 makes quite
>>> radical changes ... rather than putting all the per-cpu stuff into
>>> the top 64K of address space and providing a per-cpu TLB mapping for
>>> that range to a
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> > Some place in there. The CONFIG_SMP=n path in ia64 makes quite
> > radical changes ... rather than putting all the per-cpu stuff into
> > the top 64K of address space and providing a per-cpu TLB mapping for
> > that range to a different physical ad
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> > This is only defined for !__ASSEMBLY__
>
> Some place in there. The CONFIG_SMP=n path in ia64 makes quite
> radical changes ... rather than putting all the per-cpu stuff into the
> top 64K of address space and providing a per-cpu TLB mapping for tha
> I'm having trouble replicating this error. With the latest linux-2.6.git
> plus the patch I just sent, I get the following errors:
>
> drivers/input/mouse/psmouse-base.c:45: error: __param_proto causes a section
> type conflict
> drivers/md/md.c:5881: error: __param_start_ro causes a section ty
* Mike Travis <[EMAIL PROTECTED]> wrote:
> Could this be a problem with:
>
> #ifdef HAVE_MODEL_SMALL_ATTRIBUTE
> # define PER_CPU_ATTRIBUTES __attribute__((__model__ (__small__)))
> #endif
>
> This is only defined for !__ASSEMBLY__
nope, moving that per the patch below did not resolve the
* Olof Johansson <[EMAIL PROTECTED]> wrote:
> > could you try the full patchset that Travis has just sent and which
> > i've put into x86.git, you can pull it from:
>
> Looks ok for powerpc so far, I haven't gotten through all defconfigs
> yet but the first ones that failed before build now. p
Luck, Tony wrote:
>> Could you check the patch below? With this applied to latest -git, ia64
>> buils fine for me in a cross-compiling environment. (but i dont know
>> whether it boots ...)
>
> Uni-processor build still fails with this patch (config is
> arch/ia64/configs/tiger_defconfig
> with
On Wed, Jan 30, 2008 at 07:49:20PM +0100, Ingo Molnar wrote:
>
> * Luck, Tony <[EMAIL PROTECTED]> wrote:
>
> > > Could you check the patch below? With this applied to latest -git,
> > > ia64 buils fine for me in a cross-compiling environment. (but i dont
> > > know whether it boots ...)
> >
>
> could you try the full patchset that Travis has just sent and which i've
> put into x86.git, you can pull it from:
>
>git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
>
> it's a fixes only tree, ontop of Linus-very-latest. Head 4b9e425c25f84.
> [pull from ssh://master.ker
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> > Uni-processor build still fails with this patch (config is
> > arch/ia64/configs/tiger_defconfig with CONFIG_SMP switched from =y
> > to =n).
>
> could you try the full patchset that Travis has just sent and which
> i've put into x86.git, you can p
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> > Could you check the patch below? With this applied to latest -git,
> > ia64 buils fine for me in a cross-compiling environment. (but i dont
> > know whether it boots ...)
>
> Uni-processor build still fails with this patch (config is
> arch/ia64/con
Luck, Tony wrote:
>> Could you check the patch below? With this applied to latest -git, ia64
>> buils fine for me in a cross-compiling environment. (but i dont know
>> whether it boots ...)
>
> Uni-processor build still fails with this patch (config is
> arch/ia64/configs/tiger_defconfig
> with
On Wed, Jan 30, 2008 at 07:06:23PM +0100, Ingo Molnar wrote:
>
> * Luck, Tony <[EMAIL PROTECTED]> wrote:
>
> > > thanks! Sorry about that: we cross-built on ARM but not on SMP
> > > non-x86 platforms so this dependency/breakage went unnoticed.
> >
> > Yes ... all ia64 builds (UP and SMP) are br
> Could you check the patch below? With this applied to latest -git, ia64
> buils fine for me in a cross-compiling environment. (but i dont know
> whether it boots ...)
Uni-processor build still fails with this patch (config is
arch/ia64/configs/tiger_defconfig
with CONFIG_SMP switched from =y
Ingo Molnar wrote:
> * Luck, Tony <[EMAIL PROTECTED]> wrote:
>
>>> thanks! Sorry about that: we cross-built on ARM but not on SMP
>>> non-x86 platforms so this dependency/breakage went unnoticed.
>> Yes ... all ia64 builds (UP and SMP) are broken at the moment. Please
>> Cc: me with the fixup pa
ia64 has a special processor specific mapping that can be used to locate the
offset for the current per cpu area.
Based on latest linux-2.6.git
Cc: Tony Luck <[EMAIL PROTECTED]>
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Mike Travis <[EMAIL PROTECTED]>
---
linux-2.6.git:
- added back in mis
percpu_modcopy() is defined multiple times in arch files. However, the only
user is module.c. Put a static definition into module.c and remove
the definitions from the arch files.
Based on latest linux-2.6.git
Cc: Andi Kleen <[EMAIL PROTECTED]>
Cc: Tony Luck <[EMAIL PROTECTED]>
Cc: David Miller <
Change:
config ARCH_SETS_UP_PER_CPU_AREA
to:
config HAVE_SETUP_PER_CPU_AREA
Based on latest linux-2.6.git
Cc: Andi Kleen <[EMAIL PROTECTED]>
Cc: Tony Luck <[EMAIL PROTECTED]>
Cc: David Miller <[EMAIL PROTECTED]>
Cc: Sam Ravnborg <[EMAIL PROTECTED]>
Cc: Rusty Russell <[EMAIL PROTEC
* Luck, Tony <[EMAIL PROTECTED]> wrote:
> > thanks! Sorry about that: we cross-built on ARM but not on SMP
> > non-x86 platforms so this dependency/breakage went unnoticed.
>
> Yes ... all ia64 builds (UP and SMP) are broken at the moment. Please
> Cc: me with the fixup patch.
Could you check
> > > This broke powerpc (and presumably ia64 and sparc64) in current
> > > linux-2.6.git:
> >
> > I'm generating a "fixup patch" right now...
>
> thanks! Sorry about that: we cross-built on ARM but not on SMP non-x86
> platforms so this dependency/breakage went unnoticed.
Yes ... all ia64 buil
Hi folks,
I'm trying to track down a PCI performance problem - part of my
never-ending thesis troubles - and one thing I'm finding is that my HP
zx1-based Itaniums are taking surprisingly long to satisfy PCI DMA
reads.
On a 66Mhz PCI bus it seems to be taking about 60-75 bus cycles, i.e.
~1000ns,
* Mike Travis <[EMAIL PROTECTED]> wrote:
> > This broke powerpc (and presumably ia64 and sparc64) in current
> > linux-2.6.git:
>
> I'm generating a "fixup patch" right now...
thanks! Sorry about that: we cross-built on ARM but not on SMP non-x86
platforms so this dependency/breakage went unn
Geert Uytterhoeven wrote:
> On Wed, 30 Jan 2008, Linux Kernel Mailing List wrote:
>> Gitweb:
>> http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dd5af90a7f3d79e04b7eace9a98644dbf2038f4d
>> Commit: dd5af90a7f3d79e04b7eace9a98644dbf2038f4d
>> Parent: 3212bf
On Wed, 30 Jan 2008, Linux Kernel Mailing List wrote:
> Gitweb:
> http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dd5af90a7f3d79e04b7eace9a98644dbf2038f4d
> Commit: dd5af90a7f3d79e04b7eace9a98644dbf2038f4d
> Parent: 3212bff370c2f22e4987c6679ba485654cefb1
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