kernel update (relative to 2.6.0-test4)

kernel update (relative to 2.6.0-test4)

[David Mosberger]

The latest ia64 patch is now available at
ftp://www.kernel.org/pub/linux/kernel/ports/ia64/v2.5/ in
file:

 linux-2.6.0-test4-ia64-030826.diff.gz

Mainly a collection of bug-fixes plus sync'ing with 2.6.0-test4 (e.g.,
fadvise64_64() is now hooked up).  Also, I included a patch by Arun
which makes x86 GDT/LDT accesses work again.  The patch was supposed
to be in Linus' 2.6.0-test4 but got overlooked somehow.

The kernel seems to work fine on various zx1-based machines and the HP
Simulator.  I didn't try Lion/Big Sur but the ACPI bug that was
keeping earlier kernels from working has been folded into the main
tree, so in theory, the kernel should work on those platforms again.

Oh, -test3 had some nasty race conditions in the timer code and that
caused it to crash on MP machines under heavy load.  -test4 seems to
be much better in this regard.

Enjoy,

	--david

Re: kernel update (relative to 2.6.0-test4)

[Alex Williamson]

[-- Attachment #1: Type: text/plain, Size: 234 bytes --]

David,

   The second chunk of the "UP cmc/cpe polling fix" seems to have
gotten lost.  Please apply the attached for the cpe side of the
fix.  Thanks,

	Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab

[-- Attachment #2: mca_fix.diff --]
[-- Type: text/plain, Size: 471 bytes --]

--- linux-2.6.0-test4.orig/arch/ia64/kernel/mca.c	2003-08-26 13:13:27.000000000 -0600
+++ linux-2.6.0-test4/arch/ia64/kernel/mca.c	2003-08-26 14:42:37.000000000 -0600
@@ -1225,7 +1225,7 @@
 
 	ia64_mca_cpe_int_handler(cpe_irq, arg, ptregs);
 
-	for (++cpuid ; !cpu_online(cpuid) && cpuid < NR_CPUS ; cpuid++);
+	for (++cpuid ; cpuid < NR_CPUS && !cpu_online(cpuid) ; cpuid++);
 
 	if (cpuid < NR_CPUS) {
 		platform_send_ipi(cpuid, IA64_CPEP_VECTOR, IA64_IPI_DM_INT, 0);

RE: kernel update (relative to 2.6.0-test4)

[Luck, Tony]

> The latest ia64 patch is now available at
> ftp://www.kernel.org/pub/linux/kernel/ports/ia64/v2.5/ in
> file:
> 
>  linux-2.6.0-test4-ia64-030826.diff.gz
> 

Last few lines of the build output (building for Tiger):

  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  OBJCOPY arch/ia64/hp/sim/boot/vmlinux.bin
BFD: arch/ia64/hp/sim/boot/vmlinux.bin: warning: allocated section `.data.nosave' not in segment
  GZIP    arch/ia64/hp/sim/boot/vmlinux.gz
  LN      vmlinux.gz
  Kernel: vmlinux.gz is ready

Is that .../hp/sim/boot/... path right?  I don't have CONFIG_IA64_HP_SIM
set in my .config.

Any clues on what the warning from OBJCOPY really means?

-Tony

RE: kernel update (relative to 2.6.0-test4)

[David Mosberger]

>>>>> On Wed, 27 Aug 2003 09:01:54 -0700, "Luck, Tony" <tony.luck@intel.com> said:

  >> The latest ia64 patch is now available at
  >> ftp://www.kernel.org/pub/linux/kernel/ports/ia64/v2.5/ in
  >> file:
  >> 
  >> linux-2.6.0-test4-ia64-030826.diff.gz
  >> 

  Tony> Last few lines of the build output (building for Tiger):

  Tony> KSYM    .tmp_kallsyms2.S
  Tony> AS      .tmp_kallsyms2.o
  Tony> LD      vmlinux
  Tony> OBJCOPY arch/ia64/hp/sim/boot/vmlinux.bin
  Tony> BFD: arch/ia64/hp/sim/boot/vmlinux.bin: warning: allocated section `.data.nosave' not in segment
  Tony> GZIP    arch/ia64/hp/sim/boot/vmlinux.gz
  Tony> LN      vmlinux.gz
  Tony> Kernel: vmlinux.gz is ready

  Tony> Is that .../hp/sim/boot/... path right?

Not really, but it doesn't hurt, AFAIK (I'll try to remember to clean
it up, though).

  Tony> Any clues on what the warning from OBJCOPY really means?

Nope.  I don't get that (building for zx1):

  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  Building modules, stage 2.
  OBJCOPY arch/ia64/hp/sim/boot/vmlinux.bin
  GZIP    arch/ia64/hp/sim/boot/vmlinux.gz
  MODPOST
  LN      vmlinux.gz
  Kernel: vmlinux.gz is ready

	--david

RE: kernel update (relative to 2.6.0-test4)

[Luck, Tony]

>   Tony> Any clues on what the warning from OBJCOPY really means?
> 
> Nope.  I don't get that (building for zx1):


Ok, I found it.  I somehow ended up with CONFIG_PM=y, so "kernel/power"
got built, and inside kernel/power/main.c there is:

  static int in_suspend __nosavedata = 0;

where __nosavedata is defined in include/linux/init.h as:

#define __nosavedata __attribute__ ((__section__ (".data.nosave")))

We don't have an entry in vmlinux.lds.S to handle this section.

-Tony

RE: kernel update (relative to 2.6.0-test4)

[Luck, Tony]

CONFIG_PM is set without a menu entry to turn it on/off.

--- tiger-numa/arch/ia64/Kconfig	Tue Aug 26 13:29:52 2003
+++ linux-2.6.0-test4/arch/ia64/Kconfig	Wed Aug 27 09:41:49 2003
@@ -264,7 +264,7 @@
 	  unsure, answer Y.
 
 config PM
-	bool
+	bool "Power Management support"
 	depends on IA64_GENERIC || IA64_DIG || IA64_HP_ZX1
 	default y
 	---help---

Re: kernel update (relative to 2.6.0-test4)

[Matthew Wilcox]

On Wed, Aug 27, 2003 at 09:01:54AM -0700, Luck, Tony wrote:
> Last few lines of the build output (building for Tiger):
> 
>   KSYM    .tmp_kallsyms2.S
>   AS      .tmp_kallsyms2.o
>   LD      vmlinux
>   OBJCOPY arch/ia64/hp/sim/boot/vmlinux.bin
> BFD: arch/ia64/hp/sim/boot/vmlinux.bin: warning: allocated section `.data.nosave' not in segment
>   GZIP    arch/ia64/hp/sim/boot/vmlinux.gz
>   LN      vmlinux.gz
>   Kernel: vmlinux.gz is ready
> 
> Is that .../hp/sim/boot/... path right?  I don't have CONFIG_IA64_HP_SIM
> set in my .config.

Yes, that's right.  David and I had a little discussion about that a
couple of days ago.  It's a harmless change.

> Any clues on what the warning from OBJCOPY really means?
> 
> -Tony
> -
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