linux-stable.git/include/asm-i386, branch linux-2.6.20.y

[PATCH] i386 vDSO: use VM_ALWAYSDUMP

2007-01-26T21:50:58+00:00

This patch fixes core dumps to include the vDSO vma, which is left out now.
It removes the special-case core writing macros, which were not doing the
right thing for the vDSO vma anyway.  Instead, it uses VM_ALWAYSDUMP in the
vma; there is no need for the fixmap page to be installed.  It handles the
CONFIG_COMPAT_VDSO case by making elf_core_dump use the fake vma from
get_gate_vma after real vmas in the same way the /proc/PID/maps code does.

This changes core dumps so they no longer include the non-PT_LOAD phdrs from
the vDSO.  I made the change to add them in the first place, but in turned out
that nothing ever wanted them there since the advent of NT_AUXV.  It's cleaner
to leave them out, and just let the phdrs inside the vDSO image speak for
themselves.

Signed-off-by: Roland McGrath 
Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Fix CONFIG_COMPAT_VDSO

2007-01-26T21:50:58+00:00

I wouldn't mind if CONFIG_COMPAT_VDSO went away entirely.  But if it's there,
it should work properly.  Currently it's quite haphazard: both real vma and
fixmap are mapped, both are put in the two different AT_* slots, sysenter
returns to the vma address rather than the fixmap address, and core dumps yet
are another story.

This patch makes CONFIG_COMPAT_VDSO disable the real vma and use the fixmap
area consistently.  This makes it actually compatible with what the old vdso
implementation did.

Signed-off-by: Roland McGrath 
Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] x86: fix PDA variables to work during boot

2007-01-23T03:39:36+00:00

The current PDA code, which went in in post 2.6.19 has a flaw in that it
doesn't correctly cycle the GDT and %GS segment through the boot PDA,
the CPU PDA and finally the per-cpu PDA.

The bug generally doesn't show up if the boot CPU id is zero, but
everything falls apart for a non zero boot CPU id.  The basically kills
voyager which is perfectly capable of doing non zero CPU id boots, so
voyager currently won't boot without this.

The fix is to be careful and actually do the GDT setups correctly.

Signed-off-by: James Bottomley 
Cc: Andi Kleen 
Cc: Jeremy Fitzhardinge 
Cc: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] i386: Restore CONFIG_PHYSICAL_START option

2007-01-06T07:55:23+00:00

o Relocatable bzImage support had got rid of CONFIG_PHYSICAL_START option
  thinking that now this option is not required as people can build a
  second kernel as relocatable and load it anywhere. So need of compiling
  the kernel for a custom address was gone. But Magnus uses vmlinux images
  for second kernel in Xen environment and he wants to continue to use
  it.

o Restoring the CONFIG_PHYSICAL_START option for the time being. I think
  down the line we can get rid of it.

Signed-off-by: Vivek Goyal 
Cc: "Eric W. Biederman" 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

2006-12-23T02:46:56+00:00

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (68 commits)
  ACPI: replace kmalloc+memset with kzalloc
  ACPI: Add support for acpi_load_table/acpi_unload_table_id
  fbdev: update after backlight argument change
  ACPI: video: Add dev argument for backlight_device_register
  ACPI: Implement acpi_video_get_next_level()
  ACPI: Kconfig - depend on PM rather than selecting it
  ACPI: fix NULL check in drivers/acpi/osl.c
  ACPI: make drivers/acpi/ec.c:ec_ecdt static
  ACPI: prevent processor module from loading on failures
  ACPI: fix single linked list manipulation
  ACPI: ibm_acpi: allow clean removal
  ACPI: fix git automerge failure
  ACPI: ibm_acpi: respond to workqueue update
  ACPI: dock: add uevent to indicate change in device status
  ACPI: ec: Lindent once again
  ACPI: ec: Change #define to enums there possible.
  ACPI: ec: Style changes.
  ACPI: ec: Acquire Global Lock under EC mutex.
  ACPI: ec: Drop udelay() from poll mode. Loop by reading status field instead.
  ACPI: ec: Rename gpe_bit to gpe
  ...

[PATCH] compile error of register_memory()

2006-12-22T16:55:49+00:00

register_memory() becomes double definition in 2.6.20-rc1.  It is defined
in arch/i386/kernel/setup.c as static definition in 2.6.19.  But it is
moved to arch/i386/kernel/e820.c in 2.6.20-rc1.  And same name function is
defined in driver/base/memory.c too.  So, it becomes cause of compile error
of duplicate definition if memory hotplug option is on.

Signed-off-by: Yasunori Goto 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

merge linus into test branch

2006-12-20T07:53:13+00:00

Pull trivial into test branch

2006-12-16T05:45:07+00:00

Conflicts:

	drivers/acpi/ec.c

Remove stack unwinder for now

2006-12-15T16:47:51+00:00

It has caused more problems than it ever really solved, and is
apparently not getting cleaned up and fixed.  We can put it back when
it's stable and isn't likely to make warning or bug events worse.

In the meantime, enable frame pointers for more readable stack traces.

Signed-off-by: Linus Torvalds

[PATCH] Optimize D-cache alias handling on fork

2006-12-13T17:27:08+00:00

Virtually index, physically tagged cache architectures can get away
without cache flushing when forking.  This patch adds a new cache
flushing function flush_cache_dup_mm(struct mm_struct *) which for the
moment I've implemented to do the same thing on all architectures
except on MIPS where it's a no-op.

Signed-off-by: Ralf Baechle 
Signed-off-by: Linus Torvalds