[PATCH v2 0/7] Patches for kdump vs. INIT

[Hidetoshi Seto]

Hi all,

Here is the updated version:
 - Better descriptions with justifiable reasons
 - Add comments to point where the mask is removed
 - Move extern to header file
 - Minor fix for style, typo
 - No changes in logic

Thanks,
H.Seto

===

Hidetoshi Seto (7):
      ia64, kdump: Mask MCA/INIT on frozen cpus
      ia64, kexec: Make INIT safe while transition to kdump/kexec kernel
      ia64, kexec: Unregister MCA handler before kexec
      ia64, kdump: Don't return APs to SAL from kdump
      ia64, kdump: Mask INIT first in panic-kdump path
      ia64, kdump: Try INIT regardless of kdump_on_init
      ia64, kdump: Short path to freeze CPUs

 arch/ia64/include/asm/mca.h        |    2 +
 arch/ia64/kernel/crash.c           |   83 ++++++++++++++++++++++++-----------
 arch/ia64/kernel/head.S            |    2 +-
 arch/ia64/kernel/machine_kexec.c   |   15 ++++++
 arch/ia64/kernel/mca.c             |   15 ++++++-
 arch/ia64/kernel/mca_asm.S         |   47 ++++++++++++++++++++
 arch/ia64/kernel/relocate_kernel.S |    2 +-
 7 files changed, 136 insertions(+), 30 deletions(-)

Hidetoshi Seto wrote:
> Hi Tony-san, and kdump folks,
> 
> I got some trouble on kdump on IPF with INIT, and my investigation
> proves there are some bugs and races in startup of kdump.
> Here are fixes based on .30, for issues I found.
> 
> Since it must be serious problem for (likely big) IPF servers if we
> could fail to retrieve crashdump via kdump, so I believe these patches
> should be applied asap.
> 
> 
> Thanks,
> H.Seto
> 
> ===
> 
> Hidetoshi Seto (7):
>       ia64, kdump: Mask MCA/INIT on freezing cpus
>       ia64, kexec: Make INIT safe while kdump/kexec
>       ia64, kexec: Unregister MCA handler before kexec
>       ia64, kdump: Don't offline APs
>       ia64, kdump: Mask INIT first in panic-kdump path
>       ia64, kdump: Try INIT regardless of kdump_on_init
>       ia64, kdump: Short path to freeze CPUs
> 
>  arch/ia64/kernel/crash.c         |   85 ++++++++++++++++++++++++++------------
>  arch/ia64/kernel/machine_kexec.c |   17 ++++++++
>  arch/ia64/kernel/mca.c           |   15 ++++++-
>  arch/ia64/kernel/mca_asm.S       |   47 +++++++++++++++++++++
>  4 files changed, 136 insertions(+), 28 deletions(-)