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

Hidetoshi Seto
2009-07-09T07:02:54Z

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(-)